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Posted by: stephenpowless Sep 30 2013, 10:21 PM

Currently have a 915 transmission with 3.6 varioram motor. It's very balky and I'd like to switch back to the original G50. The bell housing took a big hit in a track mishap when they were in a 911. The motor is now in a 914 and I miss the G50. Stan at GBox has offered to fabricate a new bell housing and add GT3RS third, fourth and fifth gears. Has anyone made this conversion? My mechanic is wondering about what pedal cluster to use. Any recommendations appreciated. TIA.

Posted by: 396 Oct 1 2013, 12:50 AM

Will this be in a 914 or 911?

Posted by: stephenpowless Oct 1 2013, 09:46 AM

This is going to be mated the motor previously moved from the wreck, to a 914 track car. I've been testing and tuning for two years now. First had to track down a ECU problem. Now working on the alignment. I'm really unhappy with the 915 transmission the builder put in the car

Posted by: brant Oct 1 2013, 10:50 AM

The ring and pinion machined. Not a bolt in job. I believe the g50 interferes with the chassis

Posted by: SirAndy Oct 1 2013, 11:35 AM

It's been 10 years since i've looked at a G50 in a 914 but if i recall correctly, it was mounted upside down to clear the chassis.

Posted by: tscrihfield Oct 1 2013, 03:46 PM

all I've seen have been mounted upside down.

Posted by: brant Oct 1 2013, 04:31 PM

Are they all converted to cable shifts?

Posted by: Matt Romanowski Oct 1 2013, 06:55 PM

It has to be upside down if you want multiple forward gears and only one reverse. Kit car people do it fairly often.

Posted by: stephenpowless Oct 1 2013, 09:15 PM

It does get machined and flipped. It is true, they use this set-up with kit cars. My question has to do with applications in the 914. I know there are no chassis fit problems. I'm wondering about pedal cluster requirements and height changes/motor position and alignment. Also functionality. Although I'm not happy with the 915 currently in the car, I could "get used to it" and deal, but it's not a G50, and if the conversion can be achievable, I'm willing to work it out. I'm hoping someone else has done it and has insight into the advisability of making the change

Posted by: 396 Oct 1 2013, 10:19 PM

Yes the 915 is not a G50, but what's your concerns with a 915? Also, how is the current set up...side shifter / Vellios, Wevo and or cable ? Oh how about Martins 916 type side shifter?

Posted by: stephenpowless Oct 2 2013, 09:59 PM

Current setup is Porsche 914 short shifter and Wevo linkage. My Wevo shifter apparently could not be set up, so even with short shifter, it's like driving a bus. It can be physically hard to pull it out of 5th gear when downshifting, then you have to hunt for third gear. After driving with a g50 on the track, it's difficult to go back to the 915. It's like going from a 993, to a SC.

Posted by: 396 Oct 2 2013, 10:13 PM

I know what you mean as I've driven G50 and 996 cars. I have a vellios set up along with the usual mods like linkages etc. I've gotten used to it. Also, I've mod the 915 shift tower a little wider (gate) so I can engage 5th better..maybe its time for a rebuild on the 915

Posted by: ch914er Oct 16 2013, 06:42 AM

Put in a Boxter 987 Tranny

Posted by: Randal Oct 16 2013, 09:05 AM

Didn't Britain just put one of those in his?