question about drag radials

dautoop · 09-10-2009

i know this has probably been asked before but here we go.

my buddy is buying a set of M/Tdrag radials tomorrow for the test and tune next week at shannonville speedway, he would like to know what psi he should run in them, short med or long burnout and also if he needs to go it to the water trap as he always ran street tire and has never gone in the trap.

any help would be great.

2oo5GT · 09-10-2009

DR's like to be smoked pretty good. miss the water box with the fronts tires, then back up into the water box. i usually burn my DR's for about 5 or more seconds. I would start at around 18psi and maybe go down to 16psi. If they are on some old rims, i like to put a mark on the lip of the rim and tire with a shot of spray paint. That way i can see if the rim is spinning in side the tire.
MT's will hook really good.

mmb617 · 09-10-2009

I have to agree with 2oo5GT. When I was running DR's I played with the pressure and around 18 psi worked best for me. I also smoked them pretty good and they still lasted for 150 passes.

shinerstang · 09-10-2009

Crap..... 18psi? I run 10 in the '02.......

It really depends on your hp and launch techniques. 18 is a good place to start to find where the sweet spot is. You should be getting maximum launch without excessive spinning or dead hooking.

**RLG34750** · 09-10-2009

Quote:

Originally Posted by shinerstang

Crap..... 18psi? I run 10 in the '02.......

And I bet you are running tubes too......

dtuna42 · 09-11-2009

10 psi? must be tubed - and prob screwed, too, and if not you probably should be cause I'm thinking your tire is probably walking along the rim .... I think the MT website says their drag radials are not meant to be used below 11psi; 12-20 is the recommended range - and you've already heard guys chiming in that they are in that range- I have been doing about 16-17 with pretty good results.

shinerstang · 09-11-2009

They have been screwed too. Anything over 12psi makes me spin when launching off the brake......

**RLG34750** · 09-11-2009

Tubed & Screwed......

Hold me mommy .......

I'm afraid of the dark.......

stkjock · 09-11-2009

which MTs and what size?

uedlose · 09-12-2009

we are running 18 psi.I just get them smoking then roll on up. LOL but we dont have any 60ft at all the best has only been 1.70 with the turbo set up.

**RLG34750** · 09-12-2009

Quote:

Originally Posted by uedlose

we are running 18 psi.I just get them smoking then roll on up. LOL but we dont have any 60ft at all the best has only been 1.70 with the turbo set up.

we all know turbo cars don't 60'.......

uedlose · 09-13-2009

Quote:

Originally Posted by RLG34750

we all know turbo cars don't 60'.......

LOL.. yea it takes a bit of fun out of it when it is foot braked... But if you leave off a trans brake and you can get them to hook OH they will 60ft.. if they hook.

dtuna42 · 09-20-2009

Quote:

Originally Posted by stkjock

which MTs and what size?

I am using 265/40/18.

tccoyote · 10-03-2009

Quote:

Originally Posted by dautoop

i know this has probably been asked before but here we go.

my buddy is buying a set of M/Tdrag radials tomorrow for the test and tune next week at shannonville speedway, he would like to know what psi he should run in them, short med or long burnout and also if he needs to go it to the water trap as he always ran street tire and has never gone in the trap.

any help would be great.

If you go to the M/T website,you can get the recomended tire pressures for your weight car.

stkjock · 10-03-2009

Quote:

Originally Posted by dtuna42

I am using 265/40/18.

I run those as well, I've found 17psi works best....