When to install 3.63 gears?
#23
Stock 5 speed 3.63 Wide Close
1st 3.163 42.8 18.93939394 25.69444444
2nd 1.888 71.7 11.48148148 17.86941581
3rd 1.333 101.5 4.245283019 6.966086159
4th 1 135.3 0 0
5th 0.814 166.3 2.406103286 8.268229167
6th -- --
Quaife Wide 3.63
1st 2.564 52.8
2nd 1.67 81
3rd 1.277 106
4th 1 135.3
5th 0.794 170.4
6th -- --
Quaife Close 3.63
1st 2.35 57.6
2nd 1.55 87.3
3rd 1.24 109.1
4th 1 135.3
5th 0.881 153.6
6th -- --
6 speed 3.63
1st 3.76 36 31.81818182 37.5
2nd 2.269 59.6 26.41975309 31.72966781
3rd 1.645 82.3 22.35849057 24.56461962
4th 1.257 107.7 20.39911308 20.39911308
5th 1 135.3 20.59859155 11.9140625
6th 0.843 160.5 #VALUE! #VALUE!
Cliff notes: average % differences
5 speed to quaife close: 7.414452345
5 speed to quaife wide: 11.75963512
6 speed to quaife close: 24.31882602
6 speed to quaife wide: 25.2214926
#24
I tried 3.63s in Theseus at ~240whp and 5th was really doggy. At 320whp it felt right. At 350+whp I am out of gear in 5th and 6th in too many places, so I am going back to 3.63s.
3rd has very little to do with it - I really want the 3.63s in my car because I want the extra speed in 5th and 6th.
3rd has very little to do with it - I really want the 3.63s in my car because I want the extra speed in 5th and 6th.
It is interesting driving the Pro3 car in that the car seems to be faster around the track with gearing such that it will probably hit the rev limiter on the front straight but you get better 4th gear rev range for linking turns 3 through 7.
Bob
#25
Actually not....percent differences below
Stock 5 speed 3.63 Wide Close
1st 3.163 42.8 18.93939394 25.69444444
2nd 1.888 71.7 11.48148148 17.86941581
3rd 1.333 101.5 4.245283019 6.966086159
4th 1 135.3 0 0
5th 0.814 166.3 2.406103286 8.268229167
6th -- --
Quaife Wide 3.63
1st 2.564 52.8
2nd 1.67 81
3rd 1.277 106
4th 1 135.3
5th 0.794 170.4
6th -- --
Quaife Close 3.63
1st 2.35 57.6
2nd 1.55 87.3
3rd 1.24 109.1
4th 1 135.3
5th 0.881 153.6
6th -- --
6 speed 3.63
1st 3.76 36 31.81818182 37.5
2nd 2.269 59.6 26.41975309 31.72966781
3rd 1.645 82.3 22.35849057 24.56461962
4th 1.257 107.7 20.39911308 20.39911308
5th 1 135.3 20.59859155 11.9140625
6th 0.843 160.5 #VALUE! #VALUE!
Cliff notes: average % differences
5 speed to quaife close: 7.414452345
5 speed to quaife wide: 11.75963512
6 speed to quaife close: 24.31882602
6 speed to quaife wide: 25.2214926
Stock 5 speed 3.63 Wide Close
1st 3.163 42.8 18.93939394 25.69444444
2nd 1.888 71.7 11.48148148 17.86941581
3rd 1.333 101.5 4.245283019 6.966086159
4th 1 135.3 0 0
5th 0.814 166.3 2.406103286 8.268229167
6th -- --
Quaife Wide 3.63
1st 2.564 52.8
2nd 1.67 81
3rd 1.277 106
4th 1 135.3
5th 0.794 170.4
6th -- --
Quaife Close 3.63
1st 2.35 57.6
2nd 1.55 87.3
3rd 1.24 109.1
4th 1 135.3
5th 0.881 153.6
6th -- --
6 speed 3.63
1st 3.76 36 31.81818182 37.5
2nd 2.269 59.6 26.41975309 31.72966781
3rd 1.645 82.3 22.35849057 24.56461962
4th 1.257 107.7 20.39911308 20.39911308
5th 1 135.3 20.59859155 11.9140625
6th 0.843 160.5 #VALUE! #VALUE!
Cliff notes: average % differences
5 speed to quaife close: 7.414452345
5 speed to quaife wide: 11.75963512
6 speed to quaife close: 24.31882602
6 speed to quaife wide: 25.2214926
Bob
#26
Thats what I've got. Although I do plan to do some street driving I dont think it will be terribly difficult from a launch as I can start my 116 hp beater in second with little hesitation(4.1 rear) and 1st gear in the quaife set is basically a second with a stock 5 speed setup. Also, considering I will street driving with a ~350 whp tune, 1.9L motor, it should provide a few extra ft lbs down low
#28
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Thats what I've got. Although I do plan to do some street driving I dont think it will be terribly difficult from a launch as I can start my 116 hp beater in second with little hesitation(4.1 rear) and 1st gear in the quaife set is basically a second with a stock 5 speed setup. Also, considering I will street driving with a ~350 whp tune, 1.9L motor, it should provide a few extra ft lbs down low
#30
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Actually, it is - you just don't realize it.
These are organized from the closest to the furthest away from the 6-speed ratios, based on percentage difference from the 6-speed ratio.
If you have the close-ratio box, you basically just have a 6-speed with no 1st gear. If you have the wide-ratio box, it's a little different, but still not closer to the 5-speed overall.
To prove my point, let's look at the 5-speed ratios. The percentages here are referenced from the 5-speed ratio.
The only point at which the factory 5-speed gets closer than the 6-speed to EITHER Quaife box is in top gear, where the Quaife Wide's 5th gear is closer to the 5-speed than it is to the 6-speed. In every other gear, the 6-speed's ratios are closer.
These are organized from the closest to the furthest away from the 6-speed ratios, based on percentage difference from the 6-speed ratio.
- Stock 6-speed 2nd gear - 2.269 - 0%
- Quaife Close-ratio 1st gear - 2.350 - 3.6% shorter
- Quaife Wide-ratio 1st gear - 2.564 - 13% shorter
- Stock 6-speed 3rd gear - 1.645
- Quaife Wide-ratio 2nd gear - 1.670 - 2% shorter
- Quaife Close-ratio 2nd gear - 1.550 - 6% taller
- Stock 6-speed 4th gear - 1.257
- Quaife Close-ratio 3rd gear - 1.240 - 1% taller
- Quaife Wide-ratio 3rd gear- 1.277 - 2% shorter
- Stock 6-speed 5th gear - 1.0 - same as 4th in the 5-speeds
- Stock 6-speed 6th gear - 0.843
- Quaife Close-ratio 5th gear - 0.881 - 5% shorter
- Quaife wide-ratio 5th gear - 0.794 - 6% taller
If you have the close-ratio box, you basically just have a 6-speed with no 1st gear. If you have the wide-ratio box, it's a little different, but still not closer to the 5-speed overall.
To prove my point, let's look at the 5-speed ratios. The percentages here are referenced from the 5-speed ratio.
- Stock 5-speed 1st gear - 3.163 - 0%
- Quaife Wide-ratio 1st gear - 2.564 - 19% taller
- Quaife Close-ratio 1st gear - 2.350 - 26% taller
- Stock 5-speed 2nd gear - 1.888
- Quaife Wide-ratio 2nd gear - 1.670 - 12% taller
- Quaife Close-ratio 2nd gear - 1.550 - 18% taller
- Stock 5-speed 3rd gear - 1.333
- Quaife Wide-ratio 3rd gear - 1.277 - 4% taller
- Quaife Close-ratio 3rd gear- 1.240 - 7% shorter
- Stock 5-speed 4th gear - 1.0 - same as 4th in the Quaifes
- Stock 5-speed 5th gear - 0.814
- Quaife Wide-ratio 5th gear - 0.794 - 2% taller
- Quaife Close-ratio 5th gear - 0.881 - 8% shorter
The only point at which the factory 5-speed gets closer than the 6-speed to EITHER Quaife box is in top gear, where the Quaife Wide's 5th gear is closer to the 5-speed than it is to the 6-speed. In every other gear, the 6-speed's ratios are closer.
#31
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Location: Sunnyvale, CA
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Organized another way:
Quaife Close-ratio (percentages referenced from Quaife-Close):
Quaife Wide-Ratio (referenced from Quaife Wide):
Quaife Close-ratio (percentages referenced from Quaife-Close):
- 1st gear - 2.350
- 6-speed - 2.269 - 3% taller
- 5-speed - 3.163 - 35% shorter
- 2nd gear - 1.55
- 6-speed - 1.645 - 6% shorter
- 5-speed - 1.888 - 22% shorter
- 3rd gear - 1.240
- 6-speed - 1.257 - 1% shorter
- 5-speed - 1.333 - 7.5% shorter
- 4th gear - 1.000
- 5th gear - 0.881
- 6-speed - 0.843 - 4% taller
- 5-speed - 0.814 - 8% taller
Quaife Wide-Ratio (referenced from Quaife Wide):
- 1st gear - 2.564
- 6-speed - 2.269 - 12% taller
- 5-speed - 3.163 - 23% shorter
- 2nd gear - 1.670
- 6-speed - 1.645 - 1% taller
- 5-speed - 1.888 - 13% shorter
- 3rd gear - 1.277
- 6-speed - 1.257 - 2% taller
- 5-speed - 1.333 - 4% shorter
- 4th gear - 1.000
- 5th gear - 0.794
- 5-speed - 0.814 - 3% shorter
- 6-speed - 0.843 - 6% shorter
#33
Organized another way:
Quaife Close-ratio (percentages referenced from Quaife-Close):
Quaife Wide-Ratio (referenced from Quaife Wide):
Quaife Close-ratio (percentages referenced from Quaife-Close):
- 1st gear - 2.350
- 6-speed - 2.269 - 3% taller
- 5-speed - 3.163 - 35% shorter
- 2nd gear - 1.55
- 6-speed - 1.645 - 6% shorter
- 5-speed - 1.888 - 22% shorter
- 3rd gear - 1.240
- 6-speed - 1.257 - 1% shorter
- 5-speed - 1.333 - 7.5% shorter
- 4th gear - 1.000
- 5th gear - 0.881
- 6-speed - 0.843 - 4% taller
- 5-speed - 0.814 - 8% taller
Quaife Wide-Ratio (referenced from Quaife Wide):
- 1st gear - 2.564
- 6-speed - 2.269 - 12% taller
- 5-speed - 3.163 - 23% shorter
- 2nd gear - 1.670
- 6-speed - 1.645 - 1% taller
- 5-speed - 1.888 - 13% shorter
- 3rd gear - 1.277
- 6-speed - 1.257 - 2% taller
- 5-speed - 1.333 - 4% shorter
- 4th gear - 1.000
- 5th gear - 0.794
- 5-speed - 0.814 - 3% shorter
- 6-speed - 0.843 - 6% shorter
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