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Tuning a B2134

posted by  West Coast 544 on  Tue May 22 23:36 CST 2012
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last visit: Sat Jul 21 11:32 CST 2012
[RELATED]

Right around the time the motor mounts beneath the B18 had disintegrated from years of petrol abuse (thank you felt main seals), the "project" returned from the machine shop. "Just a few more hours and I'll be burning rubber," I thought. Ha ha. Two weeks later...

So now my 544 has a B2134 (B20 with stock 80mm stroke and overbored to 92mm), with a reasonably well-ported B20F head, stock valves, Isky VV71 cam, Cometic Big Bore head gasket (.027" crush height), stock B18 distributor with Pertronix electronic ignition upgrade, rebuilt dual 44mm SU's, and uniform compression at 195psi.

And dieseling when I switch off the ignition.

Arrrgh.

I've quadruple-checked the timing (10 degrees BTDC) and mixture.

What am I missing?





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