800 HP naturally asperated
08-02-2009, 11:53 AM
#21
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WOW thanks for all the input.
We would be using race gas and probably 13:1 comnpression or better.
We do need to be careful of the valve springs. The car will never see the street but we are building the motor with the hope of running on the salt at Bonneville in a C4 Corvette.
Budget is not all that much but we have the expertize to do the assembly ourselves (I hope).
My main concern was if 800 hp was possible NA. From all the great responces it seems it is.
After this project we might try a supercharged engine for a return to the salt.
Again thanks.
We would be using race gas and probably 13:1 comnpression or better.
We do need to be careful of the valve springs. The car will never see the street but we are building the motor with the hope of running on the salt at Bonneville in a C4 Corvette.
Budget is not all that much but we have the expertize to do the assembly ourselves (I hope).
My main concern was if 800 hp was possible NA. From all the great responces it seems it is.
After this project we might try a supercharged engine for a return to the salt.
Again thanks.
08-02-2009, 03:23 PM
#24
If you open up the heads or get some afr's just any good flowing change the intake, get a 10x lsa and run 26x/27x @ .05 .600 lift you should be there easily. With race gas.
Stock cam is 312/314 advertised and they idle fine. Bigger displacement engines idle alot better especially bigger bores, they can make up for the cam. You could even run on E85 at 13.1 and make 800 and keep it on the street. Not sure where you live but maybe its around.
Stock cam is 312/314 advertised and they idle fine. Bigger displacement engines idle alot better especially bigger bores, they can make up for the cam. You could even run on E85 at 13.1 and make 800 and keep it on the street. Not sure where you live but maybe its around.
08-02-2009, 04:36 PM
#25
http://www.worldcastings.com/product...e-engines.html
Check this out a crate engine with 725hp on pump gas and 825hp on race gas with a solid cam they said it could make more with cnc ported heads!
Check this out a crate engine with 725hp on pump gas and 825hp on race gas with a solid cam they said it could make more with cnc ported heads!
08-02-2009, 05:40 PM
#27
I've seen this video before and have heard his calms of make 750 rwhp but I really cannot believe it. I would love to see a dyno graph or something to help back up the numbers. I've had a Harrop intake on my 427 and it did not make the same power a fast 90 did. Granted, we did not mess around with the intake more then a couple weeks as we were getting ready for a race and took it off but I was greatly disappointed with the results and still have a hard time believe the Harrop's make big power as claimed.
.
08-02-2009, 07:16 PM
#30
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THat engine is built for Nitrousso it's not going to hit big numbers NA. Our first engine was 930 but we tamed it down to make it live.
It's now at 870 NA and is reliable.
Anything is possible with the right parts
Robin
08-02-2009, 11:12 PM
#32
why would you just use 440ci unless you really want to stay with a factory block. A warhawk of a ERL block can go way past that and the bigger cubes will make it easy to make 800. Just think an ERL 500ci motor will ET canted heads and a nice speced cam with 14:1 compression on race gas would go well past 800 at the flywheel.
08-03-2009, 05:07 AM
#33
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I know you want nothing over 440ci but may give you a bit more insight as to whats needed.
Might be a bit easier to read via this link
http://s297.photobucket.com/albums/mm209/dvshk/
Might be a bit easier to read via this link
http://s297.photobucket.com/albums/mm209/dvshk/
08-03-2009, 11:17 AM
#34
FormerVendor
Yes we made that kind of RWHP at the school with one forward facing throttle body and LS6 heads at 765 RWHP but on race gas on HPE's dynojet 248C like 5 years ago.
Very easy with the parts he has for sure.
Very easy with the parts he has for sure.
08-09-2009, 07:20 PM
#37
My 441 makes about 750 FWHP-hydraulic roller, 13:1, stock intake blah blah
you put a solid roller, All pro heads, sheetmetal intake even with just 13:1 or 13:5:1 I could see WAYYYY past 750, nearly 850 I'd bet.
I seriously doubt that ERL block is going to hold together at 14:1cr/ solid roller etc and until they do it with one, I will still believe that.
IF and when it's done, I'll be the first to give the
UP!
you put a solid roller, All pro heads, sheetmetal intake even with just 13:1 or 13:5:1 I could see WAYYYY past 750, nearly 850 I'd bet.
I seriously doubt that ERL block is going to hold together at 14:1cr/ solid roller etc and until they do it with one, I will still believe that.
IF and when it's done, I'll be the first to give the
UP! 