boost problem

mitchamillion · 11th February 2011, 07:13 PM

Hi i hope some one can help my j spec tt isn't boosting on the second turbo properly it starts fine it seams to drive ok to but when you put your foot down im not getting more than about 0.7 bar of boost on the second turbo i have gone round all the pipes and they all are ok as i have taken them all off and check them but still wont boost is there any think Else i should be checking

Martin F · 11th February 2011, 08:21 PM

I assume it was boosting more up until recently?

One thing I would do is check the BOV. Take it off and see if you can blow through it, if so it's broken.

Next thing would be to check the EGCV connection to it's actuator. Do a search on here for EGCV there should be some info about it.

If both of those check out try putting it into TTC mode and see if boost returns to what you had before.

mitchamillion · 13th February 2011, 09:32 AM

Thanks Martin it was the EGCV actuator stuck got it working now and the car goes like it did before i will get a new one.

you mite be able to help me on this now my boost is ok my clutch is slipping
now it's running about 365 bhp can i use a standard clutch or should i get an up rated one? as i have no idea what a standard clutch can take.

Martin F · 13th February 2011, 10:06 AM

Well you could choose a stock clutch, which wouldn't be a bad choice as it's very tried and proven, or you could go for one of the many stock based clutches with uprated pressure plates.

I went for a Centreforce dual friction, which is stock based, and have no issues to report with it. Mind you i've done less than a 1000 miles on it since fitting.

mitchamillion · 13th February 2011, 10:29 AM

Thanks again martin for your help. what sort of price am i looking at for a good clutch and do you have any places you would recommend to buy one from?

Martin F · 13th February 2011, 11:30 AM

You'll be looking between £400 to £600 for a good clutch (just under £400 for a stock clutch). Don't forget you should also replace the flywheel when doing the clutch, which is around another £350, the flywheel bolts and thrust bearing. There are also some other miscellaneous C-clips and washers which are worth changing whilst you have everything apart.

I just had a quick look on Whifbitz and they seem to do Competition Clutches which i've honestly not heard much about (don't go for a paddle clutch). You could also try Chris Wilson as I know he used to supply an uprated stock clutch.

mitchamillion · 13th February 2011, 11:56 AM

Thanks again martin for all your help looks like im going to be busy good job i can get it on a ramp at work to do this

Martin F · 13th February 2011, 05:48 PM

You may find this article useful

http://www.mkiv.com/techarticles/clutch/index.html

It's quite comprehensive.

11th February 2011, 07:13 PM	#1
mitchamillion Junior Member Jap Spec RZ - Manual (TT) Join Date: Apr 2010 Location: royston harts Posts: 17	boost problem Hi i hope some one can help my j spec tt isn't boosting on the second turbo properly it starts fine it seams to drive ok to but when you put your foot down im not getting more than about 0.7 bar of boost on the second turbo i have gone round all the pipes and they all are ok as i have taken them all off and check them but still wont boost is there any think Else i should be checking __________________ J-spec Twin turbo 6speed manual blitz nur spec-R stainless DC active front spoiler blits boost gauge running 1bar uk spec bonnet scoop uk spec glass head lamps TEIN super street suspension

11th February 2011, 08:21 PM	#2
Martin F Administrator UK Spec - Manual Join Date: Aug 2003 Location: Essex, UK Posts: 10,226	I assume it was boosting more up until recently? One thing I would do is check the BOV. Take it off and see if you can blow through it, if so it's broken. Next thing would be to check the EGCV connection to it's actuator. Do a search on here for EGCV there should be some info about it. If both of those check out try putting it into TTC mode and see if boost returns to what you had before. __________________ Martin UK6TT + Bits & Bobs 'Remember folks, the inside lane isn't just for Xmas' MSOC FAQ MSOC Members Discounts MSOC Resources

13th February 2011, 09:32 AM	#3
mitchamillion Junior Member Jap Spec RZ - Manual (TT) Join Date: Apr 2010 Location: royston harts Posts: 17	Thanks Martin it was the EGCV actuator stuck got it working now and the car goes like it did before i will get a new one. you mite be able to help me on this now my boost is ok my clutch is slipping now it's running about 365 bhp can i use a standard clutch or should i get an up rated one? as i have no idea what a standard clutch can take. __________________ J-spec Twin turbo 6speed manual blitz nur spec-R stainless DC active front spoiler blits boost gauge running 1bar uk spec bonnet scoop uk spec glass head lamps TEIN super street suspension

13th February 2011, 10:06 AM	#4
Martin F Administrator UK Spec - Manual Join Date: Aug 2003 Location: Essex, UK Posts: 10,226	Well you could choose a stock clutch, which wouldn't be a bad choice as it's very tried and proven, or you could go for one of the many stock based clutches with uprated pressure plates. I went for a Centreforce dual friction, which is stock based, and have no issues to report with it. Mind you i've done less than a 1000 miles on it since fitting. __________________ Martin UK6TT + Bits & Bobs 'Remember folks, the inside lane isn't just for Xmas' MSOC FAQ MSOC Members Discounts MSOC Resources

13th February 2011, 10:29 AM	#5
mitchamillion Junior Member Jap Spec RZ - Manual (TT) Join Date: Apr 2010 Location: royston harts Posts: 17	Thanks again martin for your help. what sort of price am i looking at for a good clutch and do you have any places you would recommend to buy one from? __________________ J-spec Twin turbo 6speed manual blitz nur spec-R stainless DC active front spoiler blits boost gauge running 1bar uk spec bonnet scoop uk spec glass head lamps TEIN super street suspension

13th February 2011, 11:30 AM	#6
Martin F Administrator UK Spec - Manual Join Date: Aug 2003 Location: Essex, UK Posts: 10,226	You'll be looking between £400 to £600 for a good clutch (just under £400 for a stock clutch). Don't forget you should also replace the flywheel when doing the clutch, which is around another £350, the flywheel bolts and thrust bearing. There are also some other miscellaneous C-clips and washers which are worth changing whilst you have everything apart. I just had a quick look on Whifbitz and they seem to do Competition Clutches which i've honestly not heard much about (don't go for a paddle clutch). You could also try Chris Wilson as I know he used to supply an uprated stock clutch. __________________ Martin UK6TT + Bits & Bobs 'Remember folks, the inside lane isn't just for Xmas' MSOC FAQ MSOC Members Discounts MSOC Resources

13th February 2011, 11:56 AM	#7
mitchamillion Junior Member Jap Spec RZ - Manual (TT) Join Date: Apr 2010 Location: royston harts Posts: 17	Thanks again martin for all your help looks like im going to be busy good job i can get it on a ramp at work to do this __________________ J-spec Twin turbo 6speed manual blitz nur spec-R stainless DC active front spoiler blits boost gauge running 1bar uk spec bonnet scoop uk spec glass head lamps TEIN super street suspension

13th February 2011, 05:48 PM	#8
Martin F Administrator UK Spec - Manual Join Date: Aug 2003 Location: Essex, UK Posts: 10,226	You may find this article useful http://www.mkiv.com/techarticles/clutch/index.html It's quite comprehensive. __________________ Martin UK6TT + Bits & Bobs 'Remember folks, the inside lane isn't just for Xmas' MSOC FAQ MSOC Members Discounts MSOC Resources

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