Just want some expert evaluation on Tire/Rim combo.

[Oreopride18]

I'm deciding to plan out what *exactly* I want when I buy these in a month or two. This is pretty much a 19 year old (hopefully with a starting IT job in 8 months *crosses fingers*) Here is what I'm shooting for:

Tires:

Kumho ECSTA KH11
Size 225/55WR17

My ideal rims on a budget:

Rota Sub Zero
17x7.5"
5x114.3
+45mm (I believe) offset; but the webpage leads it to look like +48mm for the 17's

Should this work out well? I'm trying to get a decent setup for track use that won't become completely destroyed if I hit a pothole.

 

[91 NT Eclipse]

I don't see why that wouldn't work. Also, you'll need 225/45/17 tires to keep the speedo right.

 

[Oreopride18]

Thanks.

But wouldn't the 55's be more beneficial than the 45's as far as drag launching is conserned? I guess I should have stated that I want this car to be a decent dragster and an equally good autocrosser (I'm letting it lose it's SCCA virginity in 3 weeks when I take it out to Pcola )

 

[90 AWD]

Originally posted by Oreopride18
Thanks.

But wouldn't the 55's be more beneficial than the 45's as far as drag launching is conserned?

More sidewall means more flex better launching, but with that size tire the speedo will be off by 7-8 MPH. With todays technology in tires you can get almost the same launching abilities of a bigger sidewall in the 45's. Plus with that high of a sidewall it might rub too.

205/55 16 112.75 overall diameter in MM
225/55 17 123.75 "" 11 mm taller
225/45 17 101.25 ""


To keep the same overall diameter get 225/45's.

 

[swordfish]

On that 7.5" rim you can go much wider than a 225.

jeff

 

[Oreopride18]

On the 7.5" rim what would be a good mm size to go with?

Basically ?/45/17. What would you reccomend for the "?"

Thanks guys; keep the replies coming.

 

[90 AWD]

if you want wider go 235/45.... be aware though.. that wide of a wheel and tire be sure to get the correct offset and backspacing though. Or it will rub.