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"O Gruppe 13"
 
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So, you have it. Can you share the info....

Happy Holidays to all of you!

Now, that I thing i am on a good side of your's , question.
I know it has bin discussed before and yes I did read most of the forums about it but all I found - was general info....." yes it good"; "i did it my self..."; "it is amazing..." and blah-blah-blah.....

My question is : how hard and painful and $$$$ is to put in G50-xx in a 86 930 ?
I know I need :
1. G50-xxx
2. Master and slave cylinders (for tranny)
3. Clutch pedal cluster
4. Hydraulic lines for G50
5. Custom transmission mount
6. Shortened G50 bell housing
7. Gear shifter and linkage

Who ever have done that, can you share you experience not only as:
It improved driving
engine response on low RPMs But also is it cost efficient. Is it possible to do it my self.
I am really contemplating that idea and trying to get all "Ups" and "Downs" to make my decision : rebuilt newly rebuilt 4-speed tranny to shorten 1-2-3 gears or replace it with G50-xx?

Here how they do at big shop next to me. It is just not enough info. I'll call 'em about a pricing.

http://www.pwr-tech.com/project_links_trial22.htm
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86 930 Kokeln IC and Turbo; Zork;SC cams,Port&Polished
68 911T/R "Special wish program Nr.184*** car"
67 911 2.0L, 901, Webbers,Matching #'s
68 912 original to the bone
Old 12-29-2008, 07:25 PM
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I have a 87 that came with the G-50 conversion. I have heard from some shops that if they did it today they would charge 10-12k to do it. If you want to take mine for a spin to see if you like it I`m in Rockland Co not to far from NJ. LMK
Old 12-29-2008, 07:52 PM
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"O Gruppe 13"
 
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Quote:
Originally Posted by Tug68 View Post
I have a 87 that came with the G-50 conversion. I have heard from some shops that if they did it today they would charge 10-12k to do it. If you want to take mine for a spin to see if you like it I`m in Rockland Co not to far from NJ. LMK
I would be delighted to take a spin in yours.
10-12K even with a tranny seems overpriced . But hey thats is the number to start from.
If I remember correctly there was a thread about great build up at Zuffenhaus. It was Teo's car. So I can recall 993 6speed tranny was instaled into 70something 911. Here is the thread for that 3.9 RSR project --- my Carrera reborn
Transmission from factory cost 6K ? am I correct ?
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86 930 Kokeln IC and Turbo; Zork;SC cams,Port&Polished
68 911T/R "Special wish program Nr.184*** car"
67 911 2.0L, 901, Webbers,Matching #'s
68 912 original to the bone

Last edited by IDGAF27; 12-29-2008 at 08:33 PM..
Old 12-29-2008, 08:03 PM
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I did the conversion in my 75 930, couldn't go back to the 4 gear. To me the shifting quality is much improved, like the gear ratio options better too.
If you need any parts or help with a conversion let me know.

Dan
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Old 12-29-2008, 11:22 PM
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Quote:
Originally Posted by lite75 View Post
I did the conversion in my 75 930, couldn't go back to the 4 gear. To me the shifting quality is much improved, like the gear ratio options better too.
If you need any parts or help with a conversion let me know.
Dan
Eventualy I will need a parts for conversion, but for now I want to get as much as possible info on cons and pros doing it.
Except that making tranny bellhausing and shaft shorter everything else could be done my self.
Whoevere did the conversion share numbers on what am I looking to spend on making G50 shorter?
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Gytis
86 930 Kokeln IC and Turbo; Zork;SC cams,Port&Polished
68 911T/R "Special wish program Nr.184*** car"
67 911 2.0L, 901, Webbers,Matching #'s
68 912 original to the bone
Old 12-30-2008, 05:43 AM
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I think you also have to cut out the center section of the torsion bar tube to fit a G50-50 in there.
Then you put in coil over rear shocks and it's a good idea to reinforce the top of the rear shock towers since they will be holding the weight of the car now.

I guess you could cut out the whole torsion tube and weld one in for an '89 turbo along with the different G50 spring plates if you want to use rear torsion bars still.
A 1987 on G50 Carrera torsion tube may be the same except the 930 uses different rear control arm pickup point geometry that is supposed to reduce rear squat under acceleration.
Old 12-30-2008, 04:36 PM
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I installed a ROW G50 in my SC maybe 5 years ago. The gearing in my G50 is close to the 915 tranny that came out of the car. I did everything myself except the machining. The machining cost $400. The total parts and machining came to $4400. It was a fair amount of work and I would have no problem charging someone $12K to do the job. I have never driven a 930 with a 4 speed but I like 5 speeds alot.
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Old 12-30-2008, 06:33 PM
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I have done one with an already shortened G-50 (I think from another turbo) and it ain't bad at all. What I did was I used a prefabbed -4 A/N teflon line to go from the clutch master to slave which made that a simple task. The pedal cluster is a simple bolt in if I remember correctly. Long and the short it was a G50/50 going into an 87' 930. The only thing that I still cant figure out is that the engine/trans assembly seemed a little longer, causing some fittment issues, but nothing that I couldn't handle. It is realistically $4K in labor.
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Old 12-30-2008, 09:17 PM
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Don't want to hijack the thread but have any of you G50 swap guys had any clutch problems? My track car had the conversion right before i bought it and the clutch failed shortly thereafter. Put a new PP and disc in and ran 9 events last year with no problems at all. The took her out (she is "street legal") over thanksgivingand the clutch cannot hold boost!! this after absolutley no problems at all at the track. ??????
Stock motor.

Pm me with info if you don't want to take up the post. Thanks.

IDGAF27 - Dan Jacobs at Hariy Dogg Grrrage in Ct did the conversion on mine (82 930). Was quite a job, had to modify (with a really big hammer) the torsion bar tube and make some adjusments on the tranny mount to get it to fit. I think with the tranny it was about $10K as there is lots of labor involved. I have a hargett shifter and shortned 2,3,4 gearset and it is perfect on the track. With the exception of this clutch thing it works really well.

B
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Old 01-02-2009, 01:37 PM
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I bought an 87 with the G50/50 already installed. The 5 spd was one of the key reasons for purchase. I'll spare you the love for it, as you've heard all that.

My G50/50 wasn't shortened, so the torsion tube was cut (as JFairman stated). It's worth looking into as an option as it saves on your #5 & 6. It's easy to go to rear coils instead of torsions. I eventually went to Fox units all around.

Let me know when you're ready, as I have a pristine, low mileage spare G50/50 plus gear shifter and linkage just laying around......but 930gt-40r keeps bugging me for it.

I think you're being smart to look into the upgrade BEFORE deciding.

Happy New Year!
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Old 01-02-2009, 01:57 PM
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