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  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Thu Apr 30, 2026 12:49 am   Subject: My "Rat rod" 924 NA turbo conversion.
You should be able to engage 1st from 2nd, the dog teeth are angled (not symmetrical as on 2-5) to help with that. My current NA snail shell wont even think of engaging 1st unless it is standing compl ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Tue Apr 28, 2026 9:44 pm   Subject: My "Rat rod" 924 NA turbo conversion.
No, I was thinking more of the springs in the diff, your preload etc... though it's probably a bellville washer stack in this design rather than coil springs (as used in others)...

If you lost grip ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Tue Apr 28, 2026 7:06 pm   Subject: My "Rat rod" 924 NA turbo conversion.


It surely hasnt got cheaper, i just checked my invoce from back in the Ideola days and it was quite abit lower than those prices. And i guess its more expensive if you ask today.


I rebuilt m ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Tue Apr 28, 2026 4:51 pm   Subject: My "Rat rod" 924 NA turbo conversion.
Very interesting to see the guts of the G31! I'll be there with you sooner or later... I still can't believe how well mine has held up, and how well I've adapted to driving it, despite seemingly no 1s ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Tue Apr 28, 2026 4:50 pm   Subject: My "Rat rod" 924 NA turbo conversion.


How about spring rates, do those want changing too?



On the car? No, they will stay the same for now. Hopefully the LSD will give me back the grip I lost when I went to coilovers (250 N/mm + ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Sat Apr 25, 2026 5:09 am   Subject: My "Rat rod" 924 NA turbo conversion.
You just flip around the piece with the ramps and it will work in the other way.
It switches from 1.5 reverse to a 1.5 standard.

It could be set up as hard 100% locking (as it came), medium 65% o ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Fri Apr 24, 2026 7:01 pm   Subject: My "Rat rod" 924 NA turbo conversion.
I've been slowly working on a G31 gearbox for the ratrod.
I had a 911/915 LSD I could fit to it also.

https://i.imgur.com/r9QOISM.jpeg

https://i.imgur.com/UXAjSrO.jpeg

Had to rearrange the d ...
  Topic: 931 custom in need of some love
safe

Replies: 85
Views: 81371

PostForum: 931 Tech.   Posted: Fri Apr 24, 2026 5:41 pm   Subject: 931 custom in need of some love


Why did you choose the NA head over the turbo head for your big turbo setup Safe? I remember reading mike931 (i think) thread about head porting and he mentioned after his extensive fiddling that ...
  Topic: 931 custom in need of some love
safe

Replies: 85
Views: 81371

PostForum: 931 Tech.   Posted: Thu Apr 23, 2026 9:28 pm   Subject: 931 custom in need of some love
Wow, those are impressive gains up high!!! Is that also larger valves than stock? I'd guess so?

Had an amusing discussion with an old timer over the weekend, looking at Turbos, he was trying to con ...
  Topic: 931 custom in need of some love
safe

Replies: 85
Views: 81371

PostForum: 931 Tech.   Posted: Thu Apr 23, 2026 5:10 pm   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: Valve lapping and clearance adjusting screws concern.
safe

Replies: 8
Views: 2342

PostForum: General Discussions   Posted: Thu Apr 16, 2026 2:44 am   Subject: Valve lapping and clearance adjusting screws concern.
Lapping valves usually takes away a miniscule amount of material, it's a polish. It the valves and seats are cut you actually takes away material, but its not a huge amount and the adjustors should be ...
  Topic: My "Rat rod" 924 NA turbo conversion.
safe

Replies: 127
Views: 229641

PostForum: Performance Upgrades   Posted: Mon Mar 02, 2026 10:29 pm   Subject: My "Rat rod" 924 NA turbo conversion.
Winter fun, fixing nagging things that is really annoying.

There is an exhaust drone around 3000 rpm. Trying to fix that with a better quality rear muffler, also bigger. Its not a loud exhaust othe ...
  Topic: The hornet's nest resurrection project
safe

Replies: 94
Views: 102167

PostForum: General Discussions   Posted: Fri Feb 27, 2026 9:52 pm   Subject: The hornet's nest resurrection project
I bought a 931 8 years ago, it ran fine apparently at least.

It needed some, quite a lot, of restoration. I'm now trying to move it to another garage on by its own power.
I tried getting it sta ...
  Topic: Mittelmotor crankshaft
safe

Replies: 1
Views: 7581

PostForum: Performance Upgrades   Posted: Tue Feb 17, 2026 7:13 am   Subject: Mittelmotor crankshaft
Perfect for FIA historic racers, otherwise you could probably get a lighter than stock stroker crank for the same money.
  Topic: Engine and Transaxle mounts
safe

Replies: 13
Views: 11054

PostForum: General Discussions   Posted: Tue Jan 27, 2026 2:21 am   Subject: Engine and Transaxle mounts
I replaced the broken spring in mine and that made a world of difference.

Interesting. I saw the spring priced at some honestly weird prices for a spring, but certainly cheaper than replacing both ...
 
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