Quote:
Originally Posted by KingLT1
replies are in bold.
I love high rpm NA setups..but with the OP limitations, it's not the right direction imo.
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But a bolt on pd blower is?
Clearly I’m addressing engine heat issues he has a lt1, and imo a blower on stock lt1 does not equal a Great once in a while road course car.
I went with regular cam and now all with top drawer everything including valves. that said I think an AFM cam (keep the heads on) can deliver what he is asking for with supporting mods. Which can be added later. Is it the right direction? Dunno obviously I think Pray ported heads and a real cam and kit is the "right way to go".
That said I would say the largest comp cam 224 /236 118 LSA would work with a BTR beehive spring kit
https://www.briantooleyracing.com/bt...pring-kit.html
I'd do LT with cats, rotofab, E85, tune, pray ported IM and TB. I think it would hit about 500 WHP SAE dynojet on his M6. This fullfills all his request. A PD supercharger does not.
Now if he gave a price and said spec a cam, and say no E85 around. stage I for road race say 112 LSA for the broad torque, Pray ported: heads, IM, TB, rotofab, BTR cam kit.
This is because of two reasons:
1) I'm worried about AFM lifter collapse, even with a mild spring, TxSpeed no longer markets theirs and they removed their AFM writeup which basically say only their AFM cam works and everyone elses will fail. Well since they don't market it anymore I would assume even their grind has issues. Ligenfelter does not appear to market their setup either, the still sell the GT30 AFM though.
2) Porting the heads provides cheap and dependable HP, I like cheap and I like dependable, so ported heads are a win / win, Pray knows his stuff.
That said I see nothing wrong with somebody wanting to try a comp cam and for the two smaller grinds stock valve springs may actually work. The bigger grind see my BTR above, bucks down I'd do the number II grind, CA deletes, cut box and green filter and a tune. 6800 fuel cut, get a little more peak HP and a little cam / exhaust sound.
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Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.