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^^^ i had 245/40 on my 18x10 +22 in the rear and the tire would hit the rear bumper tab.
for the front i tried a 225/40 and it rubbed too.
I RECOMMEND front 18x9 215/35 rear 18x10 235/40

i have 18x9 +24 215/40 and it rubs at my height. 18x10 +22 235/40 no rubbing
with equal stretch front & back
I call for Vertex Front Fenders then go with a 215/40 front.
Rear would need to be pulled out and you can use a 235/40 but still the rear bumper tab would be your only issue after that.
You think going up to +30 would help? I'm gonna search around some more to see if I can find some better offsets but if all else fails I could go with a front and rear spacer. While I like the Vertex fenders, definitely not enough money in my pockets for those.
 

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i dont know how to play the what will and wont work but i have no money to do anything.

I can only offer suggestions on what would work but if you dont have the funds to do so i cant help..

I have a 2 jobs and have a steady income so everything i "want" i save for and get.
 

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Ok trying to nail out the final details of the new setup.

Looking for an Aggressive fitment; here are the specs:

Front:
18x9 +20

Rear:
18x10 +20

I have a Front and Rear Rotora BBK (6 piston fronts and 4 piston rears). As well my rear fender lips have been trimmed down to the edge. I don't have any issues with getting working on the fender liners and am willing to do what I need to get this project going. I am on coils and am dropped pretty low as well.

My last issue is I would like to have a little meat on the rears. Stretching a 225 on a 10 is not what I'm looking to do. If a 255 was possible I'd be happy. I'm currently on a 19x10 with a 275 tire.
ill show you how to do a 18x10+20 on a 265/35 when everything gets finished. it comes down to what tire you throw on as you get closer to the fender...
 

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i dont know how to play the what will and wont work but i have no money to do anything.

I can only offer suggestions on what would work but if you dont have the funds to do so i cant help..

I have a 2 jobs and have a steady income so everything i "want" i save for and get.
Sorry that I'm a full time student with a part time job. Don't judge what you know nothing about. I'll leave it at that.


There are a lot of cars on here with aggressive wheels that don't have aftermarket Vertex fenders. Which is why I'm trying to see if adding a spacer would help. If you can't help, just say so.

Anyone that does care to help would be greatly appreciated.
 

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Discussion Starter #25 (Edited)
Sorry that I'm a full time student with a part time job. Don't judge what you know nothing about. I'll leave it at that.


There are a lot of cars on here with aggressive wheels that don't have aftermarket Vertex fenders. Which is why I'm trying to see if adding a spacer would help. If you can't help, just say so.

Anyone that does care to help would be greatly appreciated.
Alright... Time to relax. Nobody is judging in here. He simply made a true statement about the depth of one's pockets in regards to the amount of work needing to be done, etc. I'm a full time student w/ a part time job as well, so let's not throw around that commentary like it's a debilitating disease. Everyone can save money, it just depends on your choices.


Anyways. My only problem with running a 235/40 tire is that it's a HUGE sidewall. Like... gargantuan. 50% of the time, you would rub in the rear simply from the height of the tire (which is nearly an inch taller than stock). And for the front, a 215/40/18 is the same size as stock, 25". So to step down to a 215/35/18 is retarded. You'd have nearly 2" of a difference in sidewall height front and rear. If you want your IS300 to look like a funny car, then go for it. LOL

I would step to a +30 offset with the 18x10. Check out my post up top. I'm running an 18x10+33 and a 245/35/18. I have about 2mm of fender clearance at my ride height, so all you would have to do is pull your fenders a tad bit more than 10mm, run -3* of camber in the rear, and you'd be set with a 245/35. You'd still have a decent amount of traction, and it looks killer.

I'm positive 18x9/10+30 would make you happy. Past that, it's a lot of trial and error, and rubbing. Not sure if you're ready for that yet considering you still want *some* traction.
 

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Alright... Time to relax. Nobody is judging in here. He simply made a true statement about the depth of one's pockets in regards to the amount of work needing to be done, etc. I'm a full time student w/ a part time job as well, so let's not throw around that commentary like it's a debilitating disease. Everyone can save money, it just depends on your choices.


Anyways. My only problem with running a 235/40 tire is that it's a HUGE sidewall. Like... gargantuan. 50% of the time, you would rub in the rear simply from the height of the tire (which is nearly an inch taller than stock). And for the front, a 215/40/18 is the same size as stock, 25". So to step down to a 215/35/18 is retarded. You'd have nearly 2" of a difference in sidewall height front and rear. If you want your IS300 to look like a funny car, then go for it. LOL

I would step to a +30 offset with the 18x10. Check out my post up top. I'm running an 18x10+33 and a 245/35/18. I have about 2mm of fender clearance at my ride height, so all you would have to do is pull your fenders a tad bit more than 10mm, run -3* of camber in the rear, and you'd be set with a 245/35. You'd still have a decent amount of traction, and it looks killer.

I'm positive 18x9/10+30 would make you happy. Past that, it's a lot of trial and error, and rubbing. Not sure if you're ready for that yet considering you still want *some* traction.
Thanks Twestman...I figured the +20 was a little low to want to have a meatier tire. I'll look around for the +30 offsets for the rear. I think I'll see if I can find someone in my area to do some test fitting as well. I'm in no rush to get this done, especially since my motor is apart right now and I'm waiting on other exterior pieces to get here. But I figured now is as good a time as any to get some info together so when I do pull the trigger it'll quick and painless.
 

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SSR Professor MS1
Front:
18x8 +17 (+37 with a 20mm Spacer)
215/40/18

Rolled/pulled fenders.
Remold liners.
-1.7camber

My suggestion, go 8.5 +23 with a 215/40/18 or 9 +29 with a 215/40/18 for the same fitment but more stretch. Or run more negative camber. I still rub the fenders sometimes.

Rear
18x9 +27 (+37 with a 10mm Spacer)
235/40/18

Roll/pull fenders
Trim bumper/bumper tab.
Remold rear liner.
-1.5* camber

My recommendation, 225/40/18. Period.
Or 9.5 +33 or 10 +38. Either one with a 245/35/18.
Do not run a 235/40/18 in the rear. It's too tall.

Also, you most likely won't get this alignment with stock parts. I am running Cusco Front Upper A arms for more adjustment for negative camber in the front, and Figs Mega Arms (rear lower control arms) for more adjustment in the rear. I HIGHLY recommend both, and I will be buying a lot more of Figs suspension pieces.

I might have a new mod for the rear bumper tabs in the next few days too... I've got it set in my head, I just need to look at it first.





 

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Just to reiterate for the members who can't read the original post of the thread:

Rule #6: No B/S! This is not the PL. (aka no unnecessary commentary)

Thanks!

Btw, Philly might run into issues with mounting tab with larger than a 255... Maybe that's why? Just a thought.
 

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^Agreed

Just to reiterate for the members who can't read the original post of the thread:

Rule #6: No B/S! This is not the PL. (aka no unnecessary commentary)

Thanks!

Btw, Philly might run into issues with mounting tab with larger than a 255... Maybe that's why? Just a thought.
true but im pretty sure hes past the point of bumper tab bothering him...? i believe he did something about it cant remember what though.
 

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ENKEI RPF1
F: 18x9+25 (+35 w/ 10mm spacer) - 215/40/18
R: 18x10+33 (+38 w/ 5mm spacer) - 245/35/18

http://i5.photobucket.com/albums/y178/travis_westman/IMG_0006.jpg
http://i5.photobucket.com/albums/y178/travis_westman/IMG_0008.jpg
http://i5.photobucket.com/albums/y178/travis_westman/PS Lexus Pics/4181228466_deed421fd5_o.jpg
http://i5.photobucket.com/albums/y178/travis_westman/IMG_0015.jpg

Camber:
-3* R
-2.25* F

Toe:
0 F
0 R

Front:
-Rolled using a ball hammer. Completely flat. Pulled about 5mm.
-Cut out 1/3 of the fender liners near the outside fender.

Rear:
-Roll flat with fender roller.
-Flared fenders 10-15mm with fender roller.
-Trim the bumper tab.
-Cut off half the plastic bumper tab cover.
-File down 1/3" off the inside lip of the bumper (which is basically just a continuation of the fender lip).

Just wanted to say thanks for creating this thread. This will be my next set up just different wheels and my rears will be a +30 instead of +33. Now just to decide on the color. Bronze is in the front running for now.Thanks again.
 

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Discussion Starter #37
Just wanted to say thanks for creating this thread. This will be my next set up just different wheels and my rears will be a +30 instead of +33. Now just to decide on the color. Bronze is in the front running for now.Thanks again.
No problem! I made this thread hoping that it would (greatly) help other members and it's encouraging to see that it is (somewhat)!

Of course I couldn't have done it without the other participating members in this thread, so some credit goes to them as well ;)
 

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prolly because its slammed and no kit...kits make wheels look smaller
 
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