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Join Date: Mar 2014
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Lets see impact cars with 15" wheels

It's has been said that going to 15" wheels can give a car a little more seat of the pants acceleration... wondering if those who have change notice any performance improvement,

Also wondering how the beefier looks sets with the impact cars that seem to run 16's more often.

Thanks for indulging all my silly questions.
Old 08-23-2018, 04:54 PM
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74 911, #3
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Old 08-23-2018, 06:22 PM
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And there you have it. One single solitary car still runs 15s. Thanks for stopping by.
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Rick S, '71 914 3.0, '82 911SC EFI, R Gruppe #309
Old 08-23-2018, 06:26 PM
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Jeff
74 911, #3
I do not disbelieve in anything. I start from the premise that everything is true until proved false. Everything is possible.
Old 08-23-2018, 06:26 PM
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My bad. There are two cars in the whole world unless they are changing colors using Photochop. Thanks for stopping by.
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Rick S, '71 914 3.0, '82 911SC EFI, R Gruppe #309

Last edited by RSBob; 08-23-2018 at 06:41 PM..
Old 08-23-2018, 06:36 PM
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It's how I roll.



205 50 on 6X15 ATS front
225 50 on 7X15 911R style rear
Pirelli P Zero Trofeo R
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http://forums.pelicanparts.com/porsche-911-technical-forum/878569-born-75-me-my-new-911s.html

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Old 08-23-2018, 07:12 PM
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And three...

That looks effing fantastic!
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Old 08-23-2018, 07:15 PM
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Both real RS cars here. Yellow one got side graphics the next day.
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74 911, #3
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Old 08-23-2018, 07:22 PM
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205/50-15 all around for track day, sixes and sevens



Yeah, not gonna run goofy 16-18 inch wheel on RS cars or real RSR. Tires for the RSR come from England folded in a box. Always worry a bit while mounting them on the magnesium center lock rims...
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74 911, #3
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Old 08-23-2018, 07:34 PM
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225/45 all around on 7s and 8s
Autocrossed for years on this setup
Last weekend 3rd out of 60 cars, fastest of all Porsches
Old 08-23-2018, 07:58 PM
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1973 911 T Coupe #1891 (Gemini Blue)
Old 08-23-2018, 08:23 PM
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Old 08-23-2018, 09:12 PM
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Send a message via AIM to fintstone
Street Sleeper, that looks stock but is tastefully upgraded (IMHO) with 7x15s, factory 7:31, dialed in, upgraded suspension (turbo tie rods and bigger torsion rods/sways, Konis) hotrod 3.0 with 9.5 JE Pistons/Mahle cyl.,20/21 WebCams, 39mm intake and 38mm exhaust ports, SSIs, and early SS muffler, early CIS w/no smog, oxygen sensor, etc. Basicallly a '78 top end and and 81 bottom end. Very fast and reliable combination in a light car. Certainly quicker than my 3.2 and bulletproof., etc...and of course, '74 sport seats, S-brakes, fatty wheel, LED lights, optima, high torque starter, hard oil lines, cooler and fan from an '89, etc.



Same car with 6x15 wheels.

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Old 08-23-2018, 09:15 PM
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15 x 6 and 15 x 7 1974 US Carrera
15 x 7 and 15 x 8 1976 Carrera 3.0

Last edited by nathanbs; 08-24-2018 at 06:22 AM..
Old 08-23-2018, 10:16 PM
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7/8 with Troefo R 205/50 & 225/50

Old 08-23-2018, 11:31 PM
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I', running 16x7 and 16x8 225 and 245 just wondering what advantage there would be to change, and how they would look....

Love the look, as I would like to push the feel of the car toward a more vintage feel.
Old 08-24-2018, 03:50 AM
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ironically my car is no longer impact nor 15". it looked good while it was though...

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Old 08-24-2018, 04:35 AM
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15's

I don't run em all the time but I have a set thats between tires right now (225 50 15 4x on 7"/8" so can be moved for wear). With my low car and living in the mountains its a bit inconvenient scraping the pavement on speed humps and transitions with them on. Fun at the track.
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Old 08-24-2018, 04:46 AM
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Hereís mine on 6ís and 7ís
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Old 08-24-2018, 05:06 AM
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Nice color Lake Guy.

205/60/15 tires all the way around.


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Old 08-24-2018, 05:28 AM
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