My car is slow of the line?
#1
My car is slow of the line?
Hey there I have an 81 camaro with a 350 (edelbrock rpm performer intake and cam, 650 cfm carb, long tube headers, just got rebuilt and tranny is T350 with b&m shift kit) and i cant seem to spin my tires of the line or even get a decent launch, it seems every car beats me off the line... i think it may be my stock 2.73 ring gears or my carb needs tuning and this is why i came here cause i thought you guys could help me
o and Im replacing my ring gears soon and i need advice on what too get i was think 3.73s but I dont know how stressed my engine would be on the highway...keep in mind i have a 3 speed auto with a final ratio of 1.00
any help is much appreciated
o and Im replacing my ring gears soon and i need advice on what too get i was think 3.73s but I dont know how stressed my engine would be on the highway...keep in mind i have a 3 speed auto with a final ratio of 1.00
any help is much appreciated
#2
it is most likely the gears... 2.73 is pretty "low" for a car. my car has 3.42's and it doesn't even roast them very good from a 5mph rolling start, but of course if i pop the clutch or turn it roasts them... so i would definitely would say that it would be the gears. have you got it dyno'd?
#5
'Er,that would be "high" not low but yeah 2.73's are not exactly drag gears lol.
Bigger numbers = lower gears,less top seep and more power off the line.
3.73's are still quite streetable,might be a little low if you spend a lot of time on the superslab.
Not near as bad as 4.10's though and a lot of guys run them on the street.
A buddy of mine used to run 4.88's on the street in a '67 SS427 Chevelle.
That car was mean off the line lol,12 bolt posi and ladder bars,built 427/4 speed.
Bigger numbers = lower gears,less top seep and more power off the line.
3.73's are still quite streetable,might be a little low if you spend a lot of time on the superslab.
Not near as bad as 4.10's though and a lot of guys run them on the street.
A buddy of mine used to run 4.88's on the street in a '67 SS427 Chevelle.
That car was mean off the line lol,12 bolt posi and ladder bars,built 427/4 speed.
#7
Mine had that same problem but my torque converter was bad and i changed my gears to 4:10s in my 81 camaro with a 3 speed. And ill be honest my max speed in the car is still 157 on gps.befor the tree crushed mine. but mine is a 383 stroker.
#9
Chevy_Muscle> Your car's stock engine was rated at 175hp with 8.2:1 compression for that year it came out. Is the engine still stock?
When I got my 74 someone was in the process of taking it and turning it into a circle track racer. It had a 2.56 pegleg gearing in the *** but it was great on the freeway. I've moved to posi 3.42's along with a 2300 stall and I've definantly seen an improvement with my launches but at the cost of my highway driving. Where I used to do 80 at 2400 rpm's I now have to get around 3500 rpm for the same speed. I'm moving to a six speed to take advantage of two overdrives with the last one being a .5 gearing and then dropping either a Ford 3.89 or a 4.11 in there. In sixth gear I would still be running a final drive of 1.94 with the 3.89's.
If you do a lot of highway driving you'll notice it. I'll tell you that right now. It's up to you if you want to sacrifice it.
#10
my motor redline is at 8200 it has a 2500 stall and it is a build 383 stroker full roller. it hit 157 on gps. in a 3 speed i didnt bealieve it either and that was untill it hit redline. the car it self was quick as hell. i dont really kno wat all is exactly done to the tranny but i kno it is not stock at all... cus in 1st gear i can do 62 2nd gear i can hit 104 and redline in 3rd is 157. max speed. my tire size is 255/60/15