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New engine build, new VEMS maps.

Posted: Thu Apr 09, 2015 11:24 am
by scargo
I currently run a 99% stock set-up:
-VEMS
-E-85
-LS-2 ignition coils
-Siemens 850cc injectors
-1.8 bar waste-gate spring with stock turbo

I am in the process of building another engine with:
-10:1 CR pistons
-Pauter rods
-7a cams
-+0.5mm intake & exhaust vavles
-High rate valve springs
-un-shrouding valves, and match head to bores (pistons will sit proud of the deck. combustion chamber work done by Jeff at four ring performance).
-Volvo K24-7400 turbo

I was looking for advice primarily about my ignition timing map. I use a base map I got from Ed for a 100% stock AAN, then blindly added some (i think it was 4* across the board, but IDK) ignition timing to it when I went to E-85. Now, with a different turbo, cams, and higher compression ratio IDK what to change and where to change it. Any thoughts on either ignition or fueling maps, or any good base ignition maps?

Thanks in advance