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Post by 90GTVert on Oct 11, 2009 6:35:59 GMT -5
As I mentioned in the Sunly Resto-Mod thread over in the builds section, I may be bringing my original Triton project back to life.
I would need to get the cases cut to accept the 45mm crankshaft. Then I need to figure out what sort of BBK it's gonna use. I'm kinda torn between going with a 54mm big bore kit for max displacement or a 47mm big bore kit for a couple of reasons. A 47mm kit would put it close to square. There are alos 47mm kits out there with decent ports for reasonable prices. The big big bore kits that I see offered seem to have pretty standard ports. Also, if I go with a 54mm kit it means more case cutting. I'd have to use a modded stock exhaust for a while. Not so sure I'd trust a little carb on this kind of setup, so I'd wanna get a bigger carb/intake. I've used some parts off of it to keep my other Triton going, so I'd need some odds and ends. It won't be cheap, but it might cost less than a new scoot and it would surely be better and faster than any scoot I'd get for $500-600 shipped.
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Post by 90GTVert on Oct 11, 2009 6:37:07 GMT -5
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Bob
Scoot Enthusiast
The Builder
Posts: 199
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Post by Bob on Oct 11, 2009 7:03:22 GMT -5
hmmm that would be tempting 85mm? damn that would be nice.....def something to think about
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Post by 90GTVert on Oct 11, 2009 8:06:25 GMT -5
Nothing to think about there, if I don't get a cylinder intended for a stroekr crank I'll need a spacer or spacers.
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Post by 190mech on Oct 11, 2009 19:16:25 GMT -5
Read else where that a stroker fouls up the port timing for stock
crank cylinders,but I see a bunch of folks on utube using those spacers..If you go that route,a test fit to get the final thickness
would be a good plan.I fab my own with aluminum plate,hole saw
and a bunch of filing,thats the only way you know what you are getting.The autotech355 cyl I bought has a bunch of room at TDC,
my stroke is 39mm and theres some makes with 41.4,but I'd think
a cyl with some extra bore would be good for a stroker install..
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Post by 90GTVert on Oct 11, 2009 20:23:13 GMT -5
After all the seizures I had getting a cylinder straight on the 99cc, I will definitely be doing some checking. Big cc sounds great at first, but look at my 99cc. 65MPH is pretty fast, but nothing stepthrutuner hasn't done with a 70cc on a budget. It's torquey, but it seems like 2strokd's 70cc is just as torquey. The 52/53/54mm kits that I have found are pretty much stock ports. The only big difference in the stock 52mm ports and the aftermarket 52/54mm ports was the exhaust port outlet. It was a D shape stock and the aftermarket kits simply opened that up. I did a small amount of work to my exhaust port and made a difference, but I don't have the tools or skills to completely rework a cylinder.
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Post by 90GTVert on Oct 15, 2009 9:48:28 GMT -5
I'm still thinking about this one. I don't know that trying to build an engine that revs high is a great idea for me. I ride a lot so that wouldn't be too healthy. Plus, a lot of cylinders that get beyond the sport kits are aluminum. Not so sure they'd hold up great with many miles and like honing much. I'm already pleased with the perfomance of my other scooter, and 3mm longer stroke, plus maybe a larger carb, a little more port work, and being in a scooter with fairings might actaully get me near that 70MPH mark or at least 60+ reliable cruising speeds. If it showed enough potential, perhaps a gearing change could really get it moving.
I'm still kinda torn though, because that mean even worse gas mileage than my 99cc, which gets 40MPG. I would be paying more in fuel cost than I would to ride a sportbike. If I backed it off to around 80cc, perhaps I could get 40-50MPG.
In all honesty, I actually want a 4 stroke. The gas mileage and lack of oil mixing makes operation a lot cheaper. I wouldn't want only a 4 stroke, but since I already own a 50 that's sorta quick it wouldn't bother me. I was also looking at getting a 150cc GY6. They still get 75MPG with big bore kits and are as fast or faster than my big 2T. Not to mention, I could drive that anywhere I wanted to go instead of being stuck on 50MPH and under roadways. I could let my father ride my 2T and I could ride the 150 when he wanted to come along. The bad thing there, is that he wouldn't have an economic scooter to drive back and forth to work like he wanted. He said it costs him $16-17 a week in gas to/from work now in his truck. It would cost about $11-12 a week for gas and oil in my 2T. Better, but not great. A 50cc 4T would probably end up around $3-4 a week.
I don;t wanna just let T1 sit around and be an unfinished project forever either...
I dunno what the hell I wanna do. I've gotten into scooter too much. At this point I wanna try out every scooter I can get my hands on. My budget just doesn't allow that. I've got a little while to think about the situation. My father is saying he probably won't ride again till March or so when it starts warming up again and he should be fully healed.
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Post by stepthrutuner on Oct 15, 2009 11:50:48 GMT -5
I know only you can make up your own mind but I would like to offer my 2 centavos worth.... I was thinking that since you haven't yet been down that avenue that a GY6 might be a worthwhile experience. I'm thinking just getting T1 to a good running state regardless the displacement as cheaply as possible and selling it as well as the retro. Buy yourself a good GY6 possibly already modded and bide your time on buying a faster 50 4 stroke for your dad as there is no hurry there. Diamo, Hyosung and CF Moto are three worthwhile looks which come quickly to mind unless you're a stickler with Vento and then it would be their F4i. I don't particularly care for the looks of the big wheelers. I know you've tied up a lot of money in the retro but I have a feeling that you will always resent it's slowness. If it were me I'd probably put the retro back to org. disp. and keep the BB parts for later projects or customer's upgrades.... food for thought.
BTW who makes that stock 170 GY6?
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Post by 2strokd on Oct 15, 2009 14:11:21 GMT -5
I say fix T1 and then decide if you want another scoot. Its paid for and like you said, its just sitting around as an unfinished project. Sell the Sunl and keep your eyes peeled for a cheap GY6150. You dont need to be in a hurry about it...
Imagine the sound of not one but two, count em two 100cc 2stroke Minarelli scooters!!! Wow! most people dream of that shit.
Ohh, uht uhhmm i forgot, gotta keep it efficient lol.
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Post by 90GTVert on Oct 15, 2009 14:55:15 GMT -5
I don't think selling T1 is gonna happen soon unless I get real strapped for cash. Even if it doesn't get done immediately, it's something I wanna do at some point. It's not gonna be anything special, but at least I get to build a stroker motor. Not sure who makes the 170cc GY6. I was looking at some of these... www.americanmopeds.com/scooters-mopeds-50cc-150cc-180cc-250cc/scooters-150cc-mopeds.html?order=price&dir=ascI'd like to have the one sitting in my garage. It's got 13" wheels and I know where it's been. It's owner never rides it. It just sits there. I've put over 1000 of the 2000ish miles on it. Other firends have borrowed it for probably 500 miles. It's 2 years old. I don't think he wants to sell it though for whatever reason. Would be nice to pick one up cheap that's already delivered and it wouldn't take up any extra space like adding another scoot. I don't have my M endorsement yet, so I'd need that. I got my permit and practiced for the skills test just never followed though and go the license since Bob and the guy that owns the 150 in my garage gave up on it. If I get a 150, I kinda wanna do it soon and get the licensing over with. I can't afford a scoot right now, but I mean as soon as I can. Not sure if it's a good idea to sell the Sunl that's not worth much anyway when everyone around here is draining out their gas and stuffing their scooters into corners.  |
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Post by stepthrutuner on Oct 15, 2009 15:49:32 GMT -5
That's quite a selection of 150s. Low prices and reasonable shipping costs too. Claimed top speeds were kind of all over the map. It was interesting that the 180's top speed was rated at only 51 mph and it's power was rated at only 5500 rpm. But after looking at a lot of Chinese scooter ads over the years it is not surprising.
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Post by 90GTVert on Oct 15, 2009 18:04:12 GMT -5
I don't pay much attention to speed ratings since I filmed a friend doing 63MPH on an X18 pocketbike and posted the video online. Next thing you know, every X18 being sold could do 60+MPH. They failed to mention that it was modified. That showed me how speed ratings really work.
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Post by 190mech on Oct 15, 2009 20:20:44 GMT -5
Wow,what a decision,,The 150's look good,but you'll have to
lisence it and buy insurance won't ya?I know some guys around
here that peel off the "1" and call them a 50cc hoping they dont
get pulled by a "smart cop"(??).I like a steel cylinder on 2strokes,
they clean up better and are borable.Do you have a stock crank
for #1?Or if only a stroker,then a 47-48mm kit with a spacer wouldnt be too much.You'd need a carb and a fatter stinger..
Sounds like a fun project also!
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Post by 90GTVert on Oct 15, 2009 20:41:31 GMT -5
Yeah, we used to ride the 150 with no tags. Now it's tagged and insured. I don't mind insurance and getting my license so I can ride it anywhere. I keep saying I wanna scoot in Ocean City, MD but I just haven't felt like hauling it down in the truck. I could just ride a 150 there. I could do more riding with friends on motorcycles as well. A 150 definitely offers some benefits, and those prices aren't bad. It's just hard to leave T1 sitting. It's a great scoot. I can get a 54mm cylinder kit like I have now for mid $100 range. Machine work was quoted at around $100 for just crank clearancing. Boring for the bigger jug would probably be a bit cheaper. I've got ceramic bearings and seals already. I could get a bigger intake and reeds and then maybe find a carb on ebay like 190mech to save a little. Not sure where to get a cheap 100cc pipe. The LVZX ended up around $325 shipped from overseas. No reason I couldn't use a standard free flowing exhaust for a bit though.
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Post by silverspar1 on Oct 16, 2009 2:47:05 GMT -5
(I don't think selling T1 is gonna happen soon unless I get real strapped for cash. Even if it doesn't get done immediately, it's something I wanna do at some point. It's not gonna be anything special, but at least I get to build a stroker motor. Not sure who makes the 170cc GY6. I was looking at some of these...) United Motors puts out a 170cc version of the Matrix II 150cc I used to have- www.cbxmanmotorcycles.com/United-Motors-Matrix-II-170cc-Gas-Motor-Scooter.aspxThey are Expensive New but I've seen them used for less than $800. I paid $600. for my 150cc with 500 actual miles on it. |
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