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Is that 33.0936 boost ? Thats Way too much timing . I'd shoot for a ramp from 0-3 from 4000 and make your way up to 5-8 at 5500 then up to 12-14@8000. Smooth timing changes . 1,2,3,4,5,6,7 etc..
AFR should be 11.1-11.5 on most fuels. These are old engines and running a richer mixture typically cools the cylinder.
Its not going to live a good life like that. I'd recommend bringing it to a professional or at least take some time and educate yourself. There is alot of information out there on these cars.
yes 33.09 is boost but the scaling is OFF, I think my boost gauge / very expensive electric boost controller (e-boost2) was reading around 22psi across the board.
It is running 11.5-11.9 AFR, see the wideband readings, first column in the picture above.
Isn't that pretty good or should I add more fuel across the whole map?
I see it now, at 6375 RPMs my timing goes form 15 down to 12 and the knocking goes from 3 to 8. But I thought lowering the timing would reduce the knock not make it worse?
I think you are too lean. What octane are you on? If pump gas I shoot for 11.2 for wot pulls and no leaner than 11.5 for power. The above poster is right you have way too much timing. I'd start over with 0 and add timing incrementally until you start seeing knock. Also you must not have big jumps from cell to cell in the timing map, no more than 3 a count difference from each block if you can. Good luck and don't blow up your motor.
Ok so whats the easiest way to add fuel_ to the whole map? Can I just do this by injector scaling? Also I can't get the scaling right on my boost logging, I've tried a bunch of different stuff, nothing shows me simple -20vacuum to +22psi. This is what everyone seems to be running but it gives me crazy high numbers :
If your fuel trims are good I wouldn't touch the scaling. Simplest way is to make adjustments to the fuel and timing maps and keep logging. Have you read/watched merlins guide to tuning? That was a huge help for me when I was learning. Also are you on a stock rom or tephra?
I just tried Tephra v7 96530706, but I went back to 0014 because a lot of stuff was out of wack on v7.
Just did a lot of logging:
Fuel_ trims is IDLE: +9 to +10.5 (always need more fuel_)
Fuel_ trim CRUISING at 45mph 5th gear: +4 to +6 (always need more fuel_)
so I was thinking about adding more fuel_ by lowering the scaling or should I mess with the injector battery_ latency instead?
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Last edited by supak1111; Jan 19, 2017 at 02:34 PM.
Sooo my question is by lowering my injector scaling from 665 to 609 (which is about 9% more fuel), does that also add 9% more fuel across my whole WOT map?
Jan 18, 2017, 04:42 PM
