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nigelg65
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« on: June 01, 2013, 12:34:56 pm » |
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Quick question: will 7x15s with a back spacing of 6-inches go on the back of an oval with CSP discs, and if so with what tyre? Cheers
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Zach Gomulka
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« Reply #1 on: June 01, 2013, 14:25:36 pm » |
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Sounds like a lot of backspace. I don't know what the CSP brakes add to the track, but my guess is that you'll need long axles for sure.
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Born in the '80s, stuck in the '70s.
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rick m
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« Reply #2 on: June 01, 2013, 17:34:44 pm » |
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I have 7x15 FUCHS on the back of my chop top but not disc brakes. I am running short 66 axles and late VW drums with 5x130 stud pattern.
Rick M
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Rick Mortensen
Driving Hot VWs since 1970
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MC Dyno Don
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« Reply #3 on: June 01, 2013, 17:57:36 pm » |
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Rick, Long time no see. Liking your chop, BUT...TUCK those muffs buddy..!! Peace out/Dyno
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rick m
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« Reply #4 on: June 01, 2013, 21:24:38 pm » |
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Dyno...Eventually I will. It is a merged BERG header. I will have to slice off the collector to move them back. It is how it came. Might have been made for a different model...
Rick M
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Rick Mortensen
Driving Hot VWs since 1970
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nigelg65
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« Reply #5 on: June 02, 2013, 17:41:52 pm » |
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Cheers fellas thanks. Will stick my stock wings back on and give it a go
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rick m
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« Reply #6 on: June 03, 2013, 05:17:44 am » |
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I am running stock width rear fenders on my 66 chop with the 7" FUCHS in the rear on short 66 axles.
Rick Mortensen
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Rick Mortensen
Driving Hot VWs since 1970
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nigelg65
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« Reply #7 on: June 03, 2013, 11:47:10 am » |
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What tyres are you using Rick?
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Zach Gomulka
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« Reply #8 on: June 03, 2013, 13:19:52 pm » |
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From memory I believe a 7" Porsche alloy has about 4 3/4" backspace (corrections welcome). His wheels have 6" backspace. The difference between long and short axles is 30mm (about 1 1/4"), which happens to be the additional backspace his wheels have compared to the alloys. Therefore it stands to reason that he will need long axles (not sure about the brakes though). All theory though, bolt up a wheel and find out.
Run a 205-215 width tire.
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Born in the '80s, stuck in the '70s.
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rick m
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« Reply #9 on: June 03, 2013, 14:57:59 pm » |
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I am running a 215/70 Pirelli on the rear. Will have to get the exact model and post for you.
Hey Zach...you and Chris Predmore going to the Classic this year?
Rick M
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Rick Mortensen
Driving Hot VWs since 1970
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Zach Gomulka
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« Reply #10 on: June 03, 2013, 17:04:00 pm » |
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Hey Rick. Sorry I missed your call yesterday, my hands were greasy helping a buddy of mine get his bus ready for the trip this weekend. So yes, we're going!
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Born in the '80s, stuck in the '70s.
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rick m
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« Reply #11 on: June 03, 2013, 20:37:34 pm » |
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Zach....I will give you a call. Was trying to drive over with a group...I was planning early Friday morning to get to the hotel and get ready for Nicks. I will call to discuss.
Rick Mortensen
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Rick Mortensen
Driving Hot VWs since 1970
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Black Sheep
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« Reply #12 on: June 03, 2013, 21:46:40 pm » |
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I played around with some seven's a few years ago , wish i kept them now coz they looked the bomb IMO  I had them on some late porker patten drums on a 18mm narrowed IRS hub under STD width wings , they were shod with 215 70's |
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Stick with what you know works .
13.03 @ 98mph
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Zach Gomulka
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« Reply #13 on: June 04, 2013, 00:46:08 am » |
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18mm narrower? How did you come to that?
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Born in the '80s, stuck in the '70s.
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rick m
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« Reply #14 on: June 04, 2013, 01:20:31 am » |
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Zach....the bearing carrier can be cut and moved in that much. I have quite a few friends who have done this.
Rick M
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Rick Mortensen
Driving Hot VWs since 1970
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Zach Gomulka
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« Reply #15 on: June 04, 2013, 01:57:46 am » |
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Right, I did the same on my GTV. I narrowed 26mm and used two left side axles from a type three auto trans. Stock axles and CV's with 18mm?
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Born in the '80s, stuck in the '70s.
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ALB
Newbie
Posts: 36
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« Reply #16 on: June 04, 2013, 02:39:05 am » |
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Someone I know narrowed his trailing arms 1 1/2" each side; he said the short auto type 3 axles (bought new from Empi) worked.
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Bruce
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« Reply #17 on: June 04, 2013, 06:01:38 am » |
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...the bearing carrier can be cut and moved in that much. You can go much more. I narrowed mine 34mm per side. Then put 8" Fuchs under the stock fender. |
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Zach Gomulka
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« Reply #18 on: June 04, 2013, 06:13:37 am » |
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...the bearing carrier can be cut and moved in that much. You can go much more. I narrowed mine 34mm per side. Then put 8" Fuchs under the stock fender. With t3 auto axles? |
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Born in the '80s, stuck in the '70s.
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Bruce
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« Reply #19 on: June 04, 2013, 06:22:32 am » |
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Indeed. Shortened them a bit too.
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nigelg65
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« Reply #20 on: June 04, 2013, 12:20:58 pm » |
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Blimey, that's all really helpful. Thanks guys, very much.
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BUGULA
Newbie
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« Reply #21 on: June 04, 2013, 13:58:57 pm » |
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I've learned about how to do this from reading all of Bruce's posts on the topic. One side of a Type 3 is about 5/8" shorter than a Beetle. So thats about how much that you can cut and move and weld the bearing holder back into the control arm. Aftermarket axles have a lot of extra spline. This allows you to shorten them more for narrower applications.
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Black Sheep
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« Reply #22 on: June 04, 2013, 19:23:20 pm » |
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18mm was just the starting point when i ran around on Fuch's , had to do another pair for my centerline's & took 36mm outta them  this is how they first looked with only -18mm ,  I run sway a way race axles with long splines you can machine to what length you need . Pushing the hubs in is really very simple for a competent welder , just treble check everything before you commit and make sure you add some extra supportive strength to the exposed bearing carrier once your done  I now only use the centerlines with my slicks and run a 9mm spacer with my 6.5 flat4 BRM's on the road |
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Stick with what you know works .
13.03 @ 98mph
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rick m
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« Reply #23 on: June 04, 2013, 19:43:54 pm » |
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Great input on the IRS conversion.
Rick M
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Rick Mortensen
Driving Hot VWs since 1970
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Black Sheep
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« Reply #24 on: June 04, 2013, 20:07:51 pm » |
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Not the best pic , but if you look closely you can see my first 18mm reduction where I've just pushed the carrier into the Arm , pretty simple stuff  But this is the extent I had to cut to get the 36mm needed to get my 6" centerlines to sit right , not for the fait hearted  I'll see if I can get a pic of the finished result if anyone's interested , It looks much prettier  Sorry if I've kidnapped this thread , "whoops " |
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« Last Edit: June 04, 2013, 20:11:55 pm by Black Sheep »
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Stick with what you know works .
13.03 @ 98mph
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