On my 87k mile stock motor (except valve springs), I've gotten a pretty good baseline tune. I'm running Eric's alky chip at the default setting (23*/21*)with Julios alkycontrol kit. So far I've bumped the boost up to 23psi and it creeps just a tad up to 24psi at WOT. I have no knock and the car runs tip-top. I backed the alky knob to 4 on the dial and at the top of third gear I'm running 11.0-11.1 AFR. On straight 93, the car felt pretty good on the butt dyno in the neighborhood of 11.5-11.7 AFR. I know that AFR's are/should be a little lower when running alky as opposed to strictly 93, so what do ya'll suggest I do? Should I start bumping the timing up a degree or two or just add more boost? Do you think I'm stressing things by running more than 25psi on the stock motor? I'm not interested in running on the ragged edge, just want to keep it all together even if that means running things a tad rich to allow some breathing room. I think I'm getting pretty close but just wanting a little input for what I may be missing.
Help me dial her in (tuning suggestions)
- Thread starter 87geeinn
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Are those AFR readings from a WB ?
What do the plugs look like?
What do the plugs look like?
Squeeze
I get the question what is "Safe Boost" all the time.. the answer is none. The more power you extract from an engine the less safe it is. So as you squeeze more timing, more boost.. you are going away from being safe.
Typically for street settings I like that gain knob a bit higher like 6 ro 7. I rather blow in more alcohol than needed.. that will increase the safety net. Just like air fuel, on street setups I target upper 10's.. like 10.7-10.9.
If you really want to see what the car can do, put it on a track and make your adjustments so they reflect increases in MPH and reductions in ET.
HTH
I get the question what is "Safe Boost" all the time.. the answer is none. The more power you extract from an engine the less safe it is. So as you squeeze more timing, more boost.. you are going away from being safe.
Typically for street settings I like that gain knob a bit higher like 6 ro 7. I rather blow in more alcohol than needed.. that will increase the safety net. Just like air fuel, on street setups I target upper 10's.. like 10.7-10.9.
If you really want to see what the car can do, put it on a track and make your adjustments so they reflect increases in MPH and reductions in ET.
HTH
Ok, thanks.
Yes, those are AFRs are from my Innovate WB. Plugs look normal with a little tan hazing to them. No deposits or signs of leaning/detonation.
I'll take that advice and bump the gain knob up a little and keep the boost and timing conservative.
Yes, those are AFRs are from my Innovate WB. Plugs look normal with a little tan hazing to them. No deposits or signs of leaning/detonation.
I'll take that advice and bump the gain knob up a little and keep the boost and timing conservative.
