11.2cr 370ci w/D1sc@10lbs frontmount intercooler
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11.2cr 370ci w/D1sc@10lbs frontmount intercooler
Hey guys i'm just looking for some input on what I should do for fuel and timming on my setup. I have a 370 with the stock crank, Scat H-beam rods, Mahle flat-tops (1cc valve reliefs), Prc 2.5 Ls6 heads, Mls .040 gaskets, Ms4 cam 111.5 lsa, and the Fast 92/92 combo. I know the cr is high but the motor was built for spray, but I had a friend talk me into buying a prochager for it. I had been running 5-6lbs of boost on 93 but the 6 rib was slipping so we just put the 8 rib setup on and i'm running about 10lbs now on 111 race fuel ($5.79 a gal)
My first question is do you think I could run 93 with a meth kit or would that be too risky for the high compression? Or would switching to e85 be a safer thing to do? (I'm trying to get away from the $6 a gallon)
Then what kind of timming do you all think I should be running?
My first question is do you think I could run 93 with a meth kit or would that be too risky for the high compression? Or would switching to e85 be a safer thing to do? (I'm trying to get away from the $6 a gallon)
Then what kind of timming do you all think I should be running?
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If you have access to E85, it is likely the best solution,
As for how much timing you'll be able to run, thats between you, the tuner, and what the car wants. It wont be hard to figure out with a few pulls on the dyno or runs on the street, which will be required anyhow as you'll need a retune of all your fueling tables for the switch to E85. How big are your inejctors?
As for how much timing you'll be able to run, thats between you, the tuner, and what the car wants. It wont be hard to figure out with a few pulls on the dyno or runs on the street, which will be required anyhow as you'll need a retune of all your fueling tables for the switch to E85. How big are your inejctors?
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Right now i'm running stock lines/rails, dual 255's, and 50's. The car made 410hp n/a at the wheels on a mustang dyno at 6400rpm through a slipping Fuddle. I now have a 4l80e and a Pro Yank in the car so thats fixed.
Heres a link to the graph. http://rides.webshots.com/photo/2068...Ml?vhost=rides
Heres a link to the graph. http://rides.webshots.com/photo/2068...Ml?vhost=rides
Last edited by DevonsZ; 03-08-2009 at 12:21 PM.
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Thanks for the info so far guys. I'm trying to keep my heads since I already have them, and was thinking of switching from the .040 gasket to a .080 but i'm not too sure how much that would help.
Any more input?
Any more input?
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Thanks for the meth/water input guys I have talked with some friends about it I just wasn't positive if it would be enough running 93.
I thought Cometic does but im not sure on that, im just thinking I saw some online somewhere.
I thought Cometic does but im not sure on that, im just thinking I saw some online somewhere.
#10
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TEA can CNC your combustion chambers up. They opened my 317 heads up to 79cc. I got flat top pistons with -2 reliefs and GM 6.0 gaskets. My CR is around 8.6:1 and Im running 15psi on 93octane, no meth.
However I think Im going to install another set of 317s to bring the CR up to 10.1 and add some meth on it.
However I think Im going to install another set of 317s to bring the CR up to 10.1 and add some meth on it.
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TEA can CNC your combustion chambers up. They opened my 317 heads up to 79cc. I got flat top pistons with -2 reliefs and GM 6.0 gaskets. My CR is around 8.6:1 and Im running 15psi on 93octane, no meth.
However I think Im going to install another set of 317s to bring the CR up to 10.1 and add some meth on it.
However I think Im going to install another set of 317s to bring the CR up to 10.1 and add some meth on it.
EDIT: I just looked at your sig lol.
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I would have the chambers opened up and run a very slightly thicker head gasket like a GM MLS. Running a thick gasket like a .080 will kill your quench distance. Opening the heads up doesn't help a whole lot with burn, but you can get away with that with a good quench distance.