ok so i have 22 inch slicks that i ran last year with my turbo d- series since then i have swaped a turbo b-series.. b16 trans.. will the 22s be a little small?? what wud a good size be i was thinking maybe 23.5s or 24s lmk thanks

 

hp?

 

400 ish...

 

24.5

 

ya 22s will be too small. you can get away with 23s actually, but the best bet would be the 24.5.

 

I was always told anything over 300hp should run 24's....good luck with the twin cam

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turboZChatch &raquo;</TD></TR><TR><TD CLASS="quote">I was always told anything over 300hp should run 24's....good luck with the twin cam </TD></TR></TABLE>

not necessarily. 24.5" on a 300hp D-series or even B-series I think in general is overkill. There's trans gearing and FD that you have to consider plus RPM shift point. It also differs if all motor or turbo as well.

If it can BITE at a smaller tire and it matches your gearing and power, I would go with the lower tire. Its not necessary to go BIG just to hook up. Look at the turbo 800hp SFWD cars of today, most are on a 24.5"and 25" tall tire, and getting good 60fts. A few years ago, at the same hp, everyone would have thought to use 26s and 28s immediately at that HP.

 

ok so if the shift point is right around 9k and with the gear ration of the b16 trans wat wud you do..

 

at 400ish Hp, youre at that mid point where you are maxing out the 23s, but at the same time, starting to need the 24.5 but dont necessarily NEED it.

We built a race motor for some guy here, he was making 500s actually and using the 23s since he couldnt fit the 24.5s with the suspension he has. he was able to us the 23s still and hit high 10s with it.

The thing with the 23s at a higher hp, is you have more of a chance to spin tires. the 24.5s you can hook em all day long. Its pretty much your call on this. Some people dont mind the 23s and a little spin, since they dont want to use too big of a tire yet. but at high 400s, b16 trans and 9K shift point, the 24.5s would be better. Just dont run the tire pressure super low(5-6psi like some 700hp cars run). you wont need it to run that low yet. I'd say start out at 8-9psi and see how the car likes it and work your way down .5psi at a time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ExospeedAMcrx &raquo;</TD></TR><TR><TD CLASS="quote">at 400ish Hp, youre at that mid point where you are maxing out the 23s, but at the same time, starting to need the 24.5 but dont necessarily NEED it.

We built a race motor for some guy here, he was making 500s actually and using the 23s since he couldnt fit the 24.5s with the suspension he has. he was able to us the 23s still and hit high 10s with it.

The thing with the 23s at a higher hp, is you have more of a chance to spin tires. the 24.5s you can hook em all day long. Its pretty much your call on this. Some people dont mind the 23s and a little spin, since they dont want to use too big of a tire yet. but at high 400s, b16 trans and 9K shift point, the 24.5s would be better. Just dont run the tire pressure super low(5-6psi like some 700hp cars run). you wont need it to run that low yet. I'd say start out at 8-9psi and see how the car likes it and work your way down .5psi at a time.</TD></TR></TABLE>


24.5's

 

Exospeed let me see if I get were your coming from ......what your saying is if a setup making 400hp using a ls tranny with a taller tire (24.5 in this case) would have more of a posabilty to hurt you do to the taller gearing larger tire combo were as if you took the same car and used a 23 the 23 would out perform but if u were to use a b16 tranny the 24.5 would not be out performed by a 23 inch tire? The way I looked at it was if your at 400 hp with a b16 tranny just say...you have a greater chance of spinning the 23s over the 24s in which case the 24s would be putting more power to the ground....correct me were I am wrong please

 

I'm on my way out of the office so real quick here.
23s will spin easier since its just a smaller tire and if you have the power, you can easily overpower that tire and spin it. With a taller more bite of a 24.5", you wont have that problem much.

Like i was saying, its really hard to say at 400hp. You can use 23s here regardless of the LS or B16 trans. HP and Tq makes alot of difference. 400hp vs 495 does make a difference in what size may work for you. Realistically, a 400hp peak is actually mostly still in the 300s, so thats why I feel the 23s will still be ok.

you really have to KNOW what hp you are already at. Not saying this is you, but I get alot of people saying theyre making 650hp, and they get the biggest tire 25s/26s from us. Then they actually dyno, they only make 495hp and then thats on a Dynapack. So theyre using a tire thats not right for the application.

keep in mind there's also tire pressure you can work with. you can drop the tire pressure on the 23s tohook up better or get a 24.5 but just dont run too low of a tire pressure so its hooking too hard and the car cant push it.