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thunderbolt427



Joined: 15 Aug 2009
Posts: 119
Location: Alabama

PostPosted: Wed Sep 30, 2009 2:27 pm    Post subject: Reply with quote



Forgot this one.
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VWVR6_T



Joined: 23 Aug 2009
Posts: 383
Location: Western, PA

PostPosted: Mon Feb 08, 2010 9:51 pm    Post subject: Reply with quote

Bring this back from the dark side, any news, ready for the dirt
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thunderbolt427



Joined: 15 Aug 2009
Posts: 119
Location: Alabama

PostPosted: Wed Feb 10, 2010 11:54 am    Post subject: Reply with quote

I shaved my motor mounts and that brought my flywheel past the bottom of the chassis so it stick out to far. ill need a smaller flywheel or may make the one i have smaller. other than that nothing to report as of yet . Promise i'll let you know when i get back into things.
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6sharky9



Joined: 15 May 2012
Posts: 20
Location: Alabama

PostPosted: Tue May 15, 2012 3:03 pm    Post subject: Reply with quote

this is thunderbolt427...i guess ive forgotten the correct password so i had t make a new account...i dont recall what email address i used so couldnt get the password sent to me...the only thing to update is i had motor problems..i think the sleeve was just to worn and i couldnt keep the motor running despite trying new plugs and alot of carb adjustments..the clutch was fine and all the motor bearings were fine..Ive done some testing with the Hyper.21 that came with the earlier hyper 7 RTR buggy kits..its a 3 port motor...ive done major mods to it and initial start up has been ok...im just getting back into things and alittle rusty it seems..when i get get back fully into things i will do a write up on the engine mods ive done to the motor with before and after pics..ive seen the insides of many "PRO" modded engines and ive taken the best of the best and incorporated it into the motor..theres a little surprise im saving for the wright up..i hope everyone likes it.
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6sharky9



Joined: 15 May 2012
Posts: 20
Location: Alabama

PostPosted: Sun Jul 01, 2012 11:21 pm    Post subject: Reply with quote

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rc-demon



Joined: 05 May 2013
Posts: 38

PostPosted: Sun May 05, 2013 3:12 pm    Post subject: Reply with quote

Have you got any updates on this?

So what are those engine mods you went with finally?

I would recommend posting larger pictures if you can, its kinda hard seeing those small pics and i want to see the great job you did! LOL

How does it drive?
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6sharky9



Joined: 15 May 2012
Posts: 20
Location: Alabama

PostPosted: Fri Jan 29, 2016 12:44 pm    Post subject: Reply with quote

Id have to pull the motor apart to remember what all i did..The mods were minimal but i covered every aspect of improving air flow velocity and not really much with increasing the amount of air flow, or CFM.

I radusied all the sharper edges of the crank and connecting rod.. oil passages on the rod were chamfered...the underside of the pistons sharp edges were radiused...The top of the piston was polished to an extreme mirror like luster as was the combustion chamber...The combustion chamber recieved 4 chamfers to aid in combustion efficiency...The scoop on the crank was slighty deepened and it was fully polished to a mirror like luster as the connecting rod was...The sleeve was treated to all the ports being radiused with the usual chamfers and radiused the bottom edges of the sleeve...I worked on a lot of areas but nothing extreme with major changes.

If i can remember how to post pics i can show some of the work i did but on a different motor..I did an rtr .15 motor i used in a 1/10 stadium truck that was a flat out rocket ship.

As far as the buggy now it has no servos or motor in it and has seen better days but i still have it..it wouldnt take much to bring it back up to looking new and running again.
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6sharky9



Joined: 15 May 2012
Posts: 20
Location: Alabama

PostPosted: Fri Jan 29, 2016 12:56 pm    Post subject: Reply with quote

Heres a pic of how its sitting now...The motor in it now was one of the Hyper .21 sport 3 port motors....ill take it apart and take some pics when i get a chance...click on the pics for a much larger view.


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