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Wheel size and offset for 20mm oversized fenders on an FD?

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Old Jan 21, 2006 | 01:11 AM
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Wheel size and offset for 20mm oversized fenders on an FD?

I am going to order some new wheels/tires for my FD. I will be running 20mm oversized fenders front and back and I am planning to run 18" wheels w/ coilovers. I am also going to have to be able to clear a big brake kit for later on down the road. For now, just the stock setup.

I am just wondering what size wheel and offset I should run to make the wheels/tires fill the body lines up properly. I am debating 18x10f and 18x11r...but I am open to any suggestions.

I also haven't decided which wheels I want to run, but whatever I choose it will be a 3pc wheel so I can order the offset and everything to my specs.

Thanks,
Scott
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Old Jan 21, 2006 | 02:41 AM
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rynberg's Avatar
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Doesn't necessarily have to be a 3-piece wheel to get custom sizing/offsets.

For 20mm wider fenders, I would run

front: 18x10 +40 (give a little more clearance) with 285/30s.
rear: 18x11 +35 to +40 (should clear trailing arms) with 305/30s

They won't be flush, but should have good clearance while still filling out the wells decently.
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Old Jan 21, 2006 | 11:55 AM
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Are you trying to stretch tire? or Do a max tire fitment for Grip?

Rishie
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Old Jan 21, 2006 | 12:07 PM
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Cool. Thanks for the input. I ran +38mm 18x9 Volks on my last FD w/ the 30mm oversized FEED fenders and they fit pretty good. I just wasn't sure what to run on this one.

- Scott
Attached Thumbnails Wheel size and offset for 20mm oversized fenders on an FD?-motionspecial1.jpg  
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Old Jan 21, 2006 | 12:12 PM
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Originally Posted by ARD T2
Are you trying to stretch tire? or Do a max tire fitment for Grip?

Rishie
I have not decided on what tires to run or what size. I have track wheels/tires already, so I am just looking for a decent street setup. Something I can have some fun with, not too aggressive, but something I can race on just in case, both for backroads and straight line.

I just got a cover feature on my last FD for an upcoming March issue and really want to do something better this time around...so I am open to my suggestions on wheels/tires. Offsets and sizes. I am going to be running the 20mm oversized Burnout fenders on the car. Custom silver paint job, just need wheels to accent well and tires to perform well. I also need to get a suspension setup that will be good for both track and street. I had Tein Flex on the last one, I will never run those again personally.
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Old Jan 21, 2006 | 01:18 PM
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you could do something sweet like 18x10 +30 all the way around or 18x9 +15 all the way around
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Old Jan 21, 2006 | 09:20 PM
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what about for 18x9's in the front w/ the 18x10's in the back?
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Old Jan 21, 2006 | 10:00 PM
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That is what I ran before...I have no problem with that. I just am curious to know what offset I should run with each size of wheel.
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Old Jan 22, 2006 | 04:57 AM
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Originally Posted by lane_change
I have not decided on what tires to run or what size. I have track wheels/tires already, so I am just looking for a decent street setup. Something I can have some fun with, not too aggressive, but something I can race on just in case, both for backroads and straight line.

some good tires are the goodyear egle f1 gs-d3. i read some mag either road and track or car and driver and they said tha the goodyears are definetly one of the best performing street tires!
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Old Jan 23, 2006 | 02:05 AM
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a guy from another from has these flares



and to fill the flares he got 19X10.5 +12 REAR and 19X9 + 18 FRONT
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Old Jan 23, 2006 | 10:10 AM
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Wow....that is a low offset compared to what I am hearing on here. Do you have any more pics of that car? From the front, back, side, etc..? How wide are those fenders, or do you know?

Thanks.
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Old Jan 23, 2006 | 12:20 PM
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Because you can run a 10.5" +45 wheel on the FD with rolled fenders and trailing links, there's no reason why you can't run the same on these fenders in a lower offset. In fact you should be able to run approx an 11.5" wide wheel with say something like a 295/30/18 because it will stretch the tire a little.

Now for the front, 10" is max, i figure you can probably run 11.0" up there if you want max width.

I think for a "cool" and different look you might want to go for 9.5" front and 10.5" rear, or go with the 305 size tire that was recommended as well.

I think the approach to take now is to pick a wheel design you like, and from there we can see how wide the wheel can get. Based on that we can come up with a fitment to retain the neutral balance of the vehicle.

Rishie
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Old Jan 23, 2006 | 09:30 PM
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i will try and dig up more pics... the car is insane though
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Old Jan 24, 2006 | 12:24 AM
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Originally Posted by ARD T2
I think the approach to take now is to pick a wheel design you like, and from there we can see how wide the wheel can get. Based on that we can come up with a fitment to retain the neutral balance of the vehicle.

Rishie
not to hi jack the thread but i have a quick question, what would be the best wheel and tire size for the gram lights 57 pros in an 18" diameter?
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Old Jan 24, 2006 | 01:04 AM
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s wide and as low offset as you are crazy enought to get.

fit the car to the wheels not the other way around
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Old Jan 30, 2006 | 07:38 AM
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From: rocky mount,nc
Hey Scott, I'm going the same route as you. The burnouts are really sweet. Not to hijack but whats the widest non-staggered setup running said flares?

mike
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Old Feb 2, 2006 | 03:43 PM
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I am running an 18x10 f/r setup w/ a +24mm offset. We'll see how they fit once the kit arrives and gets installed.
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Old Feb 2, 2006 | 05:33 PM
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rynberg's Avatar
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Originally Posted by lane_change
I am running an 18x10 f/r setup w/ a +24mm offset. We'll see how they fit once the kit arrives and gets installed.
Eeesh. I don't think you are going to clear up front.
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Old Feb 3, 2006 | 09:26 AM
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Where do you think I might have a problem clearing up front? The fenders? I was going to run with +30mm offset, since alot of FD guys run +50mm offsets of 18x10's with stock body, so I figured w/ a 20mm oversized body, I could mathematically drop 20mm off the offset and clear perfect. But +30mm were going to have to be ordered from Advan and take who knows how long....and Mackin had a set of the same wheels, color, bolt pattern, in a +24mm in stock....and since the fenders are now glass, I figured I could sand the inner lips down if I had to.

KS- Auto claims you can run a +9mm wheel.....but that just seems far fetched to me. Unless you are running a stretched 235 tire with a ton of negative camber.
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Old Feb 3, 2006 | 09:54 AM
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I run 18x10 50mm offset up front with stock rolled fenders.
http://www.negative-camber.org/crispyrx7/kinesis.htm
The key to note is that although these wheels clear (barely) everywhere (I do get some minor rub at hard lock) simply adding the extra 20mm of offset because you have the 20mm wider fenders (I seriously contemplated those burnout fenders also ) does not mean you will have the 20mm extra clearence everywhere else. Might mean that you won't rub the fender lips with the wheels pointed straight ahead but I can tell you that as you turn the front wheels with my setup the outside edge of the tire just misses the front fender liner - talking a mm or so. Now move that wheel 20mm further out and it most likely the tire will rub the fender liner (if you use one that is) both on the front side and the backside.
My input,
Crispy
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Old Feb 7, 2006 | 11:34 AM
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Originally Posted by lane_change
Where do you think I might have a problem clearing up front? The fenders? I was going to run with +30mm offset, since alot of FD guys run +50mm offsets of 18x10's with stock body, so I figured w/ a 20mm oversized body, I could mathematically drop 20mm off the offset and clear perfect. But +30mm were going to have to be ordered from Advan and take who knows how long....and Mackin had a set of the same wheels, color, bolt pattern, in a +24mm in stock....and since the fenders are now glass, I figured I could sand the inner lips down if I had to.

KS- Auto claims you can run a +9mm wheel.....but that just seems far fetched to me. Unless you are running a stretched 235 tire with a ton of negative camber.
The +9 on KS Auto's site is for a 18x9 wheel, and an 18x9 +9 sits differently then a 18x10 +9. In terms of front spacing, an 18x9 +9 is about the same as an 18x10 +22. If you are using 18x10 +24, you could always consider using a narrower tire to give you a little more room if it looks like it's close.

This guys has 18x10 +25 with his FEED fenders, and looks like tires on the narrow side for that rim (my guess is 265/35?, maybe even 255/35 - try PMing him):

https://www.rx7club.com/3rd-generation-specific-1993-2002-16/last-pics-cryin-502154/
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Old Feb 14, 2006 | 07:34 AM
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From: rocky mount,nc
Well I won't get my burnout parts until after you guys (I missed the group buy) so that will give the rest of you time to figure it out.

mike
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