Stinger thread....
- Thread starter rakkasan
- Start date
bigaaron;1155685 said:
Hope so, I'll work it in this weekend.....
BTW Aaron, I need to get in touch with you, when is a good time?
Bigzavs;1157026 said:
I got 14-15mpg on my last tank, barely any boosting. AFR's at cruise are decent enough but I can't seem to get decel fuel cut to where it is supposed to be, and it just isn't running smooth enough to where I feel the car is being efficient.
suprahero;1157033 said:
Off... I tried several spots between -12.0 and -13, and there was no good point, it would either not cut fuel under decel, or it would cut fuel and not catch itself at idle and the car would die when I put the clutch in. My tuner and I needed to drive to the shop and get some dyno time so we just turned it off and made the drive, I have never turned it back on because all it was doing was stalling my car
The decel fuel cut is very easy to set. You read what it is when you decel, and set it just barely under that. Send me your map so I can check it out. There is definitely a noticeable difference between idle vacuum and the vacuum reached when you are using the engine to decel. I have seen so many people just completely ignore the outer edges of the map, then wonder why it runs poorly unless they are on the throttle. If it wants to stall when you push in the clutch, it's probably because the point on the map it hits after you push in the clutch is too rich or lean, or the timing is too low at that spot. Remember, ANY standalone is only going to drive as well as it's tuned. If it's too rich at cruising speed your gas mileage is going to suck. I'm getting great gas mileage and wonderful driveability with mine, if I took you for a ride in my car you would think I have a stock ecu in it. You have to street tune it and work out the parts of the map you can't easily get to on the dyno. I do have some tips on tuning it that will help, I need to make a few more videos.
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Word of caution on decel cut from my own experience if you're using a thin ring set in your engine do NOT set it so it cuts ALL fuel, aim for around lambda 1.25.
The reason for this is I was cutting all fuel and managed to flutter the rings badly enough to go through 1Qt of oil in 370 miles in an engine that hadn't used a drop of Oil in 11 hours of dyno time
The reason for this is I was cutting all fuel and managed to flutter the rings badly enough to go through 1Qt of oil in 370 miles in an engine that hadn't used a drop of Oil in 11 hours of dyno time
Yes aaron please make some informational videos on the stinger. I just got mine running yesterday. It feels great to have it finally running. I still have a lot of work and a lot of tunning, but 8lbs on a gt4082 is fun.
suprahero;1157484 said:
J: About 17.5:1, it's just to save fuel on decel, but you still need some fuel to keep combustion pressure on the rings so it doesn't suck oil past them if you're using race style rings.
Pulling it back to stoich (14.7) on decel isn't really doing much J
I set up a couple of high vac lines on the fuel table and another in the WB02 Aim table then tweak it by finding a big hill and let it engine brake to set the full vac setting.
I set up a couple of high vac lines on the fuel table and another in the WB02 Aim table then tweak it by finding a big hill and let it engine brake to set the full vac setting.
Before I had it set, it would go really rich under decel or when the clutch was pressed in. I'll try to set it up where it goes a little leaner when I get it running. My car hasn't been cranked in almost a month and that's probably a record for me except when I was doing my 1jz swap.
rakkasan;1158282 said:
Are you still running on stock twins, and stock injectors? If so, can I please get your map? I am sick of my car taking so long to start on cold mornings.
Thanks
quick question about the coolent temperature enrichment. When I change the values I can't get it to save. I write it to the ecu and save it, but when I close it and open it back up all the settings are back to where they were before. Anybody got any idea as to what I'm doing wrong.