48cc steel sleaved engines?

[mapbike]

anyone know anything about the 48cc steel sleaved engines?

Theres a guy selling them on Ebay and claims they are the very best of all of these little engines, he claims that they will out rpm and out pull any of the actual 66cc ("80cc") engines and out last them as well, I havent seen any post as of yet about these engines and am wondering what the plain truth about them is, if they are as tough as this guy claims I may get one for a bike I plan to put a jackshaft on and ride to work 3-4 times a week at a round trip distance of about 32 miles.

Any info. Please...?

[BarelyAWake]

Without a link - there's no way for us to check them out but...

ANY ebay "guy" making claims about any product "outperforming" is to be viewed with... skepticism at best lol I seriously doubt he's casting them himself = the same as everyone else's

Ya could take his hype at face value, or buy from an actual business, a reputable vendor with excellent customer service - your choice.

[Steve M]

There is one on ebay that is a 49cc with steel sleeves from boygofast. It is for 133.00 buy it now.
Steve.

[john_the_great]

Do you mean this one? It is possible that this motor is slightly better given it looks like it has a pocket bike carb and a slant head.... but untill someone owns one i am skeptical about 2.5hp and 40mph...

49CC BICYCLE MOTOR ENGINE KIT gas motorized moped steel - eBay (item 150415818062 end time Mar-20-10 17:40:57 PDT)

[mapbike]

Hope this works... here's the link to the engine I spoke of above,

http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT

[mapbike]

I figure this is the same engine as the one BGF is selling but was wondering if anyone has ran one of these and if so is it worth messing with or is it just a steel sleaved power down grade from the 66CC engine.

I have 2 of the 66cc engines that I bought from BGF and they seem to be just fine so far, only issues so far is the carburetors flooding due to needle & seat not sealing properly.

[john_the_great]

It is a starfire and it looks like it is much better quality then the RAW motor I have, and I have put a lot of miles on mine. I like the way the carburetor is on this one, no spigot problems because the carb bolts on. You should get it and then tell us how well it performs!

[mapbike]

Yes it does look good in the pic. I noticed that the guy did say that the engine you get when you order is not the chrome unit but, that would not be a big deal to me anyway, the chrome looks good but has nothing to do with how it runs, unless a person is like a few ole boys I knew back in my hot rod days that would put a set of chrome valve covers on an old 350 chevy and swear it added HP and was faster....LOL I would just laugh and smoke them in my old 71 chevy C10 and the 475HP 406CID small block under the hood. I'm already wanting to mill a head and polish the ports on one of these little engines.....

Back to the steel sleave engine.... I'm thinking that a fellow may take a few 1000's maybe .020 off the head of this little 48-49cc engine and with a little porting and a good exaust and fuel mix might get it to at least pull as hard as the 66cc, this might make a longer life engine being that it has a steel sleaved cylinder and claims to even have a bigger and better main bearing as well. sounds like a future project to me.....!

[bairdco]

i think all these motors have a steel sleeve. i don't know of any that use Nikasil, and i'm almost certain no one's gone ceramic. so what else is there?

[HT2005]

I looked at the name of the seller and stopped there. "revolution-recycles" is actually revolution cycles. Don't buy from him.