My new Hybrid

The hyrbid kid · February 10, 2007, 06:05:35 PM

Well it started a 2000 400ex then became
A 2003 crf450ex

Its got fully houser and axis susp
Douglas and itp
A custom pipe

And alot of HR racing customs..

FIVE-O · February 10, 2007, 06:11:13 PM

Looks good.

k.p. · February 10, 2007, 06:25:13 PM

very nice.how fast would one of those go?

The hyrbid kid · February 10, 2007, 09:00:18 PM

Idk for a top speed but i do know the power this thing has i wouldnt switch back to my trx450r or my yfz
This thing is ungodly

Eric5555 · February 10, 2007, 09:43:15 PM

that bike looks sooo nice

The hyrbid kid · February 10, 2007, 10:00:00 PM

Mondy i gotta order my graphic kit a tc pipe chain rail for the bottom and some other odds and ends.

Young Gun · February 11, 2007, 10:03:21 AM

That thing is nice. Can you just bolt up the dirtbike motor or do you have to get a frame custom made to fit it, but still be a 400EX chassis?

klutchbuster400 · February 11, 2007, 11:53:07 AM

Very nice!!!!

gearhead400 · February 11, 2007, 02:47:05 PM

thats awesome! i bet its a blast to ride.

The hyrbid kid · February 11, 2007, 03:46:01 PM

Well tested it today at bartow and all i can say is HOLY SH!T
This thing is crazy..
And thanks everyone for the comments

And no u have to buy different motor mounts and customize the frame a little..

But still a stock 400ex chassis

300EXRACER · February 17, 2007, 09:52:54 PM

id take that over any quad.
thats some insane power

gearhead400 · February 18, 2007, 11:19:55 PM

Quote from: WALSH450R on February 10, 2007, 09:00:18 PM
Idk for a top speed but i do know the power this thing has i wouldnt switch back to my trx450r or my yfz
This thing is ungodly

oh, no worries, i'll take one off your hands.

Anoriginal · February 19, 2007, 08:01:13 AM

Did you finish paying for it yet?

The hyrbid kid · February 19, 2007, 01:18:59 PM

yep

YAMAHONDAMAN · February 20, 2007, 04:27:25 PM

Quote from: SuzukiRacer on February 11, 2007, 10:03:21 AM
That thing is nice. Can you just bolt up the dirtbike motor or do you have to get a frame custom made to fit it, but still be a 400EX chassis?

Working at a Machine Shop helps alot when you have to do stuff like that.... MUCH Faster than the Reg. 450

The hyrbid kid · February 20, 2007, 05:23:36 PM

And finaly the builder chimes in

The Quad FaJa · February 20, 2007, 08:07:13 PM

Looks good...I like how they did the radiator.

YAMAHONDAMAN · February 21, 2007, 04:34:26 PM

Quote from: The Quad FaJa on February 20, 2007, 08:07:13 PM
Looks good...I like how they did the radiator.

the Radiator is an aftermarket YFZ that was a NASTY 500 Bucs !!
the Vids look cool Walsh....GIT IT RAGGGGGGGGGGG !!!

The hyrbid kid · February 21, 2007, 10:21:50 PM

That nasty radiator also has a tiny hole in it..
C&R might not be that great...
Nothing a little tig welding wont fix..

hondarider95 · March 11, 2007, 03:05:28 AM

What makes the crf450 a faster engine than the trx450?

digginfool · March 11, 2007, 08:44:52 AM

It's a 2-stroke. It would be like having a 750-800cc 4-stroke in a 400EX frame. That thing must really haul-balls!

Eric5555 · March 11, 2007, 10:41:20 AM

Quote from: digginfool on March 11, 2007, 08:44:52 AM
It's a 2-stroke. It would be like having a 750-800cc 4-stroke in a 400EX frame. That thing must really haul-balls!

its not a 2 stroke

The hyrbid kid · March 11, 2007, 03:25:54 PM

Its a CRF450R FOUR STROKE

digginfool · March 12, 2007, 07:18:18 AM

I need to read a little better. I guess all I saw was the CR. My bad. That does bring up a valid question; why would the CRF motor be any better than the TRX motor? The TRX motor would be tuned to move the heavier weight but the CRF motor would probably have slightly higher power up top. I don't see a huge advantage there. Now you have to admit, a CR450 (or 500) motor stuffed into a 400EX frame would be very interesting.

svtbolt04 · March 12, 2007, 10:26:00 AM

Pretty sure its the bore and stroke.

450r engine is 96.0mm x 62.0mm
cr450f engine is 96.0mm x 62.1mm

But... I ask myself the same question all the time.

digginfool · March 12, 2007, 01:30:40 PM

So they share the same bore and stroke; no advantage there. Obviously, the only difference is in breathing and, most likely, flywheel weight. For the added weight of a quad, I think a wider power band with more torque would be more useful than a motor tuned to move a 200 lb dirt bike. The CRF motor can't have much more than a few HP advantage on the top end. That's great if you're running the dunes but last I checked, we don't have too many dunes you can ride on in Florida. All that aside, though, it is a very clean conversion. Good job.

xr100racer · March 12, 2007, 01:37:20 PM

crf450 motor has higher compression, geared differently, etc

think its about a 15hp difference over the trx450

svtbolt04 · March 13, 2007, 02:43:40 AM

Nah, they run the same compression also. And the only thing you could keep for the gearing on the quad would be the 13t sprocket up front.. Because I believe the bikes run standard around 48 whereas a quad runs 38.

quad=12.0:1
bike=12.0:1

for some reason, I could believe the lighter flywheel theory.

digginfool · March 13, 2007, 01:55:32 PM

Actually, I did a little research and the CRF motor has about 11 HP on the TRX motor (50 vs. 39). I also saw mentioned that the CRF motor does have higher compression. Not that that is a good thing; remember, with the higher weight of the quad, you will be putting more load on the engine in low RPM situations which invites detonation. Also, this goes back to the flywheel situation. I would almost be willing to bet money the CRF motor has a lighter flywheel which would put even more load on the engine in low RPM situations. Again, though, it is a very clean conversion and I'll bet money it is WAAAAYYYY more satisfying to ride than the stock (or even modified) 400EX was. I'd take it for a spin!

The hyrbid kid · March 13, 2007, 03:58:36 PM

Its awsome the gearing is great i have a 14t ont he front and a 36 on the back..
I also have a 13.5.1 piston..
Im having stainless valves put in it now..
I dont really like they way the trx's feel i have one but done hardly ride it..
The 400ex feels alot better and handles great.
I love the combo its a blast to ride..

1FasterBlaster · March 13, 2007, 08:34:15 PM

I was lookin for ya at Croom Sunday.Did you go?

The hyrbid kid · March 14, 2007, 11:15:11 PM

No my freind made a track on his job site down in vinice so i went there and rode..
I wanted to go to croom bad but glad i didnt go because my bike took a poop..
Got the vales being set right now ill have the motor back thursday tomorrow and ill be ready..
I might go to hardrock saturday with trx#9 and a freind..
But i got another hyrbid on the way..

i pick it up monday..

trx#9 · March 14, 2007, 11:25:12 PM

Quote from: WALSH450R on March 14, 2007, 11:15:11 PM
No my freind made a track on his job site down in vinice so i went there and rode..
I wanted to go to croom bad but glad i didnt go because my bike took a poop..
Got the vales being set right now ill have the motor back thursday tomorrow and ill be ready..
I might go to hardrock saturday with trx#9 and a freind..
But i got another hyrbid on the way.. i pick it up monday..

My new Hybrid

Anoriginal

xr100racer

1FasterBlaster