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Everyone claims that the Jwt ecu runs a little rich. Is there a way to lean it out without the use of a (s-afc) for example? IF I lower the feul pressure will that work or will it not work to lean it out? LMK what you guys think is it a good or a bad idea?
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"I am the representative for the people"
without some sort of wideband to really monitor your air fuel ratios, i wouldnt apptempt it, a safc is going to act as a piggyback on the ecu to adjust the ratios...if you have a piggyback and wideb and i dont think its a BAD idea, however if you dont have awideband to monitor your exact air fuel ratios you obviously could blow up your motor
u cant tune without a wideband..some have tried but its a guessing game.someone i MA has to have a wideband..unless ur willing to take a 3-4hr trip to jersey..pm Fred he will be able to tune ur car at his shop
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Quote:
Originally Posted by paNX2K&SE-R
Keep the a/c if its a daily driver. Chicks don't like swampass
A JWT ECU shouldn't run rich. If your car is running rich, you have other problems. I've ran many many programs from JWT and they were all pretty much on target.
I have a feeling most people run their turbo cars with boost/vaccum leaks by using sh*tty worm clamps with piping w/o bead rolls. Remember, t-bolts and beaded pipes ONLY.
JWT runs rich, been shown many many times, when I say rich I mean 10 or 10.5:1 rich. When I was on the dyno I had to take out 2psi of fuel pressure at the regulator to get a nice 11.8:1 at WOT and better fueling when cruising. Car ran perfect that way.
Brent
__________________ Coach - EEN Member/The Fist Don't F with me!
1993 NX 2000 -- Slate Grey Metallic bitches
1999 SE-L -- Turbo stuff on it
JWT runs rich, been shown many many times, when I say rich I mean 10 or 10.5:1 rich. When I was on the dyno I had to take out 2psi of fuel pressure at the regulator to get a nice 11.8:1 at WOT and better fueling when cruising. Car ran perfect that way.
Brent
That's what I like to hear coach . Anyone else has had good or bad expirience by doing this?.
Mine ran 11.4-11.7, but I guess your results may vary. You can reduce the fuel pressure and the ecu should compensate during light load when it's running closed loop. But I wouldn't try it without a wideband hooked up.
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Khiem
'96 SE-R.... boost, brakes, suspension, etc... sold
'05 Evo
'05 CBR 600RR
JWT runs rich, been shown many many times, when I say rich I mean 10 or 10.5:1 rich. When I was on the dyno I had to take out 2psi of fuel pressure at the regulator to get a nice 11.8:1 at WOT and better fueling when cruising. Car ran perfect that way.
Brent
Agreed, mine was around 11 to off the charts as it went towards redline and never went above 12 . It really killed my hp #'s
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Old set-up: 91 se-r sr20de+T 13.04@110mph w/ a t25....
New set-up: same car, but with a gti-r motor and a gt28r. New LOWER times coming soon!
If N/A just make sure to clean your Air Filter often and have decent spark plugs at all times, then it should run nice A/F ratio...
Still you must understand JWT does not have a magic ball to make a program so exact as to perfectly match what you have in your car. Wideband and dyno is the only way to suit a program exactly to your engine.
12.31 with no brakes
. Anyone else has had good or bad expirience by doing this?.
. It really killed my hp #'s
