where is the top end mph?
 

just trying to figgure out if where my top end is. I am 60 footing 1.56 with an 1/8th mile of 96mph but my top speed is 11.36 at 113.76mph. Why am I loosing so much on the top? any sugestions on shifting or anything is great. I have a 87 lx with a 409 with c-4 trans with 8.8 and 4.10's with et drags 28/10.50-15 help me

What is the RPM when you cross the 1/4?

How big of a stall converter do you have?? it might be slipping on topend. your only picking up 17 mph in the second 1/8. i run the 1/8 mile about 79-80 mph and i pick up about 20-21 in the second 1/8.

You should be going at least 5mph faster. Do you have a fuel pressure guage you can watch during a run? Not enough fuel will slow you down on the top end.

I have almost the same problem and I attribute it to the converter.

I run 7.16 @ 98.92 in the 1/8th but only run the 1/4 in 11.12 at 117.

I have a 4K stall on it and I think it is slipping WAY too much at the top.

just to answer the questions some of you have. I have a fuel pressure guage and it reads 7psi the whole way down the track I run a 830 holley so I am sure that the prob is not fuel
I have an A-1 automatics 3500 stall converter art car race prepped c-4 aluminum shaft can the converter slipping slow down the car that baddly?
or is there something else I am missing??

wow I must really be getting screwed on the top end LOL, I run 7.23@ 94 in the 1/8th and only 11.74@114 in the quarter, with a 1.517 60 foot????????????????????????????
where is our top end going?

Wow is right! That is great 60ft time! I am only getting around 1.70. Hopefully the C4 that I am going to put in will help that out for me. I am also hoping that a different converter will solve my top end problem.

Has anyone heard of
http://www.edgeracingconverters.com

They claim that their converters will improve your top end MPH with a more efficient coupler.

I am thinking of giving them a try.

I think I found my problem..............every valve in my valvebody was stuck, fixing it right now, I'll keep everyone posted.


Kenny

well I've found out where my top end was going, for starters, my direct cluthes were completely gone, and my converter was a lock-up, so now I have a fresh transmission, and a non-lock up converter, and we'll see what happens from here.

If I woulda had the money, I would of got a PI Converter....Best on the market :)