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Post by wideopen on Feb 9, 2014 20:49:37 GMT -5
I'm maxing out rpms 8k at 60 mph I know I can get more top speed out of it my current gears are stock I counted 18-42 on the transmission gears. what gears are you running?
mods: 61mm 170BBK/matching head non-egr A9 camshaft springs,retainers YMS V8 free flow exhaust 28mm cvk 40pilot,120main UNI pod filter KOSO Racing 115m variator 12 gram sliders NCY
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Post by millsc on Feb 9, 2014 20:57:41 GMT -5
My stock gears were 13 40 I switched to 15 37 and gained around 6 mph and dropped my rpms down 500 rpms.
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Post by wideopen on Feb 9, 2014 21:06:27 GMT -5
My stock gears were 13 40 I switched to 15 37 and gained around 6 mph and dropped my rpms down 500 rpms. rapid response thanks, I ment to mention this is a qmj 157 150cc are u running that setup on a 150? |
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Post by alleyoop on Feb 9, 2014 21:16:51 GMT -5
I'm maxing out rpms 8k at 60 mph I know I can get more top speed out of it my current gears are stock I counted 18-42 on the transmission gears. what gears are you running?
mods: 61mm 170BBK/matching head non-egr A9 camshaft springs,retainers YMS V8 free flow exhaust 28mm cvk 40pilot,120main UNI pod filter KOSO Racing 115m variator 12 gram sliders NCY
I think your counting the teeth(42) on the Reduction Gear that is pressed onto the counter shaft which are usually 42 teeth on the 157qmjs. I have the 157qmj with 62mm and 60mm stroker 182ccs. I currently have 16 counter shaft and 37 final drive gear. The reduction gear pressed on is still 42 teeth. And I am going to put in 18/36 gears I already had a 42 reduction gear pressed onto the 18 tooth counter shaft. It is just to cold right now to tear into it and change out the 16/37 out. Originally it came with 13/40. Alleyoop  |
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Post by millsc on Feb 9, 2014 21:38:28 GMT -5
I just put a stroker on mine also and a bigger carb 61mm piston with a 61mm stroker for 177cc I may go with a taller set also if my rpms go up too high but I like the torque response from the 15 37 set
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Post by wideopen on Feb 10, 2014 0:15:15 GMT -5
I just put a stroker on mine also and a bigger carb 61mm piston with a 61mm stroker for 177cc I may go with a taller set also if my rpms go up too high but I like the torque response from the 15 37 set what is your top speed on the 15 37 set? |
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Post by millsc on Feb 10, 2014 0:23:34 GMT -5
Haven't tested my new set up will be finished tomorrow. I could do 64 GPS without the stroker with awesome acceleration. I ran it with a 26mm carb. I hope to cruise at 60 GPS at 3/4 throttle after the stroker. It did 72 on Speedo before the crank which was 64 gps
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..BAD TO THE BONE..