JJ's BLACK SS

i just got my dad to buy a 08 hhr ss need to say he had to get the twin of mine. well mine would flat out leave him i drove his car and it only produces 8lbs of boost. has any one else come into this problem?

405HP_Z06

Is his an A4 or M5?

Your signature states you have an A4 with LSD? Are you sure you have an LSD?

JJ's BLACK SS

How Would I Know If It Is An A4 Or M5?

tingle49

A4 auto 4spd trans M5 manual 5spd trans

tomw

Lol.......

Whitewolf

Some people just don't believe in doing there homework before purchasing their car's or trucks.........A lot of dealers have sales people working for them who don't know straight up from side ways about what their selling !!!!!!! Like a politician now days ......they'll tell you anything..... If you going out to plunk down 20 to 50K for a new car or truck.....it pays to do your homework.......If you don't you may go in for a car , and come out with a washing machine........ WW

turbotech

What's the max boost you can get with an A4? Are the programmers I hear about made for the 4T45???

HHR 'Black Death'

I get 10 psi normally with my auto. Once it rolls up to higher speeds it will hit 15 psi. I am guessing this is done to not affect the input side of the auto trans too much. The input shaft of the A4 is weak in comparison to the output shaft, i believe that is why the autos are de-tuned.

I have been really happy with it once it spools up. it just takes a bit longer to spool up. I plan on making a very small adjustment to the waste gate to see if I could just get it to spool up a little faster. This is my commuter car. I really don't beat it much, but I would like to pass a little faster

JJ's BLACK SS

mine is blowing off at 15 psi and my dads is at 10 psi same car

kodos78

Make sure that the car is in 3rd gear when you check how much boost it makes. I know my 5speed limits boost in first and second gear. I'm sure the A4 is similar. And no, you do not have an LSD.