My Car pinged on the first dyno pull

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Dec 11, 2003 | 09:16 PM

#16

Wingless Wonder

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Posts: 10,029

From: Sacramento CA

Car Info: 02 Impreza WRX sedan

Before you head over to ATP, make certain that fluid levels are what they should be (coolant, engine oil, etc.).

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Dec 11, 2003 | 10:17 PM

#17

Kevin M

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Posts: 18,369

From: Reno, NV

Car Info: 1993/2000/2001 GF4 mostly red

Quote:

Originally posted by WindingRoad
make sure you reset your ecu before the next time you go to the dyno. import tuner did a dyno run on a supra and got 11 extra horsepower from just resetting the ecu. folks at AEM say that when your car pings, the ecu records it and wouldnt perform as well because it delays the timing and keeps it that way.
try running some octane boosters.

Don't reset the ECU unless you really needed to. Subarus have adaptive ECUs which gradually gain horsepower as the ECU pushes the limits over time. Resetting your ECU is sort of like sending it back to 7th grade just before high school graduation. For evidence, check out the first or second installment of SCC's project WRX. The car was stock (or very near it) and lost 10 horsepower at the wheels after the ECU reset.

Dec 11, 2003 | 10:38 PM

#18

raazin

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From: blaine,WA

Car Info: 2002 wrx wagon black

good luck

Dec 11, 2003 | 10:47 PM

#19

Krinkov

Yeah, You've Probably Never Heard Of Me.

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Joined: Sep 2003

Posts: 17,962

From: in a glass case of emotion.

Car Info: 345/30/19s

BTW heres the STi dyno from Vishnus site, My STi did the exact thing A/F on ATPs dyno, dumps right between 2700-3200 right off the chart. First thought was it was pinging and dumping fuel but Dan Godspeed says our ECU wont add fuel when it pings(unlike the EVO) just pull timing. Does your go rich that quick?

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My Car pinged on the first dyno pull-vishnu.jpg

Dec 11, 2003 | 11:09 PM

#20

Kevin M

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From: Reno, NV

Car Info: 1993/2000/2001 GF4 mostly red

That's typical A/F for an STi. It doesn't add fuel to quell knock, basically because it won't help. It runs super rich from the factory.

Dec 11, 2003 | 11:15 PM

#21

joltdudeuc

Old School

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Posts: 14,983

From: Union City

Car Info: '99 RBP GM6

CAI dont' do much more than make your tuning more difficult later on down the line, and make it so you can hear the turbo and BOV better...

Keep the stock box, and get a nice filter...

-Gagan