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LT4 hotcammed L98 running NOW!!!!!

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Old Jul 26, 2002 | 03:06 PM
  #1  
GTA91's Avatar
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From: St. Louis, MO
Car: '91 GTA
Engine: 402ci LS2
Transmission: faceplated T56
Axle/Gears: 9" w/ 4.11's
LT4 hotcammed L98 running NOW!!!!!

Fired it up last night. Runs pretty good on the Hypertech St2 chip I had in it. I just set base timing at 8* BTDC and fuel at ~ 45psi and then reset minimum idle. I can't believe how good it runs just like this. All mods are in sig. Can't wait to run it now!
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Old Jul 26, 2002 | 04:08 PM
  #2  
AlexJH's Avatar
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Engine: 5.7L V8
Transmission: 700R4
How much vacuum are you getting at idle?
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Old Jul 28, 2002 | 03:22 PM
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GTA91's Avatar
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From: St. Louis, MO
Car: '91 GTA
Engine: 402ci LS2
Transmission: faceplated T56
Axle/Gears: 9" w/ 4.11's
re:

I'm not sure how much. I haven't checked it yet. It does idle pretty decent though. I may need to drop base timing alittle and then set the idle higher. I'm not sure. Its no where completed yet, but IS very driveable unlike what I was told by many members on here. Now I just have to get the tuning straightened out so its running close to perfect I guess. I'm very impressed so far.
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