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Thread: Wheel advice

  1. #21
    Quote Originally Posted by NorthernThrux View Post
    Longstone in the UK has fresh CN36 185/70R15s, date codes in the past few months.

    One last question for the experienced. The 215/60R15 CN36 has a range of allowable rim widths from 6"-7.5". Which means that in theory it can go on my 6" rims and since it will protrude 15 mm further inside and out, it should fit. Haven't found any info on this anywhere.

    I do spin my rear wheels accelerating out of tight corners sometimes, so this is why I keep coming back to a slightly wider rear tire. But the better solution may be a LSD and keep the stock widths.

    Thoughts?
    Ravi,,,you spin rear tires exiting a corner,,,,I'impressed!!!
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  2. #22
    Senior Member NorthernThrux's Avatar
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    Quote Originally Posted by edmayo View Post
    Ravi,,,you spin rear tires exiting a corner,,,,I'impressed!!!
    I thought that was normal ? I guess I have enough torque to spin the inside rear wheel in tight 2nd gear corners. Robert did warn me that a limited-slip might come in handy. I'm sure 9 year old XWXs in stock size don't help, though they look really good with no cracking.

    I think after going through all this and talking to a few other people, I'm just going to stick to 185/70s on my flat 6s and try the CN36s on for a change. I think starting to go down that non-stock rabbit hole for this and other things takes away from what I tried to accomplish with this car. What I really need is a hot rod resto mod to play around with when I get the urge. Alas, those are out of reach now.
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  3. #23
    Serial old car rescuer Arne's Avatar
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    I have a sneaking suspicion that you will be happy with stock size CN36s, Ravi. I look forward to your review.

    As for limited slip, my '84 Carrera was factory equipped with it, and it was a real benefit with 200+ HP on tap. Quite possibly something you may want to consider.
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  4. #24
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    Just a thought as the objective is spare wheels & tires, maybe look at Fuchs 16 x 6 from SC's, 16" gives a better tire selection and a 205-55 16 diameter is pretty much right at stock diameter. Just a thought not mentioned yet.

    Regards

  5. #25
    Serial old car rescuer Arne's Avatar
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    Quote Originally Posted by Jerry L View Post
    Just a thought as the objective is spare wheels & tires, maybe look at Fuchs 16 x 6 from SC's, 16" gives a better tire selection and a 205-55 16 diameter is pretty much right at stock diameter. Just a thought not mentioned yet.

    Regards
    That's a good option also, once you have the 16" wheels refinished similar to our 15". I had 16" finished that way on my '84 Carrera. Some good tires available in 205/55-16, but not many that look very "period".

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    - Arne
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  6. #26
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    Have had 205/60 on 6” wheels on all 4 corners about forever-stock 1969

  7. #27
    Senior Member NorthernThrux's Avatar
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    Decided to stick with the stock rims and new CN36 tires for next spring. Although there are advantages to the 16" rims and the additional tire sizes, they just don't look right to my eye. Trying to keep it original looking. I have confirmed that a 215/60 CN36 or CR6ZZ will fit and is allowable by both Pirelli and Avon on a 6" rim. So when the time comes, I'll look at the 185/70 (square) or 215/60 (staggered) option on the rear as well.

    Can always go with the Avon CR6ZZ for even more grip as an option in stock square or staggered sizes. They don't keep the car as authentic looking (and feeling), but maybe a decent tradeoff. I have a friend with a square setup mounted on a 72 911T Targa, so I'll check them out in person after our lockdown ends. His complain is that the Avons lose a lot of grip in the shoulder seasons, which would be a no go for me. Want to be on the road for 6-8 months, even when it is dry and below freezing. SO I suspect the CN36 is the choice.
    Last edited by NorthernThrux; 06-07-2021 at 01:25 PM.
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  8. #28
    Senior Member Veronica87911's Avatar
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    Ravi, my 72 T with 7x15s and 205/55 Dunlop DZ102s all around...no rubbing and have been running these for around 3 years or so. those are 15s from late 70s early 80s
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  9. #29
    Senior Member NorthernThrux's Avatar
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    I remember your car Serge. That is the look I was thinking about. I like the wider exposed rim compared to the flat 6. Definitely something to consider.
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  10. #30
    Senior Member Chris Pomares's Avatar
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    I had Al Reed do a set of 16's like 15's 11 or 12 years ago. He looked at me confused. He said he had never seen, heard of, or done anything like that before. 16's take care of all but the most extreme caliper selections, and have many more VR tire choices. I have NON S Boxster Brembo's on the front and modified 914 front calipers on the rear on my 67. I run 16's for the tire choices. I could care less about Porsche N certification. I run only 195/5516's. With no flairs, and a high end 16 tire, a 195 has plenty of stick and I have no rubbing issues.
    If you want the 15 look on a 6X16 look at the top picture carefully. Only paint the flats. Don't run paint up the spokes or lips. If you do the proportions will be off and the black between the lip and spokes will be too wide and look weird. I've shown this car many times and 1000's of Long Hood folks have seen this car. Maybe 2 guys noticed the wheels were 16's and said something. It's obvious here because tires and wheels are what the thread is all about. But when there are Porsche's everywhere your standing up next to the car people just don't notice the difference. And I'm talking guys who have worked on the cars 40 and 50 years.
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