R32 GTS-T RB20 Boost issues - Drifting forum

EDnovaStarlet · 24-11-2007, 12:55

Hi guys just got the above and she don't really boost much car idels and drives fine just Very slow compare with my friends.

The dump valve goes off (be it very quite) so it must boosting a bit.

Various peeps have said prob the actuator sicking open/turbo fooked (no somke at all)but just get little water vapour from cold start up for 5mins which I've put down to condensation in the 5" back box & 3" center section.

Has anyone had/ come across this problem before?

Bidding on few turbo's at the mo but if anyone has compleat turbo unit laying around in good nick that they were thinking of junking/selling etc... send it my way as thinking of starting with that first.

narcotic · 24-11-2007, 13:56

have you checked all the boost pipes under the engine bay? that would be the first place i would look

does it have a front mount IC?

arry · 24-11-2007, 15:54

have you checked what the boost gauge is reading?

EDnovaStarlet · 25-11-2007, 15:22

Quote:

Originally Posted by arry

have you checked what the boost gauge is reading?

Going to fit one asap. Standard one says boosting fine upto about 5 out of the +7 on the dash

EDnovaStarlet · 25-11-2007, 15:24

Quote:

Originally Posted by narcotic

have you checked all the boost pipes under the engine bay? that would be the first place i would look

does it have a front mount IC?

Had a little look today but running out of day light after done me two services on mates cars

. Doesn't have a front mount

there is a little pipe with a bolt in it and the one next to it open will try n take a pic of it!

Cheers

guys

EDnovaStarlet · 15-12-2007, 19:13

Oky smoky found few things that shead a little light on things!

Found this car used to have many tuning parts fitted to it before I came to buy it!

* Holes in inner wing where FMIC was fitted
* T piec hose connect to nout which I'm guessing was fitted to a boost gage Now blocked off (given me at least 30% more power now!)
* Still getting the dump valve type noise even though can't locate a dump valve!
* lots o0f muliti plugs not connected hanging down from the drivers side of dash

Guys please see pic's n let me know what they should be going/ connect to (my guess is boost controler, turbo timer etc......that have just been ripped out)

Oh and found all this in the boot side wells & a free amp under sound sound deadening woohoo:

Any idea would be of great help to get my power back thanks!

Mark_McQ · 15-12-2007, 20:24

If the car is boosting properly, might be the clutch slipping.

cromwell · 18-12-2007, 08:51

if its that quiet the dump valve you think you are hearing is probably the standard wastegate mate..

jonocos · 18-12-2007, 20:29

Quote:

Originally Posted by EDnovaStarlet

Oky smoky found few things that shead a little light on things!

Found this car used to have many tuning parts fitted to it before I came to buy it!

* Holes in inner wing where FMIC was fitted
* T piec hose connect to nout which I'm guessing was fitted to a boost gage Now blocked off (given me at least 30% more power now!)
* Still getting the dump valve type noise even though can't locate a dump valve!
* lots o0f muliti plugs not connected hanging down from the drivers side of dash

Guys please see pic's n let me know what they should be going/ connect to (my guess is boost controler, turbo timer etc......that have just been ripped out)

Oh and found all this in the boot side wells & a free amp under sound sound deadening woohoo:

Any idea would be of great help to get my power back thanks!

1st pic: either take out the t-piece or fit a boost gauge on to the line off the t.
3rd pic: Right hand plug looks like turbo timer harness plug going to timer.Left hand plug not sure.
4&5 look like same pipe from different angles-might be carbon canister pipework.(if you still have one,look for black cylinder on right side of radiator)
6th pic: i'm sure there is a small metal pipe that the hose fits just under the larger pipes on top.
8th pic: No Hicas pipework,pump etc?

Your standard dumpvalve is located on the intake plenum pipe, you may have a standard one and a leaking recirc system if its only a small noise.

EDnovaStarlet · 26-12-2007, 17:50

Right taken out t-peice and got better spin up of power now. Rev counter now working (lose conection) but the car will not rev past 4k or go over 145 KPH any ideas?

I have no carbon canister will this be the problem????

or is the car just on it's set restriction? Gotta get that removed if case as golf's, vectra etc.....are all faster than me!

EDnovaStarlet · 29-12-2007, 22:27

Have swaped the Air mass flow with mates that has same car & made no difference.
Not clutch slip
No more boost leaks all corrected
Told to try the coil pack sensor ontop of rocker cover (again swap with mate and see)
Could it be the ECU in limp mode? how would I rest this to standard?

Cheers Peeps

EDnovaStarlet · 29-12-2007, 22:28

Quote:

Originally Posted by Mark_McQ

If the car is boosting properly, might be the clutch slipping.

Nope clutch pulls strong and fine!

EDnovaStarlet · 29-12-2007, 22:30

Quote:

Originally Posted by cromwell

if its that quiet the dump valve you think you are hearing is probably the standard wastegate mate..

Worked out boost is dumping out the air filter

,
(would a old standard waste gate be that noisey?

)

arry · 30-12-2007, 13:46

Quote:

Originally Posted by EDnovaStarlet

Worked out boost is dumping out the air filter

,
(would a old standard waste gate be that noisey?

)

Yes, if it's a cone filter.

EDnovaStarlet · 30-12-2007, 21:25

Quote:

Originally Posted by arry

Yes, if it's a cone filter.

Blitz cone type filter. Hope to take the turbo off

next wk-end and see if waste gate is broken off from actuator as turbo seem to be pulling/spinning up fine! think pinking due to full boost/over boost to soon!

Mark_McQ · 30-12-2007, 23:20

The noise is normal. It's just some air going back out through the intake, getting chopped up by the spinning turbo blades, it's unrelated to the wastegate.
If the actuator arm was somehow disengaged from the wastegate, your turbo would be spinning up to high levels of boost, and your tubby would probably be dead by now.

It's definitely worth getting hold of an aftermarket boost guage, and see exactly how much boost it's putting out. If it's hitting the proper amount, that will let you rule out some stuff .

Bunny · 31-12-2007, 01:42

Alright. It's not normal noise coming out the intake. It's pushing WAY too much boost out the air filter. As said all along mate. I'm pretty certain your actuator arm isn't connected to the Wastegate (flap thing).

Bring it round and i'll take another look.

superclarkey · 31-12-2007, 04:27

Didn't read all of the surgestions so if its all ready been said, i appologise.

If its had a boost controller fitted and then removed, normaly they will just put the boost vacum feed strait to the waste gate actuator, normaly goes through a bleed off valve that the ecu controls.

Which means its making it laggy as hell, and taking ages to come onto boost as the wastegate is creeping open as it comes up on boost slowing it down.

Also if you have blue clocks in your car, its a series one, and they come with extremely small turbos compared to the series two that have the grey clocks! so if your firends is a grey clock R32, thats why its faster.

Hope this helps,

Clarkey.

Bunny · 31-12-2007, 22:55

I'm pretty sure we have the same spec cars apart from i got an ECU e.t.c and running more boost. Ed's is not laggy. It sounds like it's overboosting and popping at around 4k but releasing all the pressure straight out the air filter when letting off. It's not revving coz i think it's overboosting and the ECU is Cutting it off.

superclarkey · 01-01-2008, 19:29

Change the ECU for a stock one, the R32 ecus are very unstable and can cause issues when chipped, that would be the first thing i changed mate.

Clarkey.

24-11-2007, 12:55	#1 (permalink)
EDnovaStarlet RWD Carless Join Date: Nov 2005 Location: Milton Keynes Posts: 513	R32 GTS-T RB20 Boost issues Hi guys just got the above and she don't really boost much car idels and drives fine just Very slow compare with my friends. The dump valve goes off (be it very quite) so it must boosting a bit. Various peeps have said prob the actuator sicking open/turbo fooked (no somke at all)but just get little water vapour from cold start up for 5mins which I've put down to condensation in the 5" back box & 3" center section. Has anyone had/ come across this problem before? Bidding on few turbo's at the mo but if anyone has compleat turbo unit laying around in good nick that they were thinking of junking/selling etc... send it my way as thinking of starting with that first.

15-12-2007, 19:13	#6 (permalink)
EDnovaStarlet RWD Carless Join Date: Nov 2005 Location: Milton Keynes Posts: 513	Oky smoky found few things that shead a little light on things! Found this car used to have many tuning parts fitted to it before I came to buy it! * Holes in inner wing where FMIC was fitted * T piec hose connect to nout which I'm guessing was fitted to a boost gage Now blocked off (given me at least 30% more power now!) * Still getting the dump valve type noise even though can't locate a dump valve! * lots o0f muliti plugs not connected hanging down from the drivers side of dash Guys please see pic's n let me know what they should be going/ connect to (my guess is boost controler, turbo timer etc......that have just been ripped out) Oh and found all this in the boot side wells & a free amp under sound sound deadening woohoo: Any idea would be of great help to get my power back thanks! Last edited by EDnovaStarlet : 15-12-2007 at 19:19.

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24-11-2007, 13:56	#2 (permalink)
narcotic dorifto kingu! Join Date: Jul 2004 Location: North London Posts: 2,227	have you checked all the boost pipes under the engine bay? that would be the first place i would look does it have a front mount IC?

24-11-2007, 15:54	#3 (permalink)
arry dorifto kingu! Join Date: Jul 2005 Location: Essex Posts: 550	have you checked what the boost gauge is reading?

15-12-2007, 20:24	#7 (permalink)
Mark_McQ dorifto kingu! Join Date: May 2007 Location: Scotland Posts: 633	If the car is boosting properly, might be the clutch slipping.

18-12-2007, 08:51	#8 (permalink)
cromwell Yoddle Cleaner Join Date: Nov 2007 Location: High Wycombe, Bucks + Sydney, Australia Posts: 1,090	if its that quiet the dump valve you think you are hearing is probably the standard wastegate mate..

26-12-2007, 17:50	#10 (permalink)
EDnovaStarlet RWD Carless Join Date: Nov 2005 Location: Milton Keynes Posts: 513	Right taken out t-peice and got better spin up of power now. Rev counter now working (lose conection) but the car will not rev past 4k or go over 145 KPH any ideas? I have no carbon canister will this be the problem???? or is the car just on it's set restriction? Gotta get that removed if case as golf's, vectra etc.....are all faster than me!

29-12-2007, 22:27	#11 (permalink)
EDnovaStarlet RWD Carless Join Date: Nov 2005 Location: Milton Keynes Posts: 513	Have swaped the Air mass flow with mates that has same car & made no difference. Not clutch slip No more boost leaks all corrected Told to try the coil pack sensor ontop of rocker cover (again swap with mate and see) Could it be the ECU in limp mode? how would I rest this to standard? Cheers Peeps

30-12-2007, 23:20	#16 (permalink)
Mark_McQ dorifto kingu! Join Date: May 2007 Location: Scotland Posts: 633	The noise is normal. It's just some air going back out through the intake, getting chopped up by the spinning turbo blades, it's unrelated to the wastegate. If the actuator arm was somehow disengaged from the wastegate, your turbo would be spinning up to high levels of boost, and your tubby would probably be dead by now. It's definitely worth getting hold of an aftermarket boost guage, and see exactly how much boost it's putting out. If it's hitting the proper amount, that will let you rule out some stuff .

31-12-2007, 01:42	#17 (permalink)
Bunny Poor Join Date: Feb 2006 Location: In the sky Posts: 2,064	Alright. It's not normal noise coming out the intake. It's pushing WAY too much boost out the air filter. As said all along mate. I'm pretty certain your actuator arm isn't connected to the Wastegate (flap thing). Bring it round and i'll take another look.

31-12-2007, 04:27	#18 (permalink)
superclarkey ______________ Join Date: Aug 2004 Posts: 9,049	Didn't read all of the surgestions so if its all ready been said, i appologise. If its had a boost controller fitted and then removed, normaly they will just put the boost vacum feed strait to the waste gate actuator, normaly goes through a bleed off valve that the ecu controls. Which means its making it laggy as hell, and taking ages to come onto boost as the wastegate is creeping open as it comes up on boost slowing it down. Also if you have blue clocks in your car, its a series one, and they come with extremely small turbos compared to the series two that have the grey clocks! so if your firends is a grey clock R32, thats why its faster. Hope this helps, Clarkey.

31-12-2007, 22:55	#19 (permalink)
Bunny Poor Join Date: Feb 2006 Location: In the sky Posts: 2,064	I'm pretty sure we have the same spec cars apart from i got an ECU e.t.c and running more boost. Ed's is not laggy. It sounds like it's overboosting and popping at around 4k but releasing all the pressure straight out the air filter when letting off. It's not revving coz i think it's overboosting and the ECU is Cutting it off.

01-01-2008, 19:29	#20 (permalink)
superclarkey ______________ Join Date: Aug 2004 Posts: 9,049	Change the ECU for a stock one, the R32 ecus are very unstable and can cause issues when chipped, that would be the first thing i changed mate. Clarkey.