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18"x10" 996TT wheels on front?

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Old 09-26-2005, 12:08 AM
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vanwyk4257
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Default 18"x10" 996TT wheels on front?

Has anyone successfully fit a 996 18x10" wheel with 65mm offset to the front of their 928 with a 265/35R18 tire? I fit my 17x9 cup wheels with 255/40R17's and 55mm offset on the front and they protrude just a bit. I'm wondering if the extra 10mm in offset will be enough to fit the 18x10's if I roll or flare the wheel opening slightly. The car is at stock ride height I believe. I will occasionally track this car at DE's so I don't want to go too large and have rubbing issues, but I'm concerned that 225/40s up front and 265/35's out back will lend to more understeer. I've already searched and read many of the posts, I'm just looking for some additional comments on this thought. My car is a 1983 928S with a 5-speed. The paint job on the car is less than perfect so I'm not opposed to carefully stretching/flaring the front wheel openings if it will work. Thanks!
Old 09-26-2005, 04:41 AM
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drnick
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its a good question but i dont know if anyone is running more than 9.5" rims on the front.
Old 09-26-2005, 02:31 PM
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Fastest928
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I am running 12" with slicks on the front with stock fenders .... just have bit limited turning radius!

Marc
Old 09-26-2005, 02:51 PM
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blau928
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They fit, but you may need a spacer to clear the brake caliper.... I know they fit in 32V cars with a 6.5mm spacer..

HTH,
Old 09-26-2005, 08:05 PM
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drnick
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i dont get why they would be closer to the brake calliper, is it just because of the wheel shape with the inside profile of the hollow spokes? why do the smaller offset wheels fit without a spacer and clear the calliper?
Old 09-26-2005, 08:13 PM
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Peter F
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It may vary between different Porsche 18x10" wheels depending on shape.
But I can confirm that the Carrera 18x10" ET65 will touch the brake caliper slightly on a 32v car.
Have not tried the spacer thickness needed, but Richard has.

Cheers/Peter
Old 09-26-2005, 08:13 PM
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blau928
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Nick,

these wheels are negative offset, meaning the mounting face is 65mm from the center towards the outside to the wheel, and moving the spokes of the wheel closer to the caliper. The lower the negative offset, such as 45mm will move the spoke further away from the caliper, and the mounting face closer towards the centerline...

HTH,
Old 09-26-2005, 08:35 PM
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drnick
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ok, i get it... at least for the moment! for some reason wheel offset allways confuses me, but i guess whats being said is that the spokes need to reach inboard slightly more on the larger offset wheels. that makes sense (dont anyone try and confuse me by refuting my current logic!)
Old 09-26-2005, 08:43 PM
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I had a pic once that explained it all perfectly.. I'll see if i can find it in the garage...



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