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Maximum Rims/wheels size on 930s...??

Hi PPMs,

What's the maximum size for wheels, rims and tires for a 930SE / 88...?

And what are outer and inner sizes for BBS rims....?

I found, checking on mine 5.5 x 17 outer and 7 inner for rear...I need those infos before ordering....

Thanks to you all.....

Serge

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Old 12-05-2007, 01:42 AM
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The biggest I can fit on my car are 9.5" front and 11.5" rear in 17".
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Old 12-05-2007, 03:02 AM
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Those are AWESOME Serge!!!!!
very nice!!!


David,
We can fit meat that big under the 79 930s?? DAY-UM!! nice!
Old 12-05-2007, 04:51 AM
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Thanks David ? (125Shifter).....I found 12.5" wide rear, only compairing with the 10" and the 285/30/18 I had before......?

My goal is to fit 315/35/17 big tires...so...I need 12 or 12.5" rims wide.....?

Does someone try to fit such tires with the wide stock body...?

Yes Rory...that'll do it for the 935/76....
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Old 12-05-2007, 12:16 PM
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Stock 930 flares will house 9.5&12x17 max dependant upon tire choice.
275/315 combo is also considered max for street with stock suspension settings.
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Old 12-05-2007, 12:52 PM
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I can fit a 12 or maybe 12.5 on the right side, but I don't see how I could go bigger than 11.5 on the left.
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Old 12-05-2007, 01:47 PM
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Quote:
Originally Posted by 125shifter View Post
I can fit a 12 or maybe 12.5 on the right side, but I don't see how I could go bigger than 11.5 on the left.
Ok and why...?....on the right, there's the oil tank.....and left....wastegate...?...
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Old 12-05-2007, 01:55 PM
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Quote:
Originally Posted by 935TURBO View Post
Ok and why...?....on the right, there's the oil tank.....and left....wastegate...?...
My fenders aren't even and it sounds like most of the 930 fenders aren't even especially before 1986 since they're were welded on to 911 fenders. It's very possible that another 930 has room for 12 or 12.5 on both sides.
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Old 12-05-2007, 02:54 PM
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275/315 is whoppin' huge - esp on the front
What I have -
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Old 12-05-2007, 04:03 PM
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David can you play with your spacing and get 12" on the driver's side?
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Old 12-05-2007, 06:03 PM
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Quote:
Originally Posted by 125shifter View Post
My fenders aren't even and it sounds like most of the 930 fenders aren't even especially before 1986 since they're were welded on to 911 fenders. It's very possible that another 930 has room for 12 or 12.5 on both sides.
PLEASE, elaborate. I have this issue and I've been thinking that I have a bent strut on the passenger side.
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Old 12-05-2007, 06:06 PM
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Mine aren't even either so I modified the passenger's side to match the driver's side. 12's will go on both sides now no problem.
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'78 911SC Widebody, 930 engine, 915 Tranny, K27, SC Cams, RL8 Headers & GT3 Muffler. 350whp @ 0.75bar
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Old 12-05-2007, 07:43 PM
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Quote:
Originally Posted by RarlyL8 View Post
David can you play with your spacing and get 12" on the driver's side?
I'm about as close to fender as I can be. I could roll the fender and get maybe 1/8" to 1/4" more. On the inside, I was so close to one of the adjusting bolts that I ground it down to make sure it wouldn't rub the tire. Since it's a tire rub issue and not a wheel issue, I guess I could go to 12" wheels since that would only widen the tire by .1 to .2 inches.
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Old 12-06-2007, 03:03 AM
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Real 930's vary due to the flares hand welding process; but regardless, 275x315x17 on 9 & 11 wheels should fit with the proper backspacing. Beyond that is nobody's land...
Old 12-06-2007, 01:06 PM
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Hmm- During my dyno runs, my drivers side rear rubbed when the car was cinched down, and the passenger side didn't. This might explain why. I run 315's.
Old 12-06-2007, 01:20 PM
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Were the front flares welded on the same as the rears?
Old 12-06-2007, 01:24 PM
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Serge - Remember I posted up the same wheels as you. The rears were 17x12 and stuck out about 2" too much on a test fit. The halves were 5.5 inner/6.5 outer. Fronts were about 1" too wide and they were 5.0 inner/4.0 outer. I suspect I could go .5" more to the interior of the rear so a 6.0 inner would work, but it will get really close to the oil line. I never really looked closely at the fronts, but using the stock spacer is a must. Without it, the wheels hit the brake caliper.
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Old 12-06-2007, 01:24 PM
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Dyno run with 315s:
http://home.comcast.net/~craigcarolann/trackvideos/930_November_11_2006_dyno_009.mpg
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Old 12-06-2007, 01:29 PM
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Quote:
Originally Posted by WPOZZZ View Post
Serge - Remember I posted up the same wheels as you. The rears were 17x12 and stuck out about 2" too much on a test fit. The halves were 5.5 inner/6.5 outer. Fronts were about 1" too wide and they were 5.0 inner/4.0 outer. I suspect I could go .5" more to the interior of the rear so a 6.0 inner would work, but it will get really close to the oil line. I never really looked closely at the fronts, but using the stock spacer is a must. Without it, the wheels hit the brake caliper.
Thanks Bryan...yes my question is mainly for the rear (17" rims).....and specially for outers.....I found 5.5" maximum.....and I need to fit 315 tyres...so, I need 6" inners minimum, isn't it..?.....

For the front (16"rims), with my 996TT brakes, I can only have 3.5 outers.....and anyway, as the tyres are 225, 8" rims are enough...so I got 8x16" BBS rims...and, that'll be OK....but really limit...as follow....

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Old 12-06-2007, 01:45 PM
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That is TIGHT!!!!!
Old 12-06-2007, 02:02 PM
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