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  Topic: Belt timing and tuning vs performance
Fifty50Plus

Replies: 6
Views: 377

PostForum: General Discussions   Posted: Sat Sep 12, 2020 8:08 am   Subject: Belt timing and tuning vs performance
8 degrees is too much for anything. Rule of thumb is: advancing the cam moves the torque curve lower in the RPM range while retarding it moves the torque higher in the range. Usually only effective ...
  Topic: Which motor mounts to choose
Fifty50Plus

Replies: 3
Views: 636

PostForum: General Discussions   Posted: Fri Aug 21, 2020 2:13 am   Subject: Which motor mounts to choose
I use them on my track car. Work great.
  Topic: S2 931 EFI Conversion DIY
Fifty50Plus

Replies: 75
Views: 10288

PostForum: Performance Upgrades   Posted: Sun Aug 16, 2020 4:00 am   Subject: S2 931 EFI Conversion DIY
I did this on my Benz race car some years ago. I had a machinist drill and tap the harmonic balancer every 10 degrees for an M6 bolt. He put in stainless bolts and my magnetic pickup couldn't "re ...
  Topic: New fuel delivery (?) issue?
Fifty50Plus

Replies: 101
Views: 10243

PostForum: 931 Tech.   Posted: Sat Aug 15, 2020 8:46 am   Subject: New fuel delivery (?) issue?
I believe the NAs have the green O ring and the turbos have the screw in type.
  Topic: Voltage gauge, behaviour on start-up
Fifty50Plus

Replies: 6
Views: 862

PostForum: General Discussions   Posted: Thu Aug 13, 2020 3:11 am   Subject: Voltage gauge, behaviour on start-up
Weakening battery?
  Topic: Stage Next...
Fifty50Plus

Replies: 286
Views: 74124

PostForum: Performance Upgrades   Posted: Sun Aug 09, 2020 10:11 am   Subject: Stage Next...
Good on you
  Topic: 931 Prices... Did They Just Creep Up?
Fifty50Plus

Replies: 38
Views: 6820

PostForum: 931 Discussion   Posted: Thu Aug 06, 2020 4:13 am   Subject: 931 Prices... Did They Just Creep Up?
Do you happen to have an extra G31 transmission with good synchros?

I believe I have an extra turbo tranny. I'll have to take a look but can't verify good synchros.
  Topic: 1980 931 For Sale
Fifty50Plus

Replies: 2
Views: 606

PostForum: Cars and Parts Wanted/For Sale   Posted: Tue Aug 04, 2020 6:43 am   Subject: 1980 931 For Sale
If he replaced the dogleg tranny, he would have had to replace the torsion tube, shift rod and rear subframe as well as other bits and pieces (exhaust hangers). Then again, getting parts for a dogleg ...
  Topic: 931 Prices... Did They Just Creep Up?
Fifty50Plus

Replies: 38
Views: 6820

PostForum: 931 Discussion   Posted: Tue Aug 04, 2020 1:22 am   Subject: 931 Prices... Did They Just Creep Up?
Chuck, I've got 3 931s in various stages of not running and I live very close to you. I'm thinking of thinning the herd if you are interested in another.
Chuck
  Topic: I thought I'd never stop sweating...
Fifty50Plus

Replies: 2
Views: 901

PostForum: 924 Racing Today   Posted: Tue Jul 28, 2020 5:14 am   Subject: I thought I'd never stop sweating...
Ditto for me at Summit Point this past weekend. Qualifying on Sat morning and 88 degrees. I was 3rd out of 8 IT-Bs (10th overall) and ran the race that afternoon at 95 degrees. 15 laps was tough bu ...
  Topic: 924 front windscreen
Fifty50Plus

Replies: 2
Views: 552

PostForum: Body and Interior   Posted: Tue Jul 28, 2020 5:02 am   Subject: 924 front windscreen
All the same.
  Topic: Beginner Tire Recommendations
Fifty50Plus

Replies: 11
Views: 5920

PostForum: 924 Racing Today   Posted: Thu Jul 23, 2020 1:23 am   Subject: Beginner Tire Recommendations
IT-B is allowed 7 inch rims now. I'm running 7 inch cookie cutters with the Miata Hoosiers (they are designed for a 7 inch rim). A very slight improvement over the 6 inch cookies. Also based on tir ...
  Topic: Drove on track for the first time ever today!
Fifty50Plus

Replies: 22
Views: 2096

PostForum: 924 Racing Today   Posted: Mon Jul 20, 2020 9:56 am   Subject: Drove on track for the first time ever today!
The Me-otter crowd has been lobbying to move their cars into more and more classes in SCCA over the past 10 years. They destroyed a diverse and competitive IT-A class here, are ruining the IT-S group ...
  Topic: Drove on track for the first time ever today!
Fifty50Plus

Replies: 22
Views: 2096

PostForum: 924 Racing Today   Posted: Mon Jul 20, 2020 2:51 am   Subject: Drove on track for the first time ever today!
The key thing with what we do is to have fun. Jacob just got into it and sounds like he is having a ball. Some folks on this board are more into the building and power mods of the car while others a ...
  Topic: where to hook engine crane too
Fifty50Plus

Replies: 1
Views: 1151

PostForum: General Discussions   Posted: Sat Jul 18, 2020 7:15 am   Subject: where to hook engine crane too
Yes, you can use the carb and exhaust studs (8mm) for lifting the engine, just snug up the plates to the head so that the studs won't bend.
You will need to remove the radiator and it helps to undo ...
 
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