Just how much timeing can you add with WI?
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Ive went from around 11 at full boost to almost 21 degrees with no knock... but it doesent really seem to be much faster.. of course this is right before I discovered my messed up turbo bearing but is this normal?
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i run 29 or so btdc at 18 psi. Did you adjust your AFR's, are your spark plugs good? WI systems like to run alot leaner than the **** you guys tune on fmic's aim for low to mid 12-1 and you will be better. Is there a turbo leak or is the bearing damage so bad you cant reach full impeller velocity? Thus increasing backpressure and the cfm influx in one fell swoop.
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thanks guys, I was a little afraid to experiment with that much timing, but now I will! I already have it around 12.2 to 1 in boost, so im good there. Still not sure what caused my bearing to fail, but I had a boost leak too... the car is getting a total makeover this week so by next week I should be back on the road with a 3 inch exhaust, rebuilt turbo, depower rack, and proper WI tuning. Cant wait!
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umm i get on the raod and hit it as hard as it will go and then observe how it does if no knock is pressent and it still pulls strong i edge the timming up and do another pull. If knock becomes present etc or i dont make anymore power then i will back of a hair. It is not that frigging hard man you just need someone to drive your car who has the ***** to push the **** down and some raods like mine where you will be left fairly alone.
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umm i get on the raod and hit it as hard as it will go and then observe how it does if no knock is pressent and it still pulls strong i edge the timming up and do another pull. If knock becomes present etc or i dont make anymore power then i will back of a hair. It is not that frigging hard man you just need someone to drive your car who has the ***** to push the **** down and some raods like mine where you will be left fairly alone.
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umm i get on the raod and hit it as hard as it will go and then observe how it does if no knock is pressent and it still pulls strong i edge the timming up and do another pull. If knock becomes present etc or i dont make anymore power then i will back of a hair. It is not that frigging hard man you just need someone to drive your car who has the ***** to push the **** down and some raods like mine where you will be left fairly alone.
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Well heres how I figure it. You cant get the timing map dialed in without a dyno, and that is really true for your timing at cruise. But under power atleast you can usually feel differences.
I also think we are lucky because when advancing timing at the top end, a turbo car will run into knock before you can advance timing too much and loose power. So I feel just advancing your timing until you get knock then backing out a little will give you most power. This is unlike N/A engines, where too much timing is bad.
So when I get some tuning done, ill post my map up!
I also think we are lucky because when advancing timing at the top end, a turbo car will run into knock before you can advance timing too much and loose power. So I feel just advancing your timing until you get knock then backing out a little will give you most power. This is unlike N/A engines, where too much timing is bad.
So when I get some tuning done, ill post my map up!
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