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Do I have short gears in my G-50?
I have a G-50/5speed in my 1988 Turbo converted from the 4 speed. Its the G50 and not the G50/50. I love the ratio between gears but noticed at 60 mph in 5th gear, my RPM's were at 2800. In the performance handbook it showed that it should be around 2000 RPM's at 60 mph if it were stock. Any idea what the previous owner did with the tranny during the conversion? Thank you...
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Join Date: Jun 2001
Location: Sweden
Posts: 5,911
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Sounds like you have "short" ring & pinion... good for autoX-ing
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Thank you for your time, |
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Join Date: Dec 2001
Location: MA USA
Posts: 2,938
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The G50/50 has much taller gearing than the regular G50. I think you have standard G50 gearing. In my G50 the gearing is close to the 915. So 1st, 2nd and 3rd are good for about 33 mph, 63, and 93. I also really like the gearing of the G50
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Dean 911 SC turbo, 3.0L 930 motor, G50, 930 brakes, DTA EFI, 352 RWHP DynoDynamic dyno, |
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Join Date: Oct 2002
Location: St. Louis region
Posts: 3,147
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I'll tell you what, there's nothing better than winding a G50 out in 3rd and then experiencing that lovely close-ratio shift to 4th.
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Deceased: Black '88 Carrera Coupe, Steve Wong and Russell Berry chips, Dansk premuffler, custom MK GT3-style muffler, Magnecores. Al Reed 7 & 8 X 16 Fuchs. Full Elephant Racing suspension, 21/28 T-bars, Turbo tierods, bump steer kit, Bilstein Sports, BK strut bar. Ruf bumpers, 935 mirrors, Carrera 3.0 tail, DasSport bar. '11 BMW 328iX, '18 Nissan Frontier 4X4, '92 Acura NSX. |
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A G50/01 should be turning about 2500 rpm at 60 mph with 25" dia tires. A G50/50 would be 2100 rpm at 60.
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2014 Cayman S (track rat w/GT4 suspension) 1979 930 (475 rwhp at 0.95 bar) |
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