Anyone running toyo R8's?

Kevv_Si

Kevv_Si

Well-Known Member
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Indianapolis
Vehicle Model
Si
Body Style
FB6
Anyone here rocking this setup?...these are the tires I'm planning on ordering but don't know what size I should run. These are going on my rpf1's
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Specs on the rpf1's? You want meaty functional...stretching tire? Everyone will tell you something different. Depends on what you want.
 
How wide of a wheel are you going to be getting? That will make some difference to width. The r888 starts being available in a 235/40/17. Which is a great tire size all around.

Also.... Are those going to be track day only tires? They have a utqg of 100 which means you won't even be able to autox with them as the new rules require I believe a 240 rating.

If not, you are going to kill those tires very very quickly. Also there are many many reviews out there stating that the tires are not very good in the wet. If you run into heavy rain you may have some issues.

There are lots of tires in the extreme performance category that are a great tire for dry grip, will last a bit longer, and aren't as sketchy in variable conditions if they are going to be your everyday tires.


If this is going to be your main set of driving tires I would point you towards the Michelin Pilot Super Sports, the Dunlop Direzza Z2, or the Bridgestone RE-11A tires. None of those are very good in the wet but are better than the r888 and will last quite a bit longer. Also all these tires are pretty bad once the temp gets to 40 and below. I would make sure and have a dedicated winter setup as well.

Unless you are making huge power I don't think you would need the stickiness of the r888. The above tires should give you plenty of grip. They wear out fast enough as it is that if you do end up with a massive turbo setup and 500+hp you can get a stickier wider set in short order.
 
Nix said:
How wide of a wheel are you going to be getting? That will make some difference to width. The r888 starts being available in a 235/40/17. Which is a great tire size all around.

Also.... Are those going to be track day only tires? They have a utqg of 100 which means you won't even be able to autox with them as the new rules require I believe a 240 rating.

If not, you are going to kill those tires very very quickly. Also there are many many reviews out there stating that the tires are not very good in the wet. If you run into heavy rain you may have some issues.

There are lots of tires in the extreme performance category that are a great tire for dry grip, will last a bit longer, and aren't as sketchy in variable conditions if they are going to be your everyday tires.


If this is going to be your main set of driving tires I would point you towards the Michelin Pilot Super Sports, the Dunlop Direzza Z2, or the Bridgestone RE-11A tires. None of those are very good in the wet but are better than the r888 and will last quite a bit longer. Also all these tires are pretty bad once the temp gets to 40 and below. I would make sure and have a dedicated winter setup as well.

Unless you are making huge power I don't think you would need the stickiness of the r888. The above tires should give you plenty of grip. They wear out fast enough as it is that if you do end up with a massive turbo setup and 500+hp you can get a stickier wider set in short order.
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Yeah these will be strictly for drag/daily...I'm just looking for something that looks meaty and good for grip. I honestly don't know crap about tire size wheel size etc ..this is all new to me (first build) what I can say is that the rpf1 will be " 17
 
Drag/daily is not a good combo. A good drag tire will die being driven everyday. Honestly, look into the extreme performance category tires. I think you will be very disappointed with the toyoR888s anywhere but the race track. They are an R compound.

In anything from a 7.5" to a 9" wide wheel a 235 will fit very nicely. A 235/40 is an ideal tire size for performance on the civic. It has a slightly shorter sidewall than stock while providing a larger contact patch.
 
Nix said:
Drag/daily is not a good combo. A good drag tire will die being driven everyday. Honestly, look into the extreme performance category tires. I think you will be very disappointed with the toyoR888s anywhere but the race track. They are an R compound.

In anything from a 7.5" to a 9" wide wheel a 235 will fit very nicely. A 235/40 is an ideal tire size for performance on the civic. It has a slightly shorter sidewall than stock while providing a larger contact patch.
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I really like those Dunlop tires that you mentioned, what would be the best rim size/tire match you recommend and I will do more research on it.
 
RPF1's look totally different in a 9" width than any other size. If that's the wheel you want make sure you understand the change in appearance.

If you really want a set of wheels for going to the drag strip, a set of really lightweight 16's than can barely clear the calipers are your best bet. That said,

I know most people see the RPF1 in a 9" width and love the way the wheel looks. If this is going to be your only set of wheels and you are going to DD them, then you should get some that will look the way you want and function well at the same time. The offset of the wheel will need a little bit of research and keep in mind that any of the extreme performance category tires run much wider than stated. Almost a full size.

Is your car lowered or going to be lowered? You may end up needing to do fender work in the future if the combined wide wheel, tire, and lowness all come together. If you get a +35 offset wheel you will most likely rub the fender. In a +45 you may end up rubbing the strut on the inside. So, a 3mm spacer can be run safely on the stock studs and thereby provide technically a +42 offset wheel. I'm still uncertain of whether an extreme series 235 tire will rub inside or outside.


A performance alignment can make a huge difference as well so if there is slight rubbing and you do not want to do any fender work sometimes running just a little extra camber, I'm talking -2 degrees MAX, could help everything fit very nicely. I would consult the wheel fitment chart thread and see what you can dig up in there and also get a look at the RPF1 threads and make sure you get what you want.

I think that probably what you want is a 17x9" wheel and a 235/40/17 tire. That's a great combo and should provide plenty of grip with a proper tire, Z2 or otherwise.



EDIT: I see you're in Indy. Im not too far away in Louisville. Worst case scenario is you rub a lot and if you need help with fender work I have a roller and we could definitely meet up sometime when the weather is a bit warmer.
 
Nix said:
RPF1's look totally different in a 9" width than any other size. If that's the wheel you want make sure you understand the change in appearance.

If you really want a set of wheels for going to the drag strip, a set of really lightweight 16's than can barely clear the calipers are your best bet. That said,

I know most people see the RPF1 in a 9" width and love the way the wheel looks. If this is going to be your only set of wheels and you are going to DD them, then you should get some that will look the way you want and function well at the same time. The offset of the wheel will need a little bit of research and keep in mind that any of the extreme performance category tires run much wider than stated. Almost a full size.

Is your car lowered or going to be lowered? You may end up needing to do fender work in the future if the combined wide wheel, tire, and lowness all come together. If you get a +35 offset wheel you will most likely rub the fender. In a +45 you may end up rubbing the strut on the inside. So, a 3mm spacer can be run safely on the stock studs and thereby provide technically a +42 offset wheel. I'm still uncertain of whether an extreme series 235 tire will rub inside or outside.


A performance alignment can make a huge difference as well so if there is slight rubbing and you do not want to do any fender work sometimes running just a little extra camber, I'm talking -2 degrees MAX, could help everything fit very nicely. I would consult the wheel fitment chart thread and see what you can dig up in there and also get a look at the RPF1 threads and make sure you get what you want.

I think that probably what you want is a 17x9" wheel and a 235/40/17 tire. That's a great combo and should provide plenty of grip with a proper tire, Z2 or otherwise.



EDIT: I see you're in Indy. Im not too far away in Louisville. Worst case scenario is you rub a lot and if you need help with fender work I have a roller and we could definitely meet up sometime when the weather is a bit warmer.
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That's awsome , really appreciate your replies I'm hoping I don't have to do any fender work but the 17x9 I think is what I will go with. We should deffinately get together in the spring. Not that many 9th gens here :(
 
You're gonna need fender work when running 17x9 regardless of what you do. I have 17x9 +22 rpf1s and I had to roll my fenders since it spaces out a lot. Or say, sits closer to the fender.
 
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there are people who have +35/+38 on 9" who said they don't rub & didn't roll their fenders.
 
Man I really don't want to mess with my fenders like that BUT that's the risk I guess I have to take if I want to run meaty tires.
 
It can be done without doing any damage/cracking.
 
Lol, yeah dude. Like I said in earlier in this thread, you're only in Indy. If you need help Id be happy to drive up and give you a hand with some rollin' and shaving. Im driving to Chicago at some point this spring to help 323 with his fenders. Could make a weekend of it for sure.
 
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