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MikeDanger
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MikeDanger
Joined: 21 Nov 2002
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Location: Denver
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 Posted: Tue Oct 27, 2020 3:47 pm Post subject: |
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anyone?
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Fasteddie313
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Location: MI
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| Posted: Wed Oct 28, 2020 1:24 am Post subject: |
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Any 944 master perhaps?
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80 Turbo - Slightly Modified |
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Mike9311
Joined: 14 Dec 2004
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Location: Chicago-ish
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| Posted: Wed Oct 28, 2020 1:35 am Post subject: |
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11-2742 is on the '82 931. Got it for $84 +ship
I searched around for PN's cross references all over eBay
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1980 931 since 1989
1981 Ideola 931 Club Sport
1982 931 Entwicklungsfahrzeug
1979 924 NA ohne 650 mit 471
1982 931 Red Resurrection - 951 IC
1982 931 parts car / resurrection?
1980 924 NA (R&D lightweight)
1982 931 wana-be GTR race car |
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MikeDanger
Joined: 21 Nov 2002
Posts: 774
Location: Denver
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| Posted: Wed Oct 28, 2020 6:32 pm Post subject: |
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| Mike9311 wrote: | 11-2742 is on the '82 931. Got it for $84 +ship
I searched around for PN's cross references all over eBay |
only thing I could find was $250!
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MikeDanger
Joined: 21 Nov 2002
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Location: Denver
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| Posted: Wed Oct 28, 2020 6:33 pm Post subject: |
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| Fasteddie313 wrote: | | Any 944 master perhaps? |
no they are stepped
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Coco_Lev
Joined: 04 May 2020
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Location: France
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Fasteddie313
Joined: 29 Sep 2013
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Location: MI
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| Posted: Thu Oct 29, 2020 1:27 am Post subject: |
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| MikeDanger wrote: | | Fasteddie313 wrote: | | Any 944 master perhaps? |
no they are stepped |
They only really have one pressure piston in them so their is no bias f/r for any 924/944 master.. Pressure/volume is equal..
The 2nd piston is just a floating piston to separate the 2 chambers, pressure is only applied by the main piston..
What IS stepped is the volume loss needed to operate in failsafe mode, where it splits the chambers so you still have 2 brakes if you loose pressure on the other pair.. It's the safety system in them that changes a little for different volume calipers they were intended to operate with..
The calipers on the 924 5 lug and early 944 are the same anyway, the only difference is X split vs F/R split..
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80 Turbo - Slightly Modified |
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MikeDanger
Joined: 21 Nov 2002
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Location: Denver
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| Posted: Sat Oct 31, 2020 2:32 pm Post subject: |
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| Fasteddie313 wrote: | | MikeDanger wrote: | | Fasteddie313 wrote: | | Any 944 master perhaps? |
no they are stepped |
They only really have one pressure piston in them so their is no bias f/r for any 924/944 master.. Pressure/volume is equal..
The 2nd piston is just a floating piston to separate the 2 chambers, pressure is only applied by the main piston..
What IS stepped is the volume loss needed to operate in failsafe mode, where it splits the chambers so you still have 2 brakes if you loose pressure on the other pair.. It's the safety system in them that changes a little for different volume calipers they were intended to operate with..
The calipers on the 924 5 lug and early 944 are the same anyway, the only difference is X split vs F/R split.. |
Im not sure about that, searching for using 944MC on 924 says no.
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Carrera RSR
Joined: 08 Jan 2010
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Location: Somerset, UK
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| Posted: Sat Oct 31, 2020 5:33 pm Post subject: |
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If you switch to 944MC then you need to swap out all other braking components to 944 spec. Servo and more importantly the line routing to front/rear from diagonal. Or just buy a new 931 MC. When I did mine a new MC was circa £100 and rebuild kit was circa £80. Why rebuild??
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1980 931 - forged pistons, Piper cam, K27/26 3257 6.10 hybrid turbo, 951 FMIC, custom intake, Mittelmotor dizzy & cam pulley, H&S exhaust, GAZ Gold, Fuch'ed, Quaife
Now www.924board.org/viewtopic.php?t=34690
Then www.924board.org/viewtopic.php?t=31252 |
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MikeDanger
Joined: 21 Nov 2002
Posts: 774
Location: Denver
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| Posted: Sat Oct 31, 2020 6:01 pm Post subject: |
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the ones I have seen listed new are over $200!
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Paul
Joined: 02 Nov 2002
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Location: Southeast Wisconsin
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