KymcoForum.com
Scooters - 50cc => Super 8 => Topic started by: Super8:50:2T:2013 on May 14, 2014, 12:04:47 AM
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Hello,
I am looking for some bolt on performance exhaust suggestions for my 2013 Super 8 2T 50cc scooter. Currently just smooth boss and 82 main jet.
Thank you in advance.
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There are like a hundred options. How much do you want to spend, and how good are you w/ tools.
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Hello, Well, I think a couple of hundred should do it.
As far as using tools, No hinderances there(other than old age :(
Looking to bolt on some extra punch...
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An exhaust by itself won't give you very much bang for the buck. If you go with a 19mm carb, and a pipe you can add 2ish HP, and 5-7 mph.
To really feel that power gain CVT work is almost mandatory. Rollers balanced to the new set up, and a tune-able clutch + a control spring make a world of difference.
I look at tuning like a two phase deal. the logical next step would be a bore kit. It can add about the same amount of power, and MPH, and that would be the time to polish up the cvt. A good bore kit and clutch should go for approx 200.00 as well
Check out SPI http://www.spi-parts.com (http://www.spi-parts.com) We have a arrangement w/ the owner to provide dealer pricing on performance parts for Kymco Forum members. I'm sure he can set you up with a proper pipe/carb/roller set within your budget.
Louie Peverini
Scooter Parts International
800-591-2670
Check out the site but he never has EVERYTHING listed so phoning him is a better choice. The guy is a world class bike mechanic,(team Yamaha pro) and will help you out.
Post up, and let us know how you make out. I can help with any install questions.
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a grappling hook and rope is cheap...
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Hey Vivo,
Now, That's an Idea.
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Hello,
I am looking for some bolt on performance exhaust suggestions for my 2013 Super 8 2T 50cc scooter. Currently just smooth boss and 82 main jet.
Thank you in advance.
What is your performance now with smooth boss and #82 jet ?
I'm exactly the same set up as you right now and I get 35 MPH on the flats.
I was thinking of finding a stock exhaust someplace and derestricting by removing the blind pipe and maybe upjetting. Im insured right now and dont want to mod it too much were it may void the insurance if an accident happens. Id like to keep the original exhaust un-altered so I can slip it back on should I need warrantee work. My goal it 40 MPH on the flats.
My state limits us to 2 HP. I can always get a Motorcycle endorsement in the future also.
Is ther anyplace to get a stock exhaust for this bike ?
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Hello Chris,
Im in SE NC, Where are you located?
I may sell my stock exhaust after I have success with another one, maybe a Leo Vince?
I may also upjet to an 88 main.
I get about the same performance as you right now.
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Don't sell your stock pipe... you might need it later...
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What is your performance now with smooth boss and #82 jet ?
I'm exactly the same set up as you right now and I get 35 MPH on the flats.
I was thinking of finding a stock exhaust someplace and derestricting by removing the blind pipe and maybe upjetting. Im insured right now and dont want to mod it too much were it may void the insurance if an accident happens. Id like to keep the original exhaust un-altered so I can slip it back on should I need warrantee work. My goal it 40 MPH on the flats.
My state limits us to 2 HP. I can always get a Motorcycle endorsement in the future also.
Is ther anyplace to get a stock exhaust for this bike ?
Slinger went thru all of that, and it never worked.
You can get OEM Look Alike pipes that do give a bit more pep. Same place as in my prior post
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Hello Chris,
Im in SE NC, Where are you located?
I may sell my stock exhaust after I have success with another one, maybe a Leo Vince?
I may also upjet to an 88 main.
The jet will flood without a pipe. Wait till you order a pipe, and get 5-6 jets to dial it in. Also get ONE size bigger on the idle jet.
I get about the same performance as you right now.
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Im in NC as well.
Modded stock pipe actually does pretty well contrary to what people say. I run stock carb (105jet), stock exhaust modded, stock var, NCY clutch, malossi 70cc sport cylinder. Gobs of torque (pulls strong even with 2 peeps), great accel, tops out about 46 but thats all i want to stay outa trouble. Tame sound and good mileage.
I have a TK pipe here but the 16mm carb cant keep up with it on 70cc cylinder and its tooo loud.
Might put a 21mm Delorto i have kicken around on for fun.
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Thanks Jethro, I think I want to stay at 50cc but little bolt on's here and there to help me out...
So Far, Im at smooth boss, 82 jet, iridium plug and Amsoil Full Synthetic. Hitting about 35mph on flat streches with me at 230lbs.
Take care
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recommendations, Tecnigas Triops
http://www.pohrani.com/?37/pJ/2bfHdHms/dsc002111.jpg (http://www.pohrani.com/?37/pJ/2bfHdHms/dsc002111.jpg)
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Nice Expansion Chamber!
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Can you just bolt a new exhaust on without changing anything else like the jets or airfilter etc ?
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easier rolls and 5-6 numbers larger nozzle to start ....
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Hello Chris,
Well, If I upgrade my exhaust, I will probably go with an 88 main jet.
I have removed the small tube in my stock air cleaner already.
What's your setup? Results?
Take it easy
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I' seriously consider modifying the OEM air-box to flow as well as a "free flow" type filter.
2t's, and rain don't mix!
Seriously nice pipe too. The header seems to have a purpose that's missing in ALOT of pipes. It looks like it would have an extremely fast flow rate to evacuate the cylinder quickly plus faster flow back in off the pulse. Like a mini free energy turbo...
I wish I had one to play w/.
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Hello Chris,
Well, If I upgrade my exhaust, I will probably go with an 88 main jet.
I have removed the small tube in my stock air cleaner already.
What's your setup? Results?
Take it easy
Right now
Just Smooth Boss and 82 jet and doing 37 now on the flats. I just want to do mods in simple stages. Too many threads start then leave you hanging on the cliff when no results or details are followed up on. What works and what doesn't work ? I'm not looking to pouring lots of money into experimetal mods. I'd rather spend the money to make the ride safer.
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Bla Bla Bla... Tell us again in 7 months...
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Just kiddin' but realy..
It will be 49cc forever, and maybe get 45MPH. 55 once in awhile.
You can lock in the CVT, and 1/2 the time to top MPH, and be able to maintain MPH much better up hill OR work from the outside in, and get a kit/pipe / carb., and make it 55 all day, and 60-65 once in awhile.
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Hello Chris, Yeah, I'm with you. I would like to accelerate stronger and be able to maintain about 40 easily staying at 50cc.
I think any more than that gets us lots of trouble and tickets.
I went ahead and reordered a Naraku Variator and half pulley plus a Naraku exhaust pipe called "Traffic". Also will add a 10mm longer belt with Dr. Pulley Sliders(9)grams. This should give me the small boost I am looking for. I may upgrade to the 88 jet if needed.
Take it easy.
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Hate to rain on the parade Super8... The 9gr may be too heavy even with a 2000 contra spring, and a longer belt will slow the bike down UNLESS your original belt was known to be too short or the pulley set you got is larger.
I have found that 5 gram is the heaviest you can run in a 2t. Even taking the Dr Pulley acting lighter into account that would be 6gr Dr. P. I think you will find the bike maxing out top gear way too soon, and never building RPM's. How did you come up with 9gram?
Please post up how it goes to avoid a "dead end thread"
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Hello again Z,
Well, I may be way off but I thought the stock kymco roller weights are 8.5gr, so if I put in a 9 gr Dr. Pulley, they should act like 8grs, Is that correct??
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P.S. Remember 2T
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You are correct in the numbers. I assumed the OEM weight was 6gram.
If your 8gram oem is correct then 9 will keep your rpm the same.
The Traffic exhaust I believe is a 7k rpm pipe so you should be ok.
The whole object or method of making power in a 2 stroke is to maximize rpm. The more rpm you have the more torque you have. I run 3.5 Polini rollers @ 14k rpm at butt dyno of about 13hp. and perhaps 9-10 ft lbs of torque.
Your set up will be approx 3-4 HP @ 7-8k rpm, and 3-4 ft lbs of torque.
Approx 12-14 seconds 0-50mph times. You can lower the ET's with a Stage6 clutch to approx. 8-10 seconds, and have a pretty solid scoot that will last on the street.
You might be able to improve those numbers (+1-2hp) w/ a lighter set of rollers, and opening up your air box system/up jetting.
Keep us updated...
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Thanks Z, Wow, a 14k redline, I know that costs a pretty penny :)
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It's the bike listed in the 4 sale section here. I had alot of fun with it over the years but I am tired of throwing time/money at it. No one down here races scooters o it needs a home where it can be used.
When I do sell it the $$$ is going into a prototype ehtanol distillation column that I have engineered, and want to prove out.