Sr20det

[driftkid39]

Okay just purchased car with stock sr20det installed and fmic kit. The car runs really good. The boost runs to 7lbs throttle rips to 7000. When driving it reaches 7lbs of boost at around 3200 then around 5000 in drops off and has no power next gear and 7lbs till I hit 4800 or so what the hell am I chasing. I thought the car would idle and sputter if I had a leak in the intercooler piping which is not present good boost just drops off TOTALLY. Boost gauge reads 7lb then no power and reads 10 vacuum seems like a big leak but car shows no idle issue. Is this a maf ecu or cas.

[driftkid39]

Possibly wastegate

[ultimateirving]

bad knock sensor, sounds like your timing is being retarded, it still runs but it has 0pull or guts.

[driftkid39]

Dont be had by the intake collapse like I did got new intake with cone and she runs great

[weirdchris555]

10 in.Hg is not right at idle. Should be 18 to 21ish around there. You have a leak somewhere.

EDIT: saw in your other thread you found it. Couldn't understand your english in this thread.


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[driftkid39]

10 in hg when I was at full boost around 5k because i could not get air in motor but slides good in second during test ride and runs 7lb of boost all the way through 4th it is fixed.

[Killa_D]

i think you blew the welds on the intake... just saying...