Best MLS HG. Tomei, ACL, Greddy, HKS; Why Did my head melt!?!

[dash]

too many wicked performing reliable cars out there tuned via nistune. Nothing to question.

seen a local go thru basically same as the CA18 mentioned.Made strong power for a long time, bolted on slicks/frequented the strip.... then he bent stock connecting rods.Oe rods do have a limit. I believe torque vs load will ultimately find it

How often have we seen 11.7 on stock CA rods ?

[boost_boy]

too many wicked performing reliable cars out there tuned via nistune. Nothing to question.

Nobody's questioning it, either.

How often have we seen 11.7 on stock CA rods ?

It's rare. Nobody seems to be slapping slicks on their CA powered S-cars, so the world may never know. But I do know these stock rods can withstand more than 400hp unless very cool fluids enter a very hot motor thus creating some issues with the different grade of internal metals. Whatever 21FOX21 feels caused his motor or the guy you know feels caused his motor to bend rods, it's what put closure as to why their engines did what they did. My concern is that I don't want the CA community to assume that at or around 400hp and w/some slicks, they are going to need a new engine as it's just not so. But to each his own .

Dee

[dash]

Quote »Nobody seems to be slapping slicks on their CA powered S-cars, so the world may never know. But I do know these stock rods can withstand more than 400hp.... My concern is that I don't want the CA community to assume that at or around 400hp and w/some slicks, they are going to need a new engine as it's just not so.[/quote] sxoc has more powerful running CA examples, and suggest rod change before 400hp.Maybe based on 'their' experience, as they have a lot more track car samples.Could be "playing it safe", different dyno ratings, dunno.

"400hp" can come with varying torque. I'd think that makes a difference. E85 too ?Same way we can look at how a clutch is rated, while it's Tq that breaks parts.

"use" factors heavily into the equationMobne dyno'd 700hp still on CA gearbox, but we'd hardly say this 5spd is '700hp capable'. Bolt on slicks, 2 step, dead hook, picture changes drasticly I'd imagine.

[boost_boy]

sxoc has more powerful running CA examples, and suggest rod change before 400hp.Maybe based on 'their' experience, as they have a lot more track car samples.Could be "playing it safe", different dyno ratings, dunno.

"400hp" can come with varying torque. I'd think that makes a difference. E85 too ?Same way we can look at how a clutch is rated, while it's Tq that breaks parts.

"use" factors heavily into the equationMobne dyno'd 700hp still on CA gearbox, but we'd hardly say this 5spd is '700hp capable'. Bolt on slicks, 2 step, dead hook, picture changes drasticly I'd imagine.

Timing is everything ! If they tune on the edge, the results will be as such and we'll toss the engine's death up to trial and error/R&D. I agree that with slicks, a few other forces come into play, but one must understand too that this drive train is not meant to be launching your car like you're John Force, either. You may get away with "tuning on the edge" for a while, but you will get caught. I have 400+whp running around that's doing it extremely reliably and with A/C and P/S. And I'm not talking about changing programs to reach 400whp; but an everyday setting at 21psi of boost and 93 octane.

My personal 240 w/CA does better 300+whp daily and I don't touch it; but then again, I don't drive it much either. It's actually getting a new manifold made as we speak because that cheap ebay exhaust manifold has it's limits and will fall apart even after modification. So in closing, if your car is not a dedicated track car, it should not be bending rods and even then. The bearing should suffer before the rods starts changing shapes. Just my opinion though..................

Dee