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New chip needed?

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Old May 6, 2006 | 06:45 PM
  #1  
My1986IROC-Z's Avatar
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From: Eastern Georgia
Car: 1986 Iroc-Z
Engine: 305 TPI (used to be Carb)
Transmission: 700R4
New chip needed?

I have rebuilt my 305 in my 86 IROC-Z. I used a cam a little more beefy than stock. It is a comp cams XE 256H-12 Intake: 212 Exhaust: 218 Duration: .050 and LSA of 112. I have also added headers, and a 3" back exhaust with high flow cats. With these changes do you think I would need a new chip burned? Thanks
Tony
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Old May 6, 2006 | 08:47 PM
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joejoe's Avatar
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From: edge of the map
Car: red one
Engine: on the floor
Transmission: next to engine
Axle/Gears: the ones that turn
I would not think so. Even if you do need one, you will need to data-log what you have, so you have some info for your new chip.
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Old May 6, 2006 | 08:57 PM
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brutalform's Avatar
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Thats a computer friendly cam. If you did not change the injectors, I would say you will be OK. Tuning would be beneficial, but not nessesary, with your mods, IMO.
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