Tuning timing at low rpm + boost
Quick rundown on setup...
D16Z6 with D17 crank
Greddy 15g turbo kit, heavily ported elbow + 2.5" downpipe, 3" exhaust
This engine makes significant pressure at low RPM - I've seen 8psi at < 3k.
AFR is all in check. However, the factory timing numbers are very low here, I assume just due to poor VE / low piston speed at these RPMs? Just trying to figure out if I should give it more timing down here.
I'm sure the answer is "advance timing on dyno with a det can".
Probably not a whole lot of people fooling with setups like this, so a bit of a shot in the dark.
D16Z6 with D17 crank
Greddy 15g turbo kit, heavily ported elbow + 2.5" downpipe, 3" exhaust
This engine makes significant pressure at low RPM - I've seen 8psi at < 3k.
AFR is all in check. However, the factory timing numbers are very low here, I assume just due to poor VE / low piston speed at these RPMs? Just trying to figure out if I should give it more timing down here.
I'm sure the answer is "advance timing on dyno with a det can".

Probably not a whole lot of people fooling with setups like this, so a bit of a shot in the dark.
Stock Compression Ratio? forged?
add timing step by step use det can and read your plug
should be a bit hard to do on the street instead of loaded dyno
good luck
add timing step by step use det can and read your plug
should be a bit hard to do on the street instead of loaded dyno
good luck
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Cyphear
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Jun 9, 2007 09:10 AM
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