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Licensed User
Join Date: Feb 2003
Location: ....down Highway 61
Posts: 6,506
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944 NA single piston brake caliper question
Quick questions about the early 944 NA single piston brake calipers.
Are the front and rear calipers the same? Does anyone know the bolt spacing on the ears? TIA |
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09-21-2009, 09:05 AM
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That Guy
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The spacing is different, though I do not know the dimensions.
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09-21-2009, 09:57 AM
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Licensed User
Join Date: Feb 2003
Location: ....down Highway 61
Posts: 6,506
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Anyone? What do you early NA guys do for an easy bolt on brake upgrade? Is there something between the single-piston and four-piston turbo calipers that will fit under a 15" wheel? Is there a good guide anywhere online that covers the different 944 brakes?
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09-22-2009, 09:05 AM
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That Guy
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Two options, Rennbay's Wilwood calipers or going with the 4-piston Brembo's.
The Wilwoods fit under the 15''s but are only front calipers, you retain the single piston rears and also the same rotors in the front. Part of the advantage of going with bigger brakes is larger rotors, more swept area and better thermal capacity. The 4-piston Brembo's require front spindles from the '86 951 on your early n/a. You will need to have a machine shop drill out the center of the spindle on the drivers side spindle for the speedometer cable. I had this done by a local guy and it was no problem.. i would give him both spindles however so they know what has to be done exactly. The rear 4-pistons are a direct fit to the rear, no modification needed. If you do a search, i have covered brake upgrade options for the n/a many times in older threads.
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Jon 1988 Granite Green 911 3.4L 2005 Arctic Silver 996 GT3 Past worth mentioning - 1987 924S, 1987 944, 1988 944T with 5.7L LS1 |
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09-22-2009, 09:17 AM
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Registered
Join Date: Feb 2007
Location: CT
Posts: 643
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Why do people always want more brakes! I was at the track yesterday and out-brake most people. You need to just learn to carry more speed, and brake less!
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-Randy 1984 944 -Race car project 1993 968 coupe- Amazon Green |
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09-23-2009, 07:30 AM
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Licensed User
Join Date: Feb 2003
Location: ....down Highway 61
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The car I'm working is actually a VW pan based Speedster, not a 944. Trust me. I need more brakes
I don't think I need anything more than the NA single piston calipers and vented rotors for even the hardest use in this car, tho. The NA 944 brake conversion is allegedly very popular with the VW crowd, I'm just having issues finding any technical info about it on VW forums, so I figured I'd ask about the brakes here.Does anyone have part numbers for the front and rear brake parts for an early NA 944 with the single piston calipers? I need part numbers for the calipers, rotors, backing plates, e-brake parts, etc..? Here is what I have so far: Front L caliper: 944.351.429.00 Front R caliper: 944.351.430.00 Rear L caliper: 944.352.429.00 Rear R caliper: 944.352.430.00 front rotors: 911.351.041.20 rear rotors: 944.352.041.02 rear backing plates: ?? Are these correct? Also, has anyone used remanufactured NuGeon calipers? Are they any different than VST, or is there another brand name to use? Last edited by Shuie; 09-23-2009 at 09:26 AM.. |
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09-23-2009, 08:50 AM
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meister member
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There has been work done on a brake upgrade using Lexus 430 four piston aluminum calipers. This was done by a guy who goes by xshop on the 944hybrids board.
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09-23-2009, 08:57 AM
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Under the car
Join Date: Jan 2008
Location: Ross, Ohio
Posts: 585
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Come on now speedy... Xschop thought up the idea but I was the first one to make it happen.
 They work great and I am without power brakes.
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09-23-2009, 05:07 PM
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meister member
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Quote:
The Lexus 430 calipers and pads are much much larger than the 4 pot turbo brakes. They rival that of the Big Reds. Speedy
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1983 944 guards red with 16" Fuchs, Host of Wisconsin area timing/ balance shaft belt tensioning party 1987 944S Purchased from Legion. Corvette LT-1 V-8 conversion with Mega Squirt II Check on progress ---> www.porschehybrids.com/gallery/speedracing944 Favorite Road = www.tailofthedragon.com 318 turns in 11 miles (11 min 20 sec best run) |
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09-23-2009, 05:40 PM
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Registered
Join Date: Dec 2000
Location: Westport,MA
Posts: 573
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This might not be for the average person or a purist, but I did this conversion using aluminum Wilwood GM metric racing calipers. They are cheap and very light and I thought in keeping with the spirit of the original single piston calipers. Turned out that they will not fit under std 15" wheels, so I used some 911 hubs I had that give another ~7mm of wheel spacing. Plumbing is a pain with these also.
I guess I don't have a picture of them installed with the proper steel adapter, but you can get the point. My beef with the 944 brakes was not performance, just weight. Jury is still out on this, have not had it on the road yet. Rears will be tougher, can't find any calipers with small enough pistons. Rear pistons on 944 NA are 36mm dia if I remember correctly. I used the 2" piston dia on the wilwoods, a bit bigger than stock 944 but within the range. 
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Art '75 911 US Carrera #390 '74 MGB, AH 3000 BN7 V8, '65 Mustang Fastback, 66 bronco U13 |
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09-24-2009, 11:09 AM
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Licensed User
Join Date: Feb 2003
Location: ....down Highway 61
Posts: 6,506
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Does anyone have the part numbers for the single piston NA calipers?
Are these correct? Front L caliper: 944.351.429.00 Front R caliper: 944.351.430.00 Rear L caliper: 944.352.429.00 Rear R caliper: 944.352.430.00 |
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09-26-2009, 02:20 PM
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The Kraut Burner
The Bratwurst Burner
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