Installing G50 onto a 2.7 RS engine

[rcwtom]

Just wondering, is it possible to connect a G50 gear box to a 2.7 RS engine, is it feasible??, would it be better than having a 915??, have heard that the G50 is a lot heavier.

Thanks

[Bill Verburg]

The G50 is a lot heavier, has fewer gear ratios available, requires major changes to the rear suspension, requires replumbing the pedal cluster on a pre 84 car. It will handle higher hp more gracefully than a 915. IMO a lot of hassle and expense for very little benefit. Yes, it bolts to an earlier case after a new flywheel clutch and pp are installed.

[89911]

Does anyone know the actual weight of the G50 Tranny. I'm not Hercules, (although I'd like to think I am), and I can pick it relatively easily. My brother took it over to the shop and picked it up and out of a trunk of a sedan. From my crude muscle guages, I would guess about 150-200lbs. Is a 915 1/2 of this? Hard to imagine how it could be. So that said, when a G50 is said to be much heavier, were talking about 50-75 lbs? Definetly not enough to cause much of a notice. Especially in bloated late eighties cars like mine.

[Roland Kunz]

Hello

It will bolt up but the clutch is a problem.

You either have to manufacture a flywheel or a pressureplate

However the G50 trany will not fit into the 2,7 Carrera body.

The 950 trany wighst the same like the latest euro 915 with the oilcooler. The G50 was a bit heavier.

Other issues are the drive shafts from the G50 are different too.

Grüsse

[Roland Kunz]

Hello

I forgot to mention that the floorpan has to be "expanded" under the G50 shifter to clear the mechanismen.

Grüsse

[rcwtom]

Thanks guys
Sounds like its going to be too much work just to get a nicer gear change in my car

[Roland Kunz]

Hello

The G50 gearchange is different but not nicer !

Actuall wights from dry tranys in Al Si 8 Cu 3 material are:

915 with Oilcooler, front carrier and cluch TOB mechanismen: 60 kg
950 with carrier and cluch TOB mechanismen sans clutch slave cylinder 60 Kg.

With ZF limitet slip you can add 3-4 kg

Grüsse

[CBRacerX]

Danke Roland, I feel better about my G50 already!

Chris Brown
'87 Carrara w/3.6 plugging in shortly!

[Bill Verburg]

It would be interesting to see some weights of the G50s. I have never weighed one myself. Accordining to Steve Timmins website the G50 is 100# heavier than a 915. I find that hard to believe. Just monkey curiosity here, What was the source for your G50 weights Roland?

My 915/67 al case, cooler, pump, LSD, front carrier, clutch mechanism, no fluid, no starter weighs 122# (55.5 kg)

My similarly equipped mg case 915, w/o LSD weighs 95# (43kg) Both measurements done on certified/calibrated electronic scales.

Just from moving them around the G50 feels heavier, but that observation is not really significant.

[Roland Kunz]

Hello

The source is a bathroom unit that is 5% accurate. I need that thing to ship parts via mail or UPS

Anyway they are to heavy for UPS and get shiped in closed DB crate boxes.

Grüsse