stock ecu + lemmiwinks + TCD + MBC + ko4's = ????
11-30-2006, 09:31 PM
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stock ecu + lemmiwinks + TCD + MBC + ko4's = ????
Ok so here we go. Ko4's are going in soon, meaning my wallet is looking thinner than ever, so homebrew is def. looking verrryyy nice (borat). I've been STFA for practically the whole day on and off (learned tons), and from what it looks like, you can lemmiwinks a stock ecu to basically be a stage 2 chip minus speed limiter and redline changes.
So I guess my question is: is it possible to run stock ecu + lemmiwinks + TCD + MBC + ko4's on say 1 bar (14.7psi)?
Here is my thinking. The stock ecu doesn't have such an aggresive timing curve as say a regular stage 2 or 3 chip meaning you can run even more boost, or lemmiwinks the additional timing. Only bad part about that is the injector duty cycle will be pretty high. Ok no biggie, get new injectors and maybe an adjustable FPR, right? Also what size ziener diode should I use for the stock ecu, 2.7v or 2.3v or something even smaller?
If my thinking is totally off lemme know!
Oh and please don't respond with oh call so and so at (fill in apr, awe, abc, xyz) because he will tell you how to give him lots of $$$ for an ecu.
TIA
Omar
So I guess my question is: is it possible to run stock ecu + lemmiwinks + TCD + MBC + ko4's on say 1 bar (14.7psi)?
Here is my thinking. The stock ecu doesn't have such an aggresive timing curve as say a regular stage 2 or 3 chip meaning you can run even more boost, or lemmiwinks the additional timing. Only bad part about that is the injector duty cycle will be pretty high. Ok no biggie, get new injectors and maybe an adjustable FPR, right? Also what size ziener diode should I use for the stock ecu, 2.7v or 2.3v or something even smaller?
If my thinking is totally off lemme know!
Oh and please don't respond with oh call so and so at (fill in apr, awe, abc, xyz) because he will tell you how to give him lots of $$$ for an ecu.
TIA
Omar
11-30-2006, 09:56 PM
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May not be that far off...
Anthony AH10, had mentioned to me in passing that this is something that he thought would work. You would need a custom TCD for say 9PSI of boost, but other than that he didn't see many flaws. Look him up. Give it a shot atleast, it's free, and may just work.
11-30-2006, 10:10 PM
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Re: May not be that far off...
All I need to see is a log of a stock ecu to see what size diode to use. If 14psi is about 2.3v then I'm thinking a 1.8v diode would be good for 8psi if the MAP scales linearly.
Can't wait to try it!
Saving $5k in an off the shelf fueling system is money towards other go fast goodies!
Can't wait to try it!
Saving $5k in an off the shelf fueling system is money towards other go fast goodies!
11-30-2006, 10:16 PM
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If everyone jumped off a bridge...are you kidding me?
Common man, I'm not saying the giac-x isnt good, but why in the heck would you pay a few hundred $$ if you can get the same performance with a few $1 bills?
11-30-2006, 10:28 PM
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There is a huge wealth of knowledge available from this forum for GIAC-X homebrew route you can
draw from. Why is it that you feel you need to run stock ECU? Purely economic? Or something else? There are other options out there as well (e.g stage 3- specific SW) that make this just plug and play. Good luck.
Bruce
Bruce
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11-30-2006, 11:22 PM
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How would a TCD net you higher than asked for boost levels?
I realize that the turbos may overshoot the requested boost and remain there...like in Stage 3- where K04s can go 15-16 psi 'til redline even though the chip is asking for 13 but I don't see how, with stock programming, he can get up to 14 psi when the program is asking for 8-9. I only saw 11psi when I ran stock programming on my K04s.