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Author Topic: Boost loss when quick gear change  (Read 2388 times)

Offline jamie1989

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Re: Boost loss when quick gear change
« Reply #10 on: 26 June 2012, 23:00 »
Sounds like map to me??
Unless its maybe a actuator problem?

When shifting in 2nd the change into 3rd @ 6500revs for example in 3rd gear with your map maybe its at 10-12 psi.

As with my R-Tech remap the peak is around 3000k I believe then holds boost but will drop towards redline,
Does that make sence?

Your wating a second and the revs drop below 3000k for example you floor it, it will peak again upto 20psi?
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1.6-1.8t AGU K03s, Forge actuator, Forge 007p, turbo back exhuast, Ths front mount, Catch can, 5 piece silicone boost pipes and creation sports tip. Stage 2 atm 232bhp 270lbs. Waiting for custom mapping :-)

Offline Dave_IOW

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Re: Boost loss when quick gear change
« Reply #11 on: 26 June 2012, 23:04 »
Mine did this bud and never got to the bottom of it, speedy gear change and would feel absolutely awful, deaccellerate for a second and all was well, i have no idea but can assure you, I also had exactly the same thing and know what your trying to get at!
« Last Edit: 26 June 2012, 23:28 by Dave_IOW »
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Project: Mk2 20vT trackslag
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Offline jamie1989

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Re: Boost loss when quick gear change
« Reply #12 on: 26 June 2012, 23:10 »
Maybe not the remap then as Dave you run a R-Tech map dont you?
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1.6-1.8t AGU K03s, Forge actuator, Forge 007p, turbo back exhuast, Ths front mount, Catch can, 5 piece silicone boost pipes and creation sports tip. Stage 2 atm 232bhp 270lbs. Waiting for custom mapping :-)

Offline Dave_IOW

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Re: Boost loss when quick gear change
« Reply #13 on: 26 June 2012, 23:19 »
Yeah, never got to the bottom of it, engine will be in mk2 and running soon, but should have a new map on by then.

Really have NO idea what caused it though, thought might be either 007 spring or actuator spring not having time to shut, but think that was just clutching at straws..

Sorry can't help bud, but would be interested to know if you fix it..
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Offline Scott D

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Re: Boost loss when quick gear change
« Reply #14 on: 27 June 2012, 01:23 »
I've had this happen on a few occasions  - quick gear change when giving it some then almost feels like gone into limp mode, off the throttle and back on boosts as normal.

Had a duff MAP sensor which eventually completely failed and registered fault codes, replaced and not had a problem since.
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2003 1.8T GTI 180 - APR Stage I, S2000 Filter, R-Tech Supersize TIP, Bilstein B12 Suspension, 18" OZ Superleggera, Recaro Heated Leathers, US Spec Rear Lights, N249/SAI/PCV Delete

1.8T AUQ - 241bhp & 286 ft-lb
R-Tech Map, Forge FMIC, SFS Oversized TIP, Ported Manifold, Milltek Turboback non res exhaust, Forge 007p, N249 & N112 delete, SAI delete, S2000 Air Filter, Sachs clutch & Lightweight Flywheel

Offline Dave_IOW

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Re: Boost loss when quick gear change
« Reply #15 on: 27 June 2012, 07:24 »
Not sure what engine OP has, but I have an AGU so no MAP sensor   :sad:

Exactly same symptoms though  :huh:
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