Based on experance what would you think a 68 camaro 4 speed with 4.11 gears 468 ci.
9.8 to 1 compression street/strip cam victor strip dominator with a 850 holley. square port gm heads. would run in the quarter based on it hooking good. Thanks Just looking for a realistic time.

I'll guess around 11.5, depending on heads and cam.

I would say low to mid 12s. That is alot of waight to get moven. The setup I had was not that for from yours. Your motor should make around 500hp at the motor. But not knowing the heads you have, its just my 2cents.

Just looking for a realistic time.



Need specs if you want realistic...

street/strip cam could mean anything
headers?
ignition?
engine build?
juice?
tires?
posi, spool, etc?
heads worked?

The CR/cam/intake seems to be a mismatch to me without cam and build specs

Based on the information you have provided ,12.70's give or take 0.20 ...good luck Happy Motoring

Based on the information you have provided ,12.70's give or take 0.20 ...good luck Happy Motoring


What he said...

You guys think 12.70's? Wow... I went 12.20's with a ZZ4 crate motor...

Jim

Based on the information you have provided ,12.70's give or take 0.20 ...good luck Happy Motoring


I was thinking more like 13.30's. I'm sure it may have the ability to run much faster but most 4 speed BB cars I've owned never ran close to their real potential. Alot of times when you do get traction they tend to bog/fall on their face. To many variables to slow you down with that 4 speed.


JMO of course........




bob

Im gonna have to agree. The 4 speed with square port heads and the huge intake are a recipe for a struggling 60 foot. Id be surprised with faster than 12.50's depending on cam specs.

An oval port headed engine with a good ol performer rpm intake and the typical "street/strip" profile that works well with your comp has potential to be more streetable and faster.

I get the impression that its gonna be lazy down low(based on the given build specs) and 4 speed cars dont like this very much.

I ran a 12.0@115, 1.7x 60ft, with a 67 camaro 4 speed
454 + .030"
fully ported 290 casting oval ports w 2.19/1.72 valves
248/258@.050, 570 lift solid lifter cam
victor jr oval intake
750dp holley
10.4:1 true calculated compression
KB203 pistons
3/8 rods w arp bolts
shifted at 6000rpm
dodge A-833 4 speed w/ 266 first gear
4.11 rear gears in dana 60
28-12.5 ET Streets

It was VERY hard to launch the car,, it woul bog if launched below 3500, and it would spin like MAD if launched above that rpm.
the key to getting it to run as quick as it did was to tune the tire's air pressure so that the car would spin in a controlled manor. this was tough, and I ended up running a little more air in the tires than ussual, and launching around 3-3300 rpm - where the motor is almost bogging, but the extra air pressure allow the tires to spin enough not to bog the motor.
It comes down to this: SOMETHING HAS TO SLIP! either the tires or the clutch. If you try to dead hook a stick car that has big slicks and a normal clutch - something WILL break. I had broken everything you can think of between the motor and the tires before I figured this stupidly simple fact out. I tryed tuning for the "controlled tire spin" with a tiny bit of success, but in the end I went and purchased a RAM Single-Iron "slipper clutch". I havent run it yet, but rest assured I will let people know how I make out when I get my car out of paint jail!
Barrett

It was VERY hard to launch the car,, it woul bog if launched below 3500, and it would spin like MAD if launched above that rpm.

It comes down to this: SOMETHING HAS TO SLIP! either the tires or the clutch. If you try to dead hook a stick car that has big slicks and a normal clutch - something WILL break. [/quote]


YUP......EXACTLY what he said........



I'm sticking to my 13.30.




bob

I run a 12.30 with a similar combo, 456 and turbo 350. No tune up yet.

The car has 4.11 gears and a borg warner super T10 with liberty modified don't leave off between shifts. I would agree with the low 12's but 13.00 maybe with a grandma driving engine is close to 500 hp

Wow... I continue to be amazed by the predictions. If it's not in the 11's, something aint right. If traction is an issue, try launching in 2nd gear... :cool:

Jim

I always like to be conservative. It does sound like the makings for an 11 second engine.....give or take a little depending on the actual cam specs, compression, tuneup, exhaust and what not.....but thats not all Im going by.

Im mainly focusing on the inherent issues you always see with a first time out. As far as traction VS bogging VS controlled slipping and what not.....its a fine line with a stick. If it grabs, the potential to bog a lot is there cause of the square heads and big intake. Get the rpms up enough to avoid bog and it might break stuff if it dead hooks.....or it spins like mad until you get it figured out. Usually you dont get it figured out the first time out...and its especially harder with a stick. So reguardless of whether the power is there, I bet you fight the first 60 foot for a little while til you really nail down the procedure. And those first 60 feet have a HUGE impact on the ET clock.

The car has 4.11 gears and a borg warner super T10 with liberty modified don't leave off between shifts. I would agree with the low 12's but 13.00 maybe with a grandma driving engine is close to 500 hp
What kind of clutch are you running? - plate pressure, friction material on disc.
slicks? what size?
slapper bars at least?
there is definately potential for 11.50's, just as there is in my car, but it may take you a while to get there.
my first pass with my car was 16.40 @ 108......hahahahaha. spun hard in first, missed 2nd trying to shift while it was spinning. big learning curve!:yes:
about 2 dozen passes later, I got it down to 12.0. I am certain I'll get a 11.50 out of it next summer.
Barrett

It has 4.11 gears, 3" flowmaster, cam is around 282-290 640 lift