Hallo
Want to purchase the transaxle for my future GT 40.
Got an offer for a G50/04 ( switzerland)
I took some informations from a previous post.
Following this the G50/02 gearratios are pretty similar to the ones of the 04( in the 04 the 4th gear is a little longer).
So now i wonder what the comment "(very short gear ratios)" on the G50/02 meant.
By reading the gear ratios i would say that the 04 has longer ratios than the 03 but as the 5th gear has the same as an 03 they are just closer spaced. May be this is meant by the comment ?
I´m plan to go for a 331 engine which will peak power (app 450 -500 Hp) around 7200 RPM and also will go for 10,5X17" Wheels ( 315/35/17)
PUtting these datas into the very nice excel chart provided on this forum ( thank you) it looks pretty good to me
Speed at 7200:
1st 82 km/h 51 mph-------RPMDROP
2nd 136 km/h 85 mph-----2900
3rd 194 km/h 121 mph----2150
4th 251 km/h 156 mph----1650
5th 291 km/h 181 mph----1000
This top speed will put me in good situation vs the P´s on track days.
Also the RPM drop looks reasonable to me.
The 04 will be equipped with a 40/60 LSD.
Will also beef up the sideplates and install a external oil pump and oil cooler to spray the ring and pinion and gears.
Has anyone used a G50/04 ( i think the post 92 US models had it also) ?
Is there any other difference than the ratios compared to the 03?
What is your experience with the side shift conversions ( i would love to have the slim look of a flat endplate)?
Any other comments very welcome
Thanks
TOM
Transmission types:
* G50/00 = 911 Carrera, R.o.W.
* G50/01 = 911 Carrera, USA/CND/J/AUS
* G50/02 = 911 Switzerland (very short gear ratios)
* G50/50 = 911 Turbo world wide, 1989 only
* G50/52 = later Porsche turbo boxes ZF ltd. slip
Visit Powerhaus II for alternative gear ratios for those that want 200mph!
Gear
Transaxle 1 2 3 4 5 Notes
G50/00 3.5 2.059 1.409 1.074 0.861 (after 1988 0.868) Final drive ratio 9:31
G50/01 3.5 2.059 1.409 1.125 0.889 (after 1988 0.892)
G50/02 3.154 1.895 1.333 1.036 0.861 (after 1988 0.868)
G50/03 3.5 2.059 1.407 1.086 0.868
G50/04 3.154 1.895 1.333 1.029 0.868
G50/05 3.5 2.059 1.407 1.086 0.868 Final drive ratio: 3.333:1
G50/10 3.154 1.895 1.407 1.086 0.868
G50/50 3.154 1.789 1.269 0.967 0.756 Beefier internals, differential cover, and case
G50/52 3.154 1.789 1.269 0.967 0.756 Not as strong as G50/50
Want to purchase the transaxle for my future GT 40.
Got an offer for a G50/04 ( switzerland)
I took some informations from a previous post.
Following this the G50/02 gearratios are pretty similar to the ones of the 04( in the 04 the 4th gear is a little longer).
So now i wonder what the comment "(very short gear ratios)" on the G50/02 meant.
By reading the gear ratios i would say that the 04 has longer ratios than the 03 but as the 5th gear has the same as an 03 they are just closer spaced. May be this is meant by the comment ?
I´m plan to go for a 331 engine which will peak power (app 450 -500 Hp) around 7200 RPM and also will go for 10,5X17" Wheels ( 315/35/17)
PUtting these datas into the very nice excel chart provided on this forum ( thank you) it looks pretty good to me
Speed at 7200:
1st 82 km/h 51 mph-------RPMDROP
2nd 136 km/h 85 mph-----2900
3rd 194 km/h 121 mph----2150
4th 251 km/h 156 mph----1650
5th 291 km/h 181 mph----1000
This top speed will put me in good situation vs the P´s on track days.
Also the RPM drop looks reasonable to me.
The 04 will be equipped with a 40/60 LSD.
Will also beef up the sideplates and install a external oil pump and oil cooler to spray the ring and pinion and gears.
Has anyone used a G50/04 ( i think the post 92 US models had it also) ?
Is there any other difference than the ratios compared to the 03?
What is your experience with the side shift conversions ( i would love to have the slim look of a flat endplate)?
Any other comments very welcome
Thanks
TOM
Transmission types:
* G50/00 = 911 Carrera, R.o.W.
* G50/01 = 911 Carrera, USA/CND/J/AUS
* G50/02 = 911 Switzerland (very short gear ratios)
* G50/50 = 911 Turbo world wide, 1989 only
* G50/52 = later Porsche turbo boxes ZF ltd. slip
Visit Powerhaus II for alternative gear ratios for those that want 200mph!
Gear
Transaxle 1 2 3 4 5 Notes
G50/00 3.5 2.059 1.409 1.074 0.861 (after 1988 0.868) Final drive ratio 9:31
G50/01 3.5 2.059 1.409 1.125 0.889 (after 1988 0.892)
G50/02 3.154 1.895 1.333 1.036 0.861 (after 1988 0.868)
G50/03 3.5 2.059 1.407 1.086 0.868
G50/04 3.154 1.895 1.333 1.029 0.868
G50/05 3.5 2.059 1.407 1.086 0.868 Final drive ratio: 3.333:1
G50/10 3.154 1.895 1.407 1.086 0.868
G50/50 3.154 1.789 1.269 0.967 0.756 Beefier internals, differential cover, and case
G50/52 3.154 1.789 1.269 0.967 0.756 Not as strong as G50/50
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