RING AND PINION
02-27-2008, 05:31 PM
#1
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RING AND PINION
Dear friends,
sorry I could not find this info searching the forum.
what Ring and Pinion should I order to reduce the gears of my euro 993s?....I would prefer FVD ones but I do not know wich of them is the right one for street and occasional track use.
Any advise about labour cost will be apreciated
thanks
sorry I could not find this info searching the forum.
what Ring and Pinion should I order to reduce the gears of my euro 993s?....I would prefer FVD ones but I do not know wich of them is the right one for street and occasional track use.
Any advise about labour cost will be apreciated
thanks
02-27-2008, 07:37 PM
#5
02-27-2008, 10:32 PM
#6
Stock g50/21
The worst 2 features of the stocl /21 are the short 1 and the over long 6
changing to 8:32 makes 1 way too short and 6 too short for most road use.
here's a pretty nice and reasonbly priced alternative. Just use a slightly shorter 6
PHP Code:
Car G50/21 RoW 993
Ratio
Ring & Pinion 9:31 3.444 Tire Diameter 24.6 Inches 265/35x18
Gear Selection Speed (mph) RPM
Ratio Max RPM @ Max RPM Next Gear RPM Drop
1st 1 11:42 3.818 6500 36.2 3660 2840
2nd 6 20:43 2.150 6500 64.2 4716 1784
3rd 15 25:39 1.560 6500 88.5 5177 1323
4th 29 33:41 1.242 6500 111.2 5373 1127
5th 15 37:38 1.027 6500 134.5 5193 1307
6th 23 39:32 0.821 6500 168.3
PHP Code:
Car G50/21 RoW 993
Ratio
Ring & Pinion 2 8:32 4.000 Tire Diameter 24.6 Inches 265/35x18
Gear Selection Speed (mph) RPM
Ratio Max RPM @ Max RPM Next Gear RPM Drop
1st 1 11:42 3.818 6500 31.1 3660 2840
2nd 6 20:43 2.150 6500 55.3 4716 1784
3rd 15 25:39 1.560 6500 76.2 5177 1323
4th 29 33:41 1.242 6500 95.7 5373 1127
5th 15 37:38 1.027 6500 115.8 5193 1307
6th 23 39:32 0.821 6500 144.9
changing to 8:32 makes 1 way too short and 6 too short for most road use.
here's a pretty nice and reasonbly priced alternative. Just use a slightly shorter 6
PHP Code:
Car G50/21 RoW 993
Ratio
Ring & Pinion 1 9:31 3.444 Tire Diameter 24.6 Inches 265/35x18
Gear Selection Speed (mph) RPM
Set # Ratio Max RPM @ Max RPM Next Gear RPM Drop
1st 1 11:42 3.818 6500 36.2 3660 2840
2nd 6 20:43 2.150 6500 64.2 4716 1784
3rd 15 25:39 1.560 6500 88.5 5177 1323
4th 29 33:41 1.242 6500 111.2 5373 1127
5th 15 37:38 1.027 6500 134.5 5456 1044
6th 20 29:25 0.862 6500 160.2
02-28-2008, 04:13 PM
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many thanks,
I heard that S model have even longer gearing than std 993.
For my likings, 1st is unusable, 2nd is sometimes too long, 3rd makes a big drop compared to 2nd....rest of them are ok for me.
...maybe I will go for 9:31
thanks again for your help
I heard that S model have even longer gearing than std 993.
For my likings, 1st is unusable, 2nd is sometimes too long, 3rd makes a big drop compared to 2nd....rest of them are ok for me.
...maybe I will go for 9:31
thanks again for your help
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02-28-2008, 11:46 PM
#10
PHP Code:
Car g50/52 '91 964turbo
Set # Ratio
Ring & Pinion 1 9:31 3.444 Tire Diameter 25.6 Inches
Gear Selection Speed (mph) RPM
Set # Ratio Max RPM @ Max RPM Next Gear RPM Drop
1st 1 13:41 3.154 6500 45.6 3688 2812
2nd 11 19:34 1.789 6500 80.3 4610 1890
3rd 20 26:33 1.269 6500 113.2 4951 1549
4th 25 30:29 0.967 6500 148.7 5084 1416
5th 10 41:31 0.756 6500 190.1
6th
02-29-2008, 02:36 AM
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Location: Bend Oregon
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Paul Guard
Call Mike at Paul Guard near Sacto. He will run computer models for you. R&P is $2405.
That first gear becomes a stump puller eludes me. Top speed stock---39mph SHort R&P 34 mph. If 34 MPH is a useless gear now I guess I will be launching in second. .
Guard 503 878 4499--no affl.etc tho I could not believe the amount of time they took to explain things. By the time I got off the phone with Mike and Paul they felt like family.
Details---, PM me with your phone number.
That first gear becomes a stump puller eludes me. Top speed stock---39mph SHort R&P 34 mph. If 34 MPH is a useless gear now I guess I will be launching in second. .
Guard 503 878 4499--no affl.etc tho I could not believe the amount of time they took to explain things. By the time I got off the phone with Mike and Paul they felt like family.
Details---, PM me with your phone number.