The motors currently in the shop once everything's all together I'm going to be making 500-550whp. I currently have 17x9 rpf1s out back with new 255 hankook ventus v12s I was leaning toward putting toyo r888 on my stock ap1 wheels and running them I know id get a hell of alot more traction but just want to see what you guys think? I know a lot of you guys run 255s on stock ap1 rears I personally think its way to much tire to put on a 7.5 inch rim and was considering maybe running the 245s r888s. Anywho just looking for some opinions hopefully I should be part of the turbo fam within the next few months
-Chris

 

I wanted to run 275s but decided against it imma gonna run 255s on a 8" rim...im look at the bfgood rich G-force t/a kdw

 

I ran R888 on the track. They're HORRIBLE for daily driving if that's what you're thinking. They'll heat cycle out right away and be trash. Are you talking for track only?

255 is 8.5" rim minimum. I wouldn't even consider more than a 235 on a 7.5" rim.

I wanted to run 305's and I'm going to run 275s as daily drivers and 295 in R compounds for track day only usage. No reason to run more rubber than that in general. I've got a 800hp built motor but I'll be running it at more like 550hp.

So first and foremost are you tracking this car? What kind of usage will it be getting? Then we can better answer your questions/needs.

-Greg

 

All street I've heard of a few people running rcomps on the street have had good success. I deffinately agree with you about putting 255 on a 7.5 inch rim is way to small but it can be done and I've seen a lot of guys that goto the track squeeze em

 

It's deff not a daily but like I said only street use

 

nitto nt 01 275/40zr17, problem solved

 

All of the people you talked to are fail.

Don't even consider it for street use.

I've done it for fun it doesn't work! R comps are made to work in a range of 180-200 degrees or so, that never happens on the street thus they offer less traction than a tire that could have lasted twice as long. It's just pissing away money at that point. There's also a limited number of heat cycles even if you do run it hard on the street it'll still end up getting rock hard before it's worn out.

7.5" can be done so could a 6.5....the problem with both is the handling is compromised due to the improper sidewall angle, traction is also greatly compromised because the footprint is improper. Also R888's need -2.5 or more of camber MINIMUM, making them ridiculous for daily driving in terms of wear in that manner too.

You'd be better off with a quality street tire rather than a competition tire. For example:

NT05 would be better than an NT01 for what you're speaking of. Plus both are much cheaper than a R888. I'll be running NT05's on my street setup unless I run an even more wet friendly tire since I'm moving to Seattle now.

-Greg

 

Good advice as far as bang for the buck, except he said street use.... so it'll never hit 190 degrees and if it does, he shouldn't be driving like that on public roads, that's childish and irresponsible IMO. I have fun in canyons and such but there's a point that we should draw the line to keep this place seperate from honda-tech.

Though I agree, 275 NT01 is a great rear setup, I'll be tracking with it a bit.

-Greg

 

Toyo ra1 or nitto 555r2. I run the ra1 and it's fine for the street. I have 13k miles on the fronts and then have so much thread left. Rears are at half thread. Downside is as they wear they become rain unfriendly.

Honestly though if u wanna put down a lot of horsepower u have to make sacrifices.

 

Why are you giving out advice like this?

Firstly the RA1 is a the R888 now, except a few sizes such as the Miata spec class.

It's not "fine" for the street. It's an under-performing tire on the street. You've got 13k on them because you've heat cycled them out and now they're way to hard and thus lasting longer. Half tread at 13,000 miles? So you figure they should last 26,000 miles????? I burn a set of R888's up on the track in 2 days and probably a total of a couple hundred miles.

They're horrible in the rain even when new because AGAIN they work well only in the 180-200*F temp range because they're R compounds, they're designed to shed heat quickly as well which will make it hard to keep them hot. They provide worse traction than a street tire when operated too cold.

If you want to put down a lot of horsepower you have to make intelligent decisions, rather than pretending you have a F1 car on the road.

-Greg