| Author |
Message |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Thu Apr 23, 2026 5:34 am Subject: 931 custom in need of some love |
We need to get you the official title of 924.board historian cedric. Crazy the thing you can reference from so far back in time with pictures and videos and all. Very helpful and impressive.
Yes I ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Wed Apr 22, 2026 5:04 am Subject: 931 custom in need of some love |
Heres an in car, though i think it was around 380hp then. The car looks like a worn 931 on the outside, so many surprised looks for sure
https://youtu.be/VhlOFDjZ2y0?is=DWfDkyBb9Dx6gkOM
htt ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Wed Apr 22, 2026 4:54 am Subject: 931 custom in need of some love |
Mistype on the last one, they're 30 mm bars sorry about that guys
I'm thinking replating too, glad I wasn't worried about nothing
Yes I've followed magnus's and the italians build and they've bo ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Wed Apr 22, 2026 3:46 am Subject: 931 custom in need of some love |
| Now that is a genuine Rally Race car. Wish I had the freedom to go that far with old girl here lol, unfortunately the customer want's something that is still relatively nice on street. Very hard to ma ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Tue Apr 21, 2026 5:40 pm Subject: 931 custom in need of some love |
history is just a cycle of it repeating itself lol. so incredible that 20 years ago somebody does the same exact thing but to an even crazier degree... Any way of finding this guy cedric?
Will get ... |
Topic: Valve lapping and clearance adjusting screws concern. |
Cedric
Replies: 8
Views: 1085
|
Forum: General Discussions Posted: Tue Apr 14, 2026 11:24 pm Subject: Valve lapping and clearance adjusting screws concern. |
| There are several classes of screws(indicated by the marking on the end), it might work, might bottom one out(be aware not to screw them to far, you could get around by swapping them around if you are ... |
Topic: New high pressure fuel pump but low system pressure |
Cedric
Replies: 8
Views: 1397
|
Forum: 931 Tech. Posted: Fri Apr 10, 2026 5:14 pm Subject: New high pressure fuel pump but low system pressure |
Removed and inspected the system pressure regulator. Looks pretty good, o rings seem fine and no wear on the control piston. Had two shims installed.
Guess the spring could have weakened over time wh ... |
Topic: New high pressure fuel pump but low system pressure |
Cedric
Replies: 8
Views: 1397
|
Forum: 931 Tech. Posted: Thu Apr 09, 2026 11:38 pm Subject: New high pressure fuel pump but low system pressure |
Maybe its time for a rebuild of the system pressure regulator, it sits in the fuel distributor and have some orings than can dry out, ball, spring and shims. Its very easy to take out and rebuild.
... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Thu Apr 09, 2026 5:25 pm Subject: 931 custom in need of some love |
Oh btw, could you measure the GTS inlet length if you have time? Good reference data to have to understand their intentions.
Heres a pic from my intercooler thread:
https://rejsa.nu/im/user/1552/2 ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Thu Apr 09, 2026 5:21 pm Subject: 931 custom in need of some love |
| The intake is from mittelmotor and is high quality, going to get it 3d scanned by a buddy of mine with a very nice scanner. Was tempted to make one myself but there's no way to replicate the factory l ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Wed Apr 08, 2026 7:31 pm Subject: 931 custom in need of some love |
Really cool with the GTS intake, though having a more generic compresor cover would have made it a bit easier to rotate it around, the reason i swapped to 951 compressor housing Its really a huge c ... |
Topic: 931 custom in need of some love |
Cedric
Replies: 85
Views: 72402
|
Forum: 931 Tech. Posted: Wed Apr 08, 2026 6:38 am Subject: 931 custom in need of some love |
| Slowly getting there! Do you make the adapters yourself? I really recommend the carrera discs up front while you are there, they cost very little and add quite a bit of extra cooling with the extra 3m ... |
Topic: 931 alternator bushings once again available! |
Cedric
Replies: 10
Views: 3571
|
Forum: 931 Tech. Posted: Sun Apr 05, 2026 5:47 pm Subject: 931 alternator bushings once again available! |
| I don't know if the 931 and NA 924 bushings are the same but the NA ones don't last long. On my race car I've made some metal ones on my lathe to keep the alternator pulley in line with the crank and ... |
Topic: Seamless, bolt-on, plug-in EFI kit for the 924/931/928 |
Cedric
Replies: 172
Views: 242779
|
Forum: General Discussions Posted: Sun Apr 05, 2026 5:41 pm Subject: Seamless, bolt-on, plug-in EFI kit for the 924/931/928 |
| I plan on ordering my EFI kit in early summer, still have to get a few bugs sorted out before ordering. I'm seriously considering getting the supercharger kit too. I'm hoping for a noticeable improvem ... |
Topic: 931 alternator bushings once again available! |
Cedric
Replies: 10
Views: 3571
|
Forum: 931 Tech. Posted: Thu Apr 02, 2026 2:55 pm Subject: 931 alternator bushings once again available! |
I hope they are better than they used to be, my new ones didnt last that long. Nowdays i run a 3d printed version instead  |
| |