Randy N Connie
Registered User
seawalkersee said:Speaking of 210 CFMs...is that one of the generic formulas that will work for a v-8 car too? Would you expect to see them go up as well maybe towards the 220 CFMs?
Chris
Yes that was a thumb rule I listed.
V-8 could be a little lower 203 cfms.
V-6 a little higher than than 210. but very close.
I listed this number because I don't know if you want
V-8 numbers or V-6 numbers.
You can figuar how many Cfms of flow you need by adding
bore ,stroke, to come up with the amont of CFMs you need
for a certain amount of VE or horsepower you want or need
for your engine. I don't remember how to do it.And I don't
have easy access to my notes & books to look it up.
Here is a picture of a mod that will help in producing flat and wider torque
curve.A manifold that has a larger plenum volume.(raised more plenum volume)
This is what a number of ones on the fastest/RWHP list have used with the ported blowers MPIII,Coy Miller, Jim Demmit, .Chris Wise, use a larger IC PLENUM ,Dave Dalke,used a larger IC plenum with raised manifold.(
big HP with A/R blower.)
I am not on any list but,I use a larger plenum with manifold mods.(the highest stock motor,on gas,RWHP with back-up proof,MPIII.) Dan Sly uses a version
of his own plenum and manifold mod,and he do's very well in the power department,and on the top part of SCCoA's list.
A raised manifold and larger plenum I think would help KEVINs goal along.
Hear is a picture of a raised manifold set-up for M 90 blowers.
On the A/R blower manifolds the plenum bolt base would be lower.
Damon should have one of the best flowing manifold,when he finishes his.
But then he went and layed a radiator in the air path of the blowers air.
But with his water to air cooling.He should be able to come up with the most consistent tune with his ideas.
Thanks Randy
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