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bucking under sudden accelleration

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Old Oct 9, 2007 | 05:51 PM
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Default bucking under sudden accelleration

Hey, i still haven't turbo'd the car but i notice while at slower speeds (more noticeably) if i stab at the gas it bucks furiously than goes. Same if im cruising, and i push down to accel a little.(at higher speeds it shakes a little)
Old Oct 9, 2007 | 05:58 PM
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sounds like a lean spot
datalogs tell all.
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Originally Posted by concealer404
Buy an MSPNP Pro, you'll feel better.
Old Oct 9, 2007 | 06:07 PM
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well i dont have a WB hooked up, will a datalog still show?
Old Oct 9, 2007 | 06:18 PM
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yeah, wb would be helpful, but the nb should be effective enough to fix this.
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Originally Posted by concealer404
Buy an MSPNP Pro, you'll feel better.
Old Oct 9, 2007 | 08:28 PM
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Richen the fuel map a little then maybe try the AE settings being abit more agresvie
Old Oct 9, 2007 | 08:55 PM
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Sounds like AE to me, the map 'may' be fine... it could be way fat, or way lean when you hit it, a datalog will show that, but AE is likely the fix either way. Read the AE section of the MegaManual or MS1 Extra manual for tuning info.
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Old Oct 9, 2007 | 10:48 PM
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okay i'll log once i get the car back and put it up, see what you all think of it.
Old Oct 10, 2007 | 12:59 AM
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for me, this only happens when my cruise map is too lean. I set my cruise to 16:1 above 3k, 15:1 2.2k-3k, and 14:1 between idle and 2.2k. AE seems to help with throttle response for me, but I suppose I dont often "stab" the throttle. I tend to ease into it even when I wanna accellerate quickly.
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