Forge alloy piston CBV

Posts

Post 489728 by LeeT5 on 2012-04-22 13:11:23

Just bought myself one of these. Anyone here got one fitted? I will be using the yellow spring due to my car not being standard.

Post 489731 by T5frankie on 2012-04-22 13:15:49

what is it?

Post 489745 by dtp on 2012-04-22 13:53:07

I have got one of these fitted because my original one ripped and Volvo said it was not available as a spare part (new turbo only) It's a good piece of kit. Unlike the OEM unit, you can hear it open. The green spring can hold 1bar under its own tension, I have not tested the yellow spring yet. I have the yellow spring fitted as I have my car mapped.

Post 489751 by Kingsford G on 2012-04-22 14:07:53

Any links for the product?

Post 489757 by dtp on 2012-04-22 14:13:45

Google forge Motorsport Tewksbury they have it on their web site. I can't post links as I am on my phone.

Post 490172 by sizzlechest on 2012-04-23 14:02:37

Hi, I've got one fitted with the green spring. Have had the car mapped since so I suppose I should fit the yellow spring. Get ready to spend a couple of hours lying on top of the engine when you fit it - an old pillow comes in handy!

Post 490883 by s_cowen on 2012-04-24 19:09:42

Going to fit one of these soon do they make much difference?

Post 490903 by s_cowen on 2012-04-24 19:29:31

And here is a link for them...... http://www.ebay.co.uk/itm/FORGE-RECIRCULATION-DUMP-VALVE-VOLVO-C70-T5-2006-10-/130539552656?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e64c37f90#ht_525wt_952

Post 491236 by sizzlechest on 2012-04-25 13:21:43

[quote=s_cowen;490883]Going to fit one of these soon do they make much difference?[/quote] I don't have any hard data for you or a boost gauge to compare the pre/post CBV fitting. But from the seat-of-the-pants experience it was worth fitting. Boost levels don't seem to fade at higher RPM levels. It makes sweet music on cooler days when the air box lid is removed and the weather strip taken off.

Post 491654 by LeeT5 on 2012-04-26 14:31:18

[quote=sizzlechest;491236]I don't have any hard data for you or a boost gauge to compare the pre/post CBV fitting. But from the seat-of-the-pants experience it was worth fitting. Boost levels don't seem to fade at higher RPM levels. It makes sweet music on cooler days when the air box lid is removed and the weather strip taken off.[/quote] :D:D:D:D:D:D:D Mine just arrived today. Now i need a dry day to fit. Gonna fit IPD boost guage first thou so i can see difference aswell as feel it. Yellow spring is fitted too.

Post 491970 by sizzlechest on 2012-04-27 11:34:59

Good luck with the CBV - it is a tedious, frustrating install! :B_thumb:

Post 491987 by dtp on 2012-04-27 13:14:47

[quote=sizzlechest;491970]Good luck with the CBV - it is a tedious, frustrating install! :B_thumb:[/quote] Yea 1st time I changed mine it took 3 hours on my P2 because the bottom Allen bolt can only be accessed with a ball Allen key with double jointed adapter. Takes ages. When engine is cold disconnect water hose. Do not take cap off header tank and you will only loose about half ltr water as the system will lock. Make sure that you have the correct spring in (that's why I had to do mine twice) ;)

Post 492018 by LeeT5 on 2012-04-27 15:32:35

.....off t do mine now. Sun is shining....i will let you know.

Post 492035 by graemewelch on 2012-04-27 17:00:58

[quote=LeeT5;491654]:D:D:D:D:D:D:D Mine just arrived today. Now i need a dry day to fit. Gonna fit IPD boost guage first thou so i can see difference aswell as feel it. Yellow spring is fitted too.[/quote] any pics of the gauge. im thinkingof getting the ipd one. bit in the pricey size though

Post 492036 by volvokid on 2012-04-27 17:13:53

[quote=graemewelch;492035]any pics of the gauge. im thinkingof getting the ipd one. bit in the pricey size though[/quote] I love what this guy has done with his IPD

Post 492070 by graemewelch on 2012-04-27 18:35:43

[quote=volvokid;492036]I love what this guy has done with his IPD[/quote] i like that. looks factory to. id love some r dials for mine

Post 492107 by volvokid on 2012-04-27 19:03:34

Wish I could do that kinda stuff, I would have that in my car if its as good as that in real life. The R dials are nice people usually comment on them

Post 492439 by sizzlechest on 2012-04-28 17:34:35

[quote=LeeT5;492018].....off t do mine now. Sun is shining....i will let you know.[/quote] :wavey: .... did you finish.... ??

Post 493394 by kfc on 2012-04-30 22:12:57

that custum job is proper nice. might have have a go if i can find another insert.

Post 493397 by LeeT5 on 2012-04-30 22:18:52

[quote=sizzlechest;492439]:wavey: .... did you finish.... ??[/quote] Didn't even start. Had to fit IPD boost guage first....See How To section. Its a work in prgress.

Post 514024 by graemewelch on 2012-06-18 16:48:51

was it worth fitting then. considering getting one for mine.

Post 514031 by p fandango on 2012-06-18 17:05:15

[quote=s_cowen;490903]And here is a link for them...... http://www.ebay.co.uk/itm/FORGE-RECIRCULATION-DUMP-VALVE-VOLVO-C70-T5-2006-10-/130539552656?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item1e64c37f90#ht_525wt_952[/quote] hmm, been talking to Forge & they said to use this one LINK. Whether its different because its to go on an 850 (did tell them its for a 19t) i don't know

Post 517118 by red_hot_volvo on 2012-06-26 13:28:22

I've just bought one of these and I'm planning to fit it soon, obviously when I do the job I may be proved wrong, but as I see it, wouldn't it be easier to try and fit it from underneath the car, looks like better access than trying to attack it from the top, except for the top bolt. Also, does anyone know if you need a buy a gasket to fit this? I can see a big 'O' ring on the back of the device and I would presume that is the seal but, I don't want to start on this job to find I need a gasket. Any other complications from fitting this that I should be aware of? Also, I read with concern someone saying that if you remap your car, you may toast the clutch? Is it true? My car AFAIK is on the original clutch with 84,000 miles up but the bite point feels perfect and doesn't feel even remotely worn, I've decided probably going for an MTE map, which is around the 280 BHP mark and about 420NM torque from what Don tells me, wouldn't have thought that would've put too much extra strain on the clutch, I could see that going over 500NM would probably tax the clutch. Sorry if I've gone off topic but I'm very careful about the kind of mods I do and try not to have knock on effects.

Post 517120 by red_hot_volvo on 2012-06-26 13:31:37

Just thought of the spring inside the valve, I bought the spring kit with my valve, and I know I'll probably need to change it when the remap happens.

Post 517979 by LeeT5 on 2012-06-28 04:04:02

[quote=red_hot_volvo;517118]I've just bought one of these and I'm planning to fit it soon, obviously when I do the job I may be proved wrong, but as I see it, wouldn't it be easier to try and fit it from underneath the car, looks like better access than trying to attack it from the top, except for the top bolt. Also, does anyone know if you need a buy a gasket to fit this? I can see a big 'O' ring on the back of the device and I would presume that is the seal but, I don't want to start on this job to find I need a gasket. Any other complications from fitting this that I should be aware of? Also, I read with concern someone saying that if you remap your car, you may toast the clutch? Is it true?[/quote] You cannot access the CBV from underneath, unless you remove the gearbox. You do not need a new gasket, the 'O' ring is the seal. Read this before attempting this install. It will shed must needed light. Allow a day to do it incase you have problems. I took my time and it took me 4 hours: http://forums.swedespeed.com/showthread.php?137152-ViVA-Performance-S60R-CBV-Upgrade-%28Install%29 [quote=red_hot_volvo;517120]Just thought of the spring inside the valve, I bought the spring kit with my valve, and I know I'll probably need to change it when the remap happens.[/quote] Phone Forge Motorsport, they will send you out a spring kit F.O.C. Comes with extra springs too. Golden rule is if your car is standard fit green spring. If remapped fit yellow spring. If you fit the higher rated spring than the yellow (blue and red i think) then you may experience compressor stall - and that's not good! [quote=p fandango;514031]hmm, been talking to Forge & they said to use this one LINK. Whether its different because its to go on an 850 (did tell them its for a 19t) i don't know[/quote] That is the correct CBV. It's the same one i have fitted. [quote=graemewelch;514024]was it worth fitting then. considering getting one for mine.[/quote] Hell yeah!!! Boost is noticeably stronger and doesn't bleed off like mine used to. Plus, because it's mechanical, there's no rubber diaphram to split!

Post 517993 by graemewelch on 2012-06-28 08:00:24

Hell yeah!!! Boost is noticeably stronger and doesn't bleed off like mine used to. Plus, because it's mechanical, there's no rubber diaphram to split![/QUOTE] Ill add that to my shopping list.

Post 519709 by red_hot_volvo on 2012-07-02 16:44:16

I've now installed my new Forge CBV, and I agree totally that the car pulls better, it sounds just like the stock diaphragm one so if you're looking for the 'tshhhh' get an atmospheric one, that's all except readers who have ME7 of course! It took me 3 hours Sunday afternoon to do mine, the stock one was off in 15 mins but a good chunk of that time was through farting around with those stupid allen bolts that come supplied, they fit, but try getting an allen key on them, it's impossible I reckon unless you take off the turbo, so it is currently fitted with 2 of the 3 original bolts which will do for now, I have Stainless hex head bolts coming which are the same length and thread as the allen bolts so hopefully that will do OK, the originals are fine and do thread up, just a bit on the short side, the base is a bit thicker on the forge vs the original. One other thing to watch and it is obvious but something that could be forgotten about, the base of the Forge one is cut out to match the outlet on the turbo, so it has to be orientated correctly or you will get compressor stall. I've fitted mine for now with the stock weight spring, but as I said, I've got the spring kit so I'll need to go through that performance over again whenever I get my remap. I discovered you can get at it from below, gives better access to the inner top and lowermost bolts (on my C70 at least), but you'll get frustrated and annoyed by the water rail and hose which is in very close proximity to the lowermost bolt of the device, I found it impossible to even screw in the allen bolt here. I had an incident though, and I think (hope) it was my own fault, the boost hose at the turbo outlet popped off when I lifted off, I think I must've neglected to tighten the hose clip properly which was a stupid thing to do but I don't think there's any harm done.

Post 520213 by LeeT5 on 2012-07-03 18:36:43

[quote=red_hot_volvo;519709]I've now installed my new Forge CBV, and I agree totally that the car pulls better, it sounds just like the stock diaphragm one so if you're looking for the 'tshhhh' get an atmospheric one, that's all except readers who have ME7 of course! It took me 3 hours Sunday afternoon to do mine, the stock one was off in 15 mins but a good chunk of that time was through farting around with those stupid allen bolts that come supplied, they fit, but try getting an allen key on them, it's impossible I reckon unless you take off the turbo, so it is currently fitted with 2 of the 3 original bolts which will do for now, I have Stainless hex head bolts coming which are the same length and thread as the allen bolts so hopefully that will do OK, the originals are fine and do thread up, just a bit on the short side, the base is a bit thicker on the forge vs the original. One other thing to watch and it is obvious but something that could be forgotten about, the base of the Forge one is cut out to match the outlet on the turbo, so it has to be orientated correctly or you will get compressor stall. I've fitted mine for now with the stock weight spring, but as I said, I've got the spring kit so I'll need to go through that performance over again whenever I get my remap. I discovered you can get at it from below, gives better access to the inner top and lowermost bolts (on my C70 at least), but you'll get frustrated and annoyed by the water rail and hose which is in very close proximity to the lowermost bolt of the device, I found it impossible to even screw in the allen bolt here. I had an incident though, and I think (hope) it was my own fault, the boost hose at the turbo outlet popped off when I lifted off, I think I must've neglected to tighten the hose clip properly which was a stupid thing to do but I don't think there's any harm done.[/quote] Access on a C70 is obviously different. I am certain access is impossible from underneath on a V70R/S60R due to Angle gear etc being in the way. I have reasearched this for hours on V70R.com.

Post 520214 by sizzlechest on 2012-07-03 18:45:15

I am certain access is impossible from underneath on a V70R/S60R due to Angle gear etc being in the way. I have reasearched this for hours on V70R.com.
Correct. When I pulled the angle gear I looked at up the CBV - you have a vague view of it. Not possible to do from underneath even with angle gear out.

Post 521227 by red_hot_volvo on 2012-07-06 14:26:05

I've been using the car all week and I can honestly say that the forge valve allows the car to run smoother, and it seems to spool up a bit quicker as well, overall I'm quite pleased with it, just need to see how it copes with a remap now which will involve having to take it off again :frown: to change the spring for the uprated one.