Hey there guy's just looking for some advice to try and pick up my 60 foot times. the car is a 74 charger with a mild 360 60ft is around 2.2 seconds i run the quarter in 14.80 at around 102 mph. the gear is a 3.23 sure grip and i am running a 727 with a mancini econo converter the advetised it at 3000 but wioth the small block it stalls around 2600-2700 rpm on a prepped track with street tires i load the converter to about 1500 and ican launch with no spin most runs i just use first and second once in a while i will need third as i am getting to about 6100-6200 rpm. the car is super consistent all my runs are 14.82 to 14.88. i know i can use more gear and the plan is to go up to 3.55, i don't wantto go higher than that as this is a street car with a couple of strip passes per year. the rear and the front suspensions are mostly stock but i removed the iso clamp setup and all the rubber from the rear and installed solid aluminum subframe bushings in the front. any help would be great.

bump

Well if you aren't overpowering the tires and you want a better short time you need more gear or less weight.The 3.55 might help some but you are still not going to get that much car out of the hole without some mechanical advantage
Gus

Buy another set of wheels and put some shorter drag(as short as you can get with the same width or wider than your street tires are now) slicks on them, use them at the track only

My buddy at work has a 72 Maverick we take to the track some. He put it all together as a street car with a 302, C4, 3.80 gear and Cheap "stall" off Ebay. It looked good on launch but his 60's were pretty bad, the car wouldn't spin his small street tires and it seemed dead out of the hole. We talked it over and he went with a Edge custom converter. As soon as it was installed it was clear the huge difference. It would blow the tires off on the street. Went back to the track and it picked up 6-8 tenths (8.8's to 8.0's) in the 1/8th with no other changes. He says the car even drives better now on the street.

What size tires are you running? While its true that a shorter tire decreases the contact patch, it could give you a shorter effective gear ratio. I run 3.23's and have 275/60's for the street, which are ~28" tall, then switch to some 26x10 ET streets for the track. If you are only going to race it a few times a year, I would keep the gear and get a set of shorter stickies to run at the track.

You shouldn't need to worry about tuning until you are breaking traction, but generally you want to free up the front and ensure you are getting adequate travel to improve weight transfer. It's going to take alot to get that car out of the hole.

I don't have much to add, but I am basically in the same boat with my '85 D150 except I have even worse 60' times. I need to figure how to get the power to the ground while still maintaining good comfortable street ability. In my case though, I spin right through first and most of second gear (833 O/D trans).

Converter. Put another 1000rpm stall in it and hold on . I would almost guaranty that a change to a good converter would make more difference than any gear ratio change you could make.

Did you clamp the front segments of the springs? You need lower gears and a better converter. Your mph indicates you can run 13's but you need lower gears.

yep about what i thought. i think i will spring for a converter and get a set of 26 inch drag radials. rught now i run 275-60-15 on the street and i can smoke em hard but on a prepped track it hooks hard so a bit mor converter and shorter tire will help for sure,i may pick up some 355 as well just to see how it works with a bit more gear. i think i will put headers back on as well, iwent through a little originality phase there for a bit but i think that is over now!

I think you would be better of with the taller tire and go with a minimum of 3.91 gears. If you have the rpm the car would et the best with 4.56 gears.

Get the Mickey Thompson Drag radials they hook the best.
If you run the car on the street 3.91 gears wouldn't be bad with a 275x60 tire but at the track put on the 26 inch drag radials.
Taller tires hook up better than short tires though.