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How To: Fitting 315-50-17 Tires Without Spacers

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Bboyd

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#21
nice job..... what else was done to that car? :unsure:
 

Stl376

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#22
View attachment 12791 I still can’t take a hammer to my car, my 315/50-17’s will just see track duty and I doubt anyone is going to notice 12 mm of extra stick out from the spacers I made so they don’t rub the rib. Nice write up though
Nice! How big are those? 12mm? make them yourself?
 

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#23
View attachment 12791 View attachment 12792 View attachment 12793 View attachment 12794 View attachment 12795 I still can’t take a hammer to my car, my 315/50-17’s will just see track duty and I doubt anyone is going to notice 12 mm of extra stick out from the spacers I made so they don’t rub the rib. Nice write up though
Do you have any side pictures to see how much it's poking out? I can't justify a hammer to my car as of yet either, but I'd like to run 315s too!
 

16GoManGoHC2

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#24
Started with 11 mm, they rubbed when cornering and upon being aired down to 18 psi in straight line so made another set at 14 mm. I drew the sketch, machine shop buddy made them for me. He’s making another set now for a member, $160 shipped. Could probably get him to make more but need to know quick.

F5B43446-F31C-4C82-A2DA-767748C3391B.jpeg 13BFD89E-5EE1-4694-9A59-C7D11A7F492D.jpeg 444757F4-CB4F-4E79-8AF7-E651745759DF.png 58A65D85-7BD0-4F61-B841-60B9E1782CEF.jpeg
 

16GoManGoHC2

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#25
Would Not exactly be pretty on the street but I don’t plan on ever running them on the street. Veteran track guy told me to just run them on the track, get them seasoned with track prep and not run them any where else, not even back and forth to the track for best performance and longest life. Going to try that this season
 

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#26
no offence but I think I would want to use the hammer.
 

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#27
Just a heads up you might have to get longer studs. I was gonna try 8mm before the hammer & my shop said I would need longer studs especially for drag racing.
Maybe look into it for safety and so nothing goes wrong at the track.
Cheers looks awesome!
 

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#28
Would Not exactly be pretty on the street but I don’t plan on ever running them on the street. Veteran track guy told me to just run them on the track, get them seasoned with track prep and not run them any where else, not even back and forth to the track for best performance and longest life. Going to try that this season
Yeah I drive my ET Rs on the street sometimes, and my OCD would drive me crazy with that much tire poke. One day I'll just have to man up and grab the hammer! I have these exact same wheels too. They are a 10.5 wide with 27 offset IIRC. I might switch to a 10" wide wheel with a 30 offset (Weld/Forgestar), I think they might help with the 315 better. Less hammering maybe, lol.

Thanks for the pics!
 

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#29
@Micah-OST Dyno

Is that rib the only thing in the way of fitting 315/50s? Those are Darkstars which are 9.5 inches wide, that enough wheel for a 315 tire? I'm running the racestar recluse wheels which are 10.5 wide with a 27 offset. Not sure if I'd have to hammer more or not. I know others have hammered and ran welds (10" wide 30 offset), just not sure from wheel to wheel how much of a difference it makes, especially how much more hammering might be required.

I take it removing that plastic section is a must (since the rib is in that area)?

You recommend any specific hammer for this job?

You have any side profile pics of tire poke if any?

Thanks for sharing the pics! I really want to fit 15s, just not too crazy about hammering, lol.
 

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#30
no offence but I think I would want to use the hammer.
Non taken, like said, I wouldn’t run them on the street this way, don’t like the “stick out” look myself, but before I get the hammer out I want to be sure they do for me what I want, I’d hate to hammer my car and regret the reason afterwards.
 

16GoManGoHC2

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#31
35C494E8-7A3E-4C8C-8DC6-9E2445E6BBA1.jpeg
Just a heads up you might have to get longer studs. I was gonna try 8mm before the hammer & my shop said I would need longer studs especially for drag racing.
Maybe look into it for safety and so nothing goes wrong at the track.
Cheers looks awesome!
Good point, Yes, longer studs are required, I upgraded to ARP studs cut to a custom length so I could use stock rims as well with OEM looking deeper nuts or open ended nuts at the track if needed, have ARP nuts as well.
 


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