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Old 05-20-2009, 06:19 AM
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turbo sbc ?'s

Want to go to the next level w/ my el camino. full roller 385 600 lift and 587 exhaust 248/258 @050. dart pro 1 200 heads. flat tops, forged rods and crank. Really want to boost this thing. either a procharger, weind or turbo. It has 10.7:1 compression and it will never be a street car. I would not mind running 118 octane either. Can it be done safely? what boost psi can I or should I run?

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Old 05-20-2009, 06:52 AM
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Well thats a good idea but unless the bottom end is strong that compression is alittle high for a turbo. Now im not sure thats just my guess.
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Old 05-20-2009, 07:26 AM
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a little out of my experience range, but 118 octane makes boost on a high compression engine possible.

not a good turbo cam, but a pro-charger should work.

your engine should easily run on 93 or 91 octane now, so I feel a moderate amount of boost will be tolerated with 118 octane. Say, 7 or 8 psi which should add 50% more power. so if your engine is making 475hp/450 ftlbs now then it would make 710hp/675ftlbs with 8 psi of boost.
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Old 05-20-2009, 11:05 AM
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Dont you have E85 in the states?A EFI and 2 big turbos our 1 BIG turbo shuld work fine whith that compression.The hardest thing probobly is making the tiers hook up and/our the transmision survive
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