I'm definately going to be getting some rims this summer and i'm either gonna go with 15" slips or 16" rota C8s, now i'm wondering, how much performance will i lose if i goto the 16s? will it be really noticable, what do u guys recommend?
thanx.

 

you're probably not going to notice much difference....just make sure to get the lightest 16" rims you can afford. that will help with any loss.

 

You'll probably loose some HP but the benefits are better grip with 16 inchers, any bigger on a Honda and its all show.


http://www.motorgearsonline.com

 

WORD.

 

15"

 

Youll prolly lose some performance but you wont notice it

 

how big are stock type R wheels?

my friends car makes a scraping noise when she turns
she has 17s on a prelude

 

stock itr wheels are still 15" I believe. But as far as power loss, it may not even be measurable with all of the different types of losses you could show on a dyno. My shop put 18x10 and 18x8 TE37 on a 650whp Supra and it only gained 10whp, so these #'s are miniscule compared to a honda. When I dynoed mine I really didn't even notice a change in hp #'s from a 25# 17" wheel to the stock GSR wheels so it really doesnt take that much away from us honda boys. But I could feel the difference on the street, way more wheelspin from 15" wheel

 

i went from 15in stock to 16slips and I didnt notice a difference at all in acceleration. I did notice a little bit better handling.

 

performance doesnt only imply speed.

15"s will be more comfortable to drive around with. I have 14, 15 and 16's.
Many people run with smaller diameter wheels on the track. If you see someone running 17's its rare.

Im currently driving around with 14's for the winter. The car drives fantastic. The car pulls off the line faster and the difference in cornering is minimal. Obviously, its complemented with the springs and shocks you have on the car.

16's look great on the car and rides stiffer and harsh on bumps, 14's make the ride comfortable and zippy, 15's are the compromise.

 

I think the increase of 15" to 16" is minimal and that you won't be able to actually "feel" the gain in weight. In other words, I'd go for the 16's.

 

Some people mention the larger diameter of the 16's will effect acceleration...

 

I second that.

 

IMO, it won't make any big difference, though.

Theoretically, in terms of power, all depend on the weight of the rims if the width of tires are the same as before. So if you get heavier 16'' wheels than 15'', it will cost some power. However, if the tires get wider, you will get some more tractions and there will be some tradeoff eventually. One more thing, if you move to lower profile tires with 16'', it will give you better cornering performance, too.

 

Things to consider...

1. If you move the mass (rim & tire weight) further from the center of rotation, it requires more energy (tq) to rotate that object; ie. polar moment of inertia

2. With less mass to decelerate, your car will stop faster with resistance equal.

3. You can increase you gear ratio with a smaller tire diameter.

4. Turn-in can be improved with tire width and aspect.

 

When I went from 15 to 16" I noticed a slightly slower 1-3k RPM acceleration but the rest felt the same. It's possible that my stock 15's were slipping a bit from 1-3k though.

 

I had 16" wheels and I'm switiching to 14" HX wheels....mainly so I can get better tires for much cheaper...and they are lighter than my old wheels.

 

You can always go w/ a 15"x7" wheel.. so you could have all the positive aspects of a 15" wheel w/ the increased traction. If you are someone that goes through tires quickly, remember that 15" tires are pretty damn cheap, and the prices for 16" only gets higher and higher.

 

i wouldnt say he is going to lose any "HP" with bigger wheels...they will just be heavier and slow him down a little bit, hardly noticable.