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spanky101
06-20-2006, 08:43 PM
hey guys i kno alot of guys who do hybrid quads they run the 400 frames... now where do you guys get your motors? i cant find em
hondaboy400ex55
06-20-2006, 08:54 PM
alot of people get them from ebay

why what kinda hybrid do you have in mind?
spanky101
06-20-2006, 10:09 PM
in my dreams i would love a kawi hybrid but proboly go with a honda crf 450
eganracing
06-20-2006, 11:28 PM
here u go. these r off ebay.

http://cgi.ebay.com/ebaymotors/crf450r-crf450-crf-450-r-x-engine-motor-Brand-NEW_W0QQcmdZViewItemQQcategoryZ35595QQihZ009QQitem Z190000401580QQrdZ1QQsspagenameZWDVW

http://cgi.ebay.com/ebaymotors/CRF450R-MOTOR-KART-ENGINE-CRF450-03-450F-04-05_W0QQcmdZViewItemQQcategoryZ35595QQihZ003QQitemZ 130000303698QQrdZ1QQsspagenameZWD1V

ok nevermind. those tlinks didnt work but if u go to ebay and do a search on CRF450 engine u will find two complete. one is 1500 and the other is 2700.
440_Turtle
06-21-2006, 06:41 AM
what abotu a YFZ hybrid. arent those enginew more powerful than the cfr engine?
krt400ex
06-21-2006, 07:17 AM
Originally posted by 440_Turtle
what abotu a YFZ hybrid. arent those enginew more powerful than the cfr engine?

no. an '04 yz-f engine is brutal though
yamaha91
06-21-2006, 07:51 AM
Why don't people ever use the 450R engine in hybrids.
eganracing
06-21-2006, 09:52 AM
there hard to come by and the dirtbike engines are more powerful i think.
krt400ex
06-21-2006, 11:37 AM
Originally posted by eganracing
there hard to come by and the dirtbike engines are more powerful i think.


the bike engines are more powerful than the '05 450r. they are about the same as the '06. the used ones are harder to come by. u could just buy a new one.
PismoLocal
06-21-2006, 03:41 PM
I have always wanted to build a hybrid too. My dream motor would be a crf450 motor with a big bore athena 490 kit, with aftermarket cam, flywheel, clutch, and ignition. I want to put one in a 250r or 400ex chasis. I'll never end up doing it but if some one did that would be the sickest quad ever.
ride_red666
06-21-2006, 05:43 PM
i want to to bulid a hybrid with a ktm 540 in whatever frame it will fit in a few years... that quad will rip
eganracing
06-21-2006, 06:03 PM
i think they did that in a mag a few years ago.
DieselBoy
06-21-2006, 07:09 PM
YZF ENGINE! how come nobody puts the 250r motor in the 400ex?
BossmanEX
06-21-2006, 08:31 PM
One f my best buds has a XR650 and I would absolutely looooove to have that motor in my EX chassis.
tp300ex
06-21-2006, 08:57 PM
say how much would it cost to do all of this?
eganracing
06-21-2006, 10:01 PM
i think it would be about 2500 to 3000. engines arent cheap and u have to get a wiring harness, electrics, carb, and other misilanious (sp) stuff.
nosliw
06-21-2006, 10:12 PM
Originally posted by DieselBoy
YZF ENGINE! how come nobody puts the 250r motor in the 400ex?


good question. i guess if a guy really wanted it they could go to servicehonda.com and buy theirs already made.
spanky101
06-22-2006, 09:30 AM
i wouldnt mind puttin a ktm 520 motor in this chassis... but ktm engines are harder to cme by... maybe my local ktm dealer knos of a place i can get one...
PismoLocal
06-22-2006, 10:01 AM
Originally posted by DieselBoy
YZF ENGINE! how come nobody puts the 250r motor in the 400ex?
It just doesnt seem like all that practical of an idea because a bone stock yamaha 426 and a honda 450 motor have way more horsepower than a stock 250r motor. You can make a 250r motor crazy fast but it would probably cost way more money than just starting out with a bigger motor in the first place. Another reason is that it would be cheaper to just leave the 250r motor in its frame and build that quad then retro fit a 400ex for a 250r motor.
250x_kyle
06-22-2006, 12:43 PM
i have a hybrid forum in my profile most of the ppl thereknow what they are talking about. jrspawn knows the most of all i think. anywho im going to be building a yz426f hybrid with a 400ex chassis
DieselBoy
06-22-2006, 06:26 PM
which one do you think has better handling stock? the TRX250R, or the TRX400EX?
krt400ex
06-23-2006, 04:55 AM
Originally posted by DieselBoy
which one do you think has better handling stock? the TRX250R, or the TRX400EX?


400ex
250x_kyle
06-23-2006, 09:11 AM
if anyone builds a hybrid go with an aftermarket 250r geometry frame if at all possible. they are better handled on the mx track when it comes to an lt front end. im going with a 400ex chassis because i already have one and its most afordable for me like i said check the my hybrid forum in my profile out and any questions will be answered.