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Honda Grom 125 BSFC


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#1 malbear

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Posted 25 January 2018 - 20:44

s-l300.jpg

Does anyone have the BSFC map for one of these 

thanks  



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#2 gruntguru

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Posted 26 January 2018 - 06:29

Postie bike?



#3 malbear

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Posted 26 January 2018 - 07:08

close same engine family but 125cc instead of 110

Grom bore 52.4mm stroke 57.9mm

ct110 bore 52mm    stroke 49.5mm



#4 malbear

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Posted 26 January 2018 - 08:21

2014-Honda-Grom-Dyno-Chart.jpg?itok=uvfz

 

no fuel consumption figures 


Edited by malbear, 26 January 2018 - 08:23.


#5 malbear

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Posted 26 January 2018 - 20:37

closest thing I can find 

http://www.naun.org/...ergy/19-356.pdf



#6 Charlieman

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Posted 27 January 2018 - 15:22

If you can measure the BSFC at about 5150 rpm, you might back calculate from the torque and power curves.



#7 Kelpiecross

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Posted 28 January 2018 - 02:22

What's this for - a new engine invention or project? If you can make something useful there are tens of millions (maybe a billion) of similar layout engines running in Asia - one of the common generic types is the GY6 - which apparently is loosely based on an SOHC Honda. So - plenty of opportunity for sales.

Edited by Kelpiecross, 28 January 2018 - 02:23.


#8 Greg Locock

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Posted 28 January 2018 - 03:49

Yeah, but in a low cost environment. Incidentally I think even the third world countries are moving towards banning 2 strokes.



#9 malbear

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Posted 28 January 2018 - 04:46

I am working on a cylinder head design to be marketed to Grom owners  . a proportion of owners are happy to double the original purchase price for a fashion leading bike

http://finbrogarage....ne-package.html

 

finbro-204-4v-complete-engine-package.jp

 

Overview of the Global Market
Global market exceeds 25 million units with major
markets for all capacities, as follows:
China 40%
India 20%
ASEAN 16%
EU 10%
USA 5%
Utility models less than 150cc account for more than
90% production


#10 Kelpiecross

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Posted 30 January 2018 - 03:25

Yeah, but in a low cost environment. Incidentally I think even the third world countries are moving towards banning 2 strokes.


With the ubiquitous GY6 all manner of aftermarket hotting-up gear is available - big bore kits, cams, exhausts, carbs etc. right up to 4 valve heads and (I have heard) superchargers. With such a huge market even a tiny percentage of people buying something adds up to a lot of sales. The GY6 has a cult following in the U.S. even having drag race meetings etc.

#11 malbear

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Posted 30 January 2018 - 10:00

With the ubiquitous GY6 all manner of aftermarket hotting-up gear is available - big bore kits, cams, exhausts, carbs etc. right up to 4 valve heads and (I have heard) superchargers. With such a huge market even a tiny percentage of people buying something adds up to a lot of sales. The GY6 has a cult following in the U.S. even having drag race meetings etc.

Kelpie ,

among my collection of engines there is a 150cc scooter motor from Taiwan . I shall have a look and see if its a GY6 version 

 

also as an indication of the hot up culture in stralya

http://www.ozscooter...php?cPath=49_54


Edited by malbear, 30 January 2018 - 11:04.