looking into procharging the 408
03-03-2010, 10:39 AM
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looking into procharging the 408 I've been looking into prochargers and was thinking of a D1sc. Im would like to stay on 93 octane i would go e85 but the nearest place to get any is 3 hr drive away. im running about 11.34 : 1 compression which i was going to change my heads and cam anyway prolly the epp LS Forced Induction Camshaft and some trickflow heads but if my calculation is right i would be around 10.1 to 10.3 : 1 compression with 70 cc heads ... how much boost could i get away with safely... what do you think i could push out etc.......?
03-03-2010, 11:16 AM
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there are lots of variables,but if you get your comp. ratio down to 10 to 1, I dont see you having to much of an issue running around 10lbs. maybe a little more
and of course if you do meth you will be able to get more out of it
im no expert but 10lbs on a 408 should net somewhere between 6-700 rwhp
every setup will be different
an f-series blower would be better on a 408 but it is all about your plans for the car(how much boost,race or street car,etc.)
im sure some of the more experienced guys will chime in soon
and of course if you do meth you will be able to get more out of it
im no expert but 10lbs on a 408 should net somewhere between 6-700 rwhp
every setup will be different
an f-series blower would be better on a 408 but it is all about your plans for the car(how much boost,race or street car,etc.)
im sure some of the more experienced guys will chime in soon
03-03-2010, 10:43 PM
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I think you will be fine 10.0:1 with 93 and spinning that blower to the max(I doubt you will see more than 10-11 psi on that 408).
03-04-2010, 08:14 AM
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yeah 10.1 will be as low as i think i can get it cause i already run i thick gasket .06 .... I really dont now anything on the meth kits trying to find stuff on them. i haven't had my head in the car for awhile been busy and im stationed in korea ... this is a project im trying to plane for when i return home in a few months. do the research so i can just get to work when i get back
03-04-2010, 09:46 AM
#7
With 9.5/1 you can run 16 psi on 93 octane fuel, we have done it quite a few times. If you add methanol injection to it, the inlet air temps will drop 35-40 degrees, and you'll pick up even more power. Bob
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03-04-2010, 09:50 AM
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yeah 10.1 will be as low as i think i can get it cause i already run i thick gasket .06 .... I really dont now anything on the meth kits trying to find stuff on them. i haven't had my head in the car for awhile been busy and im stationed in korea ... this is a project im trying to plane for when i return home in a few months. do the research so i can just get to work when i get back
Take a look at the power we made on this CTS-V with an F-1A at only 12.5 psi of boost. http://www.eppautomotiveperformance....Car.php?car=29
Bob
03-06-2010, 06:13 AM
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03-16-2010, 11:24 AM
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Nice ... but what kinda compression you down to ... cause the being 10.1 to 1 i can get mine to is what has me wondering
would have replied sooner but was in the hospital for a week
would have replied sooner but was in the hospital for a week
03-17-2010, 12:01 AM
#19
I think you will be fine 10.0:1 with 93 and spinning that blower to the max(I doubt you will see more than 10-11 psi on that 408). I am running 9.9:1 on my 347 with 13psi on 93 and Meth
