Silver C70 T5 - Manual - 400BHP

**Wobbly Dave** · Tuesday 22nd November 2011, 15:23

Not that I can tell. M56L was AFAIK the original. I know that version 1 box was slightly different as the push rod arm (the vertical one) was a different length to that of Betsy's original box. Not sure which box is in there now - I am just guessing that it will be M56L as supplied by Salvo.

Sorry but I don't have the tech spec on the differences.

**p fandango** · Tuesday 22nd November 2011, 15:29

Originally Posted by Wobbly Dave

Not that I can tell. M56L was AFAIK the original. I know that version 1 box was slightly different as the push rod arm (the vertical one) was a different length to that of Betsy's original box. Not sure which box is in there now - I am just guessing that it will be M56L as supplied by Salvo.

Sorry but I don't have the tech spec on the differences.

i thought all T-5's had M56H's. The actual gear ratios were only different on 1st & 2nd (L lower ratio, H higher) but the L normally had a different final ratio than we have. If you've managed to get one with the same final drive you might not of noticed any difference which might explain it. I've not managed to figure out where the final drive ratio is written on a gearbox

**Wobbly Dave** · Tuesday 22nd November 2011, 15:32

I will have a look at the housing what is sitting in the shed - from version 1.

**Wobbly Dave** · Sunday 4th December 2011, 01:46

Fitted R-Style gauge rings to the instrument binancle - so Betsy has yet more bling. I think they look smart.

Been doing some more testing now I have fitted new MAP & IAT sensors to the inlet manifold pipe. The logged figures appear more accurate to what I'd seen on the old ones - about 1 psi less. The new BT/ODBII does seem to have reduced some of the data lag - though I think I am limited within the bounds of the BT bandwidth.

I think for total accuracy I will have to use the software/laptop option & connect via USB to the ECU. The max polling interval with TORQUE's data logger is only once every second, which is disappointing. GPS speed logging seems particularly laggy. Track recorder values do not render properly to the PC - however they do look ok on the phone (matching the recorded sound)

I have reached the conclusion however - that there is not much more than I can do to the tuning in Betsy's current configuration. I may yet look to a more youthful engine & a turbo change for next season.

I have been uming & aring about buying one of these to further improve throttle response
http://www.ecotek.eu/CB-26P.htm

Anyone have any thoughts - they seem expensive for the limited application on a trailing throttle - so I am not sure.

**M-R-P** · Sunday 4th December 2011, 02:19

Three letters Dave, N O S

**Wobbly Dave** · Sunday 4th December 2011, 10:36

At the moment I am leaning towards getting a younger ME7 engine and throwing some forged rods in it

**smithy** · Sunday 4th December 2011, 11:28

forged rods and modded 19t with 20g wheels and bored out run it at 1.6 bar that should make a big difference and would not cost you a fortune ether just and revised map mate.

**T5frankie** · Sunday 4th December 2011, 11:30

Originally Posted by smithy

forged rods and modded 19t with 20g wheels and bored out run it at 1.6 bar that should make a big difference and would not cost you a fortune ether just and revised map mate.

who would do that?

**smithy** · Sunday 4th December 2011, 11:32

Originally Posted by t5frankie

who would do that?

i dont know mate lol

**t5_monkey** · Sunday 4th December 2011, 11:35

Originally Posted by smithy

forged rods and modded 19t with 20g wheels and bored out run it at 1.6 bar that should make a big difference and would not cost you a fortune ether just and revised map mate.

Is that what Jardon has on his?

**T5frankie** · Sunday 4th December 2011, 11:39

Originally Posted by smithy

i dont know mate lol

yes you do lol

**smithy** · Sunday 4th December 2011, 11:42

Originally Posted by t5frankie

yes you do lol

no mate i dont know what you are talking about all the garages do all my work i know nothing lol

**T5frankie** · Sunday 4th December 2011, 11:44

Originally Posted by smithy

no mate i dont know what you are talking about all the garages do all my work i know nothing lol

ok turbo technics i get you

**smithy** · Sunday 4th December 2011, 11:53

who are those mate ive never heard of them mate can you pass me the number please lol,from what i have heard turbo dynamics do a similar sort of thing aswell thats who hlm deal with hint hint.but all this info is only what i see on the internet and on forums me dont know nothing lol,come on dave you know you want to.

**T5frankie** · Sunday 4th December 2011, 11:59

Originally Posted by smithy

who are those mate ive never heard of them mate can you pass me the number please lol,from what i have heard turbo dynamics do a similar sort of thing aswell thats who hlm deal with hint hint.but all this info is only what i see on the internet and on forums me dont know nothing lol,come on dave you know you want to.

you ok mate?

**smithy** · Sunday 4th December 2011, 12:03

Originally Posted by t5frankie

you ok mate?

why just got up brains a cabbage thinking about its aways a cabbage lately lol.

**Wobbly Dave** · Sunday 4th December 2011, 14:29

I was hoping for a bit of technical input on the donor engine strip down. I have been looking at rods - but I am uncertain where to get them from. I am not certain if the bottom half of the B5234T3 engine is the same.as the older 2319cc B5234T5 engine (pre 99).

I am also wondering about the health of the donor engine once the head is off. Do I need a superdooper headgasket or will a replacement OEM do - should I get the head skimmed - is a headgasket reusable - are the headbolts a once only use?

What other internal components should be done? Can some of the more experience members (James & Smithy etc) characterise these into 3 categories (Essential, recommended & nice to have).

I do not intend to do very much with the donor head.

The main driver for this is that Betsy's engine is old. She is due another cambelt - so I would rather spend that new cambelt money on the donor engine.

**smithy** · Sunday 4th December 2011, 16:43

if i was in your shoes with new baby and all due soon mate options are.second hand me7 engine easy to come by and not badly priced ether,set of rods from ths or similar and check condition of standard pistons .if pistons are good just change rods with new bearings and check the other bearings and components whilst there.bearings are normally pretty good and strong.have the head tested and use oem gasket pretty good for high boost .i recon engine rods and gasket set and put together for you budget for 1500 pounds mate.19t modded turbo using your turbo 350 pounds and revised map hlm to price .hope this helps mate.also check vvt pullys too might need new ones too

**Wobbly Dave** · Sunday 4th December 2011, 17:28

Would you be prepared to come round & check things over - I am reasonable good with spanners but would appreciate a second pair of eyes once taken apart. I have found these...

http://www.cambridgemotorsport.com/V...lo-Con-Rod-Set

what do you think?

**Jamest5r** · Sunday 4th December 2011, 17:51

I agree with most of what Smithy has said

however from my experience's i would always go down the route of having the block rebored and new pistons as well, no matter how good the 2nd hand block you get it will defo have some bore wear.

So what i done was Kalmar rods £380 and they come with the bolts.
Volvo 81.4mm pistons(mehle) with rings around £500.
Head Bolts(dont even think about reusing the old ones)
Gasket set.
Timing belt kit.
Water pump.

Then take it to an engine builder get him to check the bearing's etc(hopefully all ok) and bore it and build it, cost me around £500.

You are looking at the best part of 2k to get something that is worth doing.