Evil F1 SS

What is the max HP and CFM for a twin Screw Blower. I know of KB and whipple. Are there any others? The KB kit is worth 600 plus HP with the 2300 blowzilla. Would that feed a 430 CID stroker LS1? Haas anyone Adapted a 3.0L Screw blower from the whipple Marine unit to 5.3/6.0 ltr truck.

parish8

iTrader: (6)

the whipple guy called my unit a 2.3ax, i have no idea what that means, anyone know how much hp it might support, he did tell me it is the same unit they use on the 4.8 up to the 8.1

parish8

iTrader: (6)

i just used a little of that math they that i learned way back. if the 2.3 refers to liters than the blower i have will flow 1218cfm at it's max recomended rpms(15000)

also the way i figured it a 6.0L engine turning at 6000rpm would use 635cfm at a 100%. i know you will be way over 100%, that is the whole idea of the blower. i have no idea what all these numbers help to figure out but it looks like the blower will pump alot more air than a non blown 6.0 could take on it's own.

another way for me to look at it, i should be around 500hp at 6psi, i could spin the blower up to 11psi, each 1psi is good for around 20hp so add 100hp, figuring that way it looks like 600hp easy for the blower that i have and i bet it is a 2.3L.

is there a formula for cfm-hp?

Evil F1 SS

COULD THE 2.4L BLOWER STILL FEED A 440 CID LS1 W/LQ9 HEADS OR WOULD IT RUN OUT OF CFM? IS THERE A LARGER TWIN SCREW THAT WHIPPLE WILL PLACE ON A GM TRUCK. I KNOW THEY MAKE A 3.0L FOR MARINE USE.

parish8

iTrader: (6)

they use the 2.3L to feed the 8.1(496?) so yea it would feed a 440 but once you put heads and cam on there who knows how much boost you would have.

a 440 would need 760cfm at 100% at 6000rpm, so it looks like it would feed it but i have my doubts, there must be some air that gets past the blower once it is under boost so it may not actualy flow 1200cfm and then how much more air do you need to flow to get 5+psi so that it is worth it?

ill tell you what, how about we take up a colection, i figure 15k would do it and build a motor for me and i will let you know how much boost there is. <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />

Evil F1 SS

A 440CID MOTOR WITH PORTED HEADS WILL NOT FLOW AT 100% AT VERY VERY BEST 805. I WOULD LIKE TO GET 10#S OF BOOST OUT OF A KENNE BELL OR WHIPPLE ON THAT COMBO.

dOnt dRInk aND DRivE
<img border="0" alt="[cheers]" title="" src="graemlins/gr_cheers.gif" /> <img border="0" alt="[chug]" title="" src="graemlins/gr_chug.gif" /> <img border="0" alt="[Camaro]" title="" src="graemlins/camaro.gif" /> <img border="0" alt="[angel]" title="" src="graemlins/gr_angel.gif" />

parish8

iTrader: (6)

well i can say for sure there is no way the whipple i have would flow 10psi on a heads and cam 440, i bet the 3L unit would though. mine would go 10-11psi on my stock 6.0 and that is it.

"A 440CID MOTOR WITH PORTED HEADS WILL NOT FLOW AT 100% AT VERY VERY BEST 805. I WOULD LIKE TO GET 10#S OF BOOST OUT OF A KENNE BELL OR WHIPPLE ON THAT COMBO."

yea but it would flow at alot more than 100% under boost.

Evil F1 SS

What does Whipple say that the blower will support. If the Whipple is 1200cfm than it is stronger than a s trim and a p1sc and they can make 12+ #s of boost

parish8

iTrader: (6)

no they didn't tell me 1200cfm, but they did tell me 15000rpm and 2.3(i am prety sure that is in Liters) if there was no leakage than that would be 1200cfm. i am sure there is some leakage but it is called a positive displacement type blower so i wouldn't think it would be that much.

i don't have any solid info here but no one else is chiming in so i am jsut throwing out some ideas(talking out my ***).

<small>[ November 03, 2002, 09:59 PM: Message edited by: parish8 ]</small>

phantom meneSS

Im building a 2.3 litre Intercooled Autorotor (whipple uses the Autorotor on the "blowzilla")on a 346ci. It will make (ive built a couple before) max boost pressure at 2200rpm. I will be putting 10psi into the studded and slightly lowered compression ratio'ed bottom end. Im using Cometic .078" gaskets.

Im trying to select a camshaft for this combination, i know there has been heaps of posts about FI cams but these blowers are differant to turbo's and Centrificals in there boost delivery and restrictions.

I have heard claims that a PD blower will not make the same max power as a centrifical but to be honest i cant see why, as the power drain is very similar, maybe previous attempts have not been Intercooled and a PD blower will deliver hotter air than a Centrifical? They are very high tollorance and leakage would not be a problem.

The 2.3 litre blower will supply 15 psi to a 382 easy, ive heard of two 2.3's sitting side by side on a Off Shore race boat pumping 20 psi <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" />

I also belive a huge order has been placed by a Viper modifer somewhere in the states, to the order of 100 2.3 units <img border="0" title="" alt="[Eek!]" src="gr_eek2.gif" /> , maybe worth a look out at the lights.

Evil F1 SS

The Viper Kit thatI have seen uses the 3,0L autorotor. I would love to see some one put PD blower on a built motor F-car. It would haul *** as a street car. You could keep a decent street gear in the reaer as well.