Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG. This site is not affiliated with Porsche in any way.
Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> 3.6 tranny options, Converting from 915 to G50
stephenpowless
post Sep 30 2013, 10:21 PM
Post #1


Newbie
*

Group: Members
Posts: 6
Joined: 27-September 13
From: Minneapolis
Member No.: 16,444
Region Association: None
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.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
0396
post Oct 1 2013, 12:50 AM
Post #2


Advanced Member
****

Group: Members
Posts: 2,046
Joined: 13-October 03
From: L.A. Calif
Member No.: 1,245
Region Association: Southern California
Will this be in a 914 or 911?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stephenpowless
post Oct 1 2013, 09:46 AM
Post #3


Newbie
*

Group: Members
Posts: 6
Joined: 27-September 13
From: Minneapolis
Member No.: 16,444
Region Association: None
QUOTE(396 @ Sep 30 2013, 10:50 PM) *

Will this be in a 914 or 911?

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
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post Oct 1 2013, 10:50 AM
Post #4


914 Wizard
**********

Group: Members
Posts: 11,619
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
The ring and pinion machined. Not a bolt in job. I believe the g50 interferes with the chassis
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
SirAndy
post Oct 1 2013, 11:35 AM
Post #5


Resident German
*************************

Group: Admin
Posts: 41,618
Joined: 21-January 03
From: Oakland, Kalifornia
Member No.: 179
Region Association: Northern California
QUOTE(brant @ Oct 1 2013, 09:50 AM) *
I believe the g50 interferes with the chassis

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.

(IMG:style_emoticons/default/popcorn[1].gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
tscrihfield
post Oct 1 2013, 03:46 PM
Post #6


Drive Fast and Take Chances
***

Group: Members
Posts: 643
Joined: 8-September 10
From: Amelia Ohio
Member No.: 12,156
Region Association: None
QUOTE(SirAndy @ Oct 1 2013, 01:35 PM) *

QUOTE(brant @ Oct 1 2013, 09:50 AM) *
I believe the g50 interferes with the chassis

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.

(IMG:style_emoticons/default/popcorn[1].gif)


(IMG:style_emoticons/default/agree.gif) all I've seen have been mounted upside down.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post Oct 1 2013, 04:31 PM
Post #7


914 Wizard
**********

Group: Members
Posts: 11,619
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
Are they all converted to cable shifts?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Matt Romanowski
post Oct 1 2013, 06:55 PM
Post #8


Senior Member
***

Group: Members
Posts: 878
Joined: 4-January 04
From: Manchester, NH
Member No.: 1,507
It has to be upside down if you want multiple forward gears and only one reverse. Kit car people do it fairly often.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stephenpowless
post Oct 1 2013, 09:15 PM
Post #9


Newbie
*

Group: Members
Posts: 6
Joined: 27-September 13
From: Minneapolis
Member No.: 16,444
Region Association: None
QUOTE(Matt Romanowski @ Oct 1 2013, 04:55 PM) *

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

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
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
0396
post Oct 1 2013, 10:19 PM
Post #10


Advanced Member
****

Group: Members
Posts: 2,046
Joined: 13-October 03
From: L.A. Calif
Member No.: 1,245
Region Association: Southern California
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?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
stephenpowless
post Oct 2 2013, 09:59 PM
Post #11


Newbie
*

Group: Members
Posts: 6
Joined: 27-September 13
From: Minneapolis
Member No.: 16,444
Region Association: None
QUOTE(396 @ Oct 1 2013, 08:19 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?


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.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
0396
post Oct 2 2013, 10:13 PM
Post #12


Advanced Member
****

Group: Members
Posts: 2,046
Joined: 13-October 03
From: L.A. Calif
Member No.: 1,245
Region Association: Southern California
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
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ch914er
post Oct 16 2013, 06:42 AM
Post #13


Newbie
*

Group: Members
Posts: 4
Joined: 17-July 08
From: Germany
Member No.: 9,312
Region Association: Germany
Put in a Boxter 987 Tranny (IMG:style_emoticons/default/wink.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Randal
post Oct 16 2013, 09:05 AM
Post #14


Advanced Member
****

Group: Members
Posts: 4,446
Joined: 29-May 03
From: Los Altos, CA
Member No.: 750
Didn't Britain just put one of those in his?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · The Paddock · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 5th May 2024 - 06:14 AM
Invision Power Board v9.1.4 © 2024  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...