I'v decided to go with the Toyo T1-S this spring and would like to install them on my stock Ray rims. My problem is that Toyo does not seem to make a 45 aspect ratio tire.

Has anyone tryed a 40 series tire? and if so, does it create too much of a problem with the speedo? Also does it create a noticably huge gap between the fender and tire?

I would also like some feed-back on tire widths. Would a 245 up front create excessive "tram lineing" (my camaro with 275 was all over the road). I believe a 275 would work just fine on the rears, a little "over kill" however.

Thanks, CS track

 

You can't (shouldn't) put a 275 on an 8.5" rim. I've got printouts in front of me for both the T1-S and S-03s and the recommended smallest rim for both tires is 9". If you do, you should have a ton of sidewall flex in the 275 and it will roll over on itself in hard cornering.

As to your other question, yes a 40 profile will look a bit funny on 18s without a drop. I've seen the 235/40 and 255/40 S-03s on stock 18s and they look rather smallish.

 

advice taken......thanks

 

I have looked hard at this same thing as I got a set of Track model Rays and the only solution is S03's, an option I was looking at that would not change things much and are OK on this diameter wheels is to go with a 245/40/18 in front and 255/40/18. Although if you look at the 17's and 18's on the different models they differ from each other to begin with.

Using an online calculator it said that if I went with the above combination comparing it to a 17" setup the car would be going 69.41 mph in the 18" setup when it would have been going 70 in the original 17" setup. But if you compare it to the 18 original setup the car will go 68.3 MPH instead of 70 in the original 18" setup. So it looks like Nissan has variations to begin with unless they calibrate each model differently depending on wheel setup (I doubt it)

Another option is 235/45/18 in front and 255/45/18 in back, this compared to original 18" setup would only increase your speed by less than 1 MPH and the difference is the same in both front and back so your ABS/TCS/VDC systems should be OK. And with the higher speed you will get to 60 MPH quicker

I think either of these options are good if you are looking for some additional tread width, but also consider that the S03's even at the same 225 & 245 as original equipment have more tread width than the RE040's by about 1 1/4 of inch if you go with 255 you will get an additional 0.4" tread width so you will have 1 2/3" additional tread width per tire or over 2 inches total hitting the pavement.

 

Good info Westpac. If I'm truly set on the T1-s, I could go with the 245/45 18 up front and 255/45 18 on the rear (found toyo's web site) without any adverse effects I presume.

I hate to admit that I'm so shallow but the stock Potenza is a pretty fugly tire, what with the rim protector and all.

Now I must decide if I really want to spend a grand (more I'm sure if I go with my local Les schwab) for better looking tires, with the added bonus of better handleing of course.

 

Les Schwab is damned expensive for T1-S's. They quoted me $375 each for 275/40/18's and $298 each for 245/40/18's.

I decided to order my T1-S's from Tread Depot and save about $500.

My new wheels and tires should both come in this week, I'm planning to get them mounted at Speedware Motorsports in Redmond.

Not sure where you're located in WA but I'd recommend you take a look at Tire Rack. Punch in your Zip and search for a local installer.

 

I also like the T1-S (just from what I've heard; I've never used them myself).

I'll be going with 245/40-18 in front and 255/45-18 in back.

I'm looking mostly for better balance, and I need everything to fit on the stock Performance rims, so that's why I won't be doing anything bigger in back than the 255.

-D'oh!

 

toyo does make a 245/45/18 tire and a 255/45/18 im alittle unfimiliar with the rays o.e. wheels for your car...are they 18's?what is your outside roll diameter?btw T1-S for those with deep pockets concider the RA-1

 

I went for that size, the Rays are 18 inches and 8" wide in front and 8.5" in back so they will accept these sizes just fine, they are a little bigger than stock in diameter but should be alright, I am going from the 17's and these sizes go up in diameter the same amount in front and back so it should not affect any of the unknowns like ABS or TCS the only thing it will affect is the speedo by 2 MPH but the difference from 17's to stock 18's is already 1 MPH so Nissan already has a play built in.

 

Did you go with Toyos or S-03s. I've got that pair of 255/45/18 S-03s w/less than 800 miles on them that I'll give you a deal on if interested.

 

Thanks but I went with the Toyo's, from looking at all numbers and comments from car guys I figured the Toyo's will be an improvement from what I have plus they should last longer than the S03's.

 

I have ordered from tire Rack before and though a great deal, the local tire guys charge me dearly for mounting a tire not purchased at there store (especially stiff walled performance tires). Regardless, at a $500 saveings I'll be ordering from tread depot, and Les Schwab can kiss my a**.

It seems that with the toyo T1-S my only real choice and still retain the stock Ray's (which I definetly would do) are 245/45 18 ft and 255/45 18 rear. There will be a slightly larger rolling diamater (and resistance unfortunatly) with this set up, but nothing that should adversly effect anything.


CS Track

 

Why not 245/40/18? The diameter is nearly the same as 225/45/18.

 

You are right, the 40 profile is closer and is just a little smaller than stock while the 45 is a bigger than stock, so I figured what the hell go with the bigger tire fill in the wheel well a little more and you get a little faster (by 2 mph @ 70) anything to help the 0-60 time that should get me 0.001 reduction in time For me it was easy because I am going from 17's so the increase is almost identical in front and back going with the 245/255 combo. They should be here tomorrow!!!

 

275/40-18 is the same diameter and ht as the 245/40-18, one guy I talked with said to try to maintain a .6 of an inch ht differance with back slightly higher.
I am going with Iforged 9 inch up front and 10 out back with 245/40 front and 275/40 rear. the Tire Rack delivered price to my house was 915 bucks for the SO3's.
Ran the SO3's last year in Open Road races and they where great, rated to 186 mph, handled and wore well, ran quiet too.
John
Former High Speed Cobra driver

 

Westpac.....that may be the same set up I will go with. Please share your experience and post a good profile pic if you can.

thanks

 

Hmmm interesting. Why .6" between the front and rear height?

 

.6 is what the car has now in stock form. I also tried 265 vs 275 last season and the speedo was off less than 1 mph at 165. I ran a legal radar test at 165 on the speedo and they had 164 on the radar, not enough to worry about.
John
Former High Speed Cobra driver

 

I think it is more like .7 but anyway that is on the 18 inch wheels on the 17 inch wheels it is more like .4 so you see that even Nissan has some play in it. I think that as long as you keep this difference relatively close to stock, and we can see that we can at least go from .4 to .7 difference so a little out of these probably wont have an affect and the only worry is speedo differences.

 

Westpac........I just ordered up some Toyo T1-S myself, same size. However its going to take a week or so for them to get here.

Do you know if these tires come with a rim-protector like the stock potenza's? I'm hopeing they don't.

And, whats this about different size tires affecting VDC. Haveing the brakes come on for no good reason could really ruin my day.




CS track