Im restorin a 79 Z28 and im puttin a 350(about 300 HP)in it and a turbo 350 transmission and its got a 3.42 locking rear end and when im done restorin it im goin to race my brother and hes got an 86 mustang GT and its got a 302 in it T-5 transmission 2.73 rear end BBK headers and Bassani Xpipe. I was wonderin who do u think would win?[sm=burnout.gif]

mustang. those old 5.0 motors can boogie.

I can't see why you won't win handily. There is no substantial difference in weight. You have a 350 to a 302, 300 HP or thereabouts (are you sure its mot more like 265) to about 235 maybe), and 20% higher gearing. I don't think the auto trans will matter one way or the other, but bave you done anything to the stall speed of the Turbo 350 so you get off the line faster.

it does have about 300HP

I can't see how it will be much of a contest. You can get 300+ out of a 302, but from what you said he is no where near that.

i think i could beat him but his 302 has some power and his car weighs less

i havent messed with the stall speed yet but it does have a shift kit

if you have 300hp, you should win because his 5.0 with some exhaust mods isnt going to build anywhere near that and his gears will hurt him,.

Plus a 2.73 is just an awfull gear for a fairly stock 302, they lack torque and that gear makes it worse.

isnt that a lower-than-stock gear?

no 2.73 are the stock gears

Those 5.0's are fast. I have seen them kill stingrays. better watch out.

You'll thump him off the line but by the end of the quarter he'll blow you away. That 302 will spin up faster and the 2.73's will give him more speed at the end. You will run out of gear and unless your motor can sustain 7 grand you will run out of acceleration to soon. His motor will have power in reserve and yours will be out of breath. Low gears require alot of motor in order to make speed.

Having steeper gears doesn't make you accelerate quicker on the top end.
It DOES however give you a higher top speed.

ORIGINAL: v8chvyguy

You'll thump him off the line but by the end of the quarter he'll blow you away. That 302 will spin up faster and the 2.73's will give him more speed at the end. You will run out of gear and unless your motor can sustain 7 grand you will run out of acceleration to soon. His motor will have power in reserve and yours will be out of breath. Low gears require alot of motor in order to make speed.

WOW you sir have no clue. The 2.73 will hold him waaaayyy back, the realtivly weak 302 will not have the torque to "pull" such a high gear. The Z/28 in question has a 3.42 gear, thats really a mild gear and you don't even know if his tire is taller than stock or not (which affects the final gear ratio). Even if they were going for a top speed run the Z will still come out on top. Also for those that think a stockish 302 has good top end, obivosly you have never owned one (I have had a few) those motors give up at abot 5000 rpm in stock form so I would hardly say they are top end monsters. The benifit of the 5.0 is that, like the 350, there is a very good after market.

well i think his nitto NT 555R tires prolly help him alot

All I know is many moons ago (8 or 9 yrs) I knew a guy with an 87 5.0 GT, stock drivetrain, T5 and mild motor, normally aspirated, beat 2 other stangs, Z28, a vette, and a 72 C10 truck (easy win), all in the same night at the track. He was tunrning consistent 11.7's in the quarter. the last two runs were on seven cylinders, # seven shorted a plug wire causing an intermitent miss once we taped it up, and we did'nt have spares. No, I've never owned one, but, I've had friends that had stangs of that generation and they were pretty formidable. I wached'em beat other cars and get beat by better cars, but, they will walk and talk. During the late 80's I watched alot of SCCA street stock class raceing at the track, at the time the front straight was the quarter mile drag strip, and I noticed that the mustangs would beat the Camaros on the straights almost everytime, but, could'nt out corner or out brake them. Considering the motors and drive trains had to be stock that tells me the mustangs had them beat in the gear department, which is why they could'nt compete in the corners, to much momentum. This may not be the best comparison, but, it's what I based my opinion on. I over exaggerated in my last post, I apologize. The 5.0 may not beat the Z28, but, I think he'll give him a run for his money.

yeah but you can go to any drag strip and watch a 5.0 beat camaros. that does not necessarily mean that those 5.0s are set up like this one they can have alot more dumped into the motor

it might be a good race if the 5.0 got some different gears. They can haul pretty good.

i have had a bone stock 91 Z28 5.7 and in louden new hampshire at there drag track i never lost to a stock 5.0 stang, more even race when it came to the newer ones at the time like the 99's. and at that time i was pulling 13.9- 14.0 at around 99mph. and that was when the car had 120,000 on the motor.

Aaron

My V-8 5.4L F-150 2002 ate a 5.0L mustang and I got 3.73 gears front and rear. We got our cars up to 85 miles per hour. The mustang and the camaro bone stock, the camaro would come out on top. This is due to #1 displacement, #2 more torque for the 350 since they have longer connecting rods, #3 the gearing is for torque, #4 stock the camaro put out more hp and torque than a 5.0L. You do the math.

Or just grow some balls race him and see what happens. NOt like you're putting the pink slips on the line or cash.

ORIGINAL: v8chvyguy

You'll thump him off the line but by the end of the quarter he'll blow you away. That 302 will spin up faster and the 2.73's will give him more speed at the end. You will run out of gear and unless your motor can sustain 7 grand you will run out of acceleration to soon. His motor will have power in reserve and yours will be out of breath. Low gears require alot of motor in order to make speed.




Chevy Forums are funny! No wonder it's so easy to beat these folks!
Where do they all come from???

ORIGINAL: shnormo

My V-8 5.4L F-150 2002 ate a 5.0L mustang and I got 3.73 gears front and rear. We got our cars up to 85 miles per hour. The mustang and the camaro bone stock, the camaro would come out on top. This is due to #1 displacement, #2 more torque for the 350 since they have longer connecting rods, #3 the gearing is for torque, #4 stock the camaro put out more hp and torque than a 5.0L. You do the math.


Um, #2, Stroke helps torque a little bit too also #4, Hp to weight ratio is more significant and would give a better indication of which car would win.

I have a 79 camaro also and if you have 300 horse and decent gears you'll win. the 2.73 gearing in the stang is terriable for a 1/4 mile run. great if you wanna cruse at 85 on a highway all day at 2500 rpm's not so good at the strip. I'd bet your in the mid 14 second range. let us know how you make out.