Difference between these chips

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May 29, 2001 | 10:24 AM

Daz

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Car: 87 Camaro

Engine: Chevy V8

Transmission: auto

Difference between these chips

86 IROC 305 TPI manual trans & 87 IROC 350 TPI auto..the 87's chip is going to the 86

Daz

May 29, 2001 | 03:29 PM

Desert86Roc

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Well, the biggest difference right off the bat is one is for a manual trans, and the other is for automatic. Of course, you can change that.

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Mike Metzler (Desert86Roc)[*] Webmaster: SpeedWorldMotorplex.com[*] Click Here For 86 IROC 305 TPI (406 build in progress) Page

ET's @ 1250 ft[*] 14.28 @ 95.461 mph (uncorrected, NOS, no headers)[*] 15.365 @ 86.785 mph (uncorrected, headers, no NOS)
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May 29, 2001 | 03:59 PM

Grumpy

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From: In reality

Car: An Ol Buick

Engine: Vsick

Transmission: Janis Tranny Yank Converter

Quote:

<font face="Verdana, Arial" size="2">Originally posted by Daz:
86 IROC 305 TPI manual trans & 87 IROC 350 TPI auto..the 87's chip is going to the 86
Daz</font>

There *can* be alot of differences in how the IAC routines are set up. You may like it, might hate it. You'd be alot better off using something closer, the injector constants, and cylinder displacements will be wrong also.
Takes just a tad bit more work, but most guys like the 89 code better.