injector constant help!
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Joined: Nov 2000
Posts: 762
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From: down by the river
injector constant help!
hey guys, the last prom that was burned for my car i think included a 22# injector constant. I am having some idle surging problems but really think its my FPR (long story) Ohh, I am now running 24#ers
Anyway, do you think the wrong constant is contributing to my idle problems?
Anyway, do you think the wrong constant is contributing to my idle problems?
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Joined: Feb 2000
Posts: 1,170
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From: Seattle, Washington
Car: '87 IROC-Z/'82 RX7
Engine: SBC 355/1.1L Rotary
Transmission: T56/5 Speed
Axle/Gears: 4.33/3.93
Maybe, too much fuel can make it start to bog until the IAC motor pulls the rpms back up.
With my 24lbers in a stock 22lb chip, I had a surging idle.
Could have been my cam or the inj. I would start by adding 2-3 degrees timing, and after that try upping the idle speed by like 50.
Just some ideas to start with.
Remember, if you raise your timing at idle, you need to ramp the timing in the table... IE..... used to go 22-24-28-32 etc.... and you make it..... 26-24-28-32....... There is a U shape there, you want it to be somewhat linear. So try 26-28-30-32
With my 24lbers in a stock 22lb chip, I had a surging idle.
Could have been my cam or the inj. I would start by adding 2-3 degrees timing, and after that try upping the idle speed by like 50.
Just some ideas to start with.
Remember, if you raise your timing at idle, you need to ramp the timing in the table... IE..... used to go 22-24-28-32 etc.... and you make it..... 26-24-28-32....... There is a U shape there, you want it to be somewhat linear. So try 26-28-30-32
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