gimmie an estimation

[kw89425]

i have a nova ladder bar car weighs around 2800 4:88's 31x14 tires. a pump gas 496 eagle rot assembly je pistons dart 320's 284.294 726.714 solid roller strip dominator intake 950 hp holly glide with 5500 stall and break. what might i expect to run 1/8 1/4? thanks

[bjuice]

1/8 - 6.90's to 7.0's




no charts or formulas used here.


let us know what it runs

[ImBack]

my 3000lb.,590 lift oval port 468 ran 6.60's. I say 6.40's

[shawnp]

Aluminum headed 477 on alky 9.90's 1/4 mile.

http://i175.photobucket.com/albums/w129/smpinker/IMG_2025-1.jpg

[kw89425]

i would be very happy if it would go mid 6's but it is pump gas motor

[ImBack]

But its light,has good heads and cam combo.A friend has a 10.5 comp.468 with 781 ovalports unported,714 lift solid cam made 616hp.and 588 lb.tq on gas

[bjuice]

my 3000lb.,590 lift oval port 468 ran 6.60's. I say 6.40's

pump gas motor ? :shock:

[ImBack]

no it was low comp. but i never tried it.You can get good power from a pump gas motor.

[kw89425]

yeah bjuice i cant afford race gas i almost cant afford 92. my ride does pull street duty not alot but some. what ever it runs i can say and mean the wife drove it to get groceries thats not gonna happen but it could..lol

[bjuice]

yeah bjuice i cant afford race gas i almost cant afford 92. my ride does pull street duty not alot but some. what ever it runs i can say and mean the wife drove it to get groceries thats not gonna happen but it could..lol

thats Cool..i wish you luck..

but just to clear somthing up..normally when you hear someone say or use the term pump gas..its understood the motor is Low compression.

let us know what you run...if you run mid 6's and drive this on the street ..then you have some good stuff going on...

and i hope you do.


Brian :D

[OneBadGMC]

i have a nova ladder bar car weighs around 2800 4:88's 31x14 tires. a pump gas 496 eagle rot assembly je pistons dart 320's 284.294 726.714 solid roller strip dominator intake 950 hp holly glide with 5500 stall and break. what might i expect to run 1/8 1/4? thanks

That's an awful big cam for a low compression pump gas motor.

[kw89425]

i dont see mid 6's but i would take it..lol final compression is 10:25 to 10:5. think the cam will hurt me?

[RonOwensRacing]

Ya i could see 6.50's out of that .
My old nova with a 383 and a glide ran 6.70 in the 1/8 mile .
not a pump gas engine but still a little 383 iron heads and a victor Jr and a 630 shaft in it with a 750 on it.

i think it will run mid 6's with no problem.
he does have a set of short runner heads and not a bad combo ya it will.

[Tod74]

i dont see mid 6's but i would take it..lol final compression is 10:25 to 10:5. think the cam will hurt me?

yes.

jmo

[sp2816]

Years ago, I ran a .030 over 454 with a cast crank in my 2700lb Monte Carlo with the cast iron heads. It had the 11:1 TRW closed chamber pistons and the 840 rectangular port heads, but by the time I had smoothed the domes and unshrouded the valves the compression was actually only 10.5:1. I did run the race fuel and never tried pump gas, but looks like I could have. I ran a Crane solid roller with .708"/.708" lift and the duration was about 262/272 on a 106 c/l. I did run a Weiand tunnel ram with 2-750dp and it ran a best of 9.53 @ 143, which was about 6.10 @ 115 in the 1/8th. I shifted it at 7000 and ran it for 2 seasons without problems, until the camshaft dowel pin broke and fell into the Cloyes double roller. Ouch!

I agree that your camshaft is too big for your combination and a smaller one would probably make it run stronger. Also, your 950 carburetor is too small (they actually only flow about 790cfm, because it is a 750 throttle body on a 850 baseplate) and I would change it to at least a 850 and a 1000cfm would be better.

I also think that you will be in the mid 6's, when you get the bugs worked out.

Bill Mitchell

[kw89425]

ok what if i change the springs and run my hyd. roller its a 300 306 620's 630's i cant remember exactly i was running it when i had the cast heads on it

[olds48]

My setup was 496 11:1 comp Canfield 315s with mild porting Solid roller 652/652 308 duration 3365 pounds with my fat butt 4.88s 28" tires and a 3800 stall with a TH400. Ran 6.90 at 99 mph in the 1/8 with a pityful 1.70 60 foot.Don't know if sorry short times were from low compression or too low of a stall( I think stall is too low).But pulled one front tire up about 8" and would carry it about 20 feet out.Car had more but never got to test much before season ended.Never cured traction problems 100 %.I would guess mid 6s

[olds48]

Years ago, I ran a .030 over 454 with a cast crank in my 2700lb Monte Carlo with the cast iron heads. It had the 11:1 TRW closed chamber pistons and the 840 rectangular port heads, but by the time I had smoothed the domes and unshrouded the valves the compression was actually only 10.5:1. I did run the race fuel and never tried pump gas, but looks like I could have. I ran a Crane solid roller with .708"/.708" lift and the duration was about 262/272 on a 106 c/l. I did run a Weiand tunnel ram with 2-750dp and it ran a best of 9.53 @ 143, which was about 6.10 @ 115 in the 1/8th. I shifted it at 7000 and ran it for 2 seasons without problems, until the camshaft dowel pin broke and fell into the Cloyes double roller. Ouch!

I agree that your camshaft is too big for your combination and a smaller one would probably make it run stronger. Also, your 950 carburetor is too small (they actually only flow about 790cfm, because it is a 750 throttle body on a 850 baseplate) and I would change it to at least a 850 and a 1000cfm would be better.

I also think that you will be in the mid 6's, when you get the bugs worked out.

Bill Mitchell

Bill Mitchell as in "Bill Mitchell Racing Engines"?

[sp2816]

olds48 wrote:Bill Mitchell as in "Bill Mitchell Racing Engines"?


I do build some engines, but I am not the one from New York that has the Merlins. It is pretty neat seeing your name in print, though.



Bill

[olds48]

:D No doubt :D

[Tod74]

Also, your 950 carburetor is too small (they actually only flow about 790cfm, because it is a 750 throttle body on a 850 baseplate) and I would change it to at least a 850 and a 1000cfm would be better.


Bill Mitchell

I agree a bigger carb would be better...but I had a 13 to 1, .030 over 454 with bone stock 074 heads in a 3050 lb car with a powerglide and it ran 6.50's in the eighth with a 950 hp holley on it with a victor 454 R. Pulled strong to 6800 rpm. It was probably too small but it worked well on my motor.



P.S. Why the hell are they called a 950 if they flow 790? That sorta pisses me off cause that carb wasn't cheap. :evil:

[kw89425]

if my cam is to big what should i use

[ImBack]

GET-ER-DONE! Inquiring minds need to know. Contact a reputable cam company and tell them what you have and want it to do.