How much timing are you running on pump gas?
#32
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TECH Resident
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From: Tahlequah/Norman, OK
Yea I know it's too rich. We put it on and on like the second pull it threw that graph. Then we tried to lean it out not touching the timing and it fell on its face. IIRC timing was at a steady 10*. I just told him to flash it back over to the rich tune at that point and that we would work on it again in a few months. I can honestly sat that was the last time I have broke over 75% TP so I've never really been into that rich mixture much at all. I have eased into it several times in 2nd and once it spools the truck pulls like a beast at half throttle. I think once we get the chance to up the timing in congruence with leaning it out it should break the 500 mark
#33
Yea I know it's too rich. We put it on and on like the second pull it threw that graph. Then we tried to lean it out not touching the timing and it fell on its face. IIRC timing was at a steady 10*. I just told him to flash it back over to the rich tune at that point and that we would work on it again in a few months. I can honestly sat that was the last time I have broke over 75% TP so I've never really been into that rich mixture much at all. I have eased into it several times in 2nd and once it spools the truck pulls like a beast at half throttle. I think once we get the chance to up the timing in congruence with leaning it out it should break the 500 mark
You should be able to run at least 14-16 degrees on that truck, with 11.5afr's and be very very safe for years to come. With that low AFR you have and timing, I would be worried about the egt's on that thing. Take out some fuel, and add some timing, she will make power.
Assuming they change and calibrate their widebands often enough. (It could be wrong for all anyone knows)
#35
Bump for this thread...lets get the timing/boost/compression discussion going again. OP, ever get this truck back to the tuner to work out that rich problem?
I'm wondering what some of you guys like sureshot and scooter k do to get so much timing into your setups. I just went up to 15psi and even at 9° timing its still showing knock here and there. AFR is mid-10s, meth included.
I'm wondering what some of you guys like sureshot and scooter k do to get so much timing into your setups. I just went up to 15psi and even at 9° timing its still showing knock here and there. AFR is mid-10s, meth included.
#38
Bump for this thread...lets get the timing/boost/compression discussion going again. OP, ever get this truck back to the tuner to work out that rich problem?
I'm wondering what some of you guys like sureshot and scooter k do to get so much timing into your setups. I just went up to 15psi and even at 9° timing its still showing knock here and there. AFR is mid-10s, meth included.
I'm wondering what some of you guys like sureshot and scooter k do to get so much timing into your setups. I just went up to 15psi and even at 9° timing its still showing knock here and there. AFR is mid-10s, meth included.