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Some chip tuning questions

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Old Mar 16, 2007 | 07:30 AM
  #1  
xjcamaro89's Avatar
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From: Pennsylvania
Car: 1989 Camaro RS
Engine: 350 Holley TBI Personally Tuned
Transmission: 5 Speed
Some chip tuning questions

OK, i had bought all the stuff and started tuning my own chip last spring, and BMmonte helped me out alot, i got the car running good, and go rid of alot of my problems, and this question isnt a real big problem, but i just want to figure it out, before the car warms up to temp, and i start driving it (its a 5 spd) when i get higher in a gear it seems like the car just runs out of engine like when it gets into the 3500-4000 range. Almost like its not getting anymore fuel, but once the car warms up im good, and can run the gears up and down all day long, i feel like i just need to make a fuel adjustment somewhere but im not sure where to do it or how to pin point it. Thanks for your help again guys!
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Old Mar 16, 2007 | 08:13 AM
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From: Dyer, In
Car: 91 Camaro RS
Engine: 355 Vortec
Transmission: 700r4
Axle/Gears: 3.42
In the 8746 try the Open Loop AFR vs Temp (location 0xD38B) and Open Loop AFR vs Load (location 0xD344) to adjust AFR prior to going into closed loop.
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Old Mar 16, 2007 | 09:14 AM
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xjcamaro89's Avatar
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Car: 1989 Camaro RS
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What would i be looking for and what would i be wanting to adjust?
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Old Mar 16, 2007 | 12:50 PM
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xjcamaro89's Avatar
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From: Pennsylvania
Car: 1989 Camaro RS
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Should I raise the AFR on both of those graphs? how much to increase? and i should only raise the AFR in the sections up to the temperature that i know when the problem goes away? Thanks!

Also could i adjust the choke as well? the CHOKE- AFR subtracted vs coolant
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Old Mar 16, 2007 | 02:58 PM
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i believe the choke times out pretty quickly.

on a cold start i can witness with the WB that the A/F changes shortly after car starts. As was stated the OL AF tables vs temp are where to look. my car also is manual. i never adjusted the OL load table however. maybe i should?
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Old Mar 27, 2007 | 10:37 AM
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xjcamaro89's Avatar
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Car: 1989 Camaro RS
Engine: 350 Holley TBI Personally Tuned
Transmission: 5 Speed
Re: Some chip tuning questions

ok, i upped the AFR in the chart listed above and ran the car and it bogged out sooner and worse than it did before, so should i decrease the numbers in the lower temp ranges? which way richens it and which way leans it, and do i have to redo my VE tables after this change also? Thanks!
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