Boost Problem

[Broonie boy]

Guys please help, Ive had a revo stage 1 on my gti since xmas now and never had any bother till today! It doesnt feel like its boosting near the same as it was the day i got it mapped, i drive the car everyday and havent noticed this until today. Also it used to be quite loud when u let of the throttle but again today ive noticed its alot quieter, could this be something todo with a diverter valve or summit? ive read that the o.e ones arent not really fit for a car with a remap?

[Nickyboy]

search for `diverter valve` mate, I was thinking the same as yourself a few days ago.

[Broonie boy]

Ok cheers nicky. i was having a look on awesome gti there. There have an uprated o.e one or you can a forge one. ive mailed them to see what they think anyway. Are you having similar problems?

[Nickyboy]

I have a switchable GIAC flashloader and when in 305bhp mode the power is intermittent, like the car decides when to pull, not me.

Stock mode is better but it still feels a bit moody, so I bought the new revision D diverter valve as I hear the original version has a tendency to split under increased boost.

If it's not that it's the clutch 

[Broonie boy]

funny ya say that, cause today when in 5th gear an it hit 3k revs it shoots upto 4k revs then back down. similar to clutch slip! But only seemed todo it at them revs!! Strange!

[Nickyboy]

Dunno mate, only had mine for 8 days 

[Broonie boy]

Thats it sorted, fitted a rev d - diverter valve yesterday and its better than it was before. 

[Nickyboy]

 

Did you fit it yourself? Any pointers?

[Broonie boy]

yeh fitted myself, wasnt too much hassle, i took the drivers side wheel off gave me a bit more room to get in. The cap screws arent the easiest to get into thou!