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L98 stock cam question.

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Old Feb 14, 2005 | 06:57 PM
  #1  
forever3's Avatar
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Joined: Jan 2003
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From: East Tennessee
Car: 88 IROC
Engine: 5.7 L98 TPI
Transmission: 700 R4
L98 stock cam question.

I am in the process of rebuilding my stock L98. I am about to order a new factory cam, but I was wondering if the computer would be able to handle the slighly higher horsepower 89 model cam even though I have a stock 88 engine and ECU. I saw on the tech data that the 89 had a slightly higher HP rating and a slightly diffrent grind on the cam. I want to stay pretty much stock. I dont want to get into having to replace the chip or anything, just wanting to keep it simple and bullet proof as a daily driver...good gas mileage and all.

THANKS!!
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Old Feb 14, 2005 | 07:48 PM
  #2  
Rockin-Iroc's Avatar
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Joined: Jan 2002
Posts: 266
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From: Morrison, Colorado
Car: 1986 IROC-Z
Engine: 355 ci TPI, 10:1 cr, Isky cam, ported heads, dual exhaust
Transmission: 700R4, ratchetting shifter, 3.23 rear
Oh sure. No prob.

I'm running an Isky 270 Mega-cam (221/221 @ 0.05" duration) with no problem on the stock computer.
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Old Feb 14, 2005 | 08:02 PM
  #3  
forever3's Avatar
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Joined: Jan 2003
Posts: 120
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From: East Tennessee
Car: 88 IROC
Engine: 5.7 L98 TPI
Transmission: 700 R4
I know there is a big diffrence between this L98 and the 85 cc carbed 305's, but I helped rebuild one, and we ended up having to take off the cc carb, and replaced the dist with a vacum advance type. I REALLY hate to make that mistake again. I am gonna mike the cam and see how much it wore, but I get a feeling it'll end up needing one. Hate to have a FRESH engine and a wore out cam. I just figured if I can getaway with a little more, I might as well give it a little more.
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