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Post by billwill on Apr 30, 2024 18:57:31 GMT -5
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Post by billwill on May 5, 2024 19:18:50 GMT -5
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Post by Zino on May 6, 2024 7:00:17 GMT -5
Reference pigs build he was running more extreme gearing than you on one of his pre-bug builds he was going to go to 9 to 1 gearing from 11 to 1 which is where you are at right now with gears 49ccscoot.proboards.com/thread/17391/pigs-65mph-2002-70cc-prebugYour higher rolling resistance over stock tires over stock is probably holds you back a few mph along with the wall of wind you are fighting through as you increase speed Per the speed list and my experience on the now defunct Zuma forums on these 2 stroke 70cc a ton of verified 50 mph builds with just a few over 65 mph and hardly any breaking the 70 mph . Those last few mph are so hard to get but they sure are fun to chase if you have the budget and time .
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Post by billwill on May 6, 2024 11:30:26 GMT -5
Reference pigs build he was running more extreme gearing than you on one of his pre-bug builds he was going to go to 9 to 1 gearing from 11 to 1 which is where you are at right now with gears 49ccscoot.proboards.com/thread/17391/pigs-65mph-2002-70cc-prebugYour higher rolling resistance over stock tires over stock is probably holds you back a few mph along with the wall of wind you are fighting through as you increase speed Per the speed list and my experience on the now defunct Zuma forums on these 2 stroke 70cc a ton of verified 50 mph builds with just a few over 65 mph and hardly any breaking the 70 mph . Those last few mph are so hard to get but they sure are fun to chase if you have the budget and time . Yes dude! Man, if I had a nickel for every time I pulled up PIG's build thread, I would be a rich man right now! Wealth of information in there and I've referenced a TON of what he has done. We are at the same gearing right now at 11:1 final drive. I really do think it is the wheels holding me back right now. He also lightened the stock flywheel and I've done nothing with the ignition. Pig, if you see this, I'm curious what your overall transmission setup was. I gather you were running something like 3.5g rollers but could never find anything on torque spring.
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Post by billwill on May 6, 2024 20:50:51 GMT -5
Think I can chock this up to the big wheels. Been chatting and following a buddy's build on one of the Facebook groups and we have similar setups. He was hitting 70/71mph with a particular setup and 10" wheels and just moved up to 12" wheels and a larger tire. He just went out for some top speed runs and got the following result. He is also running 15/50 gearing like I am. Here is our tires side by side: I am going to try going all the way back down to stock gearing and see what happens. So is he. Exciting times. Between this and the ignition, I'll be she has 70 in her.
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