Capacity Limited Road Race Engine
#21
TECH Resident
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Join Date: Nov 2004
Location: Spring / Sealy, TX
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These two places will tell you how to get it done, you'll have to probably add some room on that budget though.
http://latemodelengines.com/
+1-713-849-4505 talk to Bryan.
http://hkracingengines.com/
+1-832-215-1840 talk to Erik.
HKE is probably cheaper, but takes a lot longer.
While I can always appreciate the idea of saving weight, you have to really look at where it is. Engine block, dry sump and all these things do add weight, but in a weight restricted class, if it is inside the axles, and lower than the top of the tire, that's really not a terrible place to have it. If you have ballast in the car, running a heavy exhaust and block/trans may not be as bad as you think it is because it allows you to keep the weight low and you can take more weight from things up top. If you've got ballast on the car that means you can move some weight around, just something to think about that I don't see people think about sometimes.
http://latemodelengines.com/
+1-713-849-4505 talk to Bryan.
http://hkracingengines.com/
+1-832-215-1840 talk to Erik.
HKE is probably cheaper, but takes a lot longer.
While I can always appreciate the idea of saving weight, you have to really look at where it is. Engine block, dry sump and all these things do add weight, but in a weight restricted class, if it is inside the axles, and lower than the top of the tire, that's really not a terrible place to have it. If you have ballast in the car, running a heavy exhaust and block/trans may not be as bad as you think it is because it allows you to keep the weight low and you can take more weight from things up top. If you've got ballast on the car that means you can move some weight around, just something to think about that I don't see people think about sometimes.
#23
Staging Lane
iTrader: (15)
LS3 Block 4.070 Bore Destroked 3.50 = 364.3 CI
14.0:1 Comp E85 is it possible/practical?
TFS LS3 Head can be ported to ~390CFM@ .600 lift with good
Mid lifts w/ less than 260 CC Intake Ports.
How big are SB2 Ports? can big ports with huge flow (400+ CFM)
be utilized by 366 CI below 8K RPM? Would a bigger torque curve
Perhaps 40-60 lbftBetween 4-7K be worth
trading 30-50 HP @ 7500-8000 RPM?
Is a smaller cam (lift wise) more reliable in a endurance application?
How much tire can you fit and power can you utilize in a 2500lb
Chassis? 650-700 crank might be more easily reached w/ less cost
Leaving more for Dry-Sump.
14.0:1 Comp E85 is it possible/practical?
TFS LS3 Head can be ported to ~390CFM@ .600 lift with good
Mid lifts w/ less than 260 CC Intake Ports.
How big are SB2 Ports? can big ports with huge flow (400+ CFM)
be utilized by 366 CI below 8K RPM? Would a bigger torque curve
Perhaps 40-60 lbftBetween 4-7K be worth
trading 30-50 HP @ 7500-8000 RPM?
Is a smaller cam (lift wise) more reliable in a endurance application?
How much tire can you fit and power can you utilize in a 2500lb
Chassis? 650-700 crank might be more easily reached w/ less cost
Leaving more for Dry-Sump.
I hope you can figure out an LS setup within your budget. The 6.0 K&N cup Spec motors pushed 650 hp with small valve LS2 heads that only flowed 290 cfm on the intake, I just flowed mine off of one of those engines plus their rotating assembly's were all heavier too. With better flowing heads you could probably get close to your goals.
Since I didn't have any deadlines I have way less than half the retail in all new parts by scouring parts classifieds, Ebay and Racing Junk frequently. The block was the only used part and that was half the cost of a new one. Good luck.