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Old 01-31-2013, 10:31 AM
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454 blower help!

Yes, In all your post you don't say what intake and carburetor you are running. What gear ratio do you have in the rear end?

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Old 01-31-2013, 10:34 AM
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That is going by my speedo, and gps radar
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Old 01-31-2013, 10:38 AM
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Sorry. I am running an Edelbrock performer rpm intake duel plane, and an 850 cfm holly duel feed double pump. I have 373's in the rear possi
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Old 01-31-2013, 10:48 AM
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125 mph and 3400 pounds is 11.0 ish add a tenth for every 100 pounds
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Old 01-31-2013, 10:59 AM
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If you want to supercharge this high compression ratio engine run it on Methanol.
Get two big methanol carbs. Once the fuel system conversion is done you will never go back to gasoline.
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Old 01-31-2013, 11:02 AM
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For max power on street pump gas you want a 7.5:1 compression ratio.
Build a new low compression ratio Short block and get the crank double key way cut.

if you want max supercharged horsepower the methanol is best by far on a roots blower motor.
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Old 01-31-2013, 07:27 PM
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So can anyone tell me if the blower makes your engine run hotter or cooler? Found one for $1,000 with everything. course i'll have to get a new cam and a few small other things. Thanks for your support and help here everyone..
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Old 01-31-2013, 07:45 PM
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more power heat from more power.
methanol will run colder
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Old 01-31-2013, 07:49 PM
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454 blower questions

You mean to tell me you are going to build another engine with 7.5:1 compression just to run a blower? You have an engine with 600 hp now try a Victor Jr. intake for more mid-range and top-end speed. Work on the suspension to get the tires to stick better.
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Old 02-01-2013, 05:45 AM
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intake!

cdminter59,I have a brand new Offenhauser Intake manifold now sitting under my bench, Would that be just as good as a victor jr. intake?
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Old 02-01-2013, 06:03 AM
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Well i want to Thank you all for your help, support, and patience with me on this little adventure of mine here. I guess i don't yet still know what route is the best to go.. The technical support you all have givin me is great and appreciated. We have a nice flat strip out here a couple miles down the road by what our family calls the old Spinney tree. My brother and i went up there yesterday before dark and marked out with paint exactely 1/4 mile strip to get an accurate reading on my speed. And we made 5 runs with it after taking 200lbs of subs and amps out of the back, and our final speed was 138 MPH in the 1/4 mile. Is that pretty good for a street car? I am in serious debate here because i love the blower looks, sound, and power, But like some people have said it is a waist of money to completely tare down a $10,000 motor that is already pushing 600+ hp to bolt on a blower. If i can somehow get 145 mph out of it in the 1/4 i will be happy?
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Old 02-01-2013, 09:27 AM
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How are you taking measurements?
3400 pound car going 145 mph would be making over 800 hp
that makes the car deep into the 10s
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Old 02-01-2013, 09:55 AM
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You say you're at 600 hp, is that from a dyno? At the crank, at the wheels, desktop dyno or seat of the pants? Are your heads GM and what are your cam specs? What trans and converter stall?
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Old 02-01-2013, 10:21 AM
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edelbrock 6055's. Cylinder Head, Performer RPM, Aluminum, Assembled, 118cc Chamber, 315cc Intake Runner,
2.19 intake, 1.880 exhaust, 3 degree valve angle rectangular port, combustion chamber semi open. 0.775 lift. Cam shaft hyd, roller flat tappet, 2,500 6,500 Duration 244/244 lift 550/550 th400 tranny built. Hughes 2,400 stall, 0.240 thousands dome forged pistons. Performer rpm intake duel plane, 850 holly duel feed double pump 373 possi. I just took a heat reading on the exhaust and there is a difference in temp of 10-30 degrees on variable ports??? Is that real bad and what is causing it
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Old 02-01-2013, 10:36 AM
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Sorry never dynoed it, just approximating it from building performance engine over the years.
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