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Post by pitobread on Mar 26, 2020 10:39:54 GMT -5
I get some downright insane comments on my channel too. You just can't do right by everyone. No matter how hard you try.
I loved the new video.
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Post by 90GTVert on Mar 26, 2020 14:00:04 GMT -5
Well, I'm fixin' to disappoint YouTube again. It has been windy here most of the time lately, but the middle of today let up to 2-5MPH winds. About as good as I'm likely to get. I put a new belt on and moved my spacers from between the drive boss and fixed half to outside under the starter pawl. Trying to get max belt travel that way, just as I did with the Peace Pipe (67.7MPH).
I did 3-4 tries and got between 70-72MPH every time. RPM got as high as 14,100.
Then I thought maybe I could squeeze out a hair more with heavier sliders if that would lower RPM at speed and it wasn't just maxed out.
I put in 6g sliders (was 4.75g) and did 73MPH @ 13,300RPM on my best pass. Again it was 70-73 across multiple passes.
Maybe I could spend a bunch of time swapping weights and doing run after run and pull 74 out of it if I got lucky, but I kinda think it's about maxed out because of horsepower.
YouTube thinks I should be doing 80+, because everyone with a 70cc does at least 70MPH. They also think I need different gearing and I'll go faster. I think that's baloney and I'd do roughly the same speed with likely slower acceleration. If it was capable of much higher speed, then I think it would have kept pulling more than 1MPH difference when the 6g weights let it rev less. That said, I don't claim to know everything and I know enough to know that there are people that are way smarter than I'll ever dream to be.
I think I'm gonna try the stock 10.1:1 gearing (currently 11.2:1) in the name of science. More accurately, either YouTube is gonna teach me something or I'm gonna teach them something. I'm kidding. I could never teach some of the pros anything. Maybe I'll be able to spread good information instead of wishful thinking to those willing to take it in though. Not thrilled about swapping around the gearbox to check top speed numbers that I don't really care about, but again it may be interesting and/or educational. Maybe this works like a turbo car kinda and the 2T will like the load from taller gearing and turn into a rocket.
Aside from the exhaust being all wrong and the gearing, the other thing up in the air is my carb size. Some still think a 25mm PHBL is not enough. One suggestion says to try a 32mm. I don't want to have to build a sidecar for a carb so I don't think I'll ever try one that big on this. I don't really buy into the carb stuff either. I've always seemed to make do with smaller carbs just fine (of course I am always 10MPH slower than normal with everything I own), but then I have seen people on the forum put on bigger carbs and claim to pick up power/speed when I thought they should have been good enough. Not happening right now anyway, but I'm always open to thoughts. It's not like I have any past experience with 14,000RPM setups. Maybe I swap out the airbox for a pod filter and get that 80MPH the easy way?
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Post by oldgeek on Mar 26, 2020 14:25:47 GMT -5
I think the easy way would be to reduce your payload. At least that's the problem I have. Every time I let my feather weight buddy ride mine, he easily gets it to go faster than I do, and says "it had more but I let off"
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Post by Kenho21 on Mar 26, 2020 15:48:29 GMT -5
I think the easy way would be to reduce your payload. At least that's the problem I have. Every time I let my feather weight buddy ride it, he gets it to go faster than I do, and says "it had more but I let off" Honesltly, that's been the biggest performance gain I've ever seen lol. I broke both of my feet about 6 months apart a year or so ago. I usually weigh 175-185 lbs. and got up to about 215 lbs. right after I got my scoot and broke my first foot, so I didn't notice any change in performance. Then, in between broken feet I got back into running and exercise and lost the weight and noticed I was getting about 5 mph more top speed and pulling wheelies with no changes to my scoot. Then, toward the end of that season, I broke my second foot and put the weight back on and got 5 mph slower and no more wheelies and that was after I did some mods to the CVT that actually helped performance. The weight gain seemed to completely negate the performance improvements and even overcome them negatively. Breaking feet sucks real bad, but it was an interesting proof-of-concept experiment for me and enough to thoroughly convince me rider weight makes a big difference. Now, after my second broken foot has healed, I'm finally getting back in to shape and I'd be lying if I said part of my motivation wasn't faster scooting hahaha.
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Post by Jwhood on Mar 26, 2020 16:13:38 GMT -5
I notice a big difference in power and acceleration when I jumped to a bigger carb plus worse gas mileage lol
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Post by 90GTVert on Mar 26, 2020 16:35:22 GMT -5
I think the easy way would be to reduce your payload. At least that's the problem I have. Every time I let my feather weight buddy ride it, he gets it to go faster than I do, and says "it had more but I let off" That's the hard part for me. I don't really have anyone around that would ride the scoot and my waistline hasn't been shrinking. I've got much lighter friends that ride (or used to), but they've all got too many wives and kids and better things to do than ride a scooter anymore. It would be like pulling teeth and I just don't like asking for favors that much. One of 'em says he'd like to try the TMAX sometime and see what that's like. I've been at his house with it on a few occasions when he's said it, and I'm like "here... take it around the neighborhood" and then I get "I want to, but not now". When I struggled with 50MPH out of the old 4T SunL long ago, I was up to ~48MPH. A 150lb friend came over and went ~52MPH just as it sat. The acceleration difference is much more frustrating to me. T2 should go hard with a light rider. #FatGuyProblems Thankfully I have this to reassure me. I seem to be pretty well on par with slightly better verified numbers, all things considered. 49ccscoot.proboards.com/thread/11206/scoot-speed-list
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Post by jloi on Mar 26, 2020 21:57:15 GMT -5
that scoot would scream with me on it . probably about 85 right ? should take me about a week to hitch up there
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Post by Jwhood on Mar 27, 2020 5:30:25 GMT -5
My daughter wants to come down o.c for her birthday Saturday April 18th might stop by would of like to have my Honda built and running by then but don't think I will be ready as I'm still waiting on parts
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Post by 90GTVert on Mar 27, 2020 7:09:24 GMT -5
My daughter wants to come down o.c for her birthday Saturday April 18th might stop by would of like to have my Honda built and running by then but don't think I will be ready as I'm still waiting on parts You may want to keep an eye on the page below. As of now, the beach and boardwalk and nearly everything is closed till April 15th and will then be re-evaluated. Everything is kinda unknown ATM. oceancitymd.gov/oc/coronavirus-information/
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Post by 90GTVert on Mar 27, 2020 13:27:12 GMT -5
I talked to a friend today and he had watched my last vid. I told him about my speed checks and that YouTube thinks it should be faster. He said "you want me to ride it and see what happens?". So he's probably going to be doing less work ATM and says maybe he can come over one day. He's about 190 I think he said, so 110lb lighter than I am. He hasn't been on a bike since he sold his crotch rocket 5 years ago or more, so he says he wants to ride around for a few first. Told me he'd drop off his helmet sometime so I could figure out a GoPro mount. We'll see if it actually happens. If it does, then T2 and the TMAX are gonna race while we're at it.
I rode T2 through the larger nearby town today. It has turned into even more of an oddity and attention getter than usual. I was just waiting to get pulled over. 13,500-14,000RPM sounds really good on a narrow street with brick buildings on both sides though.
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Post by jloi on Mar 27, 2020 13:57:39 GMT -5
hey that's great - a diff weight. hope it happens . can't wait to see that one
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Post by 90GTVert on Mar 27, 2020 16:37:16 GMT -5
"hi Brent, congrats on the improvements... i do have a few recomendations for you though: 1. it sounds like the gearbox is having a difficult time, i recommend getting a taller gear set installed (this will improve acceleration and speed, the low gear set only makes for high rpm and heat). 2. the rollers you use dont fully use the capability of the cvt, round ones work much better in the malossi cvt. 3. (and this is very optional) the engine case youre using is a low quality chinese unit, i recommend a japanese case(yamaha, aprilia etc.), you will experience about a 25 percent increase in power."
I asked where the power comes from with the Yam/Ape cases. I have actually thought about rollers. I don't like them. They don't last long enough for anyone that actually rides IMO. I have tried rollers vs sliders in the OR before and it made no difference. I did wonder if it could matter now that tuning is more critical than other setups though. This is not from YT because I have learned to question that stuff, but my own thoughts before any videos were posted.
Many carb comments. I am considering a different carb. Like a flat slide 28 or something. I dunno. Never really messed with those. Don't know if I want to bother with powerjets and that stuff. Then there's the guy that says to just put a 170 MJ in it now. The thing would drown itself.
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Post by aeroxbud on Mar 27, 2020 19:03:23 GMT -5
That's an interesting assumption. You would make 25% more power by changing to Yamaha cases. Using the same kit! Just when you think you have heard it all.
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Post by ryan_ott on Mar 27, 2020 22:57:43 GMT -5
So I’m guessing that guy doesn’t actually know the clone cases are thicker the the Yamaha stuff so you can trench deeper. Makes sense... The only Beni see is bearings vs bushings, but if your using the 3 bearing support then that is right out the door.
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Post by 90GTVert on Mar 28, 2020 18:48:37 GMT -5
I went to drop the 10:1 gears in and the intermediate shaft wouldn't go in. It was like the primary drive shaft and intermediate shaft were too close together. My first thought was, oh no... the cases are machined wrong and for some reason the S6/E-Ton setup squeezed in. Swapped some stuff around. Then I realized that my two 10.13:1 gear sets are not the same. The tooth counts are all the same, but they are different diameters. I have owned both CPI (my 2003-2004) and Baotian (2008.. also when the blasphemous act of putting 4Ts into Tritons occurred) versions of the Triton engines. I'm thinking that's why. At any rate, gears are in. I just need to clean the CVT and get that back together.
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