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18x11 ET 45 Narrow Body Fitment

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28 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

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YOUR RESEARCH18x11 ET 45 Narrow Body Fitment

Leading reported evidence

Run very aggressive negative camber

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Suggestion

It'll never be flush, but you could get the top to tuck if you lowered it and ran a very aggressive negative camber...

18x11 ET 45 Narrow Body Fitment
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Leading evidence: 'Run very aggressive negative camber' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run very aggressive negative camber' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Use offset calculator

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
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Unsuccessful attempts
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Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

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Suggestion

My suggestion is to figure out your stock wheel spec, use the offset calculator from the previous post and see what the new estimated positions would be with the new wheel specs.

18x11 ET 45 Narrow Body Fitment
Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Run very aggressive negative camber

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

It'll never be flush, but you could get the top to tuck if you lowered it and ran a very aggressive negative camber...

18x11 ET 45 Narrow Body Fitment

Use offset calculator

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

My suggestion is to figure out your stock wheel spec, use the offset calculator from the previous post and see what the new estimated positions would be with the new wheel specs.

18x11 ET 45 Narrow Body Fitment
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28 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

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POST 1 / ORIGINAL POSTEROriginal post

Looking at new wheels for my 99 c2, I found a set that I'm being told will fit my car but I'm a little skeptical. Rears are 18x11 ET 45 with 295 30r18 tires. Seeing mixed messages on some older forum posts, some saying it fits no problem, some saying fenders need to be rolled, some saying add camber, some saying no chance at all. Has anyone run this on their car, and have pictures of how it looks? I haven't rolled fenders before and would prefer to avoid this, but if the fitment looks OK I may be OK with it. Don't want any camber.

POST 2Original post

Nevermind, I was confused for a bit...these wheels will not fit the narrow body, the narrow body wheels will fit the widebody. with 17mm spacers and longer bolts

POST 3 / ORIGINAL POSTEROriginal post

I may be thinking of this incorrectly, but if the stock wheels are 63mm offset and I'm going to a 45mm offset doesn't that mean the wheels are sticking out further, and adding spacers would be adding to the issue?

POST 4Original post

I don't think they will fit, stock is 18x10 et65, these 18x11et45 would be 32.5mm further out, others might have different experiences, but based on the 15mm spacers at the back of my last and current 996 with 18x10 et65, I don't think there is enough room for another 17.5mm.

POST 5Original post

I have 18x11 wheels with 63mm offset and a 5mm spacer (making the offset 58mm) with 295/30-18 tires on my '02 narrow body, and I don't think I could reduce the offset any more without rubbing on the fenders. My fenders are somewhat rolled and I have -2 degrees of camber in the rear. I would think that you wouldn't be able to fit those wheels without significant rubbing

POST 6Original post

Nevermind, I was confused for a bit...these wheels will not fit the narrow body, the narrow body wheels will fit the widebody. with 17mm spacers and longer bolts A higher "positive offset" means the wheels are sitting closer to the center of the car........all Porsche wheels have positive offsets...

POST 7Original post

Quotes source post: 19354148

That is correct! My stock wheels are et65 rears and et50 front. I added 15mm spacer in the rear & 10mm in the front and the wheels are almost flush with the wheel wells. So technically as they sit today the rear is 50mm & front 40mm. So your et45 will stick out 5 mm more in the rear.

POST 8 / ORIGINAL POSTEROriginal post

Quotes source post: 19354309

Do you have a picture of what this looks like on your car? Did you have to roll your wheel wells?

POST 9Original post

Quotes source post: 19354309

Except the wheels he is talking about are 11 inches wide, so 5mm +12.7mm (1/2 inch) = 17.7mm

POST 10Original post

No, it won't fit. It'll be 18mm further out than the commonly accepted reasonable limit for adding a 15mm spacer to the OEM 10" (+65mm offset, effectively 50mm with spacer) wheels. https://www.1010tires.com/Tools/Wheel-Offset-Calculator

POST 11Original post

Fitting is relative to your car's set up. Are you lowering it? If so, by how much? What kind of tires are you going to run? Size, section with, and side wall shape all differ among different brand and model tires. My suggestion is to figure out your stock wheel spec, use the offset calculator from the previous post and see what the new estimated positions would be with the new wheel specs. Then go outside to your car, place a straight edge against your rear quarter panel fender lip so the straight edge is pointed downward and then take a measuring tape or ruler and measure how much space you have from your tire/wheel lip to the first straight edge. This will give you a better idea how much room you have and what won't or will work. Good luck and let us know how it goes!

POST 12Original post

I have 18x11 +45 on my narrowbody. they fit very flush with the fender not my car, but same fitment

POST 13 / ORIGINAL POSTEROriginal post

Quotes source post: 19356661

do you know the tire width?

POST 15Original post

It helps to see that it's been done. How much camber did you need for your car? Post a side shot if you can.

POST 16Original post

11 x 18 45mm offset rear rims fit the 4s model summer tires (295/30).

POST 17Original post

Here is a .2 C2 at X74 height and alignment(-1.6deg rear camber) with 18x11 ET63 wheels with 295/30 tires on the back. The ET45 wheel will stick out 18mm further from this point.

POST 19 / ORIGINAL POSTEROriginal post

Got the car out of storage. I don�t see how it is possible to get these flush with the body, it�s a long ways off� anyone in the market for some new wide body wheels??

POST 20Original post

Quotes source posts: 19354227, 19393945

Yep, as I stated.. but you are always allowed to FAAFO.....

POST 21Original post

Quotes source post: 19393970

FAAFO took me a minute that�s great lol

POST 22Original post

Quotes source post: 19393945

/ Those don't look like 18x11 +45. mine sit flush with the fender on my c2 and they are stock c4s wheels. my 295 also dont have nearly that much stretch

POST 23Original post

Quotes source post: 19393945

It'll never be flush, but you could get the top to tuck if you lowered it and ran a very aggressive negative camber...

POST 24Original post

here�s my car with 18x11 +45 and 295/30 this is with no camber. Still need to lower and align the car.

POST 25Original post

Quotes source post: 19394038

This happened to a '67 Chevy Impala I had in high school. Car didn't feel right, looked out the rear view mirror and saw the wheel hanging out there.

POST 26Original post

Quotes source posts: 19394038, 19395705

[Image-only post; no author-written text. Original image references:] https://rennlist.com/forums/images/smilies/biggrin.gif https://imagizer.imageshack.com/v2/800x600q70/924/TstduE.jpg

POST 27Original post

Quotes source post: 19395705

That is remarkable. Hard to understand why it is so different from the other car posted above. Is there that much difference from one car to another?

POST 28Original post

Quotes source post: 19393945

I don't think you specified but that looks like an aftermarket wheel. Is it possible that you were told the incorrect specs? Are there any markings on the backside of the wheels that indicate the size and offset? Usually, the size of the wheel, ie 18x11, and the offset, ie ET45, would be stamped on the backside of the spokes.

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