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SIKMIC
Moderator
Joined: 29 Jun 2006
Posts: 1112
Location: Moranbah Qld
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 Posted: Tue Jul 04, 2006 10:12 pm Post subject: V-Twin Quad.. Maybe |
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You guys might have read this off ATV Riders forums but I thought I'd post it here for those of you who haven't.
Aprillia already has such an engine. It's for their new RXV enduro bike and SXV supermoto bike. Comes in both 450cc and 550cc versions. I've yet to see any facts about HP, but the 450 version is suppose to put out 55hp. I'm not inclined to doubt that since the engineers from that part of the world are known for making dead serious HP in similar sized engines.
I have no reason to think Aprillia plans to build a quad. But wouldn't it be cool if somehow this V-Twin 450 made it into Can-Am's currently under development, suppose-to-be-race-ready 450 sport quad?? Extremely unlikely? Sure but it's still fun to imagine. I'm sure penty of Yamahondkawzuki loyalists would bite their tongue and buy a Can-Am (Bombardier's new, old name) if it had a 55 hp twin. But what's MORE realistic is that the RXV/SXV bikes will prove that small displacement multi cylinder engines can work in high performance off-road applications. Applications where engine weight and size can only get so big before singles just make more sense. THAT might encourage the Big Four to put their R&D to work on something new and innovative.
Why the hell can't Honda build an engine like this and put it in a sport quad? Maybe make a 450 and a 550 or 650. I know they could if they wanted to. Sometimes they are conservative to a fault about what products to bring to the public. Yamaha could (and maybe would) do it though. Keeping costs down would be tough. But even if they cost $1000-1500 more than a single I bet they'd still sell tons of them.
_________________
Mic
YFZ450
Thanks to ATV's Unlimited &
Luke Beechey Motorsports
mic902@hotmail.com |
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yogie
Moderator
Joined: 14 Feb 2006
Posts: 3620
Location: The Otways
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| Posted: Tue Jul 04, 2006 10:41 pm Post subject: |
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mate if you want a Vtwin the KFX 700 is the go for you chap... 
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2005 KFX700
With a few bells and whistles
and the twin yoshi's 
American Star A-arms, tie rods
elka stickers
Shorty Shifter
I have a Waco
rossco gave me a flexx sticker
honda thumb
Great at climbing trees 
durablue stickers |
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SIKMIC
Moderator
Joined: 29 Jun 2006
Posts: 1112
Location: Moranbah Qld
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| Posted: Tue Jul 04, 2006 10:43 pm Post subject: |
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Nah i dont want one. I just posted that to give somepeople something to read. And I dont think the KFX700 would be as motox friedly as some quads.
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Mic
YFZ450
Thanks to ATV's Unlimited &
Luke Beechey Motorsports
mic902@hotmail.com |
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zbeast
50cc nipper
Joined: 12 Apr 2006
Posts: 23
Location: NSW
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| Posted: Wed Jul 05, 2006 1:47 am Post subject: |
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| Apparently the 550 puts out around 70hp at the wheel in the SVX so it shouldn't be too hard to get 55 - 60 from the 450. In the last issue of AMCN they had a photo of a new 450 parallel twin 4 stroke from Yamaha for jetski's that supposedly makes 80hp. Then again Yamaha said the new R6 revved to 17000 rpm when it has been proven that its actually only 16000 so you have to take their claims with a grain of salt. Still, even if its 20% out that is 64hp which costs a lot to get out of a single. |
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PeteW
Moderator
Joined: 09 Feb 2006
Posts: 1877
Location: Doreen, Vic
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| Posted: Wed Jul 05, 2006 8:47 pm Post subject: |
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A mate of mine is getting an SVX550 supermoto bike and has said I can have a test ride so I'll let you all know what the good old seat dyno tells me.
Ever since I heard about the Aprillia 450/550 twin I've been thinking about how to get one to put in a quad frame, pity they are about $17k.
Any of the Jap Manufacturers could build a twin of some description. Yamaha could easily develop a 500 paralell twin from their current technology as could Honda build a V twin out of theirs.
Oh and Yogie the Aprillia twin is a PERFORMANCE engine not a tractor motor, no comparison.
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SIKMIC
Moderator
Joined: 29 Jun 2006
Posts: 1112
Location: Moranbah Qld
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| Posted: Wed Jul 05, 2006 9:39 pm Post subject: |
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It would be awsum if I could get one to put in a quad chassis. Maybe someone will send theirs down the road on its side in the future and I can get the engine out of that for a test dummy. Owell. Costs nothing to dream... 
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Mic
YFZ450
Thanks to ATV's Unlimited &
Luke Beechey Motorsports
mic902@hotmail.com |
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zbeast
50cc nipper
Joined: 12 Apr 2006
Posts: 23
Location: NSW
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| Posted: Wed Jul 05, 2006 9:45 pm Post subject: |
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Suzuki also make a bike called the SV650 which is good for about 85hp. Don't know how the motor would take jumping but would make one hell of a flat track beast. It even fits within the MA regs of twin <700cc +5%.  |
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SIKMIC
Moderator
Joined: 29 Jun 2006
Posts: 1112
Location: Moranbah Qld
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| Posted: Wed Jul 05, 2006 9:50 pm Post subject: |
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Nah Suzuki's and me dont go well. I seem to have a bad case of sexy hands with them (every Suzuki i touch i ***K) Good idea though, someone should give it a go.
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Mic
YFZ450
Thanks to ATV's Unlimited &
Luke Beechey Motorsports
mic902@hotmail.com |
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PeteW
Moderator
Joined: 09 Feb 2006
Posts: 1877
Location: Doreen, Vic
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| Posted: Wed Jul 05, 2006 9:55 pm Post subject: |
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I think the Aprillia's will be a little more robust than to get written off after a slide down the road.
SV motor would be good cept for the fact that they are too heavy.
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www.dirtcomp.com.au |
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SIKMIC
Moderator
Joined: 29 Jun 2006
Posts: 1112
Location: Moranbah Qld
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| Posted: Wed Jul 05, 2006 9:59 pm Post subject: |
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Im not really going into any major details. Just sharing some crazy ideas... lol. For jumping it might be a bit heavy but it could be good for dirt track.
_________________
Mic
YFZ450
Thanks to ATV's Unlimited &
Luke Beechey Motorsports
mic902@hotmail.com |
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Ryno
Blaster class
Joined: 01 Jul 2006
Posts: 121
Location: Dublin sa
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| Posted: Wed Jul 05, 2006 10:18 pm Post subject: |
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| speaking of motors heard the rmz450 motor might have a problem with the coating letting go on the bore and lunching the whole motor wonder if it is the same motor as ltr i would think so |
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SIKMIC
Moderator
Joined: 29 Jun 2006
Posts: 1112
Location: Moranbah Qld
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| Posted: Wed Jul 05, 2006 10:21 pm Post subject: |
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Ive heard that the LTR has problems with the gearbox. Dont know if its definite but a couple of guys in the states stripped 4th gear when they changed under load.
_________________
Mic
YFZ450
Thanks to ATV's Unlimited &
Luke Beechey Motorsports
mic902@hotmail.com |
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Ryno
Blaster class
Joined: 01 Jul 2006
Posts: 121
Location: Dublin sa
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| Posted: Wed Jul 05, 2006 10:31 pm Post subject: |
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| yeah my mate that built my 440 has the rmz that just lunched its self he said they dont look as strong in the gearbox as the trx and yfz i was just about to buy one dont think i will now looking 4 a yfz 05 06 long travel ohlins ect |
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cowchaser
The Day Starts With OZATV !
Joined: 14 Feb 2006
Posts: 1618
Location: Warrnambool
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| Posted: Wed Jul 05, 2006 10:45 pm Post subject: |
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The LT-R only shares the same head and barrel design of the RMZ the bottom end is more like a DRZ it looks a little over engineered if anything. I think it's a lot stronger than the YFZ or the TRX in the bottom end but only time will tell
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Smitty |
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