1 speed liquid cooled 70cc kymco going 70+

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1 speed liquid cooled 70cc kymco going 70+

Postby Micronaut » Tue Aug 09, 2005 6:50 am

yeah, clocked approx. with the car... 55 on level.. and a slight downgrade and my wife said "I was going 70 and you were coming up fast"

1 mph per 70cc!
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby Micronaut » Tue Aug 09, 2005 6:52 am

HEY!

I meant 1 mph per 1 cc of engine. Am I missing something? I didn't see the 20 min edit, tried to fix my typo...

maybe it's just too early AM.

WB
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby BigJoe52182 » Thu Jan 12, 2006 9:16 pm

I have a Kymco ZX50 its not liquid cooled but do you know were i can get a 70cc kit for it i need one

thanks joe


josephgilpin@bellsouth.net
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby benny » Fri Jan 13, 2006 8:19 am

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re: 1 speed liquid cooled 70cc kymco going 70+

Postby 50/50 » Fri Jan 13, 2006 10:20 pm

Micronaut-what RPM @70? Can u get more than 55mph on level ground? Inquiring minds want to know, lol.
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby Cyberian » Sat Jan 14, 2006 3:56 pm

Wayne -
Is that a 50cc scooter with a bore kit, or does Kymco make a 70cc now?
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby Micronaut » Tue Jan 17, 2006 6:49 pm

The bike, a 2002 LQ kymco is quick OR fast, not both. While I know what these 'mods' did, I paid someone to do it. I'm not good enough to put a kit on a new bike yet.

Summer 2002
Bought it, rode it stock for about 500 miles. Swapped out the engine for a 70cc kit. Part cast, part aluminum and a kevlar belt w/technigas exhaust and a bigger carb.

At this point it had also rec'd a new clutch, tighter clutch springs, heavier variator weights and a stiffer rear main spring.

It would hold medium 60's all day long. RPM about 10k. You would have to listen to the bike on downhills to make sure it didn't roll up to 12 or 13k for long.

that kit burned up, transmission melted. I had the bike re-built and re-geared for power. I could slide the rear end, wheelie anything. was scary, kind of. That set up would be over-revving mid-40's. I know it sounds stupid (it was!) but I had 4 or 5g rollers. so the bike raced up to 8k, bit the clutch, dug in and shot up to 40. so quick.

then the tranny cooked and I used heavy rollers again. Lost all my bottom but could approach 70+ clocked by a car in front of me. so far it's had three engines, (airsal) a few technigas exhausts, a ton of roller weights, a few kevlar belts, and one time the transmission melted down so hard (shouldn't be going 13k in the first place, idiot) the needle bearings, everthing went.

So I rebuilt again with a torque converter. The current setup was the heavy roller, no takeoff, power band low (7-9k) but amazing speed on top. that ripped up another kevlar belt so I'm going to add the latest technomoto variator and maybe the delta clutch.

Mopedhospital is an amazing aftermarket scooter site.

best powerband usually around 9k, depending on rollers, clutch, etc.

can't wait to ride. it's a "moped" but I'll be speechless when I get pulled over doing 60mph. what do you say? Tell 'em you messed with your idle?

anyway, this it the bike I expect to push about 10bhp on the dyno next summer.
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yahoo super 9 group

Postby Micronaut » Tue Jan 17, 2006 7:02 pm

there is a super site on Yahoo groups about the super 9. These guys have digital stuff-- their results are about the sam as mine but they have the raw stats.

"level ground...55+?" I don't know. In a tuck you pick up 5 mph... no problem. But powering it past 55? you'd need to have all the "bolt-on" hp that I have as well as the knowledge to tune it for best results.

they have charts, rpm bands, stuff for certain kits. very specific super-9 stuff.

I know there's a common reply there "well....it sounds like you should be doing mid-50's. lets re-do the check list"

so mid-50's is easy. A master mechanic could probably do a lot more.

oh yeah. peak RPM at 70+ (with 9g rollers and zero acceleration under 40) was about 11k. Purring like a kitten too.

I get nervous over 12k... (and also, I have a stock tach, redlines too early and goes off the charts around 10k) but you get a feel for the bike.. if you know what 10k is like... you can tell what "about to explode" sounds like.

with the liquid cooling I'd run that bike at 11k for hours without worrying as long as my tranny was tuned right. thats the main problem spot-- the bike is throwing too much power and shredding kevlar drive belts.
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby aaronw172 » Wed Jan 18, 2006 7:12 pm

i hope u kno ur spose 2 wear the bore kits in for bout 500 miles before thrashing them
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby 50/50 » Sat Jan 21, 2006 6:02 pm

Thanks for the commentary Micronaut.

I'm a member of the Yahoo Super 9 group just haven't been there for awhile.

I've been pondering power mods and have pretty much decided to buy a pipe/jets and play with the trans tuning.

I wear a full face dirt bike helmet with a large visor and that is not conducive to top speed on a 50cc scoot but it does keep the sun out of my eyes.
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby chris » Sat Jan 21, 2006 7:01 pm

hi 50/50 what pipe are you getting also what carb have you got ?
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby 50/50 » Sat Jan 21, 2006 7:55 pm

Hi Chris, my first choice is the Tecnigas Next R with lacquer finish 'cause "chrome don't get ya home".

Then up jet the stock carb w/less restrictive air filter.

I want to maintain realibility with a boost in speed and noise.

Loud pipes save lives!
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby Micronaut » Sun Jan 22, 2006 11:02 pm

arecche porcupine? looks kinda nice in the close up pics...
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re: 1 speed liquid cooled 70cc kymco going 70+

Postby maddog » Wed Feb 01, 2006 2:01 am

I would go with a PG long pipe as it produces the most power tested.
Some people dream about speed! blink and im gone!
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