235 in rear, or 255 up front

And then lowered on PSS-9’s

http://www.zhpmafia.com/forums/attac...5&d=1407671004

I been wanting 19" Apex arc8 since Bruce said they are a great fit.

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Originally Posted by cornercarver

Something in your numbers doesn't seem right - not that I'm challenging you. Just trying to understand fitments because I'm hoping to buy a set of Sportline 8s' next year and want to make sure I get the right sizes/offsets.

If the OEM rear offset with a 18x8.5 wheel is ET50, why would you move the new 18x8.5 wheel outboard with an ET38 offset? I checked mine and saw at least 1/2" clear between the tire and the shock. Moving a 8.5" wheel out by 12mm seems unnecessary if it's the same width as stock, especially if you've gone down in tire size to a 245. If you were increasing the width of the wheel to, say, 9.5", THEN you'd need to move it outboard to keep it in the same relative position to the shock. Seems like there's also plenty of space between the tire and fender lip to move it out 1/2" without rubbing.

What am I missing? If you were rubbing with a wider wheel and a 275, then I'd understand.

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going to a lower offset wheel, say ET38, increases the track width by 24mm.

and i run the 3mm spacer on the back to bring the square wheel setup offsets 'in line' with the stock ratio (so i effectively have increased track width in the rear by 30mm, and 30mm in the front).

in a perfect world i would run 9's or 9.5's in the rear on a 265/35/18, and one day i might, but i would have to run the 18x9.5 ET58 ARC-8s to avoid running into fender clearance issues... but then i might have shock clearance issues, so i'd likely need to run a 10mm spacer... i haven't measured yet. i do run into traction problems with the 245's in the rear, especially with the LSD, because it makes me do stupid stuff. otherwise 245-width PSS' are totally adequate for 235hp. :)

Quote:

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Originally Posted by slater

going to a lower offset wheel, say ET38, increases the track width by 24mm.

and i run the 3mm spacer on the back to bring the square wheel setup offsets 'in line' with the stock ratio (so i effectively have increased track width in the rear by 30mm, and 30mm in the front).

in a perfect world i would run 9's or 9.5's in the rear on a 265/35/18, and one day i might, but i would have to run the 18x9.5 ET58 ARC-8s to avoid running into fender clearance issues... but then i might have shock clearance issues, so i'd likely need to run a 10mm spacer... i haven't measured yet. i do run into traction problems with the 245's in the rear, especially with the LSD, because it makes me do stupid stuff. otherwise 245-width PSS' are totally adequate for 235hp. :)

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Got it.:thumbsup

I hope to do the LSD eventually... Just not in the budget now though. With the recent Hotchkis F&R bar upgrades I can break the rear loose with a little throttle, so I think an LSD and some wider rubber (275mm) in the rear will round the car out nicely. The trick will be getting the right combination of offset and fender rolling to make it work. I predict a 9.5" wheel at ET38 should clear the shock and fender with a little fender rolling. This is on a non-lowered vehicle, of course.

Quote:

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Originally Posted by cornercarver

Got it.:thumbsup

I hope to do the LSD eventually... Just not in the budget now though. With the recent Hotchkis F&R bar upgrades I can break the rear loose with a little throttle, so I think an LSD and some wider rubber (275mm) in the rear will round the car out nicely. The trick will be getting the right combination of offset and fender rolling to make it work. I predict a 9.5" wheel at ET38 should clear the shock and fender with a little fender rolling. This is on a non-lowered vehicle, of course.

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on a non-lowered vehicle, i think a 9.5" ET38 wheel would stick out past the fender. i think. :) that said, it's an incredibly aggressive fitment, lowered or not - and mega fender rolling would be required. i am going to be doing some very minor fender rolling to allow my 8.5" ET35 wheels to fit without rubbing - imagining another 12.5mm with wider rubber sticking out... no way would it work (for me). :)

Sorry - don’t know why I wrote ET38. I meant ET45 for a 9.5” wheel in the back.

Here's another dude that pulled off the 18x9.5 et35 nicely by rolling the rear fenders and trimming the plastic tab:

http://www.zhpmafia.com/forums/showt...-Timeless-quot

a little pokey in the front but not bad

https://farm2.staticflickr.com/1630/...20b4a1be_b.jpg

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Originally Posted by ZHPizza

Here's another dude that pulled off the 18x9.5 et35 nicely by rolling the rear fenders and trimming the plastic tab:

http://www.zhpmafia.com/forums/showt...-Timeless-quot

a little pokey in the front but not bad

https://farm2.staticflickr.com/1630/...20b4a1be_b.jpg

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yep, he was running 235's if i remember correctly. and flattened the inner rear fender lip? what's the point of going to a 9.5" wheel, other than looking cool, if you're running less rubber? it does look cool - for sure. but definitely form over function... and that kind of setup is not for me. ;)

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Originally Posted by slater

yep, he was running 235's if i remember correctly. and flattened the inner rear fender lip? what's the point of going to a 9.5" wheel, other than looking cool, if you're running less rubber? it does look cool - for sure. but definitely form over function... and that kind of setup is not for me. ;)

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I actually prefer it for the sidewall stability!

I have a 235 on a 9.0" wheel now, but since it's a pretty wide tread tire, there's little to no stretch. I like a small stretch so that I can use a softer sidewall tire for highway comfort and still have a stable sidewall for cornering. I'd definitely like to put these same tires on a 9.5" wheel.

As far as I recall, the only way to get the concave look with the Apex Arc8 was to run the 9.5" width wheels with an et35. And a 235 section tire provided enough clearance with the fenders rolled/pulled/cut.

Now apex offers the arc8 in a 18x9 et30 with a concave face but even with that size you still have to do some work to make them fit and not rub.