LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

383 surges like crazy?

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Old Mar 6, 2006 | 06:29 PM
  #16  
T/A Racer's Avatar
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From: Lawrence, KS
Re: 383 surges like crazy?

hey turbo z do you have a data logging cable? Ion thinks im going to have to datalog a run for him to help me out.
anyways with a snap on scanner heres some data
Map (HG) at 1000rpm 10-11
" " slow throttle up to 2500 7.5
" " throttle blimped to 2500 22
Map V 1.5V at 1000rpm
" " .8 @ 2500rpm

IAC values at idle 25-35
o2s at idle seem to fluctuate mainly around 400-600 but vaiying all the way from 160-900
please help me get this figured out.
Old Mar 6, 2006 | 08:31 PM
  #17  
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Re: 383 surges like crazy?

Vacuum looks good at 1000 rpm but I was really looking for a reading at 800 rpm. O2s and IAC look ok. And yes I do have a cable and laptop.

Last edited by turbo_Z; Mar 6, 2006 at 08:35 PM.
Old Mar 6, 2006 | 09:14 PM
  #18  
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From: Lawrence, KS
Re: 383 surges like crazy?

what are your plans for this weekend? i really am out of ideas with this car, and i guess i just need to get it datalogged do you think if came down to manhattan you could help me out with that? thanks again
Old Mar 8, 2006 | 08:51 PM
  #19  
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Re: 383 surges like crazy?

still looking for help with this. the best i could describe the problem while driving around is like a horrible cam surge. maybe if i was running a cam with like 240/250 durration without a tune. anymore suggestions?
Old Mar 8, 2006 | 09:52 PM
  #20  
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Re: 383 surges like crazy?

My surged at idle due to a mass air flow that was bad, but no bucking.
Old Sep 9, 2006 | 01:48 PM
  #21  
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Re: 383 surges like crazy?

Originally Posted by T/A Racer
still looking for help with this. the best i could describe the problem while driving around is like a horrible cam surge. maybe if i was running a cam with like 240/250 durration without a tune. anymore suggestions?
Any update???

Same here. I can't drive at low speeds smoothly. I must press the clutch pedal or must keep the RPM above 2500. Otherwise its like riding a horse.

Thats like your problem?
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