Boost creep control?
11-17-04, 12:24 AM
#26
Hi....
Join Date: Mar 2004
Location: bay area
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Originally Posted by Outkast
FDeez, I installed a blow off valve to try to control the boost somewhat. I know it is not designed for that, but it was a temporary solution. I was still hitting fuel cut, but less often. Since I refuse to put any restriction in my exhaust, I was waiting to pull my turbos and port the wastegate, when all the sudden the fuel cut disappeared!!! Can anybody tell me what happened? Right now I actually beleive that the ECU "learned" the setup. The car runs perfect, 15 psi with 3" mandrel bent exhaust, no cats, K&N cones and stock ECU. Is the computer capable of "learning" to run better? In the beginning I was hitting fuel cut consistently in the top of second and transition in 3rd (the car is automatic), but as soon as I hit 15,000 original miles, it disappeared. Could there be a protection program in the first 15000 miles? I have never heard of such a thing. I also don't think the stock ECU can "adjust" itself to run 15 psi unrestricted without any knock or fuel cut. But after hitting fuel cut more than 50 times, the car runs smooth and very stong, no more hesitation. I didn't change anything, can anybody tell me what happened???
11-17-04, 09:28 AM
#27
Mr. Goodwrench
Join Date: Oct 2003
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Yes sir, my spark plugs are white as snow.... 
Running octane booster and half throttle are my ridiculous ways of trying to avoid knock. Fuel cut, which is also bad for the motor has been saving my ***. Normally when I race I stay in "S" (2nd gear on AT) and I floor 1st and let off at 6000 rpm allowing it to shift then floor it again carefully..... this is gay I can't wait to port my WG
Running octane booster and half throttle are my ridiculous ways of trying to avoid knock. Fuel cut, which is also bad for the motor has been saving my ***. Normally when I race I stay in "S" (2nd gear on AT) and I floor 1st and let off at 6000 rpm allowing it to shift then floor it again carefully..... this is gay I can't wait to port my WG
Last edited by Outkast; 11-17-04 at 09:32 AM.
01-30-05, 10:31 PM
#29
Originally Posted by LemonR1
Would an EBC control the creep or are you looking for a less expensive way? Someone on here told me it would be eliminated with this.
Originally Posted by the_saint
The ECU alone cannot prevent boost creep. If the boost controller/ecu detects a boost level rising once the wastegate is 100% what else can it do? You need to port the wastegate, or add some restriction to the exhaust (hi flow cat, stock cat, restrictive cat-back, restrictor plates [i have a few]), otherwise you will get creep.
Mike
Mike
