Putting things in places they ought not to be (250R Hybrid Motor build)

[Billy Golightly]

I'm not terribly familiar, but isn't there some sort of mallory metal or something that you can drill out areas and fill with that? It's heavy metal or something if I'm not mistaken. If this doesn't make sense I've been awake far too long. I'm just going by memory, no time for Googling or anything right now. Time for bed.

Yes in fact I believe alot of the crank weights are holes drilled that then have tungsten rods pressed into as it is denser/heavier than regular steel. I'm sure there are other proprietary types also.

The thing is, with the Honda cranks with the "tins" on it, you are kinda limited to what you can do vs others that do not have that.

[fabiodriven]

My thoughts were adding mallory to the counter balance. Too small is it?

[C.J]

You could drill plugs out and refill them with it. It would be a bit tedious, but would be worth it in the end


92 JP Outlaw hybrid (in progress)

87 LT265R (not much left stock)

[Billy Golightly]

Some more progress. I think I finally got my coolant lines figured out, did the second spigot mount on my mock up cylinder. AND I put on a full size regular tank and shrouds. Now that I know it is possible, I will finish putting the bottom end together, drill and tap the "good cylinder", and then, basically, try and figure out where the hell my electricals will go....

You can see here my original location for the water neck, but wouldn't work after I had the pipe made. The new location just BARELY clearances the pipe. I will still probably put some reflective heat sheathing around the hose (and maybe backside of the pipe too even)

Words cannot adequately describe how rewarding it was after cutting up half a dozen coolant lines and staring at this thing for the last month to finally lay my head down on the concrete shop floor, looking up, and actually see light between the pipe and that coolant line. Everything is so tight and such a cluster, I really needed to see that...

I think it looks like I have an octopuss in my frame now, basically.

Found a couple more close calls. You see how close the petcock there is to the side of the intake, which should really give you guys a good idea of how much bigger around this cylinder and engine really is than the standard 250R.

Another spot, this is the corner of where I had to weld the head up. I pulled it back off and hit it with a big rasp file and have the corner rounded off much more. The Short-track tank I mocked up with before wasn't close here, so I guess that is another spot the must have trimmed some size and weight from on them! And now for your viewing pleasure, full size tank and shrouds. Will definitely need some reflective heat wrap/tape, but hell, it fits and bolts down which is better than I had expected!!

[Dirtcrasher]

Awesome, just awesome!!

[tecaterob]

Man that looks sweet!!!!!

[onformula1]

Really cool!

It looks like someone Photoshopped a HUGE barrell, head and a pipe on a 250r.

[Billy Golightly]

Really cool!

It looks like someone Photoshopped a HUGE barrell, head and a pipe on a 250r.

That would have been much much simpler...

[onformula1]

Thank you for keeping the power valve, I can't believe you made it fit, but it is the coolest part of the build...To me.

That and you didn't have someone else build it for you.

[oscarmayer]

looks bad @$$ sir!
is it too late to make 1 recommendation on the cylinderhead water spout?
i had a simular issue on our ATV race motor. I found it easier to move the water spout to the left side of the motor (sittign on the bike) and then routing the water lines. this allowed me to have a straighter connection to the inlet on the rad as well as it got it out of the way of the mounting spots for the tank.
not sure if ti will help, but that is what we did. the bike is town down now (welding on final lower mount and preping for powder), but i hope that gives you an idea.

it does look nice sir. i knwo how hard it is to do custom stuff and make it fit. I am just worried about the viberation on the hose causing you leaks after the metal wears the rubber out. i would hate you to be halfway down the track and you loose your coolant on your leg. tha5t woudl suck and burn at the same time.

keep up the awesome work sir! it looks great!

[Billy Golightly]

I actually mulled over something very similar, but I couldn't figure out how to make the water pump turn backwards, to make it flow that direction. I was going to make the back part of the water pump go to the radiator, and the front go to the cylinder (Opposite of how it is now) but after consideration I figured the enigneers had a reason for looping it the direction they did and decided I'd better try and stick with it.

looks bad @$$ sir!
is it too late to make 1 recommendation on the cylinderhead water spout?
i had a simular issue on our ATV race motor. I found it easier to move the water spout to the left side of the motor (sittign on the bike) and then routing the water lines. this allowed me to have a straighter connection to the inlet on the rad as well as it got it out of the way of the mounting spots for the tank.
not sure if ti will help, but that is what we did. the bike is town down now (welding on final lower mount and preping for powder), but i hope that gives you an idea.

it does look nice sir. i knwo how hard it is to do custom stuff and make it fit. I am just worried about the viberation on the hose causing you leaks after the metal wears the rubber out. i would hate you to be halfway down the track and you loose your coolant on your leg. tha5t woudl suck and burn at the same time.

keep up the awesome work sir! it looks great!

[C.J]

Hey Billy, you know what's next after this one, Huh? You need to build a Krankenstein style Honda engine


92 JP Outlaw hybrid (in progress)

87 LT265R (not much left stock)

[Billy Golightly]

Hey Billy, you know what's next after this one, Huh? You need to build a Krankenstein style Honda engine


92 JP Outlaw hybrid (in progress)

87 LT265R (not much left stock)

Intake towards the front, and exhaust facing backwards, you mean? I tell ya, after working on this thing, I have a whole lot better understanding an idea of what all is involved for something like that. As sad as it is, if I had a good set of cases to work with and I had to do this again, I bet could almost do it in a day. (Definitely NOT INCLUDING THE PIPE) And its taken me a year, lol.

[Ol Deuce]

Intake towards the front, and exhaust facing backwards, you mean? I tell ya, after working on this thing, I have a whole lot better understanding an idea of what all is involved for something like that. As sad as it is, if I had a good set of cases to work with and I had to do this again, I bet could almost do it in a day. (Definitely NOT INCLUDING THE PIPE) And its taken me a year, lol.

Tehehe That's time well spent !!! Ol Deuce

[C.J]

Intake towards the front, and exhaust facing backwards, you mean? I tell ya, after working on this thing, I have a whole lot better understanding an idea of what all is involved for something like that. As sad as it is, if I had a good set of cases to work with and I had to do this again, I bet could almost do it in a day. (Definitely NOT INCLUDING THE PIPE) And its taken me a year, lol.

That's EXACTLY what I mean! I'm working on doing a Suzuki engine like that. And by 'working on' I mean I haven't started it yet but have it all planned out lol

It's crazy how "easy" it is to learn these things if you just take some time to think and actually start working on it. Your engine is coming out KILLER and I can't wait to hear that big f****er bark!!


92 JP Outlaw hybrid (in progress)

87 LT265R (not much left stock)