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Post by jteu2002 on Mar 2, 2009 0:18:28 GMT -5
got a 408cid sbc with 11.5 cr forged pistons 4340 crank/rods
can i run a blower if i go the E85 road?
i like the the look from the blower sticking out so no turbo or supercharger set up
what size blower ? psi ?
cam?
size carb needed ?
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Post by Heath Daniel on Mar 2, 2009 0:44:12 GMT -5
Welcome to the board jteu2002. What your asking about would work just fine. Nothing beats the look of a polished 6-71 with two fours on top. Without knowing a lot about you combo or what you intend on doing with it it's kind of hard to make suggestions but at 11.5:1 static compression plan on under-driving it no matter what your plans are. A pair of 750s should do the trick along with a blower specific cam (112-114 center line) for the rpms you plan on running.
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Post by jteu2002 on Mar 2, 2009 4:53:38 GMT -5
specs are dart sportman 4.165 bore Scat 4340 crank, Scat Pro Comp 7/16 capscrew 5.7" I beam rods, Wiseco ProTru pistons mahle rings clevite H bearings brodix 200 RR CNC specscrane 114681 cam specssupercomp headers bullet mufflers th 400 4.10 rear 275/60x15 caltracks sfc rollcage sec gen transam use on the street few miles for fun +strip 6 WE a year like to run low 10 s high 9s if possible |
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Post by Heath Daniel on Mar 2, 2009 11:05:13 GMT -5
Man all those spec numbers on your cam make my head hurt. I looked be didn't see a center line # but if it's a blower cam then it should work good. The Wiseco ProTrus aren't my favorite piston either. We had some in a blown gas combo once and they had really shape edges around the valve relieves and we actually burn the edge off one right at one of the little sharp edges. I think the heat built up there and it just couldn't take it. We run sealed power (formerly TRW if I'm not mistaking). They have a lot of meat and the edges aren't as sharp. The ones we've had in the Henry J for the past 4 years on E85 are still working great. I would drive it at least 10% under and run a boost timing retard box. Trust me if you have the right cam the numbers you are looking for should be no problem. We're going to Pinks all out this year at ZMax. We never run the quarter but we crunched the numbers and they say we should be in the mid 8s at 155 to 160 mph with our little 355.
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