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Car bogging when I first hit the gas

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Old Feb 17, 2011 | 04:54 PM
  #1  
Kevman's Avatar
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From: Windsor Ontario
Car: 1987 Firebird Formula
Engine: 2004 LQ4
Transmission: T-5 WC
Axle/Gears: 3.42
Car bogging when I first hit the gas

I took my car out for a spin today, it was 50*F out and I just couldn't wait..
I got out on to the rod, touched the gas pedal and it bogged down for about 2 seconds, then it smoothed out, did it again when I turned around in a driveway

Timing is at 6* BTDC
Holley 670
Chevy 350
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Old Feb 18, 2011 | 12:25 AM
  #2  
dimented24x7's Avatar
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From: Moorestown, NJ
Car: 88 Camaro SC
Engine: SFI'd 350
Transmission: TKO 500
Axle/Gears: 9-bolt w/ 3.23's
Re: Car bogging when I first hit the gas

Sounds like the pumpshot. Not sure how much you can do about it. The airgap intake will make the pumpshot a moving target, so the volume and duration tend to change with the ambient air temp.
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Old Feb 18, 2011 | 06:08 AM
  #3  
Kevman's Avatar
Thread Starter
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Joined: Jul 2006
Posts: 1,674
Likes: 3
From: Windsor Ontario
Car: 1987 Firebird Formula
Engine: 2004 LQ4
Transmission: T-5 WC
Axle/Gears: 3.42
Re: Car bogging when I first hit the gas

Originally Posted by dimented24x7
Sounds like the pumpshot. Not sure how much you can do about it. The airgap intake will make the pumpshot a moving target, so the volume and duration tend to change with the ambient air temp.
Guess it doesn't help it's just over freezing out..
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