[kev604]

215 40 on a 8.5 +40 wouldn't be meaty at all would it

Nope anything 40 profile is definitely not meaty.

 

[kev604]

Whenever I get some free time I'll have to test fit some 18x11's wrapped in 275/35's on my Si.

Would love to see a pic of that one what offset lol.

 

[kev604]

Here it is

Look good what are the specs on your rims to run that tire setup?

 

[kev604]

Im wondering what is a good wheel size and offset for a meaty look on my 9thgen. Im currently stock height but will be getting bc coils. i was thinking either 17x8.5 et45 or 17x9.5 et18. What you guys think would be a much better choice?

17x9.5 offset 18 your wheels are going to be ridiculously wide and stick out way past the fenders, will probably look stupid.

 

[kev604]

I thinking its different for manufacturers. Something. I poke more with my 17x8.5 + 30 then you do with your 17x9 +30. Kind of weird.

I think also the style of the wheel will slightly affect fitment and sizing. Just like not all 215/45 tires will fit the same some will fit smallish and some will fit large.

 

[kev604]

Looking to pick up a set of wheels and curious to see what will be most functional and prefer a meaty non stretch out tire. I am running on Tein Street Advance and their set on the lowest setting.

Here's what im stuck on
Esr Sr02 17x8.5 +30
Str 514 17x9 +20

Wanting to run a 235/40 I do not want to roll my fenders. Help!!!! Lol

Here's my Fb6

Honestly on both setups with that drop on 235 tires without fender roll your going to rub just a matter of one being worse than the other.

 

[kev604]

The back looks lower then the front


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I have HFP suspension and my back is lower than the front, looks wise it isn't the best but performance wise it makes sense since our cars are FWD the weight distribution is biased to the front so you need some more clearance there especially if driving spirited.

 

[kev604]

Would an 18x9 using stock 225/40/18 be too stretched?
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Yes.

Should run a minimum 235 wide tire on a 9inch wheel for proper fitment.

 

[kev604]

I was listening to the guy who previously said 235 was proper fitment. But you're right, I used the will it fit website and the stock 225 40 on a 9" wheel doesn't even affect the speedo ... What to do??


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Minimum recommended tire width is 235 on a 9inch wide wheel, yes you can run 225 heck you can run 215 tire if you wanted to but just because it mounts doesn't mean it's correct.
Tyre Size for Rim Size/Width Calculator - What's the best tyre size for my rim?

 

[kev604]

some examples
Tyrestretch.com 9.0-225-40-R18

It's stretched pretty good, looks like the stock 215s on my 8inch wide wheels. I hate the stretch going to be replacing those 215 tires soon.

Also keep in mind not all tires fit the same, some brands fit bigger some fit smaller. The guy I know at the tire and wheel shop told me Goodyear's and BF Goodrich fit the biggest.

 

[kev604]

Anyone sporting 235/45/17's on the stock 17' Si wheel?

Too wide for the stock 7 inch wheels and will probably end up having a negative effect on performance being the tires are too wide for those wheels.

 

[kev604]

Are these meaty? 17x8 +45 235 45 17 View attachment 402266


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No rubbing with those tires?

 

[kev604]

Alright guys I bought 17x9 +35 offset and I want a meaty setup. I was looking at 245/40s I'm lowered on D2 springs, and I want something to fit without really rolling the fenders. I want function and beefy setup, I'm also boosted so any ideas on tires that are super sticky and great fro daily?

Your going to rub all day with that wheel and tire setup without atleast a fender roll. Also stock 12/13 Si wheels are 17x7 so you won't be able to fit a tire any wider than 225 on that wheel.

 

[kev604]

Is it an inch drop or half?

It's about 1inch although the rears seem to drop slightly more.

 

[kev604]

Yes, close to an inch. I know that's not trendy, but I like how it looks.

People tell me all the time on FB that I need to drop my car. lol

Function > Form. Slamming your car isn't ideal for performance not to mention the car will ride like crap.
I also like the drop of the HFP perfect match of performance and still daily driver friendly.

 

[kev604]

This is going to sound stupid, but I can't figure out what PSI my new tires are supposed to be set at. Everything I find online is the max pressure.

Do I use 32 PSI as suggested on our door sill?

You can go 32PSI but I wouldn't daily drive it any lower than that I run 34PSI on my summer and winter tires year round and that seems to be a happy median for me. You can play around a little bit with it and see what feels best for you but I probably wouldn't suggest going lower than 32PSI or any higher than 36PSI.

 

[kev604]

If you have a stock or similar to stock suspension, I'd go with 32psi as the door will recommends. I would assume the recommended tire pressure has more to do with the car's design rather than the tire itself. Someone correct me if I'm wrong.


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Also has to do with the stock tire specs.

 

[kev604]

17x9 +35 235/40 ... i didn't think 235 would stretch that much.

Depends on the brand of tire, not every 235 tire fits the same.

 

[kev604]

Anyone know if you can fit a BBK with that low offset on a 17x9?

Flat face RPF1's may not fit best to test fit first. Bubble face style RPF1's should fit.

 

[kev604]

Looks good man.