ok guys heres the scoop i just went to take my car for a spin and theres a HUGE difference in acceleration i look at my boost gauge and i was boosting .8 psi and before i ever did anything to the car it could only boost .4 psi what did i do that this happned? the car has 2800 miles on a rebuilt and streetport and full racing beat exhaust. any idea on this?
TwEaK

 

bump cmon guys some help
TwEaK

 

so is that .8 like not even 1psi???

 

vac leak

 

We need a little more info.
Do you mean .4 bar & .8 bar?
HUGE difference - As in more acceleration?

What changes have you made? (boost controller?)

It could be just a blown off hose to the stock boost controller.

 

well the boost problem isnt in a bad way i checked all the lines when i bought the car it boosted .4 bar creeping to .5 and now that i went over the entire car changed lines **** like that i boost .8 bar creep to almost 1.0 bar i just dont want to blow my motor from over boosting ive been enjoying the car greatly with no problems just every now and then blow off vacuum lines from to much boost but ive fixed most of it with tie strap things
any idea?
TwEaK

 

Port your wastegate bitch . If you are creeping that is. I would think you would have already done that however. Also I would change over to S5 turbo if possible, much better at controlling boost creep in stock form, better wastegate design.

--Fritz

 

The problem with boosting that high is your at the extreme limits of the stock fuel system.
I'm sure you have see this many time on the forum.

I too was seduced by the extra power of a free flowing exhaust - then pingety ping ping pop! (wounded engine)

You too can have a J-spec in your sig..