viva with a 300cc 6 speed

recracer · 01-12-2011, 02:03 AM

Hi guys been a while . thinking of a project for the viva . 300cc 30 horsepower , http://www.alibaba.com/product-gs/35...NG_ENGINE.html all input welcome . will cost 800.00 to get here from china . more can be gotten if it works out . :idea:

Weldangrind · 01-12-2011, 10:46 AM

Hey Ron! Thanks for checking in. How's our new bike?

I don't think I'd buy an engine that says "magical" on it.

I'm not sold on liquid cooled China motors yet.

Will they actually ship one engine to you, or do you have to buy a container?

bones33 · 01-12-2011, 10:48 AM

A 4 valve motor should be more thermally efficient than a 2 valve motor, and produce more power as well. Could be fun.

Just a couple of questions.

The alibaba site shows what looks like two different motors, maybe one is pushrod? Do you know which one they will ship to you?

How hard will it be to modify the engine mounts to fit the different motor? Where will you mount the radiator, route the hoses? You'll need to fabricate the intake and exhaust systems. Will your ignition system work with this motor?

recracer · 01-12-2011, 11:22 AM

hey Weldangrind
if you like that type bike buy the ninja 250 i will start a post over in street ,i've away from here a while and find i can't host photos from myspace any more so i'll have to do something else there .. yes i can buy 1 engine from them and the cost would go down for more than 1 . engine comes with intake carburater ,radiator (s) my choice and they'll add the front pipe for extra . the engines just look different left and right side , but the do have others as well , do wish i had a frame to mock it up tho . think a gy-5 has more room .

Weldangrind · 01-12-2011, 11:29 AM

I'm looking forward to your Megelli thread.

I use Photobucket, and it has worked well for me.

That 300 would be fun in your Viva, no doubt.

recracer · 01-12-2011, 12:37 PM

bones33

Quote:

How hard will it be to modify the engine mounts to fit the different motor? Where will you mount the radiator, route the hoses? You'll need to fabricate the intake and exhaust systems. Will your ignition system work with this motor?

i have a technical drawing of the engine and the only 200cc drawing i could find was a water cooled fml163 engine . so as far as i can tell the rear mounting points are the same or not far from being the same , width wise i can't tell . front mounting points appear a little off , much easier to mod that side . they will supply dual radiators at my request and should fit where the false fins are now . Ignition is cdi and would run with the current setup , but they build bike with these engines and could also supply a cdi with the timing curve preferred by there engineers . bigger worry would be head room in the gy-2 frame . gy-5 came with an overhead cam engine ,there may be more head room in that frame .

Cal25 · 01-12-2011, 01:42 PM

My Hibird 250 is a GY2 and it is overhead cam if that helps.

bigheavy150 · 01-12-2011, 02:11 PM

Quote:

Originally Posted by Weldangrind

I don't think I'd buy an engine that says "magical" on it.

I agree

But you never know with china. It may be a good copy on the inside.

How is a 4 valve engine more efficient then a 2? educate me plz

Cal25 · 01-12-2011, 02:24 PM

4 valves will flow much more than 2 valves.

Weldangrind · 01-12-2011, 03:42 PM

Quote:

Originally Posted by bigheavy150

Quote:

Originally Posted by Weldangrind

I don't think I'd buy an engine that says "magical" on it.

I agree

But you never know with china. It may be a good copy on the inside.

How is a 4 valve engine more efficient then a 2? educate me plz

It's all about valve area. If you had one intake valve that measured 1/2" in diameter, the area would be 0.196 square inches. If you had two intake valves that each measured 3/8" in diameter, the total area would be 0.22 square inches, which is a considerable increase.

recracer · 01-13-2011, 09:19 AM

details photo

Barnone · 01-13-2011, 10:48 AM

RECRACER,
Can you supply a link to the above "detailed photo"?
Are these DB250/DB300 bikes sold in the USA?

recracer · 01-13-2011, 10:56 AM

well there is no link . i was e-mailed to me . if you know a way for me to post with a larger format i'd be happy to do it . i'm told that epa approval is coming , but dot i have not asked . so at this time thay are not in the usa.

Weldangrind · 01-13-2011, 11:30 AM

Which format was it emailed to you in? Pdf? Jpg?

Barnone · 01-13-2011, 01:51 PM

No EPA approval means the engine might get crushed by US customs.

01-12-2011, 02:03 AM	#1
recracer Join Date: Jul 2009 Location: Charles Town W.V. Posts: 849	viva with a 300cc 6 speed Hi guys been a while . thinking of a project for the viva . 300cc 30 horsepower , http://www.alibaba.com/product-gs/35...NG_ENGINE.html all input welcome . will cost 800.00 to get here from china . more can be gotten if it works out . :idea:
	0

01-12-2011, 10:46 AM	#2
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Hey Ron! Thanks for checking in. How's our new bike? I don't think I'd buy an engine that says "magical" on it. I'm not sold on liquid cooled China motors yet. Will they actually ship one engine to you, or do you have to buy a container? __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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01-12-2011, 10:48 AM	#3
bones33 Join Date: Aug 2010 Location: Olympia, WA Posts: 36	A 4 valve motor should be more thermally efficient than a 2 valve motor, and produce more power as well. Could be fun. Just a couple of questions. The alibaba site shows what looks like two different motors, maybe one is pushrod? Do you know which one they will ship to you? How hard will it be to modify the engine mounts to fit the different motor? Where will you mount the radiator, route the hoses? You'll need to fabricate the intake and exhaust systems. Will your ignition system work with this motor? __________________ Member: Zongshen world domination plot.
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01-12-2011, 11:29 AM	#5
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	I'm looking forward to your Megelli thread. I use Photobucket, and it has worked well for me. That 300 would be fun in your Viva, no doubt. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
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01-13-2011, 11:30 AM	#14
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Which format was it emailed to you in? Pdf? Jpg? __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

01-12-2011, 11:22 AM	#4
recracer Join Date: Jul 2009 Location: Charles Town W.V. Posts: 849	hey Weldangrind if you like that type bike buy the ninja 250 i will start a post over in street ,i've away from here a while and find i can't host photos from myspace any more so i'll have to do something else there .. yes i can buy 1 engine from them and the cost would go down for more than 1 . engine comes with intake carburater ,radiator (s) my choice and they'll add the front pipe for extra . the engines just look different left and right side , but the do have others as well , do wish i had a frame to mock it up tho . think a gy-5 has more room .
	0

01-12-2011, 01:42 PM	#7
Cal25 Join Date: Feb 2008 Location: Terrell and Grapevine Tx. Posts: 1,585	My Hibird 250 is a GY2 and it is overhead cam if that helps.
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01-12-2011, 02:24 PM	#9
Cal25 Join Date: Feb 2008 Location: Terrell and Grapevine Tx. Posts: 1,585	4 valves will flow much more than 2 valves.
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01-13-2011, 09:19 AM	#11
recracer Join Date: Jul 2009 Location: Charles Town W.V. Posts: 849	details photo
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01-13-2011, 10:48 AM	#12
Barnone Join Date: Feb 2007 Posts: 1,354	RECRACER, Can you supply a link to the above "detailed photo"? Are these DB250/DB300 bikes sold in the USA?
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01-13-2011, 10:56 AM	#13
recracer Join Date: Jul 2009 Location: Charles Town W.V. Posts: 849	well there is no link . i was e-mailed to me . if you know a way for me to post with a larger format i'd be happy to do it . i'm told that epa approval is coming , but dot i have not asked . so at this time thay are not in the usa.
	0

01-13-2011, 01:51 PM	#15
Barnone Join Date: Feb 2007 Posts: 1,354	No EPA approval means the engine might get crushed by US customs.
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