300ex running with the 450s

[Tri-valleyracin]

What will have to do to get my 300ex running with the 450s. i can run with the 400s on a stock motor but not in the straits. i was thinking a cr500 motor or trx250r motor. i have good suspention but no the motor to do it. i was goin to sell it but i love the bike and cant bring my self to. unless i get some one to give me the right price.

[2muchquad]

As long as you can ride,stay in the woods or on a techincal mx track,the 450s will destroy you in the long straights.You can get some hp from a built 300 but not near the 50hp range of a tuned 4 fiddy:(

[bwamos]

Performance wise. Not a dang thing.

The technology (head design, etc), just isn't there.

Just get them to go where it's all rider. ;)

[maddmatt02]

yeah but hes not talkin about keeping the 300, hes thinking of swapping.

[bwamos]

Ahh.. I see that now.

I've seen 250r motors done. But for the price and headache.. you may as well buy a full aftermarket 250r.

CR500 motor in a 300ex frame = a painful, bloody, death.. lol.

[dork]

a bored 380 kit with headwork, proper cam and carb will run with stock 450s.

[Tri-valleyracin]

Originally posted by bwamos

CR500 motor in a 300ex frame = a painful, bloody, death.. lol.

yes but the way i will be making the hybrid it will be using a 450r swing arm and rubber in the mounts. it will have rubber gromets at all the mounts. it will have 400ex front end with shocks. dont know the size yet! it will also have 60 hp stock and i bet it will out handle and run the 450s. this is wat mine will look like but red and black with a 450r swinger and a long travel front end.

http://i172.photobucket.com/albums/w8/Raver4x/trx500rx.jpg

[bwamos]

The longer 450r swinger will sure help.

It would definatly be a fun quad.. lol. I've always wanted to build a CR500 quad.

Good rubber mounts, and an anti vibe stem w/ flex bars and you probably wouldn't lose your teeth.. lol.

[dork]

that's a sweet ride, either way watch out these frames flex alot when you start pushing them.

[SET THE STAGE]

THAT THING IS AWESOME haha

makes me want to ditch my 300 engine and put a 250r in that..

[Blue250X]

Where can you get a gusset kit for these frames?

[honda300EXtreme]

yea looks like a pretty cool idea...

id love to see how it runs....


yea a longer swinger and some frame guessets are must have in this case

[Tri-valleyracin]

well i got the 400ex a-arms for it yesterday and put them on today. im goin to be runnning the 300ex motor untill i get my dads z440 done. but after the z440 is done the 300 motor is coming out.

[bwamos]

Originally posted by Blue250X
Where can you get a gusset kit for these frames?

You just have to homegrow one. ;) If you do a search for "300ex gusset", there is a couple good threads on where you need to gusset.

[Blue250X]

Originally posted by bwamos
You just have to homegrow one. ;) If you do a search for "300ex gusset", there is a couple good threads on where you need to gusset.

Alright thanks.

[Tri-valleyracin]

well i started to work on the quad for a bigger motor. i put a 400ex front end and 450r shocks. i got a +2 laegar fronted with works shocks for sale now.

[Tri-valleyracin]

well its going on hold for a long time. i broke my collar bone racing sunday and im going to be building a 66 mustang race car after it heals. my dad will be building a z440 this winter and hopfuly he can do some work on the 300ex to but all my $ is going into the race car.

[bwamos]

Originally posted by Tri-valleyracin
all my $ is going into the race car.

Sounds like fun. :)