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Thread: Largest commonly avail watercooled V twin?

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    Refined Crude lover Jay_G's Avatar
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    Largest commonly avail watercooled V twin?

    Looking at options for a powerpant for my Hillman Imp project car, A straight 4 engine like zx12/ gsxr1300 requires cutting of the boot floor due to height and length. So whats the largest watercooled V-twin? I also had thoughts of one of the bmw flat tourer engines. Engine will more than likely be copping a turbo down the track. RSV4 engine would be nice but rare as rocking horse shit.

    ZX12 in imp


    RSV4 engine
    yep

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    DON'T PANIC Gammaboy's Avatar
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    Suzuki M109R - 1800cc, shaft drive output.
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    Retired Finger Painter Karnage's Avatar
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    Depending on your budget what about about a rotax? The ultralight set buy them for repowering their deathtraps?
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    Refined Crude lover Jay_G's Avatar
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    Quote Originally Posted by Karnage View Post
    Depending on your budget what about about a rotax? The ultralight set buy them for repowering their deathtraps?
    Needs to have the gearbag built in, stocko transaxle wont handle the power
    yep

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    Registered User Potsy's Avatar
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    Suzuki SV-1000 ?

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    blinks ... Billzilla's Avatar
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    DON'T PANIC Gammaboy's Avatar
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    Goldwing flat 6?

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    Wanker
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    Go air cooled

    Massive cubic in motor would cool as shit

    Not cheap though
    ..........

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    Temporary Australian rorz's Avatar
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    Would a 2300cc 3 cylinder from a Triumph Rocket III fit? That would be the go...

    Highest power V-twins at the moment are Ducati 1198 and KTM 1190 RC8. The Ducati seems to have a fair bit more power but would be considerably more expensive. Aprilia RSV4 engines are fucking stout but they're attached to such great bikes, I think you'll have a lot of trouble finding one to buy.


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    aka SpaZdA (tm) mondo2000's Avatar
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    Yamaha V-Max engine which is a V4. The new ones are 1600cc, make about 130kw and have bulk torque (for a bike engine).
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    Temporary Australian rorz's Avatar
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    V-Max could be a good option.


    Cut the boot floor and go BMW S1000R? Serious power and RPM...


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    needs boost... morerevsm3's Avatar
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    join 2 RZ500 2 stroke V4s together, V8 1000cc 2 stroke FTW
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    Registered User buket of water's Avatar
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    Last edited by buket of water; 22-05-12 at 07:13 AM.
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    Gimme six Schlitzes Beavis's Avatar
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    The Aprilia donks are made by Rotax. Compact, great power, reliable.

    The boxer BMW engines are nice but don't make much power compared to the Jap stuff. The BMW in-line fours might actually work as they are heavily tilted forwards in their chassis and they have silly fasts.

    The Honda VFR engines were V4s if that could work. The VFR800s were great (except for the VTEC ones) and the newer 1200cc motors are arguably even better (including the VTEC ones.) Packaging is very good; they are very compact. And gear-driven sound FTW! Of course Honda also put V5 donks in their MotoGP bikes.. but not sure if srs

    Ducati have only had high power outputs with their twins since the Testrastretta (998cc) days, but they have been great since then. The 1098 and now 1198 motors are fab but probably spendy.

    How big is a (gulp) Harley V-Rod engine? I think they're actually liquid-cooled. Probably not a lot of power, but probably a good amount of torque and that's what wins races
    Last edited by Beavis; 22-05-12 at 08:56 AM.

  17. #17
    Phone Home Et!'s Avatar
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    To answer the question that he asked im pretty sure m109 or mt01

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    Temporary Australian rorz's Avatar
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    Quote Originally Posted by Et! View Post
    To answer the question that he asked im pretty sure m109 or mt01

    V-rod has more power than an M109.


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    "The bitches, are wet" Sketchy's Avatar
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    Quote Originally Posted by Rorz View Post
    Would a 2300cc 3 cylinder from a Triumph Rocket III fit? That would be the go...

    Highest power V-twins at the moment are Ducati 1198 and KTM 1190 RC8. The Ducati seems to have a fair bit more power but would be considerably more expensive. Aprilia RSV4 engines are fucking stout but they're attached to such great bikes, I think you'll have a lot of trouble finding one to buy.
    These would have been my picks, probably moreso towards the RC8 donk as its a Rotax motor as well and probably less finicky than the Ducati lump. I dont know about the Duke having much more power (like 5-10hp if that stock?) but either way 180-200hp from a tweaked Rotax 1200cc motor will be bulk fun in an imp.

    There was a smashed RC8 on ebay a couple of weeks ago for 4-5k, best way to go because you get the motor,box,loom,ecu,etc. The KTM motors are fully tuneable with the dealer orange key (which I have ) so you can fiddle with it once you've done pipes and intake.

    All comes down to cost however, euro twin is going to be much more expensive than a jap four pot and most of the jap twins are a bit lacklustre. SV1000 would sound good with some custom pipes though....
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    SVK has big end issues apparently.

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    Phone Home Et!'s Avatar
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    Quote Originally Posted by Rorz View Post
    V-rod has more power than an M109.
    Just on a quick google they are only as quick down the quarter as my mate on his 109. I would by a 109 donk for the simple fact that it didnt come outta a harley.

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    if you are going to turbo it go a V4,

    turboing a v-twin (with a decent end result) sounds like a giant clusterfuck with pulses,pressure spikes etc.

    VFR 750&800 engines are cheap,but, they have odd conrods with virtually no aftermarket (better than stock) rods available except mega dollar unobtainium jobbies,and there`s about the same amount of piston/rod length options available. it shouldn`t be a huge issue on relatively low boost and a compassionate rev limit,but if you want 15000rpm or 20psi down its throat then you don`t want one


    if anyone knows where i can get good,strong aftermarket VFR750 rods for a reasonable price, PM me.

    rocket 3 motor would probably be a no go,the gearbox is mounted behind the motor as the motor is inline with the frame,not east west.but they are torquey as fuck and mumbo real well with a T28 on the side
    Last edited by 15UZU; 22-05-12 at 06:07 PM.
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    Quote Originally Posted by Gammaboy View Post
    Goldwing flat 6?



  24. #24
    Temporary Australian rorz's Avatar
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    Quote Originally Posted by Sketchy McSkiddengoober View Post
    These would have been my picks, probably moreso towards the RC8 donk as its a Rotax motor as well and probably less finicky than the Ducati lump. I dont know about the Duke having much more power (like 5-10hp if that stock?) but either way 180-200hp from a tweaked Rotax 1200cc motor will be bulk fun in an imp.

    There was a smashed RC8 on ebay a couple of weeks ago for 4-5k, best way to go because you get the motor,box,loom,ecu,etc. The KTM motors are fully tuneable with the dealer orange key (which I have ) so you can fiddle with it once you've done pipes and intake.

    All comes down to cost however, euro twin is going to be much more expensive than a jap four pot and most of the jap twins are a bit lacklustre. SV1000 would sound good with some custom pipes though....

    I can hang with most superbike's down the straight at PI on the GSXR-750 (to be fair I'm probably getting out of turn 12 slightly better than some of them which helps) but Ducati 1198's, Aprilia RSV4's and BMW S1000R's look to be a cut above the rest. They seem to give no fark for good exit and will blast past just about anything by two thirds of the way down the straight. I had a battle with an 1198 where I would pass him by turn 4 every lap and pull out a solid lead only to have him re-pass down the staight. Took 5 laps to make it stick... I never thought they were that quick either but the new ones are ballistic.

    Like you say though, crashed RC8R's often come up for what I reckon is quite a resonable price while a stacked 1098/1198 would be stupid money. I've seen a bloke asking over $10k for a stinkin' ol 998 that was not just written off but totally destroyed.


    Quote Originally Posted by Et! View Post
    Just on a quick google they are only as quick down the quarter as my mate on his 109. I would by a 109 donk for the simple fact that it didnt come outta a harley.

    The Vrod is slightly faster:

    MEASURED TOP SPEED
    V-Rod: 137mph
    M109: 128mph

    0 - 1/4 MILE
    V-Rod: 11.38sec
    M109: 11.62sec

    0-60MPH
    V-Rod: 3.52sec
    M109: 3.65sec

    0-100MPH
    V-Rod: 8.22sec
    M109: 8.87sec

    POWER TO WEIGHT
    V-Rod: 1:5.99
    M109: 1:7.26

    BRAKING 60-0 MPH (FEET)
    V-Rod: 109.5
    M109: 135.4
    But yeah, you'd probably get the M109 motor for a lot less plus being a Suzuki it'd most likely be bulletproof. I think the M109's are a fair bit heavier than a Vrod too so the engines might offer similar performance. I've never ridden a Vrod but if they're anything like older Harley's, the Suzuki gearbox will also be considerably nicer. Big bang Harley motor definitely sounds better though... M109's sound a little


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  25. #25
    DON'T PANIC Gammaboy's Avatar
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    Quote Originally Posted by myshortyboomba View Post
    SVK has big end issues apparently.
    Only ones I've heard of have been wheelied mercilessly...

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    Registered User Turbo 351's Avatar
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    Quote Originally Posted by Rorz View Post
    I can hang with most superbike's down the straight at PI on the GSXR-750 (to be fair I'm probably getting out of turn 12 slightly better than some of them which helps) but Ducati 1198's, Aprilia RSV4's and BMW S1000R's look to be a cut above the rest. They seem to give no fark for good exit and will blast past just about anything by two thirds of the way down the straight. I had a battle with an 1198 where I would pass him by turn 4 every lap and pull out a solid lead only to have him re-pass down the staight. Took 5 laps to make it stick... I never thought they were that quick either but the new ones are ballistic.

    Like you say though, crashed RC8R's often come up for what I reckon is quite a resonable price while a stacked 1098/1198 would be stupid money. I've seen a bloke asking over $10k for a stinkin' ol 998 that was not just written off but totally destroyed.





    The Vrod is slightly faster:



    But yeah, you'd probably get the M109 motor for a lot less plus being a Suzuki it'd most likely be bulletproof. I think the M109's are a fair bit heavier than a Vrod too so the engines might offer similar performance. I've never ridden a Vrod but if they're anything like older Harley's, the Suzuki gearbox will also be considerably nicer. Big bang Harley motor definitely sounds better though... M109's sound a little
    After considering a M109r before i purchased my Vrod, the gearbox on the suzuki was one of the things that turned me away-After reading the forums, they have had big issues for years, which has never been addressed. After spedning considerable time on the Vrod forums-I have never seen a gearbox mentioned...

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    Temporary Australian rorz's Avatar
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    Quote Originally Posted by Turbo 351 View Post
    After considering a M109r before i purchased my Vrod, the gearbox on the suzuki was one of the things that turned me away-After reading the forums, they have had big issues for years, which has never been addressed. After spedning considerable time on the Vrod forums-I have never seen a gearbox mentioned...
    Quite possible, I've never ridden either. The older Harley gearbags don't seem to have Japanese levels of refinement though, Vrod could be totally different.


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  28. #28
    Wanker
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    M109r is shit

    I had a brandnew k9 they are shit

    Clutch problems, not even nice to ride shitty engine, bit of power but nothing special, fuck all torque for an 1800cc and sound shit, not to mention just general average engineering and finish too.

    I have a roadliner now and shits all over the m109r Yamaha is much better than Suzuki based on my opinion and the half dozen bikes of each I've owned

    Also never seen a m109r run 11s unless modded and with a skinny cunt rider
    Last edited by MexicanBatman; 23-05-12 at 11:02 AM.

  29. #29
    Refined Crude lover Jay_G's Avatar
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    Shafty Vtwins would not work, having found a couple of sites with reversing gearboxes for cars it looks like i may be able to fit a straight 4 with the head to the back of the car, only drama is the amount of weight it is putting behind the axle.
    Like this

    yep

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