Losing boost with carb spring in 4th and 5th gear
#1
Losing boost with carb spring in 4th and 5th gear
well i boost around 10psi with a carb spring on the internal wastegate good 1st 2nd and 3rd but 4th and 5th i have boost till around 4k then it just drops, should i try using 2 springs?
#9
Re: Losing boost with carb spring in 4th and 5th gear
Originally Posted by Fang
Could be wrong, but the way I read it he has a plain dumb throttle return spring connected to the flapper instead of a wastegate actuator.
#10
Re: Losing boost with carb spring in 4th and 5th gear
ur looseing boost because of the extact same reasonthat MBC's will boost different psi in different gears. More load onthe engine, more exhaust gas pressure, even though same boost pressure.