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Largest Primary Injectors

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Old 05-30-2003, 10:42 AM
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yeah my car is slow. atleast i can launch my car
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Old 05-30-2003, 12:04 PM
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Originally Posted by Silver Ninety Three' date='May 30 2003, 07:38 AM
You shouldn't be running out of fuel that fast. How much boost are you running?
20psi+
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Old 05-30-2003, 12:13 PM
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fuel was ok to about 8000rpm, but beyond that I was hitting 100% duty cycles. AFR's were mid - high 11's.



This thread isn't about why I had to go with larger injectors, it's how to tweak it to run smoothly under soft on-off throttle changes. I have a feeling the accelerator inj values are the key, 7ms with a 1600injector is ALOT of added fuel...



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Old 05-30-2003, 12:17 PM
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yeah the cool thing about 4x1600 is the transition is easy !
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Old 05-30-2003, 12:28 PM
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Originally Posted by vosko' date='May 30 2003, 07:42 AM
yeah my car is slow. atleast i can launch my car
hahah, I COULD learn to launch my car hard/well/fast, but I don't like breaking things as much as you do...



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Old 05-30-2003, 12:53 PM
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no i meant. we finally figured out how make my car not break things when i do burnouts, launching, donuts, drifting. i'm an animal when i drive the car around.....



i have a diff brace coming and subframe braces... the car will be nearly indestructible.... well i haven't been able to break it and you know what that means
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Old 05-30-2003, 01:06 PM
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If you don't break, you are not driving hard enough!
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Old 05-30-2003, 01:32 PM
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saw your post on the datalogit forum and Toddp31 linked me to this post... The power FC won't fire less than 1.5ms and that is why it's so rich at idle with the 1680's..



Your probably going to need to mess with your injector secondary transition (ms) settings... I think around .500 or so will get you in to the ball park..



You also need to change the front primary, rear primary and secondary injector lag diffrences all to .45 ms



Also try changing the injector overlap settings to 14, 14, 8 I think this will help out a lot by making the injector transition happen over a greater time...



If you can let me know what the effects are I'll try to give you some more numbers depending on what the car does..
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Old 05-30-2003, 01:36 PM
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Originally Posted by toddp31' date='May 30 2003, 02:06 PM
If you don't break, you are not driving hard enough!
ummm right. have you seen ANY of my videos and ANY of the chaos i have done to my car
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Old 05-30-2003, 01:39 PM
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Dragon, Thanks for the info. I'll do some adjustments per your advise, log and take notes, then let you know what I haven't been able to tweak out...



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