MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: clapton712 on March 16, 2014, 04:59:23 pm

Title: Stock boost
Post by: clapton712 on March 16, 2014, 04:59:23 pm

Guys, I know this has been asked millions of times before but I just wanted to check something!

My stock GTI is peaking at 16 PSI and tailing off to around 13.5 PSI. Sounds a bit high from what I have read but I may be wrong? I'm not complaining at all! Car runs very well, 2007 BWA engine with 42k.

Sound about right or higher boost than expected? No codes within the ECU.

Thanks

Title: Re: Stock boost
Post by: betty_swollox on March 16, 2014, 05:10:19 pm

Do you have proof that it is stock?

Title: Re: Stock boost
Post by: clapton712 on March 16, 2014, 05:12:38 pm

We'll no but I guess it could have had a map in the past. Sounds a bit low for a map to me though!

Is there an easy way to check for maps?

Title: Re: Stock boost
Post by: betty_swollox on March 16, 2014, 05:19:49 pm

Rolling road

I asked a garage about this a while ago and they said there was a way to find if the ecu had been written to but can't remember

You could try vagcom? Do some logging

Title: Re: Stock boost
Post by: xjay1337 on March 16, 2014, 05:22:03 pm

Stock psi is peak around 12-13 and hold 8-9 tailing to 6 or 7 at red line

Title: Re: Stock boost
Post by: edition30gaz on March 16, 2014, 05:43:03 pm

Was wondering what the stock boost was, 13psi then?

Title: Re: Stock boost
Post by: v4rley on March 16, 2014, 07:31:38 pm

Maybe of some use:

http://www.mk5golfgti.co.uk/forum/index.php/topic,71962.0.html

Title: Re: Stock boost
Post by: clapton712 on March 18, 2014, 07:33:19 pm

So I did some logs earlier and come back with a peak/spike if 17.4PSI and dropping back to 13.5/14PSI. Does this sound like a possible stage I map that's got some problems? Eg the dreaded Divvy valve??

Thanks

Title: Re: Stock boost
Post by: xjay1337 on March 18, 2014, 08:48:52 pm

Have you checked your DV valve..?

Title: Re: Stock boost
Post by: clapton712 on March 19, 2014, 07:48:26 am

Quote from: xjay1337 on March 18, 2014, 08:48:52 pm

Have you checked your DV valve..?

Nope, just ordered one last night onthe off chance its split so ill change that with my R8 coils when its all here and see what happens!

Title: Re: Stock boost
Post by: clapton712 on March 19, 2014, 01:35:02 pm

Can anyone confrim how loud their turbo spool is on a stock GTI? Can you hear it spool up in the cab and also hear the DV working?

Thanks

Title: Re: Stock boost
Post by: Stevepd on March 19, 2014, 08:55:26 pm

Quote from: clapton712 on March 19, 2014, 01:35:02 pm

Can anyone confrim how loud their turbo spool is on a stock GTI? Can you hear it spool up in the cab and also hear the DV working?

Thanks

Nope, nothing really.

Title: Re: Stock boost
Post by: clapton712 on March 21, 2014, 09:01:44 pm

Does anyone know what pressure the over boost fault comes in at on stock maps?