KymcoForum.com

Scooters - 125 to 300 => People GT 300i => Topic started by: agilebda on December 29, 2013, 07:34:42 PM

Title: Interesting Engine
Post by: agilebda on December 29, 2013, 07:34:42 PM
Hmmmm. I wonder if this will be a direct fit on to the GTI frame. Would be nice huh....

Watch "2013 - 2014 Kymco G5SC 400 cc new generation engine technical photo compilation" on YouTube - https://www.youtube.com/watch?v=OMxHby9B1Bk&feature=youtube_gdata_player (https://www.youtube.com/watch?v=OMxHby9B1Bk&feature=youtube_gdata_player)


Title: sounds interesting but,
Post by: boo on January 02, 2014, 05:02:23 PM
it does not give horsepower and torque specs.
Title: Re: Interesting Engine
Post by: mrmike on January 02, 2014, 07:08:26 PM
  I love my GTI300, but a GTI400 would get my attention.
Title: Re: Interesting Engine
Post by: alphaBETAdog on January 02, 2014, 07:58:06 PM
  I love my GTI300, but a GTI400 would get my attention.

I'm thinking the exact same thing!  Lookss like a great engine and looking forward to what Kymco willuse it in.
Title: Re: Interesting Engine
Post by: de dee on January 02, 2014, 10:11:39 PM
  Is this the  g5sc engine
399 . cc.  hp. 26.5/ 7000 rpm.  torque  37 / 6000 rpm. wheelbase  1570 mm.
dry Wt. 193 kg. tires 120/70  15    150/70  14.     
this is from Xciting  400i
Title: Re: Interesting Engine
Post by: agilebda on January 03, 2014, 12:27:04 AM
26.5 horsepower? I believe the 300 surpasses that at 28.5.
Still would be nice to have a 400 motor. Would be interesting if it can fit on my bike.
Title: Re: Interesting Engine
Post by: de dee on January 03, 2014, 03:16:28 AM
I read the spec,s again and the 26.5 is in KW. thats 36.3 hp.
torque is 37 nm. thats 27.28 foot lb.s  I thought it was all torque at first but with 36 hp. it,s a fast engine wish it was in my downtown,. 
Title: Re: Interesting Engine
Post by: agilebda on January 03, 2014, 04:38:55 PM
If that is the case I would love to have that engine on my scoot.
Title: Re: Interesting Engine
Post by: boo on January 03, 2014, 11:00:14 PM
I read the spec,s again and the 26.5 is in KW. thats 36.3 hp.
torque is 37 nm. thats 27.28 foot lb.s  I thought it was all torque at first but with 36 hp. it,s a fast engine wish it was in my downtown,.

That sounds about right.
Title: 36 hp engine in a Downtown or GT
Post by: boo on January 03, 2014, 11:03:32 PM
would be fantastic.
Wonder if we could talk Kymco into it.
That would be the ultimate mid size scoot.
I`ll start saving my coins now just in case.
Title: Re: Interesting Engine
Post by: AMAC1680 on January 04, 2014, 10:32:27 AM
Then after a while the 400 will seem to fall "just short" on power and the 500 will start to look "perfect"........

and then.........

Be Big,
AMAC
Title: Re: Interesting Engine
Post by: boo on January 11, 2014, 02:46:30 PM
Then after a while the 400 will seem to fall "just short" on power and the 500 will start to look "perfect"........

and then.........

Be Big,
AMAC

A big part of the appeal of the 300-350 class scoots is their curb weight.
Much more desirable than a 450-550 pound scoot, IMHO.
Title: Re: Interesting Engine
Post by: agilebda on July 03, 2014, 01:49:47 AM
So......I was told that the Xciting 400 motor will fit on to the gTi 300 frame with no problem. I think I will have to search for a 400 motor. :o ;)
Title: Re: Interesting Engine
Post by: alphaBETAdog on July 03, 2014, 06:07:06 PM
Roller valve lifters!  Certainly looks like qaulity engine.
Title: Re: Interesting Engine
Post by: nushipwright on October 22, 2014, 06:33:29 PM
So......I was told that the Xciting 400 motor will fit on to the gTi 300 frame with no problem. I think I will have to search for a 400 motor. :o ;)

is this true? or just teasing us?!
Title: Re: Interesting Engine
Post by: zombie on October 22, 2014, 07:58:37 PM
http://bikeglam.com/kymco-g5sc-engine-details-and-pictures/ (http://bikeglam.com/kymco-g5sc-engine-details-and-pictures/)

Nothing ever just "bolts" in. Good luck!
Title: Re: Interesting Engine
Post by: agilebda on October 23, 2014, 06:05:56 PM
Not too sure yet. Even the Kymco dealers in the USA couldn't yet answer this question. However, looking at the engine specs, the stroke is the exact same as the 300 GTI motor.....which means that the cylinder and piston maybe a direct fit. ;)
Title: Re: Interesting Engine
Post by: zombie on October 23, 2014, 07:25:54 PM
Look up the part numbers for the crank. That will tell all.
If the 300 has a lower gear ratio a 400 "kit" will turn it into a little screamer. If the gears are the same you still have a few more HP to play with.

B&L will love this...
Title: Re: Interesting Engine
Post by: agilebda on October 23, 2014, 10:04:40 PM
Thanks Zombie,

Will check that out. I still have not come across a parts schematic with part numbers for the Xciting 400 online. I guess this model is not available yet on the US market.

I should order a set of cylinder gaskets for the 400 and 300 to see if they are identical.

Title: Re: Interesting Engine
Post by: zombie on October 23, 2014, 11:16:52 PM
That's a start... Perhaps Kymco US can verify the crank numbers. I'd call direct to get quicker help.
Title: Re: Interesting Engine
Post by: agilebda on October 23, 2014, 11:41:06 PM
http://bikeglam.com/kymco-g5sc-engine-details-and-pictures/ (http://bikeglam.com/kymco-g5sc-engine-details-and-pictures/)

Nothing ever just "bolts" in. Good luck!

I still remain optimistic that this can fit on the 300 gti frame! ;D ;)
Title: Re: Interesting Engine
Post by: BettinANDlosing on October 23, 2014, 11:56:48 PM
Anyone else notice this:
"Pressure of 10.6 kg / cm ² (hence the marking “sc” – supercharged)"
I don't think it's actually supercharged.........
I think they are just calling it "supercharged" because of the high torque output. LIES LIES LIES!!!!!!!!!! Still a sexy looking engine, but not SUPERCHARGED!!!!! Supercharges are a thing of the past honestly. I hope we see a day where small engine manufacturers start to utilize turbocharging. A turbo IS FREE POWER. Wasted heat goes to producing more compression. A supercharger robs power to make power, a turbo uses waste to produce power. If I ever get the money and free time I have been dreaming to turbo my 250.
Title: Re: Interesting Engine
Post by: gn2 on October 24, 2014, 12:58:56 AM
A turbo IS FREE POWER. Wasted heat goes to producing more compression.

The turbo doesn't increase compression, it increases the inlet pressure and the volume of fuel/air mix.
Its really just a means of burning more fuel.
Title: Re: Interesting Engine
Post by: zombie on October 24, 2014, 01:38:16 AM
On the other thread we figured it out. No SC involved. Their just coining a phrase.
I'm an old school SuperCharger guy myself. I've cut down plenty of Detroit Diesel 671's for small block chevies.
They actually take less HP to run than a mechanical water pump. I'd prefer a blower over a re-plumbed exhaust any day. (there is a pun in there)
Title: Re: Interesting Engine
Post by: nushipwright on October 25, 2014, 03:29:24 PM
Not ot hijack the thread, but SC isn't the past. At least not for Kawasaki. Look at their newest bike the supercharged Ninja H2. I know it's no scooter, but... 300 horsepowers from a 1 liter engine is something to think about....

http://www.motorcyclenews.com/mcn/news/newsresults/new-bikes/2014/september/cologne-show-radical-kawasaki-ninja-h2/_/R-EPI-145072 (http://www.motorcyclenews.com/mcn/news/newsresults/new-bikes/2014/september/cologne-show-radical-kawasaki-ninja-h2/_/R-EPI-145072)

http://www.kawasaki.com/Products/2015-Ninja-H2R (http://www.kawasaki.com/Products/2015-Ninja-H2R)
http://www.ninja-h2.com/ (http://www.ninja-h2.com/)
Title: Re: Interesting Engine
Post by: BettinANDlosing on October 25, 2014, 03:56:13 PM
Not ot hijack the thread, but SC isn't the past. At least not for Kawasaki. Look at their newest bike the supercharged Ninja H2. I know it's no scooter, but... 300 horsepowers from a 1 liter engine is something to think about....

http://www.motorcyclenews.com/mcn/news/newsresults/new-bikes/2014/september/cologne-show-radical-kawasaki-ninja-h2/_/R-EPI-145072 (http://www.motorcyclenews.com/mcn/news/newsresults/new-bikes/2014/september/cologne-show-radical-kawasaki-ninja-h2/_/R-EPI-145072)

http://www.kawasaki.com/Products/2015-Ninja-H2R (http://www.kawasaki.com/Products/2015-Ninja-H2R)
http://www.ninja-h2.com/ (http://www.ninja-h2.com/)

I meant in the past as far as economy. Why do you think you don't see any SC cars except gas guzzling muscle cars (and few of those are sc). The h2 is pretty cool but 100% marketing gimmick, than bike prolly gets 20mpg, and 300hp is to e much to even use on the track, it would get stomped by a motto GP bike except on the straight. They just did that to say "hey look we came out with a bike that's got 300hp". This is all just my opinion of course, but superchargers are the past, turobos are the present and future (and i owned a SC MR2 btw, it got 25mpg while my n/a got over 35mpg).
Title: Re: Interesting Engine
Post by: nushipwright on October 25, 2014, 04:01:08 PM
I get ya! Yes Kawasaki really pulled together all it's branches to create something beautiful, and very interesting from a technical point of view. Amazing machine that is, but I understand it's limitations in real life.
Title: Re: Interesting Engine
Post by: BettinANDlosing on October 25, 2014, 04:32:44 PM
Don't get me wrong either, that thing has an amazing engine. Pure design porn. I would have loved to see it come in a turbo format.
Title: Re: Interesting Engine
Post by: zombie on October 25, 2014, 10:05:55 PM
Turbos suck!

Too many reasons to despise them...
 The GT 500 2015 Mustang has gone back to SC, and it make 675HP/628 lbs torque, at 27 highway mpg
It' a 6.6 liter engine.

Detroit diesel makes the 2 stroke SC + turbo v12 diesel. It's the best engine ever made. They run thousands of hours before needing seals/rings

Turbos run hot/blow seals/clog from carbon, and slow down. They do nothing to increase compression/make power. You need 3-6 of them (worst to best) in line to equal the boost of ONE 671. Actually a forced air induction (hood/cowl scoops) make more power at speed than any turbo I know of.
The concept is cool but the tech end falls flat. Like I said... Gimme a blower any day.

Forty years of building some of the baddest marine engines on the planet, and not a turbo on one of them.
LOTS of blowers tho.