BEST set up

[oddyCBRproject]

okay so i am new but a few buddys and i are going to build up an oddyssey with a cbr600 engine. my question is will it fit better/easier in an FL250 or an FL350. i would like to make the FL350 work and if so what are better motor options how do you convert cbr engine to CLD? would i have to put a solid rear axle in the FL350. we have acces to both rolling chassis but not the original motors. any ideas welcome, but we are not looking for original motor ideas thanx.

PLEASE HELP>

[nutz4sand]

Welcome to the sight.

Sounds like you found a good deal on a motor and figured it need a home. The start of many projects!!! Good luck with it no matter what you decide.

To be honest the 250 frame would only be good for flat drags at a track if you were into that kind of thing. IF you wanted to add a suspension to it thats an option but a lot of work compared to other ideas below. Plus unless its got a good aftermarket rollcage they are not safe over 40-45 mph in a flip/tumble.

The Fl350 frame would be better from the get go due to its already got a suspension. But with that kind of power you still need to upgrade the tranny and brakes and the suspension is far better than the fl250 but it still lacks for the stock 350 motor. With the speeds you will be able to reach with that 600 motor it will be very inadequate. The brakes are nowhere up to the task either.

How much can you purchase these Fl250 and 350 frames for?
Have you looked at a Girard frame? For the cost its a heck of a deal and be easier to build it up to handle the power of the 600CBR with decent travel and good brakes. Plus I think they look a bit better but thats me. By the time you hack up either FL frame you would be looking at only a bit more work for a Girard frame and have a much nicer machien that would likely sell for a lot more if you decided to sell it to build a bigger better one next time.

You could add solid axles to the FL frames but for suspension you would need a swingarm. Its been done and do able but IRS is not that much harder to add on to a Girard vs turning either of the FL frames into a swingaxle unit.

Adding large motors to the FL frames will never be as cheap as it looks. Unless you have ALL the tools and mad fab skills. Even at that if you possess those the better frame would still likley be easier and cheaper in the long run.

Link to Girards:

prosandminirailframes

[oddyCBRproject]

wow those are good prices. what do you think would be the best frame set up for the cbr engine? and at those prices i would rather have a two seater. i have a person who has fab skills. he has cut up a lincoln mark VIII with a 302 H.O. in it and then converted it to a 65' Mustang also put the lincolns whole rear end in the 65' as well. i can get right know, one 85' fl350 rolling chassis for 1200 and or i could get 3 fl250s, one complete and two frames for 800. and we have lots of 400ex parts that would fit those. such as spindles hubs calipers rotors shocks swingarm axle etc. that would bolt up the oddys. lets just make this super easy for me lol. what do you think would be the best set up for suspension wise frame wise and what frame would hold the cbr engine the easist?

[nutz4sand]

Measure your motor and then go measure the Oddey 350 to see how tough it would fit. At least you are dealing with four strokes so the exhaust will be eaiser that the guys who have put twin cylinder sled motors in them. Two stroke pipes can be a monster of a job. The Oddy tranny will likely not live long behind the motor you have so you would have to right away or when the tranny broke put in a spool or pop some good loot down for a bigger tougher tranny. Either way it would be just as easy (or easier-more space) to do that to a Girard frame.

My understanding is the 400ex parts to the Oddy are not a direct bolt on. If you know better that good but its not that simple. But the things you would have to do to make them fit you might be able to use them on the Girard frame as well. I have heard they fit to Pilot a-arms but cannot confirm this. With the motor you have and the speeds it will attain you NEED front brakes. Even in the sand. Those who say they do not help in the sand are feeding you a line. Even with front smoothies they assist greatly by making the fronts plow deeper in the stuff.

As for the frame go for the two seater long travel version. More travel will never make you angry to have. Short travel is just that. Build all the travel you reasonably can that will keep the suspension in good geometery.

The bike engine in the Girard chassis is gonna be easiest due to you will have to build tubes and supports OUT to it to hold it. Simply add till its done. With the Oddey you will have to make it fit and cut a few tubes out then fab tubes to mount the motor and then reconstruct the strength back in for any stress baring frame tubs you may have tinkered with. Lots more room in the Girard for exhaust and fuel tank too.

The cost of the Oddy frame alone you could snag the Girard and all his suspension he sells and maybe even the some of the rear drivetrain depending on how you wanna do your rear end. Its the way I would go. That frame with his suspension will be betetrthan the oddy anyday.

You going rear spool or you want reverse or a diff or??