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Old 02-10-2012, 11:04 PM   #1
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Is there any company that makes a 4 stroke motor for these 5ive t's ?
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Old 02-11-2012, 06:43 AM   #2
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Default Re: 4 stroke motor?

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Originally Posted by theonek View Post
Is there any company that makes a 4 stroke motor for these 5ive t's ?
Unfortunately.... No. Any of the mini-4's on the market today that are designed for other uses just don't produce the power we need.
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Old 02-11-2012, 06:59 AM   #3
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Default Re: 4 stroke motor?

Would be sick to see a mini kawi or Honda or yamaha 4 strokers that makes gobs of power.
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Old 02-11-2012, 08:16 AM   #4
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Thing that would be great would be the torque. I do not care much about horsepower. Someone design a mini diesel....jk
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Old 02-11-2012, 08:39 AM   #5
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Originally Posted by craftwerks-rc View Post
Unfortunately.... No. Any of the mini-4's on the market today that are designed for other uses just don't produce the power we need.
Saw this post and became curious...Looked on the internet and saw that Honda makes a 25 and a 35cc motor for weed wackers..Could those motors be modified to make enough power..Kinda like what they did with the 2 strokes...Coming from MX world our 2 strokes were light, quick, and required very little maintainence whereas our 4 strokes (450R) made tons of tractable power and torque but were heavier and had lots of maintainence...Not discounting on how cool the sound would be with a 4 stroke....Thoughts?
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Old 02-11-2012, 08:45 AM   #6
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Default Re: 4 stroke motor?

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Originally Posted by sjracing View Post
Saw this post and became curious...Looked on the internet and saw that Honda makes a 25 and a 35cc motor for weed wackers..Could those motors be modified to make enough power..Kinda like what they did with the 2 strokes...Coming from MX world our 2 strokes were light, quick, and required very little maintainence whereas our 4 strokes (450R) made tons of tractable power and torque but were heavier and had lots of maintainence...Not discounting on how cool the sound would be with a 4 stroke....Thoughts?
The design of these existing small 4's is not conducive to performance.... They are approx. 1.5 HP stock and very limited to modifications. The cylinder and head are one unit, the camshaft is a plastic, single cam design..... I could go on n on.


Maybe someday there will be a option, but nothing I have seen out there yet has what we need.
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Old 02-11-2012, 09:11 AM   #7
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Default Re: 4 stroke motor?

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Originally Posted by craftwerks-rc View Post
The design of these existing small 4's is not conducive to performance.... They are approx. 1.5 HP stock and very limited to modifications. The cylinder and head are one unit, the camshaft is a plastic, single cam design..... I could go on n on.


Maybe someday there will be a option, but nothing I have seen out there yet has what we need.
Thanks for the info...Just the deep throaty sound of a 4 stroke in these great trucks would be icing on the cake!!!!
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Old 02-11-2012, 09:14 AM   #8
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Thanks for the info...Just the deep throaty sound of a 4 stroke in these great trucks would be icing on the cake!!!!
+1...... That would be SICK! I have a couple of these motors and they do sound killer with a custom exhaust, unfortunately the power is not there to back it up... LOL
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Old 02-11-2012, 10:17 AM   #9
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Damn... Wish there was. I've always owned 4 strokes and never got into 2 strokes at all so this trucks the first one for me. I do love it. It still wish it was a 4 stroke as that's what I'm used too. Lol. The ke for all this input. Awesome...
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Old 02-11-2012, 11:30 AM   #10
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Default Re: 4 stroke motor?

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Originally Posted by smobysport View Post
Thing that would be great would be the torque. I do not care much about horsepower. Someone design a mini diesel....jk
Buy a brushless conversion and do as a guy across the border has done, and fitted the Tamiya sound & light system and connect it to the ESC, when you rev,it does the same, a deisel smokin it up a long hill or a V8 at full chat, ace.
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Old 02-11-2012, 12:14 PM   #11
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Buy a brushless conversion and do as a guy across the border has done, and fitted the Tamiya sound & light system and connect it to the ESC, when you rev,it does the same, a deisel smokin it up a long hill or a V8 at full chat, ace.
Now that is just wrong!! haha
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Old 04-08-2012, 07:56 AM   #12
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Old 04-09-2012, 01:41 AM   #13
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That my friend is freaking awesome! Not a speed demon but definitely fun to play with! I want a FG, gotta hit ebay for a motor!
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Old 04-09-2012, 04:47 AM   #14
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Default Re: 4 stroke motor?

Sounds awesome..... Just wish These motors had a few more HP and were lighter!
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Old 04-09-2012, 05:11 AM   #15
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Default Re: 4 stroke motor?

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Originally Posted by craftwerks-rc View Post
Sounds awesome..... Just wish These motors had a few more HP and were lighter!
I get the feeling it would wallow a lot on single shock's a need for the MT twin shock's maybe.
I do not normally think twin shocks are needed, it is easier to get a decent setup with one shock on each corner.
If you could get it to rev a little bit quicker and also the clutch to bite right in the middle of the torque band it may be quite good fun as a sand dragster when stump pulling grunt is better than high revs.
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Old 04-09-2012, 10:31 AM   #16
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Originally Posted by tracktalkernc View Post
That my friend is freaking awesome! Not a speed demon but definitely fun to play with! I want a FG, gotta hit ebay for a motor!

That engine does not fit on a fg chassis plate, you have to make you own like he did.

He wrote on youtube:

"FG marder beetle converted to 4 stroke .The engine is a honda gx25 made the chasis my self and the radio tray."
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Old 12-24-2017, 10:09 AM   #17
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Default Re: 4 stroke motor?

I been tinkering with this idea as well on a 5ive T platform. I see you can run with a 30 47 gear set to get about 210 more drive shaft rpms. Flip the clutch shoes for better lockup? lighter spring to bring it on at max tq 4k rpm?
It seems to be if you just dropped the rpm down the tq would pull like a freight train. kick up comp ratio 1 point and run 103 octane fuel. Cant get crazy w air cooled comp ratios

49 cc version Engine Model 142F
Engine Type Air-cooled, 4-Stroke, OHV, single cylinder
Bore x Stroke 41.8 x 36 mm (1.65 x 1.42 in)
Displacement 49 cm3 (2.99 cu in)
Compression Ratio 8.0 : 1
Net Horse Power Output 1.6kW (2.1HP) at 7,000 rpm
Net Torque 2.7 Nm (2.0 lbs ft) at 4,500 rpm
Dimensions (L x W x H) 225mm(8.9 in) x 274mm (10.8 in) x 353mm (13.9 in)
Dry Weight 5.5 kg (12.1 lbs)
Thoughts?
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Old 12-24-2017, 07:40 PM   #18
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Sounds good I to have been thinking it would sound so cool to
But I don
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