565 in g-body
12-04-2013, 05:31 AM
#21
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RACING JUNKIE
Join Date: Jan 2012
Posts: 628
I dunno. I've watched several Caddy CTS-V's run 10.30's at 4800' altitude on a day with bad air . . With nothing more than a tweak and street slicks . . And those Batmobiles came to the track under their own power. No trailer queens there . .
With all due respect, you're starting with a relatively heavy car and are probably optimistic about the output of your bullet . . We run 9 flats with a very healthy 582 in a 2700# Camaro and the math sez it's making about 940 HP.
Of course, again, we're racing at altitude where you have the benefit of heavier air. I can't remember a race (or pass) last year that didn't have a corrected air density of less than 7800' . . .
With all due respect, you're starting with a relatively heavy car and are probably optimistic about the output of your bullet . . We run 9 flats with a very healthy 582 in a 2700# Camaro and the math sez it's making about 940 HP.
Of course, again, we're racing at altitude where you have the benefit of heavier air. I can't remember a race (or pass) last year that didn't have a corrected air density of less than 7800' . . .
12-04-2013, 10:06 PM
#22
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Join Date: Dec 1969
Posts: 17
The car should be about 3500 pounds give or take 50. But if it run a 10 anything on the motor it will be for sale. LOL The hp numbers are what the builder told me and also said I can take it anywhere with good dyno, if I don't believe him and his dyno.
12-04-2013, 10:09 PM
#23
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The car should be about 3500 pounds give or take 50. But if it run a 10 anything on the motor it will be for sale. LOL The hp numbers are what the builder told me and also said I can take it anywhere with good dyno, if I don't believe him and his dyno.
12-06-2013, 05:38 AM
#27
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Join Date: Jan 2012
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I don't have a clue . . A 700R4 is a "Borderline" trans when you're addressing gobs of HP. I have one in my '34 but with a Blown Small Block, However, I don't race it or even "Stress It" . . It's a cruiser . . 2125 @ 80 mph . . Can't beat that!
If you are thinking 700+ Hp and a 4sp O'drive trans, I'd recommend a L80E at the least. They're designed to take the punishment that the LS series dishes out and would probably stay together longer.
But this is all supposition on my part because if you're going to seriously race a 700 Hp car with an automatic trans, and expect both performance and little breakage under Horsepower, you'd best put a good commercial Racing 'Glide in it and live with the two speeds it comes with . .
But there's guys who race in No Box and King Street who run Turbo 350's and Mopar 727's and have good luck with 'em . . Rule of thumb, each shift is worth just about .3 tenths more on your E.T.
I'm kind of Old School Drag Racer, and believe that back when they first booted me into the "Gas Class" at the Drag Strip (1957), the street was no longer my playground . . the Track was!
This is just my opinion though, tempered with some past experience. There are other experts up here that may have other ideas and convictions that may serve you better.
If you are thinking 700+ Hp and a 4sp O'drive trans, I'd recommend a L80E at the least. They're designed to take the punishment that the LS series dishes out and would probably stay together longer.
But this is all supposition on my part because if you're going to seriously race a 700 Hp car with an automatic trans, and expect both performance and little breakage under Horsepower, you'd best put a good commercial Racing 'Glide in it and live with the two speeds it comes with . .
But there's guys who race in No Box and King Street who run Turbo 350's and Mopar 727's and have good luck with 'em . . Rule of thumb, each shift is worth just about .3 tenths more on your E.T.
I'm kind of Old School Drag Racer, and believe that back when they first booted me into the "Gas Class" at the Drag Strip (1957), the street was no longer my playground . . the Track was!
This is just my opinion though, tempered with some past experience. There are other experts up here that may have other ideas and convictions that may serve you better.
12-06-2013, 11:53 AM
#28
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RACING JUNKIE
Join Date: Jan 2006
Location: La.
Posts: 2,890
I agree with RK on this one, i think the 700R4 will be toast after a short time and you'll have spent $2500.00 to have it built.
Jim Hughes build a pretty serious 4L80 trans that will probably stand up to 900 HP, but they are not cheap.
Another alternative is to build a good PG and put ( Gear Venders OD ) on the back of it, they are good to 2,000 HP, and almost all the street cars that run the worlds fastest street cars use them.
I too have been drag racing since 1956, and have run everything from stock to blown alcohol big and sm/blk engines
JMO
Zip.
Jim Hughes build a pretty serious 4L80 trans that will probably stand up to 900 HP, but they are not cheap.
Another alternative is to build a good PG and put ( Gear Venders OD ) on the back of it, they are good to 2,000 HP, and almost all the street cars that run the worlds fastest street cars use them.
I too have been drag racing since 1956, and have run everything from stock to blown alcohol big and sm/blk engines
JMO
Zip.
12-06-2013, 01:42 PM
#29
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Posts: 17
Thanks guys for the info. The car will just be a weekend cruiser that might go to shows and the track on special occasions, but it's main duty will be just cruising and play with my buddies mustangs and camaros. But I do want some times on the motor and spray. I might do a little hustling with it. LOL