boost drop off

[gtir bean]

my car runs about 0.8 bar but when driving hard and past about 6k rpm the boost starts to drop back a bit.is this quite normal?

 

[Little Miss Road Rage]

How much does it drop back?

 

[gtir bean]

from about 0.8-0.9 to about 0.7.

 

[mattygti-r]

hows the boost controlled?

HKS controller etc? or bleed valve?

what guage are you useing to measure the boost? is it accurate?

 

[gtir bean]

its just got a bleed valve on just now and a crapy boost gauge.i just bought an hks one so should get that during the week.

 

[jiw]

I think matty might be able to sort you out with a nice controller

 

[mattygti-r]

:lol:

in all seriousness thou, if the guage is somin like a "tim" guage they go all over the place

sounds like your guage is abit inaccurate esp at 1 bar, bleed valve may also be giving you inaccuate/unstable boost too

 

[gtir bean]

it is a tim gauge but that will be gone soon.