Performance Modifications to the GXH50

[Jlp.media]

I've tried EFI. Fuel is pressurized to 35psi, replace with a Taller piston head, keep the engine running at its most fuel efficient rpm and pair the motor to a cvt. an additional .6hp can be gained. If you hyper mile you can expect mpg's in excess of 1,600. Of course this isn't an option for most but if you are looking for efficiency that's your roadmap to get there.

 

[Erich_870]

I've tried EFI. Fuel is pressurized to 35psi, replace with a Taller piston head, keep the engine running at its most fuel efficient rpm and pair the motor to a cvt. an additional .6hp can be gained. If you hyper mile you can expect mpg's in excess of 1,600. Of course this isn't an option for most but if you are looking for efficiency that's your roadmap to get there.

Very cool! Do you have any pics?

Erich

 

[Jlp.media]

Unfortunately no, I sold it a couple years ago. But Louisiana techs Eco car has some on their website. And I'm sure you can find more pictures from their facebook page.

That's where I got the idea to try it for myself.

 

[KCvale]

Or you could just use the HS 144 53cc engine.
I haven't tried one yet but have a few coming ;-}

 

[Panhead]

If you really increased the airflow you will need to rejet your carb.

here is a great tutorial.
AGK - High-flow Air Filter Modificationon 49cc Engine - Affordable Go Karts

Thank you. Even after almost four years this worth a read, plus a whole 'nother source of neat parts over which to drool.

 

[dtv5403]

[

I've tried EFI. Fuel is pressurized to 35psi, replace with a Taller piston head, keep the engine running at its most fuel efficient rpm and pair the motor to a cvt. an additional .6hp can be gained. If you hyper mile you can expect mpg's in excess of 1,600. Of course this isn't an option for most but if you are looking for efficiency that's your roadmap to get there.

All that for half a horse?

 

[curtisfox]

All that for half a horse? I agree,seems like a lot of exspence for that.............Curt

 

[Jlp.media]

Yup. All of that for half a horse. But what I gained in experience was worth it.

 

[Murdered Cruiser]

Yes.
Don't forget the Huasheng 49.4 cc Honda clone.

One more option is a free flowing air filter with
the standard carb.

SickBikeParts.com has an air filter upgrade.

AffordableGoKarts.com has a larger carb and air filter upgrade.
Also a reground cam.
A couple of exhaust systems.

The only company claiming upgraded porting on the Huasheng
motor or Honda is Dax with his Super Titan / Huasheng.

Dax claims 1/2 hp more with the Super Titan than the regular Titan
which he claims is accomplished by better porting and higher compression.

Personally I doubt these claims and Dax has never proven that his
$40 more expensive Super Titan has any porting or compression changes
over the regular Titan.
All experts including AGK I have talked to say there is really no way
to change the porting to improve over what Honda has designed.

Hey there

 

[Sidewinder Jerry]

Hey there

I suggest if you want to know about performance modifications with that engine to start your own thread.

Nobody has responded to this thread for almost 9 years. If you're trying to get in contact with Motor Bicycling Racing you could try to PM him. However MBR hasn't been on the forum for around 5 years.

 

[Murdered Cruiser]

Hello there I have a motorcycle that I built from scratch and I used Honda GXH 50 and I wanted to know what I can do for more speed and more power

 

[curtisfox]

Hey there

Check the date in the upper left corner, I dought you will get a answer ..Curt

 

[Tom from Rubicon]

M C, do as Jerry advised. ...Tom