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Re: 1100 HP out of a N/A small block
[Re: BobsProFab]
#912002
01/23/11 10:52 PM
01/23/11 10:52 PM
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Joined: Jan 2003
Posts: 19,385
Las Vegas
Al_Alguire
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 19,385
Las Vegas
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Dont know enough about P7 heads but with P5's I woudl think you could.
"I am not ashamed to confess I am ignorant of what I do not know."
"It's never wrong to do the right thing"
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Re: 1100 HP out of a N/A small block
[Re: 5spdcuda]
#912003
01/23/11 11:12 PM
01/23/11 11:12 PM
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Joined: Apr 2005
Posts: 936
Deland, Florida
biff426
super stock
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super stock
Joined: Apr 2005
Posts: 936
Deland, Florida
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Quote:
I would doubt it. Nascar cup engines are probably as highly developed as any n a two valve pushrod engine. Pro stock engines are probably comparable in terms of development. In any case 355 cid cup engines are generally thought to produce roughly 830-850 hp. At 850 hp a 355 cid engine is producing 2.394 hp per cu in. Since engines of the same basic design generally produce less hp per cube as the size goes up it seems to me that even with multiple carbs and freedom of design in the intake manifold 2.68 hp per cube at 410 cid would be very difficult to achieve.
Remember cup motors have flat tappet cams and small carbs with no valve train or induction restictions a good comp elimn engine builder may get close but it would be as high maintenance as a playboy bunny
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Re: 1100 HP out of a N/A small block
[Re: biff426]
#912004
01/23/11 11:19 PM
01/23/11 11:19 PM
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Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
bigtimeauto
Trophy Winner
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Trophy Winner
Joined: Jun 2007
Posts: 2,646
Plymouth Meeting, PA
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I have a chevy canted valve engine 358cid that make's 975 so i would venture to guess yes its possible. Better buy lots of valve springs!
BB, TT5,Procharged 3300lb Street Car 4.79/154
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Re: 1100 HP out of a N/A small block
[Re: bigtimeauto]
#912006
01/24/11 12:36 AM
01/24/11 12:36 AM
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Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,424
Kalispell Mt.
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Solid roller cam
Sheetmetal tunnel ram
Much higher compression ratio because you can use better fuel
55 more cubes
Drag car can be built to use narrower TQ curve witch can allow you to build a higher peak HP number. Still with all that 300 more hp is a tall order but I think it could be done, and yes you will need lots of valve springs.
Mabey you could mix your own e-85 with 15% 115 octane gasoline and 85% ethanol and that could add a few more HP by bringing in a little more oxygen than is possible with pure gasoline.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: 1100 HP out of a N/A small block
[Re: BobsProFab]
#912012
01/24/11 11:26 AM
01/24/11 11:26 AM
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Joined: Jan 2003
Posts: 3,874
Smyrna, South Carolina
STEFF
master
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master
Joined: Jan 2003
Posts: 3,874
Smyrna, South Carolina
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Quote:
Quote:
Bob,
I dont think you can get enough CSA in a P7 head. I would guess they are optomized for 358 cubes and thin to save weight.
Bobo
BoBo to make that with a cup head already ported would be a tall order
this would take a new casting with the right guy doing the work 
Call Folts (CFE). They'll tell you if it's do-able or not.
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Re: 1100 HP out of a N/A small block
[Re: STEFF]
#912013
01/24/11 11:31 AM
01/24/11 11:31 AM
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Joined: Oct 2004
Posts: 1,752
detroit area
moderncylinder
top fuel
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top fuel
Joined: Oct 2004
Posts: 1,752
detroit area
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patterson built a chevy using the best of the best,, 400 inches,, two dominators,, made a little over 1100
i think you can do it with two carbs,, not one
who will do the heads?
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Re: 1100 HP out of a N/A small block
[Re: BobsProFab]
#912017
01/24/11 01:17 PM
01/24/11 01:17 PM
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Joined: Jan 2003
Posts: 4,101
Shelby Twp. Mi
HardcoreB
master
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master
Joined: Jan 2003
Posts: 4,101
Shelby Twp. Mi
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Quote:
...this would take a new casting...
I'm asking around, around here. Ya never know.  I may be able to get some UGL cam cores too.
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Re: 1100 HP out of a N/A small block
[Re: HardcoreB]
#912018
01/24/11 01:26 PM
01/24/11 01:26 PM
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Joined: Sep 2007
Posts: 2,584
sycamore,ohio
BobsProFab
OP
master
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OP
master
Joined: Sep 2007
Posts: 2,584
sycamore,ohio
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Quote:
Quote:
...this would take a new casting...
I'm asking around, around here. Ya never know. I may be able to get some UGL cam cores too.
cam will be a gun drilled billet peice  and will take 1 inch lift 
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