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can anyone please help me out here?i need to know the top speed of my bike using the calculater in tips and tricks section but i dont have excel to open it ive got a 1987gsxr750 turbocharged..gear ratios are
1.74 pri
1st 2.769
2nd 2.062
3rd 1.647
4th 1.400
5th 1.22
6th 1.095
my final gearin in bike now 17 tooth front 38 back ive got a 18055 17 on it any help would be appreciated...i need 195-200mph gearing....thanx
 

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Originally posted by gsxrturbobike:
can anyone please help me out here?i need to know the top speed of my bike using the calculater in tips and tricks section but i dont have excel to open it ive got a 1987gsxr750 turbocharged..gear ratios are
1.74 pri
1st 2.769
2nd 2.062
3rd 1.647
4th 1.400
5th 1.22
6th 1.095
my final gearin in bike now 17 tooth front 38 back ive got a 18055 17 on it any help would be appreciated...i need 195-200mph gearing....thanx
<font size="2" face="Verdana, Arial">AWESOME MOD!!!!!
Got any charts? Where did you get it?!?!?!
I think you should take it off and sell it to me !

I should probably do this in the "test" area, oh well - here goes
Motorcycle Gearing Worksheet
Values (Enter) Total Ratio Minimum Speed Maximum Speed Speed at Max Power Change Down Speed Change Up Speed Speed Range RPM Drop at Change Up % RPM Drop at Change Up
Primary Drive Ratio 1.740 (KPH) (KPH) (KPH) (KPH) (KPH) (KPH) (RPM) (% RPM)
1st Gear Ratio 2.769 10.770 0 110 99 N/A 88 88 0 0.0
2nd Gear Ratio 2.062 8.020 30 148 133 59 118 59 2043 25.5
3rd Gear Ratio 1.647 6.406 37 185 167 74 148 74 1610 20.1
4th Gear Ratio 1.400 5.445 44 218 196 87 174 87 1200 15.0
5th Gear Ratio 1.220 4.745 50 250 225 100 200 100 1029 12.9
6th Gear Ratio 1.095 4.259 56 279 251 112 N/A 139 820 10.2
Front Sprocket (Teeth) 17 2.235
Rear Sprocket (Teeth) 38
Wheel Rim Size (Inches) 17
Tyre Width (MM) 180 Gear (MPH) (MPH) (MPH) (MPH) (MPH) (MPH) (RPM) (% RPM)
Tyre Depth (%) 55 1st Gear 0 69 62 N/A 55 55 0 0.0
Engine Minimum RPM 2,000 2nd Gear 19 93 83 37 74 37 2043 25.5
Engine Maximum RPM 10,000 3rd Gear 23 116 104 46 93 46 1610 20.1
Change Down RPM 4,000 4th Gear 27 136 123 55 109 55 1200 15.0
Change Up RPM 8,000 5th Gear 31 156 141 63 125 63 1029 12.9
Maximum Power RPM 9,000 6th Gear 35 174 157 70 N/A 87 820 10.2
(Enter ALL figures in the Pink column from the owners handbook. Example tyre size shown above is 190/50-17. [[email protected] 3/00])
 

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Well, it's not pretty but you can kinda sorta read it. If you can make heads & tails of those numbers, then this set/chart will get you a top speed of 201mph with your tranny gearing + 29 tooth rear sprocket and a 15 tooth front.
Motorcycle Gearing Worksheet Motorcycle Gearing Worksheet
Values (Enter) Total Ratio Minimum Speed Maximum Speed Speed at Max Power Change Down Speed Change Up Speed Speed Range RPM Drop at Change Up % RPM Drop at Change Up
Primary Drive Ratio 1.740 (KPH) (KPH) (KPH) (KPH) (KPH) (KPH) (RPM) (% RPM)
1st Gear Ratio 2.769 9.315 0 127 115 N/A 102 102 0 0.0
2nd Gear Ratio 2.062 6.937 34 171 154 68 137 68 2043 25.5
3rd Gear Ratio 1.647 5.541 43 214 193 86 171 86 1610 20.1
4th Gear Ratio 1.400 4.710 50 252 227 101 202 101 1200 15.0
5th Gear Ratio 1.220 4.104 58 289 260 116 231 116 1029 12.9
6th Gear Ratio 1.095 3.684 64 322 290 129 N/A 161 820 10.2
Front Sprocket (Teeth) 15 1.933
Rear Sprocket (Teeth) 29
Wheel Rim Size (Inches) 17
Tyre Width (MM) 180 Gear (MPH) (MPH) (MPH) (MPH) (MPH) (MPH) (RPM) (% RPM)
Tyre Depth (%) 55 1st Gear 0 80 72 N/A 64 64 0 0.0
Engine Minimum RPM 2,000 2nd Gear 21 107 96 43 86 43 2043 25.5
Engine Maximum RPM 10,000 3rd Gear 27 134 121 54 107 54 1610 20.1
Change Down RPM 4,000 4th Gear 32 158 142 63 126 63 1200 15.0
Change Up RPM 8,000 5th Gear 36 181 163 72 145 72 1029 12.9
Maximum Power RPM 9,000 6th Gear 40 201 181 81 N/A 101 820 10.2
(Enter ALL figures in the Pink column from the owners handbook. Example tyre size shown above is 190/50-17. [[email protected] 3/00])

A 17/33 should get you 201 also. Sorry about the first one. And in case you couldn't read the post above this one the top MPH for the 17/38 was 174.

[ 04-28-2002, 11:07 PM: Message edited by: 88/750 ]
 
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