Rotax 440 in a hawk

[TLKDPROD]

SnowHawkaddict says : "55 pounds for the 440 engine".

I say : 55 pounds sure sounds interesting to me for about 100 horses. And it probably sits lower in the frame than the 503, than the 6 or 800 hunnert as well so you probably don't even feel the whole weight of it.

Definetly not a bad motor choice if you want that race 125cc 2 stroke motorbike feeling. Personnally I went 800cc 150" track because of the terrain and the amount of snow I ride on, if I were anywhere else than western Can/US, I might stick with something smaller, shorter and lighter.

It feels like this debate could be transposed to a guy hesitating at buying a 250F and a 450F. Before saying "450F all the way because it's only 10 pounds heavier and twice the amount of HP", we should ask first : what do you want to do with it... ?

Mtn use : 800 all the way. Never forget that we loose 3 to 4 percent of your output per 1000'... that's 21% at 7000'. Your 140 HP machine then ends up being a 110 HP machine. The same principle also applies for a 503...

Sea level : Whatever you got, you'll have fun !
______________

Additional Info: a TRA3 weight about 13.4 pounds don't know about the stock 503-600 Salad Bowl primary, probably around 3 pounds lighter.

 

[diirtbag]

I think a 440 would be worth installing ,they really turn on when you wind em up,just have to get used to the power delivery(no bottom end), it should work good when its all tuned..it would be a much different feel than an 8 or 6.I know I really like my womans little 440 xcr it is so light feeling ,I think a lot of that is how the engine relates to the chassis,as my old 650 in about the same chassis was a whole different machine,I think the same effect to a hawk would be a very stand out unique machine well worth the mod,I would rather fine tune that than a fanner anyday,dont get me wrong though a stock fanner would be wicked to

 

[snowhawkaddict]

Powered down.

No mater which powerplant these things look shweeeeeet! TLK's.

 

[cjgodden]

well I got 71.6 lbs for my 600. So thats 15 lbs between the other three that are all within one pound of each other.

 

[off road rider]

Great info..Isnt the 440 basically a 600 lower end??
Cements my thoughts and Im glad Im not wasting $$ on the 503 mill..

 

[snowhawkaddict]

Yes

Cases.

"http://www.snowest.com/forum/showthread.php?t=164003" See where you LOOK!

 

[TLKDPROD]

Interesting to know that the 6 and 8 are virtually the same weight !!!

The 800HO and 700HO ars designed off of the 600HO engine (Rotax series 3 Twin). That explains their same weight and smaller ports for the 800 compared to the 600 (That doesn't make sense to me by the way to go smaller ports for a bigger bore but that's the way they did it...) Apparently for the size of the cylinders, the 700 hits it dead on. New 800R motor ports are HYOUUUUDGE.

Pretty cheap and interesting mod for 600HO guys, they can get the 700 jugs and a good set of dual ring piston, everything bolts right back on. Head needs a bit of work. Adds a good honest 20 horses to what you got. All of that for less than a 1000$. If you need a piston/ring maintenance, i'd go for it. Cheaper than going big bore 734 and cheaper than going 800HO.

 

[Nightrain]

700cc

I haven't doone the rings on my 600 yet, so nows maybe the time for an upgrade.
what year or models 700 will fit on my 04 600?

 

[snowhawkaddict]

800HO ankle biter.

http://2strokeheads.com/bigbore.htm

The 440 will be a

!

 

[predatorr03]

question for nightrain

hey nightrain,are you still running the original rings on your 04 600 ? any problems at all?

 

[Nightrain]

bad rings

I don't know I haven't tore down yet.
I only have a few tanks or gas threw it but I'm not going to start it again untill I fix any potential problems

 

[predatorr03]

wiseco pistons and rings

i'm thinking about putting a wiseco piston and rings set insted of just stock replacement rings in my 04 600 cause it runs me about the same price,wondering if i should? any advise guys? thanks.

 

[TLKDPROD]

I don't know if Wiseco 600HO pistons are dual rings, if they are, then you should go Wiseco. They won't "heat soak" as quick as a single ring.

Single ring over dual ring info : http://www.2strokeheads.com/tech6.htm
Lots of good interesting info on RKT website by the way.

 

[RudeAwakening]

i heard wiseco pistons were not any good! but then agian, you have to take everything with a grain of salt now a days!

 

[diirtbag]

I believe the thing with wisco is you have to make sure its up to operating temp

 

[snowhawkaddict]

Weisco, that's what I'll be using, feeling like a!

http://www.youtube.com/watch?v=Qyf8oRF6Trg&feature=related

440 Clutch and Rev motor mount 75.5lbs


The Addict clutching a camcorder and fully jacketed 302lbs

The bottle won't weigh, all most empty!

Should carry Austin Danger Donough just fine.

 

[TLKDPROD]

I can't beleive this schweet little thang still sleeps in your garage as she's waiting to be ridden HARD and SCREAM LOUD

Gotta say I've first seen this thing the day before '08 Hawkfest in Baker. There she is again... waiting for a man to ride her. Maybe she needs a smaller guy, that's it. Here's the answer !

Also, I can't see why you didn't take the TRA off of it and put it one of you 600s...

Another thing : if this 440 has the same bottom end as a 600, why don't you salvage one of your 600 crank and throw it at her !!! One 600 and one 440 makes more sense to me than two 600s, doesn't it ?

Someone needs to chime in this Seattle garage and get some stuff done before the begining of the season !!! I'll provide you with some "440" decals if you want, that would be my contribution to the project !

 

[snowhawkaddict]

Get on it!

Incorporate the words Night Train Rotax 440 and throw some color at that film.

Something similar to your ones that rhymed with,

Geting tired of the fowl names.

 

[Twostroke]

Nighttrain and T-bird, now we are talking! Mix them both with some colt 45 and drink them through a funnel

 

[cjgodden]

http://www.youtube.com/watch?v=EohMrbV11q8