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rcoble

Joined: 12 Mar 2005 Posts: 71 Location: Ojai California
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Posted: Fri Jun 10, 2005 5:14 am Post subject: Site with 4-bolt aftermarket. |
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Don't know if these would fit but I was emaild this link:
http://www.fiatwheels.com/racer_detail.htm
Don't know if this is the right center bore or offset but it's the right bolt pattern. _________________ 78-924 red , my first real car at age 44.
80-928 black, bought from turbo924.
83-928 black, My current effort. |
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Smoothie

Joined: 01 Jan 2003 Posts: 8032 Location: DE (the one near MD, PA, NJ)
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gohim
Joined: 02 Nov 2002 Posts: 4459 Location: Rialto, CA
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Posted: Fri Jun 10, 2005 8:04 am Post subject: |
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I read the five-bolt brake conversion article, and for the most part it is accurate, and has lots of good information, but it does have some inaccuracies/mistakes.
However, the article makes a bid deal about the controversy surrounding whether the car being converted need the "stepped" brake master cylinder used in the 944, or not, wasting a lot of words.
Rear calipers are all the same, the replacement part number is the same for all 924/931 (with four wheel disc brakes) and 944 NA from 79-88.
The 924 uses a master cylinder with the same bore size both front and rear for all three master cylinders used during production (smaller for earlier cars (77-79, internal 19mm+) later cars (80-85, internal 23mm+).
The 944 stepped master cylinder (23mm front & 19mm rear) was used on all 944 from 82-88.
The front four wheel disc brake calipers were changed by Porsche for the 84 model year (earlier 924, 931 & 944) cars with four wheels disc brakes used the used a different front caliper. But the caliper seal kit is the same for both the earlier and later model front calipers.
This would indicate that the front caliper chamber bore diameter was the a different size for the later cars, despite what some people proclaim as the reason for needing for the 944 master cylinder would have you believe.
I have a set of complete struts from a 85/2 944 (minus the springs) on front of my 81 Wessiach Special Edition 924 that were installed during the conversion back in 1998. The car is perfectly balance under all braking conditions.
There may be a difference in the way a single car would react with a set of early four wheel disc brake front calipers vs late four wheel disc brake calipers, and late 924 vs 944 brake master cylinder. But suspension tuning and other component selection make more of a difference from what I can see (springs, shocks, swaybars, tires, wheels).
IMHO buy the parts in the best condition possible, install new caliper seal kits, and brake pads, check and replace the caliper hardware, rotors and wheel bearings as necessary, install the four wheel disc brakes, and tune (make changes) as necessary for the brake balance that you need/ prefer. |
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rcoble

Joined: 12 Mar 2005 Posts: 71 Location: Ojai California
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Posted: Fri Jun 10, 2005 9:08 am Post subject: |
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the wheels have 8 holes 4 for 98mm and 4 for 108mm This is a typo on their part _________________ 78-924 red , my first real car at age 44.
80-928 black, bought from turbo924.
83-928 black, My current effort. |
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denis durrell
Joined: 15 Nov 2002 Posts: 112 Location: san francisco, ca usa
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Posted: Fri Jun 10, 2005 7:42 pm Post subject: |
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that would make sense since they listed the mustang on there. Keep in mind that wheels that are 4x100 with 30mm+/- offset are plentiful due to hondas, and e30 bmw cars using similar bolt patterns and offsets.
random UK site with a good selection of 14, 15, and 16 wheels (offsets on the website are scarce if non-existent): http://www.street-racers.co.uk/racer_shop_alloy_wheels.htm
note that the manufacturers websites usually have more info concerning offsets and sizes. _________________ denis d.
san francisco, usa
83 944 LZ7Z (Gemini Grey)
86 944 LA1Y (Beige metallic, auto)
87 BMW 325es black, 5sp, lsd
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78 924 red, the cops got it with me in it, in 2002 |
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rcoble

Joined: 12 Mar 2005 Posts: 71 Location: Ojai California
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Posted: Sat Jun 11, 2005 2:22 am Post subject: |
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They have several models of 4x108 just go to their main page _________________ 78-924 red , my first real car at age 44.
80-928 black, bought from turbo924.
83-928 black, My current effort. |
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