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Oh, and I forgot that the main point of this topic was to reduce unsprung weight! -
So, the wheels in question come with 255 tyres from factory but I guess semi's are usually a bit fatter, maybe that's too much for an 8.5. I'm currently running 245 front and 265 rear with Federal 595's on my 19's. There are no OE square setups so to run square I either buy 2 sets of OE wheels or get an aftermarket set. I was thinking about the OE 17's I have because I already have one set (17x8, 17x8.5) and you can get another set for under $500. I do have another set of the same 19's (I have a bit of a wheel problem) so I could put together a 19x9 square setup but I'm conscious of the cost of semi's this size. 255 square on the 19's would be pretty cool though.
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I might be the only guy to be able to go back to the dyno like: -
Hopefully more pedal gives more powah! Boo to paint jail, I want dyno comparisons! -
By Murray_Calavera · Posted
Sounds good. Might be worth double checking what size rim the tyres you are running want. Generally I'd expect to see a 235 tyre on a 8.5 rim. Any possibility of an easy to source OEM 9.5 wide rim? Also with the thoughts of the square setup, I'd still say wider is going to be better. Say your currently on 235 front and 255 rear. Going to square 255 will be better. But say you could fit, 255 front and 275 rear, that will be better again. In hypothetical land there might be a world where you go so wide that performance starts to go backwards, but I don't think you'll ever bump into that situation in real life.
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