1st post - whoo hoo

What are the main differences between running 13's opposed to 15's, my brake setup means I would have to swapover for street use as the 13's would not clear.

Any thoughts on this - also looking for a 4x100 setup with skinnies at the rear. Just need to work out if I need 13/15's...

 

the advantage of the 13 is more side wall. but the biggest 13" tire i believe is a 26"

 

gonna depend a lot on how much power you are going to make and what overall height that you need

 

Main obvious difference is sidewall.

 

I've been thinking about this aswell.
Lets throw this out for instance.

2000lbs car/driver
220-240whp set-up (NA)

would 15's or 13's be the better tire?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 91’ LS-VTEC &raquo;</TD></TR><TR><TD CLASS="quote">I've been thinking about this aswell.
Lets throw this out for instance.

2000lbs car/driver
220-240whp set-up (NA)

would 15's or 13's be the better tire? </TD></TR></TABLE>

I'd run a 13" wheel with a 23x7.5x13 tire. Considering you have a b16/itr trans ratio

 

will be running 23's. just havn't decided on 13's or 15's.
I've ran 22x8x15's in the past with less HP and had good results. But I've always wonderd about 13's

 

im very curious to the too. i am in the 350+hp range and running a 23x9x15 in M&h. will i see any signifacant change if i drop to a 13in wheel and 24.5 in slick?

 

First off you shouldnt be running 9 inch wide slicks on 6.5 inch wheels.(assuming your are running the rotas in the pic)
Thats your first problem. Slicks should be somewhere near 1 inch wide as the wheel.

Id go with the right wheel first.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16z6Tcrx &raquo;</TD></TR><TR><TD CLASS="quote">im very curious to the too. i am in the 350+hp range and running a 23x9x15 in M&h. will i see any signifacant change if i drop to a 13in wheel and 24.5 in slick?</TD></TR></TABLE>

What do you 60 now?

In my experience, YES. You will notice more traction.

 

i dont think you are correct with that. wen i called M&H i talked to john and he recommended these to me. i explained to him the rim and hp goals of the car and this is what he recommeded. ill let john post to clear this up

and edit its an 8.5 not a 9 inch slick.
http://www.mandhtires.com/stor...etail

 

I could be wrong. Its happened before haha.

Only reason I said that was because of my own experience.

I had 23x8x13 m&h on vx wheels and couldnt pull better than a 1.9.

Slapped on 7.5 inch wide lensos and went 1.701

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMisGOOD &raquo;</TD></TR><TR><TD CLASS="quote">

What do you 60 now?

In my experience, YES. You will notice more traction.</TD></TR></TABLE>

i never got a good lauch at the track so i cant reply honestly.

 

i was running a friends eg hatch, laid down 208whp. cut 1.88 60's on 22x8x15's. switched to 22x8x13's, cutting low 1.7's and dropped E.T. 2 tenths cut 2 1.68's also
and that was open diff.

more side wall, means more wrinkle, which means more traction

if you do not need bigger than a 26" tire, run 13's. plus they are ususally lighter