safe boost pressure after blowing engine!!!!

[cragmaz]

HiYa all,

well my 850 T5 has been a readview almost a week now getting a replacement engine (and more!) fitted, due to blowing my bottom end out, due to a kamikaze physico map on my ecu!!!

Anyway we read the file, and to our horror, it was running far,far too lean with no ignition retard whatsoever, too much boost and no boost limiter, i saw just short of 25 psi on my boost guage on the motorway just minuites before it started sounding like an old diesel!!!
Anyway, along with the engine, i have got a standard T5 ecu from readview to put me on till i get mine remapped properly, but am not really sure what safe boost i should be running, as i have a 19T turbo, massive kalmar union intercooler, a BSR intake, along with a custom downpipe, sports cat and a full milltek exhaust system, i reckon about 15 psi, but am not too sure, dont wanna risk blowing it up again, anyone got any advice????

cheers

craig

[t5 pete]

if i were you i wouldnt have the boost over 20psi and would have a afr monitor fitted there not cheap around 300 but can save you a lot of money in the long run i just have the standard rica 304 on my 850 t5 with 15g turbo and thats at 15-16psi

[T5-TEZ]

MTE is a very safe bet Craig.Give Don a ring and the good thing is if you upgrade parts at a later date the map can be altered to suit.

[pangster]

First off - I'm gutted for you having problems with your car, especially so soon after getting it. I can imagine how pissed off you are - FWIW I thought the car is stunning and I'm sure it won't be long before you get it up and running to its former glory (or even better/safer! :) )

MTE's not the only option as far as mapping goes to be fair and it would depend on what you want from the car and where you live/how far you're willing to travel and your overall goals/aims with the car as well as what resources you have available to you fairly locally? and of course how much you want to spend.

As far as getting custom mapped in future goes that will depend entirely on when the mapper is in the country and whether he/you are prepared to travel (as yours is an 850 you cannot take advantage of the MTE softloader - which seems like a fairly decent bit of kit and allows for remote mapping/data logging which overcomes this restriction on ME7 cars).

Have a think about what you want - i.e. a remap (MTE etc) or an ECU replacement (piggyback or standalone) as there are quite a few options available for these as well and speak to tuners directly regarding what they can do for you in terms of your goals/aims. The bottom line regardless of what option you go for is that ultimately your car will only perform as well as the map that's written for it - as you've already found out.

I would also invest in an Innovate or AEM wideband AFR gauge to monitor things once its mapped! :)

Good luck with it all! :)

[volvolised]

Very sorry to hear thatcraig, i have my rica 19t ecu for sale if your interested i ran this for two years no probs but i had white injectors with it, which just by chance are for sale too..you defo need an afr gauge ..i'll pm you my number if you ok

[tandino]

Gutted,
I was the 'other' guy who wanted Pauls T5.
Sounds like i had a lucky escape especially after reading it was overboosting on the way back home.
If your still running stock orange injectors 15psi max for now.
Hope you get it sorted....

**Edited by Justin (Slanderous)

Hardly slanderous just reiterating what Craig has said in his original post,obviously a cover up occuring here!!!!

[cragmaz]

Gutted,
I was the 'other' guy who wanted Pauls T5.
Sounds like i had a lucky escape especially after reading it was overboosting on the way back home.
If your still running stock orange injectors 15psi max for now.
Hope you get it sorted....



Yeh, too right mate!!!!

[850twr]

sorry to hear that craig, 25psi is a bit excessive ! what millage was the car at by the way?

[t5 pete]

Also has the internals been uprated on this car?, do you know who actually did this set up on your car?, because doing the 19t on standard injectors and such high boost is obviously going to cause problems. I know my mate with the cossy runs 30psi with a garret turbo he has just has his mot done and the emmisions were double what they should have been, obviously going to cause problems it seems the people who have problems are the ones with obvious wrong part and map E.G. injectors and map. I hope you get it all sorted, the only thing I would recomend is that you do a hell of a lot of research and get the correct components, dont rush into gettting it done if you lose 30bhp but its safe go for that. Excuse my spelling but been on the pop most of today.


****Edited by T.c.***.....Sorry Pete but you must have had a hell of a lot of pop, that was almost unreadable until I put some punctuation in it.

[Justin]

Cragmaz, really bad news re the car, I had a top end rebuild on my S70 done by superchips for melting a piston or 2.

Re your inital statement that it was a HLM map, For clarity, 4 + years ago the were not called HLM but Chip tuning. HLM is what they are now called :)

Secondly, according to Paul the car has been looked after and heavily modded by RT mechanics for the last 4 years, so in all honesty i would find it hard to believe that the map (running that boost etc) would take 4 years to blow an engine.

Original advert: http://www.vpcuk.org/forums/showthread.php?t=18281

Thus i have edited/removed your last sentence on the first post.

I know from many accounts that Paul doted over that car and choose wisely on where and what to mod, if it lasted him 4 years with many additional mods i would think its fair to say that its not the remap that cause the failure. That is unless its original state has been altered over time. It could have been easily caused by a faulty bcs for instance.

Due to the nature of the net, as these statements are not (at this time) factual i have edited them.

On another note whom is looking after the car now as i know you were looking for a Leeds area specialist?

[T5-TEZ]

Surely this car shouldn't`t have been running standard orange injectors with the 19t and re-map?

[t5 pete]

Also has the internals been uprated on this car?, do you know who actually did this set up on your car?, because doing the 19t on standard injectors and such high boost is obviously going to cause problems. I know my mate with the cossy runs 30psi with a garret turbo he has just has his mot done and the emmisions were double what they should have been, obviously going to cause problems it seems the people who have problems are the ones with obvious wrong part and map E.G. injectors and map. I hope you get it all sorted, the only thing I would recomend is that you do a hell of a lot of research and get the correct components, dont rush into gettting it done if you lose 30bhp but its safe go for that. Excuse my spelling but been on the pop most of today.


****Edited by T.c.***.....Sorry Pete but you must have had a hell of a lot of pop, that was almost unreadable until I put some punctuation in it.

Cheers tc i was quite drunk last nite

[Justin]

Surely this car shouldn't`t have been running standard orange injectors with the 19t and re-map?

I did on my S70 T5 that is still going strong now Tez. Do The S/V70R cars come with whites or orange, i cant remember?

[tandino]

Obviously some sort of conspiracy going on here it seems that although the car was set up by a certain tuner on here with no overboost protection amongst other things mentioning their name in conjunction with what has happened to this car leads to all trace being removed.
Justin can you please explain why all the factual detail has been removed from Craigs first post?

[T5-TEZ]

I did on my S70 T5 that is still going strong now Tez. Do The S/V70R cars come with whites or orange, i cant remember?

I thought the v70r came with green but i could be wrong,someone will let me know Im sure.

[irf]

I did on my S70 T5 that is still going strong now Tez. Do The S/V70R cars come with whites or orange, i cant remember?

pretty sure it's whites.

i'm sure a 19T can be run on oranges but i wouldn't. you may be able to put your foot down for some bursts here and there on the road but for an extended blast(track or autobahn) EGTs must get silly.

these cars are supposed to excel on highway work.

just my opinion.

sorry, should have read properly, the S/V 70R came with greens i think.

the S/V70 T5 came with whites

[S70T5Chris]

Craig, very sorry to hear that this has happened to you. I know exactly how you feel. I hope you get it all sorted.

As far as I know all 850 T5's came with oranges, P1 all S/V70 T5's came with whites.

I remember having a conversation with a volvo tuner a couple of years ago about injectors, and from what I remember he couldn't believe that people were running 19t's with orange injectors. From what I remember him telling me, the oranges are virtually at their limit with an of the shelf remap so with a 19t, they are just not adequate.

[S70T5Chris]

Cragmaz, really bad news re the car, I had a top end rebuild on my S70 done by superchips for melting a piston or 2.

Re your inital statement that it was a HLM map, For clarity, 4 + years ago the were not called HLM but Chip tuning. HLM is what they are now called :)

Just for everyone's information I have a bill for £1200 dated 25/10/2003 From HLM for the follwoing work: Eibach Springs, front brake pads/discs, ITG panel filter, Rica 310 ECU upgrade. So your information isn't correct Justin.

Ps, remaps were a lot more money back in the day, hence the total bill!!

[pangster]

I was reading back through the original 'for sale' thread for this car and noticed that the OP had been advised (quite a few times) to turn the boost down and go easy with it until he got the running issues resolved i.e. spluttering at high revs/high boost etc.

Given the fact he seen c25 psi on the motorway before it went bang would suggest that he didn't heed that advice and the end result is a blown engine. I had always thought that 19-20 psi was the limit on stock internals?

I don't think this is necessarily a cause for a witch hunt or looking for someone to blame (leave that to other forums) or speculating what caused the catastrophic failure (there seems to be a fair amount of assumptions being made).

To me it looked like (and still is) a very good car. Which seemed to run faultlessly for 4 years or so - which is confirmed by more than one person. The new owner bought the car, had some concerns with how it was running, asked for advice - was given sound advice (from pretty experienced/knowledgeable people) by all accounts but run/drove the car hard? regardless.

Seems like a pretty expensive lesson to learn though.

[Justin]

Obviously some sort of conspiracy going on here it seems that although the car was set up by a certain tuner on here with no overboost protection amongst other things mentioning their name in conjunction with what has happened to this car leads to all trace being removed.
Justin can you please explain why all the factual detail has been removed from Craigs first post?

I have already, think what you wish.


Just for everyone's information I have a bill for £1200 dated 25/10/2003 From HLM for the follwoing work: Eibach Springs, front brake pads/discs, ITG panel filter, Rica 310 ECU upgrade. So your information isn't correct Justin.

Ps, remaps were a lot more money back in the day, hence the total bill!!

Yes that may be the case, but only as there are mechanical upgrades too, ie if it had been just a remap it would have been just chip tuning.

Ultimately, the "BOTTOM" end went bang due to excessive boost, not running lean. I believe Paul posted a dyno plot with AFR and all was well (according to many of you who seem to know) and that was even with a larger intercooler fitted. The point i was making is that one. Its not a melted top end.

As for the HLM/Chip tuning debate, I am stating what i know, for the simple reason of legalities. they are based at the same place as before with most of the same staff, but the remapping side was done by Chip tuning back then. :)

[RT MECHANICS]

[QUOTE=Justin;197202]Cragmaz,

Secondly, according to Paul the car has been looked after and heavily modded by RT mechanics for the last 4 years, so in all honesty i would find it hard to believe that the map (running that boost etc) would take 4 years to blow an engine.

Hi Justin :)

Just to make it very clear as i don't want any incorrect info about me is i have done NO engine tuning at all on Pauls old car i have only fitted S uspension/brakes etc to the car we do not do custom maps at all on volvo software :)

Russ

[Justin]

Hi Russ,

Thanks for that. I wasn't saying you had btw :)

[cragmaz]

it seems i may have upset a couple of people with regards to my comments about my car, and to those involved, i appologise, i was very angry and deeply p****d off with regards to my car, i never intended to upset people, so i am very sorry if i did.
I suppose i am just as much to blame for driving it hard, but dint expect it to run as much boost with no limit.


Anyway thats done now and I get the car back this week with a bit of luck, and am going to have to investigate a number of things to make sure this never happens again, it will be running a standard T5 ECU for now, i am thinking i will have to put on a standard volvo boost control solenoid,but not sure! and poss a set of white injectors, so its got a long way to go, but i would rather have a safe reliable car!,
Can anyone advise with the above suggestions please, and again to those upset by my comments, i am very sorry, was just well f****d off with this happening after just 3 days of ownership!!!

Best Regards
Craig

[t5 pete]

hi i would either put white injectors or green ones on also i think when running the 19t the standard volvo 850 bcs doesnt like it so many people fit a mbc also when you change the injectors you will probley will need to get another map i would most likley have the psi set between 15 - 16 psi with the standard internals if you have stronger ones i would only take it to a max of 20psi its better to be safe and realible than sorry also if you do have standard internals i would be very carefull and low speeds in high gears i forgot to ask what gear and speed were you in on the motorway when the bottom let go?

[pangster]

it seems i may have upset a couple of people with regards to my comments about my car, and to those involved, i appologise, i was very angry and deeply p****d off with regards to my car, i never intended to upset people, so i am very sorry if i did.
I suppose i am just as much to blame for driving it hard, but dint expect it to run as much boost with no limit.


Anyway thats done now and I get the car back this week with a bit of luck, and am going to have to investigate a number of things to make sure this never happens again, it will be running a standard T5 ECU for now, i am thinking i will have to put on a standard volvo boost control solenoid,but not sure! and poss a set of white injectors, so its got a long way to go, but i would rather have a safe reliable car!,
Can anyone advise with the above suggestions please, and again to those upset by my comments, i am very sorry, was just well f****d off with this happening after just 3 days of ownership!!!

Best Regards
Craig

I don't think you have anything to apologise for Craig! :).. the only issue that ever crops up when a post like this appears is that people start making accusations or innuendos/assumptions without knowing all of the facts and start jumping to conclusions or starting rumours of another VPC conspiracy or cover up etc. A certain alternative Volvo forum thrives on threads like this and a quick scan over their confirms that they haven't failed with this opportunity either! lol! :)

Regardless, I hope you get it sorted and up and running safely!! :) - and definately invest in an AFR and maybe an EGT gauge if you get the chance or are planning on modding it to it's former levels! :)

[Justin]

Good luck with the project, as pangster said, it wasnt down to you. :)

[irf]

i don't think anyone could fail to be peed off!

won't comment on the whole T5D5 v VPCUK thing.

i wouldn't put greens in as afaik if the map isn't written specifically for greens it will throw an engine light on and will go in limp home mode.

i have white injectors with an 18T but i'd be inclined to go with blues on a 19T. either will probably be fine, oranges are a no no.

you could just chuck in a set of whites or blues and it may be fine, it might not. i would strongly urge you to at the very least, get the car on any dyno that can read your AFRs and go from there.

with the standard ecu i would personally let the ecu and the bcs control the boost rather then going for 15psi. better a slow car(comparitively) then a blown one.

best of luck, what a sad introduction to the volvo world.

[t5 pete]

i don't think anyone could fail to be peed off!

won't comment on the whole T5D5 v VPCUK thing.

i wouldn't put greens in as afaik if the map isn't written specifically for greens it will throw an engine light on and will go in limp home mode.

i have white injectors with an 18T but i'd be inclined to go with blues on a 19T. either will probably be fine, oranges are a no no.

you could just chuck in a set of whites or blues and it may be fine, it might not. i would strongly urge you to at the very least, get the car on any dyno that can read your AFRs and go from there.

with the standard ecu i would personally let the ecu and the bcs control the boost rather then going for 15psi. better a slow car(comparitively) then a blown one.

best of luck, what a sad introduction to the volvo world.

yes my fault i do get the green and blue injectors mixed up and yes i wouldnt put the greens in but would use the blues with the 19t what i was saying with regards to the 15- 16psi is the most i would go to with standard internals as you said better a slow car (comparitvely) than a blown one
cheers pete

[cragmaz]

hi i would either put white injectors or green ones on also i think when running the 19t the standard volvo 850 bcs doesnt like it so many people fit a mbc also when you change the injectors you will probley will need to get another map i would most likley have the psi set between 15 - 16 psi with the standard internals if you have stronger ones i would only take it to a max of 20psi its better to be safe and realible than sorry also if you do have standard internals i would be very carefull and low speeds in high gears i forgot to ask what gear and speed were you in on the motorway when the bottom let go?


Pete, whats an "mbc" you speak about, soz to be a dummy!!!:smirk:

[pangster]

Pete, whats an "mbc" you speak about, soz to be a dummy!!!:smirk:

manual boost controller... :)

[t5 pete]

its a manual boost controll if you decide to fit it i would have the car on the rollers or have the map and rollers to see if your afr's are ok all it does it increase the boost pressure to what you want but doesnt change the fueling so if fitted i would get a custom map to accompany it and make sure the afr's are correct

[cragmaz]

oh, also guys, can i get hold of a set of white/blue injectors easily, and an estimate of cost would be good if anybody knows please.;)

whats the diff between the white/blues, and how easy are they to fit??

To be honest, i am a bit surprised the previous owner dint uprate them when he fit the 19T:wallbash:

[t5 pete]

i know hlm can supply new or reconn there easiy enought to fit all they do is allow better flow the white and blue injectors seem to be the favourate choice for the 19t but if you fit them please make sure you get the afr's cheacked of fit a afr monitor

[pangster]

oh, also guys, can i get hold of a set of white/blue injectors easily, and an estimate of cost would be good if anybody knows please.;)

whats the diff between the white/blues, and how easy are they to fit??

To be honest, i am a bit surprised the previous owner dint uprate them when he fit the 19T:wallbash:

I think the whites are 350 CC and the blues are 395 CC but you need the ones that your map has been written for..

from what I've read you want to match your injectors for your mapped power levels and ideally aim to keep injector duty cycles below 80-85%..

[volvolised]

The whites are fine with the 19T bearing in mind you will never run it at full potential if you've not had the rods don..i.e WOT at low revs high gear...if rods are done and you have acceptable injectors, greens, you need a proper custom map from ???........(lets let pangster tell us)..mbc is a bad idea unles you've afr and accurate boost gauge and basicaly know what you're doing..

[siamblue]

I would just like to point out that this car was Paul's wifes daily drive, As i have seen it nearly everyday for the past 4 plus years, plus Paul looked after this car and never used the full power in anger,

Gary

[pangster]

The whites are fine with the 19T bearing in mind you will never run it at full potential if you've not had the rods don..i.e WOT at low revs high gear...if rods are done and you have acceptable injectors, greens, you need a proper custom map from ???........(lets let pangster tell us)..mbc is a bad idea unles you've afr and accurate boost gauge and basicaly know what you're doing..

I think I've already answered that warren?:



MTE's not the only option as far as mapping goes to be fair and it would depend on what you want from the car and where you live/how far you're willing to travel and your overall goals/aims with the car as well as what resources you have available to you fairly locally? and of course how much you want to spend.

As far as getting custom mapped in future goes that will depend entirely on when the mapper is in the country and whether he/you are prepared to travel (as yours is an 850 you cannot take advantage of the MTE softloader - which seems like a fairly decent bit of kit and allows for remote mapping/data logging which overcomes this restriction on ME7 cars).

Have a think about what you want - i.e. a remap (MTE etc) or an ECU replacement (piggyback or standalone) as there are quite a few options available for these as well and speak to tuners directly regarding what they can do for you in terms of your goals/aims. The bottom line regardless of what option you go for is that ultimately your car will only perform as well as the map that's written for it - as you've already found out.

I would also invest in an Innovate or AEM wideband AFR gauge to monitor things once its mapped! :)

Good luck with it all! :)

For me (personally) if I was going down the custom mapping/tuning route then I would probably look into getting a Dastek Unichip mapped by Gerry Gaffney. For the sole reason that they have a rock solid reputation for mapping a whole range of cars (ask Ross9 about Jacq's T4 for example) and they are about 25 minutes away (I wouldn't have to wait 6 months until the tuner was in the country or travel the length and breadth to get it done.. :) ). If my spec changed in future then it wouldn't be a chore to have the Unichip remapped for future mods - but then again this is a piggyback option and not a remap - which is why I differentiated the two before.

Some other options are:
Greddy eManage/eManage Ultimate
Civinco
Megasquirt
Gems
Hydra
Haltech
Link
Motec
Omex

It all depends what the OP wants and what he has in terms of resources local to him or is willing to travel for and what he wants to spend and what his future plans are and whether he wants a map or an standalone ecu or piggyback..

[volvolised]

Haven't heard much about unichip so let us know how it goes....when you getting yours chipped ?...

[pangster]

Haven't heard much about unichip so let us know how it goes....when you getting yours chipped ?...

once I'm completely happy with mine and have all my 'niggles' sorted I'll get it chipped- not too much to do now though..

EDIT: link to Unichip info:

UNICHIP (http://www.paullynch.pwp.blueyonder.co.uk/unichip.pdf)

[volvolised]

once I'm completely happy with mine and have all my 'niggles' sorted - not too much to do now though..

Is that you russ ???, crikey pangster i know you copy and post but that isn't one and i'm sure russ posted that almost word for word..lol...c'mon if your'e that worried about niggles being sorted you must know who you trust to map it..unichip then..

[pangster]

Is that you russ ???, crikey pangster i know you copy and post but that isn't one and i'm sure russ posted that almost word for word..lol...c'mon if your'e that worried about niggles being sorted you must know who you trust to map it..unichip then..

sorry?? - you've lost me?

I've already said who I'd have map it?



For me (personally) if I was going down the custom mapping/tuning route then I would probably look into getting a Dastek Unichip mapped by Gerry Gaffney. For the sole reason that they have a rock solid reputation for mapping a whole range of cars (ask Ross9 about Jacq's T4 for example) and they are about 25 minutes away (I wouldn't have to wait 6 months until the tuner was in the country or travel the length and breadth to get it done..

And I'm not 100% happy with mine at the minute.. so why would I map it??.. you're making absolutely no sense (as usual) - and to be fair my car or what map I choose isn't what's being discussed here and isn't relevant?..

[volvolised]

Didn't mean to upset you , just asking ...

[pangster]

Didn't mean to upset you , just asking ...

:hilarious you didn't upset me?? But I had already answered your questions in previous posts.. I also gave you a link for the Unichip PDF.

EDIT: (as V70Ben seems to be trying to confuse the situation on T5D5 - for a change! :)) - So to clarify nowhere have I mentioned that a Dastek Unichip is on Jacq's T4?. From what I read, Jacq took her T4 to Dastek for a Unichip when it was relatively stock (not long after they got it) and Gerry spent a whole day fitting the Unichip and mapping the car and only managed to get an increase of 9 Bhp. Gerry removed the Unichip and did not charge for this work and confirmed to Ross and Jacq that their T4 already appeared to be mapped (squeezing an extra 9 bhp from an already mapped car is pretty good though IMHO! lol! :) )

You can read Ross's own account of his experience with Dastek here:

http://www.vpcuk.org/forums/showthread.php?t=18794&highlight=ross9



They RR'd it before and it got 228 bhp and a peak torque of 261 lb.ft, though it dropped almost instantly and held more like 240 ( a tad higher than standard lol) so they put the unichip on and mapped it up, got 9bhp more, removed it all and phoned us, said they couldnt justify the cost for 9bhp, reckoned someone had fiddled with it already (more on this later) and gave us the RT plots and no charge for the days work, immense service.

Seems like a fairly decent appraisal if you ask me? How many other tuners wouldn't charge for this work? - They also have the added bonus that you don't need to travel the length of breadth of the country to get it mapped, are limited to a small window of availability or have the tuner kip on your couch when they're mapping your car!! ROFPMSL!! Or have to yank your ECU out and post it away with your car being off the road for a couple of days whilst they turn it round.

I've looked into this and this is the best option for me.. it might not be the best option for other people - but there are OPTIONS out there.. lol!! :) I've spoken to Gerry a few times and had different cars run there and have only heard good things about him. He doesn't sell you anything you don't need, attack competitors products to try and sell his etc - he relies on his reputation and the strength of the products he has to sell themselves. He also maps a whole range of cars on a whole range of ECU's.

Also the Unichips features and flexibility also match what I'm looking for - they may not match what other people want though, hence why I said to investigate what options are available and best suited to their needs.

[pault5]

Hello All,
I would like to say that I am gutted/sorry for Craig. for what has happened, I feel terrible.
I have spoken to him today.
All I can add is that the car never boosted past 20psi since the map was done nearly 3 years ago. I suspect the bcs failed, it was not a standard bcs but was already fitted when it was put on the dyno a few months back to check the afr's which according to the dyno were o.k.
I would never have sold the car with any kind of fault that I knew about.
Just to add that RT Mechanics never worked on the engine accept for 1 oil change.
Paul

[pangster]

Hello All,
I would like to say that I am gutted/sorry for Craig. for what has happened, I feel terrible.
I have spoken to him today.
All I can add is that the car never boosted past 20psi since the map was done nearly 3 years ago. I suspect the bcs failed, it was not a standard bcs but was already fitted when it was put on the dyno a few months back to check the afr's which according to the dyno were o.k.
I would never have sold the car with any kind of fault that I knew about.
Just to add that RT Mechanics never worked on the engine accept for 1 oil change.
Paul

Don't feel you need to post up and apologise due some of the comments made by muppets on another forum! - I said the same to Craig! :)

Neither of you need to justify yourselves or apologise to anyone IMHO!! It is what it is - leave it for others to speculate on other forums as to what 'they' think might have been the culprit/cause or who they want to blame! :)

[bonelorry]

im very sorry to hear about your mishap craig, i was very interested in buying this car and i feel paul was very honest and wouldnt have sold you or anyone the car having known there was a fault!

ill re-post this from a thread a while back which i wrote.....



i think the rule of thumb for most GOOD tuners is 1.4bar of boost on stock rods, so with that in mind a good quality EBC such as an apexi avcr to control the boost delivery might be a good idea???

you do want lots of torque from the car as this makes it drivable but you dont want too much boost lower down the rev range i.e below 3000rpm as this is the point of rod failure.

another thing thats overlooked is that the standard 850bcs doesnt cope too well controlling a 19t, its deemed by some people by responding too slowly at reacting and this can cause severe boost spikes to over 20psi which is lethal on an 850!

alot of people disagree with using alternative methods of controlling boost on t5's but when my stock 1 year old bcs was playing up on my 850 i replaced it with a good quality MBC and set it to 17-18psi, it cured all my spiking problems and made the car drive much better.

thing is its best to be safe than sorry! id rather loose 10-15bhp in the hope that the car will last.



im not sure if anyone will agree with that but ive had 2 cars which both had stage 2 rica/19t conversions and where both done at VT, both cars never ever had any problems!

my 850 t5 had the exact spec yours has minus the intercooler and still ran the orange injectors which arnt ideal but non the less it never ever broke and it got alot of hard driving from myself and the last owner!

as paul said he suspects the failure of the BCS and i aslo feel this is very possible, my BCS on the 850 was acting up giving me spikes and very unconsistant boost levels, i disconnected it and used a good MBC in its place and the car was 100% better! 19t's on 850's with stock BCS is a NONO IMHO!

anyway good luck with the car and i hope it gets sorted but if your going to rebuild it do it properly!

to get the best out of your car id personally fit some forged conrods, give it a good service (cambelt, waterpump etc) and get the basics right then run the car in usuing standard boost levels. once happy with that buy some green or blue injectors (which can be found on ebay or on here) and take the car to get it custom mapped and get the injectors fitted either MTE or HLM and you should be well away.

[cragmaz]

Right,

She`s back on the road now, and running sweet (so far!!!!),
Taken a few safety precautions tho, had Readview fit a set of Blue injectors and a standard T5 ECU, just while i get it on the dyno, and get her mapped properly.

Anyway, now she boosts at a fraction over 10psi on full load, and is surprisingly quick, but i dunno how far to go with the forthcoming re-map, i am thinking 15psi max, what do you all think, is that too much????

Thanks in advance

craig

[t5 pete]

have you got standard rods in? if so i would go to a max of 15psi if there forged ones i would go to a max of 20psi probley keep it around 18-19psi

[irf]

Right,

She`s back on the road now, and running sweet (so far!!!!),
Taken a few safety precautions tho, had Readview fit a set of Blue injectors and a standard T5 ECU, just while i get it on the dyno, and get her mapped properly.

Anyway, now she boosts at a fraction over 10psi on full load, and is surprisingly quick, but i dunno how far to go with the forthcoming re-map, i am thinking 15psi max, what do you all think, is that too much????

Thanks in advance

craig

if i've got this right you're asking how far you can go with the blue injectors in and the remap at the same time?

whatever the mapper deems fit really. you don't say where you're going for the remap.

with a 19T and those injectors you can pretty much run to the maximum efficiency of that turbo. i'd hazard a guess at between 1.3 and 1.5 bar.

just a suggestion though, on a car with standard rods i would try and get your boost to come in smoothly and aim for full boost from 4k onwards. you can, i'm pretty sure bend those rods with those kind of boost pressures low down. 4k and above, it's all good.

best of luck.