sbc horsepower?

dragginwagon · 11-13-2010, 11:31 AM

How much horsepower can I expect from a built for stock 327 275 hp ...I have Carter and Rochester Quadrajets which would be best to use...are crank scrapers legal?

nolongerracing · 11-13-2010, 06:51 PM

Quote:

Originally Posted by dragginwagon

How much horsepower can I expect from a built for stock 327 275 hp ...I have Carter and Rochester Quadrajets which would be best to use...are crank scrapers legal?

380 HP.....Q-Jet......Scrapers are legal.

KingReptile · 11-13-2010, 11:38 PM

Quote:

Originally Posted by dragginwagon

How much horsepower can I expect from a built for stock 327 275 hp ...I have Carter and Rochester Quadrajets which would be best to use...are crank scrapers legal?

Im just guessing here I would say 420 is easily do able even on a soft dyno if you have all your ducks lined up.Thats saying you are making 1.28 per cubi inch i have no calculator

nolongerracing · 11-13-2010, 11:50 PM

Quote:

Originally Posted by KingReptile

Im just guessing here I would say 420 is easily do able even on a soft dyno if you have all your ducks lined up.Thats saying you are making 1.28 per cubi inch i have no calculator

Good thing we don't race dynos......I have 2 customers that make a little over 380 and both qualified very easy at INDY.

KingReptile · 11-13-2010, 11:54 PM

Quote:

Originally Posted by nolongerracing

Good thing we don't race dynos......I have 2 customers that make a little over 380 and both qualified very easy at INDY.

Wow are dyno is 50 horse down from WJ's my 283 makes 350 easy and guarantee i would made Indy ..I thing Wade Owens makes way more than that maybe get your dyno calibrated..

nolongerracing · 11-14-2010, 01:36 PM

Quote:

Originally Posted by KingReptile

Wow are dyno is 50 horse down from WJ's my 283 makes 350 easy and guarantee i would made Indy ..I thing Wade Owens makes way more than that maybe get your dyno calibrated..

I guess WJ needs to get his dyno calibrated too...lol It doesn't really matter what a motor makes on a dyno, its how fast it runs. Always use the same dyno when testing and try to improve on what you have. After all, its the improvements that make you faster.

dyno, racetrack, dyno, racetrack, dyno, etc, etc, ect,.....

dragginwagon · 11-14-2010, 08:01 PM

thanks for yor imput guys...is the Carter Quadrajet of no use as race carb??

james schaechter · 11-14-2010, 08:04 PM

Quote:

Originally Posted by nolongerracing

I guess WJ needs to get his dyno calibrated too...lol It doesn't really matter what a motor makes on a dyno, its how fast it runs. Always use the same dyno when testing and try to improve on what you have. After all, its the improvements that make you faster.

dyno, racetrack, dyno, racetrack, dyno, etc, etc, ect,.....

What he said! LOL!
Until you know what the number means at the track, the number does not tell you much.

Mike Walter · 11-14-2010, 09:43 PM

Quote:

Originally Posted by nolongerracing

I guess WJ needs to get his dyno calibrated too...lol It doesn't really matter what a motor makes on a dyno, its how fast it runs. Always use the same dyno when testing and try to improve on what you have. After all, its the improvements that make you faster.

dyno, racetrack, dyno, racetrack, dyno, etc, etc, ect,.....

The info you stated about using the same dyno is really true, and knowing what YOUR numbers mean on the time slip will always rule the day.

I've built a number of these motors and the one I just finished makes 415 w/ break-in oil. It will be going in a 67 Chevy II so when it's done maybe we can compare sheets & slips?

11-13-2010, 11:31 AM	#1
dragginwagon Junior Member Join Date: Aug 2010 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	sbc horsepower? How much horsepower can I expect from a built for stock 327 275 hp ...I have Carter and Rochester Quadrajets which would be best to use...are crank scrapers legal?

11-14-2010, 08:01 PM	#7
dragginwagon Junior Member Join Date: Aug 2010 Posts: 30 Likes: 0 Liked 0 Times in 0 Posts	Re: sbc horsepower? thanks for yor imput guys...is the Carter Quadrajet of no use as race carb??