DynoSim combinations
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The OP should read this tutorial over as many times as it takes to make good sense of it and understand completely what it says...... | The OP should read this tutorial over as many times as it takes to make good sense of it and understand completely what it says...... | ||
http://www.crankshaftcoalition.com/...tips_and_tricks | http://www.crankshaftcoalition.com/...tips_and_tricks | ||
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| + | *Cheapo, cheap gas 350 street motor.... | ||
| + | *These pistons | ||
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| + | *http://www.summitracing.com/parts/UEM-KB142-030/ | ||
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| + | *This cam | ||
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| + | *http://www.summitracing.com/parts/HRS-CL112011-11/ | ||
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| + | *L31 heads from a boneyard, casting # 12558062 or 10239906. Magnflux 'em for cracks. Fit new STOCK springs and seals. Make certain seals are *fully seated on the guide boss by tapping them with a socket and small hammer. The stock springs will work well with the mild cam and will *not pull the rocker studs out of the heads. Doesn't matter whether the heads have hard inserts in the exhaust or induction hardened seats, *either way will work. Same casting, both styles flow the same. Give 'em a good valve job and otherwise leave 'em alone. Use the rail rockers *that came on the heads stock. | ||
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| + | *Align-hone the main bearing bores in the block and cut the block decks for 9.015" block deck height, referenced off the main bearing bore so *that you know the block deck height is equal on all four corners. This will insure that the heads sit level and flat on the deck and that *the intake manifold will sit square to the heads with no gaps to cause an internal or external vacuum leak. Use GM head gasket #10105117. *Static compression ratio will be 9.1:1 and squish will be 0.042". Use Edelbrock #7116 Performer RPM intake manifold. 600 carb is all you'll *need. | ||
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| + | *Makes 365 hp @ 5000 rpm's with a double torque peak of 420 ft/lbs @3500 and 4000. Should make this power on crummy cat-pea pump gas without *detonation and make a real nice daily driver motor. | ||
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| + | *Cam begins making power at 1200, so it's your call whether or not you need a looser converter. If I did anything at all with this combo, it *would be a mild 2000 stall unit just so I didn't have to contend with the car creeping at stoplights and also to get up into the 1500 rpm *low range of the intake manifold when the light turns green. | ||
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