GY6 BIG BORE KIT 172cc / 171cc / 170cc (61mm)

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GY6 BIG BORE KIT 172cc / 171cc / 170cc (61mm)

Рет қаралды 13,846

Күн бұрын

FULL KIT:
www.rollingwre...
171 KIT ALONE:
www.rollingwre...
It can get super confusing when choosing a big bore kit for your GY6 engine. Not all 61mm kits are drop in. Some call a 61mm big bore kit a 171 while other cheat and call it a 172c and some even under estimate the kit calling it a 170cc. Bottom line our kit is a drop in gy6 big bore kit. Not all on the market are! We have 15 years of experience building these GY6 engines. Don’t fall for a cheaper kit that Joe Shmoe is selling just to make a buck. This is our passion and you have our support. All of our big bore kits have the piston ring end gaps measured and installed on the piston. With the 61mm piston installed into the drop in cylinder. It doesn’t get any easier to install. Follow our step by step install video.

Пікірлер: 64

@minibikeaction4266 Жыл бұрын

nice stuff you got there, I was wondering what happens to the valve timing after changing the base gasket to change compression.

@RollingWrench Жыл бұрын

It’s such a minor change that you won’t have to worry about that

@ewaldstander766 Жыл бұрын

Thank you so much for the help, what does OFF-SET / Non OFF-SET mean. I'm very new to this

@xtremluck6260 Жыл бұрын

Congratulations on your product line. It would have been nice to see some data on the performance of these big bores. Not sure if your claim to having the piston assembled inside the cylinder is a benefit when it looks like it needs to be removed in order to install the piston pin to the crankshaft. If that is the case, why not scalp a radius relieve into the piston sleeve, allowing the pin to slide straight into the piston and crankshaft? Cheers.

@RollingWrench Жыл бұрын

I’ll have dyno data soon. As for as the piston pin. It can be installed without removing the piston from the cylinder. Simply slid the piston down far enough to slid the piston pin in and out. I appreciate the support

@roywalls5595 Жыл бұрын

Thank you for info and video! Mr. Matt

@RollingWrench Жыл бұрын

My pleasure!

@LuisitoRodriguez. 25 күн бұрын

How do you calculate CC? how can you know how much cc you just added to your bike I have a 150cc and added so many thing big bore kit and everything but i don't know what to tell people when they ask how many cc does my bike has

@robertosolis3024 5 ай бұрын

I have a golf cart with this engine in it. Wonder if it will work on my cart

@RollingWrench 5 ай бұрын

As long as it’s a qmj157 engine

@robertosolis3024 5 ай бұрын

@@RollingWrench how can i tell if it is a qmj157?

@RollingWrench 5 ай бұрын

@@robertosolis3024 kzfaq.info/get/bejne/sMqiqq2TnbOweH0.htmlsi=O6oOwkKsbRQiV7BS

@reigndown Жыл бұрын

Hello! I love these big bore kits. Do you know of a decent drop in big bore kit for the Honda Helix / CN250? I've got a Helix clone and I think it'd be neat to bore it out to around 300cc for riding two-up easier. Thanks!

@thomaslorenz999 7 ай бұрын

Hi, I would like to order such a big bore kit to make my Kymco scooter faster. But it has an EFI system and I wonder if this will work, or do I have to enlarge the injector or adjust the mapping?

@jerbysantiago4911 Жыл бұрын

Hey bro,just asking what is the size of stud spacing in bore of 152QMI-2?thanks...

@Booboosik Жыл бұрын

I am about to buy it. Still confused if I want cast or forged. If I'll go with cast, how much of performance will be lost vs forged? If I'll go with forged, how much life expectancy will I lose vs cast? Also, on one item on your website it says to go with forged for long life, this is directly opposite what you claim in another video. Thus, I am 100% confused what I want.

@RollingWrench Жыл бұрын

It depends how you ride it. Forged will last longer if you abuse it / ride hard and aggressively. Cast will not last as long, it’s not as strong. On the other hand , cast will last longer if you are just a cruiser. Forged is for weekend rips! Cast is for everyday riding. I personally choose forged.

@Booboosik Жыл бұрын

@@RollingWrench I am that boring rider who cruises.

@beezowdoodoozoppitybopbopb9488 11 ай бұрын

@@RollingWrench is the slug a 4032 or 2618 alloy? If it doesnt last as long as a cruiser it sounds like a 2618. A 4032 alloy would allow a closer piston to wall clearance like cast while being much stronger

@ferdiciburhan6807 5 ай бұрын

gy6 150cc valve tightening problem??

@richardlopez487 Жыл бұрын

1p57qmj buggy howitt engine im trying to order a 171 big bore forged kit with the carb and a gearing for more top speed witch one do you recommend

@mr.frogy7643 Жыл бұрын

I have a kymco 150 scooter what is the best big bore kit for it

@dougparsley910 Жыл бұрын

Is it necessary to run a velocity stack insulator under carburetor intake I always wanted to know the purpose of the insulator

@RollingWrench Жыл бұрын

No, it’s more of a temperature insulator so your intake manifold doesn’t get hot and eventually your carburetor heats up too

@dougparsley910 Жыл бұрын

@@RollingWrench ten four Thanks

@BrainBoostIQ 4 ай бұрын

Would this work on a 50cc roughhouse ?

@Pasteria8 Жыл бұрын

Can i knstall this om a Peugeot kisbee 2013 50cc? 😅😅

@lesheath6216 Жыл бұрын

The ONLY time that a flat top Piston lowers compression is when you go from a domed high compression piston, which none of these engines come with

@RollingWrench Жыл бұрын

This is what I am referring to. Most 171cc big bore kits are domed pistons. Ours is flat top. Flat top has lower compression than domed. I’m glad I cleared that up

@lesheath6216 Жыл бұрын

@@RollingWrench why would you want lower compression pistons? That kind of defeats the purpose of the bigbore kit. More compression=more power

@RollingWrench Жыл бұрын

@@lesheath6216 GOOD QUESTION:-) Let me give you the 101: Domed piston: Raise the acceleration via the higher compression, but lower RPM capability = lower top speed Flat top piston: lower compression ( then a domed piston, but higher compression then stock) but they rev higher with its higher rpm capabilities = higher top speed. Our ProBld performance cam shaft that is made for low to mid range power, gives you that lost low end torque back that a you would have gained from a domed piston. In short, by doing a flat top piston with a thin base gasket (to raise compression) and our ProBld camshaft is the best combo possible. We have done a lot of testing on this. Also, because domed pistons raise the compression, they tend to kill those stock crank shaft bearings. The only time we recommend a domed piston is when you are in a place with high altitude such as Colorado. We loose compressed up here. A domed piston will match what sea level elevations compression is, keeping it just as reliable as if you had a flat top piston at sea level. We are looking for the most performance with reliability in mind. If you want to learn more about big bore kits here is a link: GY6 BIG BORE KITS - EVERYTHING YOU NEED TO KNOW kzfaq.info/get/bejne/gbN2iMWq1rjFhmw.html

@lesheath6216 Жыл бұрын

@@RollingWrench thanks for your explanation, however I'm at higher altitudes as well here in the North GA mountains, so what do you suggest for those of us breathing thin air?

@RollingWrench Жыл бұрын

@@lesheath6216 same kit but with a domed piston. We offer those as well. Same price, I just haven’t put them on the website. If you want a kit with a domed piston click this and I can invoice you: www.rollingwrenchdenver.com/products/parts-estimate?ToPasteboard

@anthonyrossi3869 Жыл бұрын

I’m looking into picking up a new scooter I currently have the zuma/ ice bear vision 50 big body scooter do you think I should get the vitacci clash 200EFI 168cc scooter or should I go with my bike as a 150cc which is not EFI which one should I go with! My only doubt’s are how dose it compare in seating position and feels when riding the clash on the road as there’s no dealers in my area to see it in person and the handle bars are non adjustable hopefully they are set in a comfortable position my current bike has the dash separated from the handle bars which you can adjust the tilt on the handle bars with the 2 clamps holding it I’m. definitely overthinking it but I would like your say on it lol😅

@RollingWrench Жыл бұрын

Choose the bike with parts support. Otherwise you may find your self in a pickle

@quan_the_don Жыл бұрын

Will this work on any 150 gy6. Scooter?

@Boyhoffman Жыл бұрын

Could you tell me which/if one of these GG6 engines will fit a Can Am DS 90X. Currently has a 90CC engine, but we're looking for more power.

@RollingWrench Жыл бұрын

I’m not sure on that model

@MurzichStar Ай бұрын

Как купить комплект?

@casey360360 Жыл бұрын

I want to install a 171 on my Genuine Buddy because of the better oiling system but also don’t want to machine my case lol.

@RollingWrench Жыл бұрын

We have a 161 drop in. No case machining

@RollingWrench Жыл бұрын

www.rollingwrenchdenver.com/products/stage-2-buddy-scooter-performance-kit?ToPasteboard

@casey360360 Жыл бұрын

@@RollingWrench I did not know that. I’ll definitely be ordering it.

@Gunz73 Жыл бұрын

I got your drop in 171 ncy kit. When installing it the T mark or line beside wont stay lined up unless I hold it in place.Any help would be appreciated.

@RollingWrench Жыл бұрын

Ya just hold it in place

@gangstafred60 4 ай бұрын

What can i get for a 161 qml

@kennethbsebastian7265 Жыл бұрын

Where can we exactly order that bro ? Specially if a am in the phillipines

@RollingWrench Жыл бұрын

Unfortunately we do t currently ship to the Philippines :-(

@nhokzconvert6646 6 ай бұрын

😂 too slow my stock gy6150 more good than that

@saulrivera1133 Жыл бұрын

Wish one are better Taida or PROBLD

@RollingWrench Жыл бұрын

Probld is Taida, but with some specs that are changed to make our kit better in my opinion

@cuntsixty9381 Жыл бұрын

Will this work on wolf rx 50cc, please respond

@RollingWrench Жыл бұрын

No, this will though www.rollingwrenchdenver.com/products/chinese-scooter-80cc-big-bore-kit?ToPasteboard

@rickricardu Жыл бұрын

Hi! I am living in Japan and I want to start buying a Ruckus and modding it without breaking my bank account. Is there any comprehensive starter guide in this insane world? Thank you all!

@RollingWrench Жыл бұрын

So you want 50cc stock motor or a gy6?

@rickricardu Жыл бұрын

@@RollingWrench keep the stock. But upgrade it.

@anonymously241 Жыл бұрын

What is the top speed? 🛵

@RollingWrench Жыл бұрын

Top speed doesn’t change much. Just like a bicycle, it doesn’t matter how strong your legs are, you can only pedal so fast. For top speed we want to change gearing. Big bore is for acceleration and not loosing speed on up hill inclines.. the muscle

@jerrybigrig9475 Жыл бұрын

👍😎👍

@dons.hacchh 11 ай бұрын

Top speed?

@RollingWrench 11 ай бұрын

Top speed won’t change much. Because we are only improving the muscle not the gearing. It’s like lance arm strong on a BMX bike. You can only pedal your legs so fast. But you will get to that top speed much faster

@engchoontan8483 2 ай бұрын

manufacturer play government regulations until it hits them back = hit self = ... assemblers are like 500x-seat user self-support OEM enterprise computing information logo help-desk customer-service = own IT department accessories level for localisation of simple things like gy6 = kits and accessories at assembler (local legal type approved) carburettor(climate), intake(usage), exhaust(legal noise), muffler(illegal noise legal money titanium spend), end-can(legal womenly looks), ... chassis-number, engine-number registration plates 2 numbers issue 1 number take money and ungrateful create even more problems until self implode and tell everyone who stu