Re: 4.30's or 4.10
 

4:56

Don't fear the gear!

LS:claus:

Re: 4.30's or 4.10
 

:thumbsup:

Re: 4.30's or 4.10
 

4.56 seems like it would be to much gear? 430 is perfect fit in the mach1 i have 430s now but bought them used..... so i would like to get a new set.... but i am open to 456 if its not too much gear.... just not sure

Re: 4.30's or 4.10
 

thanks slojunk!

Re: 4.30's or 4.10
 

Anybody have a comparison in drag times between 4.10's and 4.30's? I currently have 4.10's and I'm running 12.8's. I'd like to see if switching to 4.30's (or even 4.56's) would be worth the money vs. the ET gain.

Re: 4.30's or 4.10
 

Nobody has any thoughts on this?

Re: 4.30's or 4.10
 

Back when I was NA I picked .2 going from 4.30 to 4.56 trapping 6400 with a 26" DR 5 speed. And it was totally streetable...not nearly as bad as you would think.

Re: 4.30's or 4.10
 

No hard data on that but with a tire that dead hooks I suspect .05-.08

Re: 4.30's or 4.10
 

^^^ I agree...

Re: 4.30's or 4.10
 

Thanks, I kind of suspected. To me .05-08 isn't worth the almost $500 in total costs.

Re: 4.30's or 4.10
 

That depends on your competition level and goals. For me it's not worth it. But if I had the money and desire to win it would be priceless.

Re: 4.30's or 4.10
 

No, I run in the Street ET and Pro ET classes at the local track. If I run 12.8's vs. 12.7's, doesn't matter. Now if I can improve .3 or more, than it's worth it. :)

Re: 4.30's or 4.10
 

so Thinking about going with 4.56's I have 4.30'S now... Is it going to be noticable going to a gear like that? do not do a lot of highway driving... Just want some input from all of you that have 4.56's. Thanks!

Re: 4.30's or 4.10
 

I had 4.56 gears in my N/A Mach and loved them.

Re: 4.30's or 4.10
 

What do you feel you are lacking with the 4.30?
Yes you will notice a difference. 4.30's felt like a bump up from the 4.10's. 4.56 brought it into a different game. Everything got quicker to do and revs up faster.

You will need a slick or some type of bias ply tire to race. I have tried drag radials (all brands) and they either hit or you blow the tires off. I am also launching at 6500 to 7 grand. I use Drag radials for daily drivers

Do you care about high revs, gas mileage, shifting twice to get across an intersection without reving up to 4500 rpm in 1st!

I have had 3.55, 4.10's , 4.30's and currently for the last 6 or 7 years 4.56's. take what I say as a grain of salt as other people have had the same or different experiences then me. I have had the car since new and started modding it about a month into ownership. Most of my testing of gears or rear end/ tire stories are on this site.

Good luck and if I would do it again I probably would have left it at 4.30's cause I could drive to the track with my Hoosier or MT drag radials, lower the psi to about 12 and pull of consistent 1.68 60 foot times and then put air back in and drive home with the AC on if needed! :)
Now I haul a jack, wrenches, air gun, 4 bias ply tires and whatever else I feel I need to change them up. I'm 54 and getting sick of changing tires at the track! :) Good luck man.

Re: 4.30's or 4.10
 

What he said:smokin: 4.30s have been in my Mach since 2004.