18x10 & 18x12 or 18x9 & 18x11?

[randy]

ok ive been reading non stop and i still dont have the right answer.
link http://www.pro-touring.com/showthrea...7-camaro/page2
link https://lateral-g.net/forums/show...t=30824&page=6 camaro
dse mini tubbed
rear end 54.75" ford 9"
front dse hydroformed subframe
kore3 zo6 brake setup
Car is not painted. Can modify inner fenders or outter lip if need be
I was under the impression that i was going to run a 18x10 and 18x12 combo. 275/35/18 & 335/30/18 but im told it will rub. Well where will it rub?
Im not against running a 315/30/18 25.58" on the rear and a 275/35/18 25.44" tire on the front. this setup actually sounds nicely balanced
What should i run? what backspacing? what problems will i have? Can i get this look? something close to it?

Im looking for a semi tucked looks. like the following

[XLexusTech]

Hey I am looking for the exact same Intel... like look of car II and III.. tucked and wide...

Before I order the parts I want to get advise... for me I am going DSE F and R and haven't ordered a rear yet... \\

[Ringbrothers]

You should have no problem running those sizes I would run a 19'' wheel in the rear if you want that tucked look it will be easier and theres a way better tire selection in 19's. Call me if you want a price were a forgeline and h.r.e dealer. Telly (608)588-7399

[67zo6Camaro]

I know it can be tuff getting that final fit and look. But you do have one advantage over most.... your car has not been painted yet and you can adjust were needed.

Basically all combos will eventually rub depending on how low you want the ride and how hard you plan to push the suspension under load. I would just start with the combo that is "The Look" you want, then adjust the wheel wells as needed.

An 18x10 and 18x12 is a good starting point, as most tire sizes we are currently running will ask for a wider rim. Exp... 275 wants a 9.5 rim and you could push it to a 295 on a 10 wide rim. As for the back.. the 11" wide rim is good for most 305 to 325 set ups but if you have the room to run the wider stuff like a 315 to a 335 then the 12 in wide rim is more in the range of the tire manufactures spec. The manufactures base the rim width on how the tire will shape when put on that size rim. Try to stay within their specs.

So bottom line here get the bigger rim set and do some mock up without the coil-overs in. Push the suspension all the way through the motion cycle and make adjustements in the inner wheel wells as needed.

One other thing, looking at most of the big name builds (Tuckers, Finch, Penny, OLC....) they have all had some type of rubbing during extreme driving conditions. Typically they will make adjustments in the Coil-over height depending on the track conditions expected.

Just keep in mind you have the advantage of makeing the clearance now (before paint) in order to get the look and tire size you want.

Thats my 2 cents.

(edit) just my opinion, if you go to the 19" tall rim, then you add the issue of needing more wheel well clearance as you lower the car. However if you are not concerned as much with the low-ness and are going more for the tire tucking look then it's not as much as a big deal (the 19" will require more work to get low and have travel clearance under extreme driving conditions).

[randy]

Originally Posted by qwkswede

Thanks guys.
The 255mm max width on the front is disappointing. I talked to the guys at DSE, Apparently the problem is not rubbing on the subframe, but rubbing on the outer fender lip when the tire rotates around. The inner edge of the tire swings toward the outer fender as you turn the wheels. Thats how it was explained to me. I guess its a problem with the 67-68 shaped fenders. The 69s have longer openings, and more room for bigger tires.

Here is the wheel combo recommended by DSE:
18x11 rear, 5" b.s. with a 315/35/18
18x9 front, 6.125" b.s. with 255/35/18

noticed this on another thread

[randy]

Originally Posted by 67zo6Camaro

I know it can be tuff getting that final fit and look. But you do have one advantage over most.... your car has not been painted yet and you can adjust were needed.

Basically all combos will eventually rub depending on how low you want the ride and how hard you plan to push the suspension under load. I would just start with the combo that is "The Look" you want, then adjust the wheel wells as needed.

An 18x10 and 18x12 is a good starting point, as most tire sizes we are currently running will ask for a wider rim. Exp... 275 wants a 9.5 rim and you could push it to a 295 on a 10 wide rim. As for the back.. the 11" wide rim is good for most 305 to 325 set ups but if you have the room to run the wider stuff like a 315 to a 335 then the 12 in wide rim is more in the range of the tire manufactures spec. The manufactures base the rim width on how the tire will shape when put on that size rim. Try to stay within their specs.

So bottom line here get the bigger rim set and do some mock up without the coil-overs in. Push the suspension all the way through the motion cycle and make adjustements in the inner wheel wells as needed.

One other thing, looking at most of the big name builds (Tuckers, Finch, Penny, OLC....) they have all had some type of rubbing during extreme driving conditions. Typically they will make adjustments in the Coil-over height depending on the track conditions expected.

Just keep in mind you have the advantage of makeing the clearance now (before paint) in order to get the look and tire size you want.

Thats my 2 cents.

(edit) just my opinion, if you go to the 19" tall rim, then you add the issue of needing more wheel well clearance as you lower the car. However if you are not concerned as much with the low-ness and are going more for the tire tucking look then it's not as much as a big deal (the 19" will require more work to get low and have travel clearance under extreme driving conditions).

Thank you very much for taking the time to write this. I just feel that i would have more "options" with a 18" wheel. ride height, tire options, etc Lets say i put the 18s on with 335/30/18 and it rubs i can easily switch to a 315/30/18 to bring the tire in some to gain some extra clearance. Nice thing about being a store manager of NTB is that i can order whatever options i want lol

sounds like your leaning towards the 18x10 and 18x12 rim selection and try to run the 275/35/18 and 335/30/18 and if that doesnt work switch to a 315/30/18 in the rear. Now what about backspacing?

[James OLC]

Originally Posted by randy

ok ive been reading non stop and i still dont have the right answer.

Im looking for a semi tucked looks. like the following

Wow - been a while

Your best bet will be to call DSE directly and ask - they know better than anybody what will work (particularly on the front) and what won't. if you run a 275 you don't really need to run a 10" (which I think might be tight), a 9.5 should be (is) fine.

One argument in favor of 19's in the back is that it gives you a bunch better tire selection. With current Corvette's using a 275/35-18 and 325/30-19 combo you are guaranteed a good selection - plus you have the alternative of a 305/30-19 (which is the same size as a 315-18 in most cases). Some larger sizes in 18s are getting harder to find as fewer cars run them and most "new" tires favor more common "current" sizes (i.e. Michelin Pilot Super Sports).

Just my two bits. Again - I would call DSE for their input.

[randy]

well i measured and the results were 14.5" at 12 oclock from inner fender to outer fender portion. I imagine i could cut off 1/4" atleast if needed.

if a 275/35/18 tire is really made for a 18x9.5 like the corvette im fine with that. I doubt that .5 will make any difference.

[Matt@BOS]

My car is a '69 with everything from DSE and sits relatively low.

To get it to not hit the fenders we had to modify the inner fenders for more clearance and roll the fender lips between 10 and 2 o'clock. Around town, and under hard driving there is zero rubbing, however, I do occasionally hit the tire against the frame, but just barely. This is only at full lock with 275s on a 9" rim. With the '67 and '68 I think it would be very difficult to pull of the stance you want with any normal amount of steering. The only '67-'68s I know of that are low and have 275s have very limited steering, and still occasionally rub, although aftermarket/highly modified frames, not DSE frames.

Matt

[suark]

I went with 275 & 335 18's on 18x9 and 18x11.5 wheels, I don't have it on the road yet but it appears to have plenty of clearance. I too was torn whether to run 18's or 19's in the rear but was afraid I'd have clearance issues and I thought the 19's were a hair too big looking.