Wheel Set up

[Coz]

I am seriously looking at a 94.
It has the following wheel set up: 1994 Acura NSX Enkei Wheels 215/35/17 F, 245/45/17 R.
Is this ok or should I change the rears out to 18's ?
Thanks for the help and feed back.
Coz

 

[Coz]

Actually, should I change the fronts back to 16's...which would take it back to the original configuration.

Acura NSX Enkei Wheels 215/35/17 F, 245/45/17 R.
Is this ok or should I change the rears out to 18's ?
Thanks for the help and feed back.
Coz[/B][/QUOTE]

 

[Lud]

If those sizes are correct, they are a very odd selection for an NSX. In fact, I expect TCS would be activated by them either constantly or at the slightest provocation.

215/35-17 is an odd choice of tire size for the front. It's about 3% smaller than the stock 215/45-16 size.

The 245/45-17s are about 4% bigger than stock 245/40-17.

That's almost a 7% difference from stock front-to-rear. To keep TCS happy you should keep the front-to-rear size ratio much closer to stock than that.

You can run 17" all around but you need to pick the correct tire sizes if you want TCS to work.

 

[Coz]

What tires sizes would you recommend that would bring it back to where it should be without replacing the wheels ?
I am hoping that the tires can be changed out to compensate for the front wheels being larger than 16's.
Thanks for the post.
Coz

Originally posted by Lud:
If those sizes are correct, they are a very odd selection for an NSX. In fact, I expect TCS would be activated by them either constantly or at the slightest provocation.

215/35-17 is an odd choice of tire size for the front. It's about 3% smaller than the stock 215/45-16 size.

The 245/45-17s are about 4% bigger than stock 245/40-17.

That's almost a 7% difference from stock front-to-rear. To keep TCS happy you should keep the front-to-rear size ratio much closer to stock than that.

You can run 17" all around but you need to pick the correct tire sizes if you want TCS to work.

 

[B-rad]

I ran a 17" set up with 215/40/17 front and 255/40/17 rear and it worked very well.

 

[Lud]

On my old '91 I used 17" on all corners for a while with:

215/40-17 front which is about a 0.7% increase from the stock 215/45-17

245/40-17 rear which is the stock 17" rear size.

I had pretty good results with this setup. The only problem (at least at the time) was the number of high performance tires I could get in these sizes was rather limited. It's been several years so there may be more choices now.

The sizes Brad mentions (the same fronts, about 1.3% larger in the rear) would work fine as well.

 

[Coz]

Ok, just so I understand. I can leave the fronts alone at 215/35/.
But change the rears to 255/45 instead of the current 245/45's.
This giving the car a better and closer percentage change from from front to rear.
I do appreciate all the help !!!

 

[Lud]

That is actually the opposite of what you want to do. You want to increase the total diameter of the fronts and/or reduce it on the rears. The best way is probably to get taller profile fronts and/or lower profile rears.

 

[Coz]

Thanks Lud, I was getting confused. This is all new to me.

Originally posted by Lud:
That is actually the opposite of what you want to do. You want to increase the total diameter of the fronts and/or reduce it on the rears. The best way is probably to get taller profile fronts and/or lower profile rears.

 

[nsxtasy]

You might want to check out the tire size calculator at http://www.powerdog.com/tiresize.cgi

You can use it to compare the outer diameter of two or more different tire sizes. Thus you can see how much a given size tire compares with that of the OEM tires. Systems like the traction control depend on keeping the same ratio front to back, which means any percentage changes at one end should be roughly the same at the other end. If you use sizes that keep the same outer diameter as the OEM tires, you have a further advantage of not changing the effective gearing.

 

[Coz]

Wow. Using the system. It shows a 12% difference with this setup.
Thanks for the link.....Appreciate the help.


You can use it to compare the outer diameter of two or more different tire sizes. Thus you can see how much a given size tire compares with that of the OEM tires. Systems like the traction control depend on keeping the same ratio front to back, which means any percentage changes at one end should be roughly the same at the other end. If you use sizes that keep the same outer diameter as the OEM tires, you have a further advantage of not changing the effective gearing.[/B][/QUOTE]

 

[Coz]

What would be the idea set up ?
Wheels and Tires sizes ?
Which would allow for the addition of a larger brake system ?

 

[nsxtasy]

What would be the idea set up ?
Wheels and Tires sizes ?
Which would allow for the addition of a larger brake system ?

I don't think there is any "ideal" setup. For example, do you care more about looks, or about performance?

There are quite a few aftermarket brake systems on the market (see the FAQ for details). Some of them fit on the stock 15"/16" wheels, some fit on the stock 16"/17" wheels, and some only fit on specific aftermarket wheels (usually Forgeline or Technomagnesio). Best bet is to check the website of the vendor whose brake system you're considering, and see what it says there. If you don't see the info you're looking for, contact them by e-mail or phone. Here are the major vendors of NSX brake systems:

RM Racing - http://www.rmnsx.com
Dali Racing - http://www.daliracing.com
Comptech - http://www.comptechusa.com

 

[Coz]

Thank you sir....