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General Category => General Discussion => Topic started by: Scout63 on December 31, 2022, 12:07:00 AM

Title: Best twin motor?
Post by: Scout63 on December 31, 2022, 12:07:00 AM
Flat, vertical or V?

I love the /5 motor for low CG but it sounds, well, bland.  The Commando sounds great but keeps breaking things off.  There is really nothing bad I can say about bevel Ducati twins.  Smoothness and great sound are a great combination.  I like The Harley sound but where I live it’s a veritable potato fest.  My vote goes to my old and sold V50II with Bubs. It just screamed at 40mph like a Ferrari doing the ton.
Title: Re: Best twin motor?
Post by: s1120 on December 31, 2022, 03:21:25 AM
Vtwin sounds the best to me. I agree with the thought on the HD's. Mostly becouse all the ones local that just have no or hogged out mufflers, and no follow up tuning to allow it to run after..  The Ducati's sound amazing, but not a huge fan of the maintenance involved. The Guzzi's just sound amazing. Nice lope at lower speeds, but growl like a V8 at speed.  All that and its really one of the easiest rides to keep running! 
Title: Re: Best twin motor?
Post by: Huzo on December 31, 2022, 04:34:15 AM
The early square case or round case Conti equipped Ducati desmo bevels…
Title: Re: Best twin motor?
Post by: PeteS on December 31, 2022, 06:32:51 AM
I have a Norton and used to have a Airhead but My 850 LeMans with Rennsports sounds like a small block Chevy when it winds up. Plus its bulletproof. No contest, its the Guzzi.

Pete
Title: Re: Best twin motor?
Post by: ital4me on December 31, 2022, 07:16:46 AM
I love the sound of my Guzzi. It has what I was told were racing pipes, can't say for sure. They were open megaphones with a reverse cone. I cut the reverse cone off, put in some Vance & Hines baffles and welded the cones back on. I was very lucky because it sounds amazing without being too noisy. I just sold an early desmo Ducati. It had contis on it and it had the sound that everyone loves. Never mind that the smooth ride and visceral feedback were the best of any bike I have owned.
Title: Re: Best twin motor?
Post by: mechanicsavant on December 31, 2022, 07:33:36 AM
So , far my favorite twin was the one in my R1200ra . An amazing piece of engineering IMHO . 1200cc, 2 balance shafts & damn near 7500 rpm w/a broad torque band & 100 HP. A few of the guys I ride with are well north of 100k trouble free miles , even original clutches ! Much better than the 1150 motor too ,
I’m quite happy with my current small blocks . The V7 MkII took a bit of patience to get sorted & at 25k Mi. It’s a hoot on a back road , it’s even been pressed into touring duty without complaints. The power plant in the V7/850 is my Goldilocks small block @ only about 10k Mi. It’s beginning to settle in nicely as is the gearbox . Looking forward to a troublefree future with both bikes
Title: Re: Best twin motor?
Post by: JJ on December 31, 2022, 07:42:27 AM
V-Twins - Guzzi - Ducati - Harley-Davidson... Pros & Cons for all three... :thumb:

Never owned a Ducati, but have ridden several.  However, I have thousands of miles on several models of the other two...all good bikes in their own right.  Now, just have a Guzzi and a Victory... :wink: :smiley:
Title: Re: Best twin motor?
Post by: Scout63 on December 31, 2022, 07:48:25 AM
As always Huzo nailed it with the bevel/Contis. The only downside (upside?) is watching pedestrians dramatically stick their fingers in their ears.
Title: Re: Best twin motor?
Post by: LowRyter on December 31, 2022, 08:14:10 AM
interesting that many of the verticals (parallel) twins are trying to emulate 90 & 70 degree VTwins (and some triples and 4's with cross plane cranks)
Title: Re: Best twin motor?
Post by: guido guzzi on December 31, 2022, 08:30:05 AM
Absolutely in agreement on the 90 degree V Twin but... Having owned Guzzi, '96 Ducati 900 SS and '02 (last year with carburetors) Suzuki SV650 my current all time fave is the SV. It revs so quickly and sounds soooo wonderfully nasty with a M4 exhuast; it's a perfect example of the 'second mover advantage' by using Ducati's V twin design and taking it to the next level with DOHC and liquid cooling.  :thumb:
Title: Re: Best twin motor?
Post by: Bpreynolds2 on December 31, 2022, 09:11:46 AM
You left off the most popular one going these days, parallel twin.   :laugh:
Title: Re: Best twin motor?
Post by: DesertPilot on December 31, 2022, 09:22:35 AM
Of all the twins I've had, Ducati seems the most enthusiastic.  It has a, "What's up ahead!  What's around that turn!  Whatcha got for me today!" kind of glee that's difficult to resist.  Guzzi's the coolest, Suzuki's 650 v-twin is the one I'd want for the Zombie apocalypse, Harleys are what I'd want the zombies to be riding, to give me a bit of an edge, and all the others were just... twins.
Title: Re: Best twin motor?
Post by: JJ on December 31, 2022, 09:24:06 AM
You left off the most popular one going these days, parallel twin.   :laugh:

YES!  The Triumph 900 / 1200...the Kawasaki W800...the Royal Enfield 650's...the list goes on! :thumb: :cool: :boozing:
Title: Re: Best twin motor?
Post by: Moparnut72 on December 31, 2022, 11:39:06 AM
I have a 1200 Triumph with a 270* motor. It is quite smooth. I wasn't even considering a Triumph when I was looking for a new bike. I remember the Triumphs from the late '60's that were just awful from vibration, miserable to work on and reliability issues. I only have 5,000 miles on it so far but I am quite pleased with it. The V100 piques my interest though.
I also had one of the first /5's and I believe it was the best twin in it's day. Reasonably fast and very smooth. If those motors were knife and fork like Harleys they would have extremely smooth.
kk
Title: Re: Best twin motor?
Post by: Chuck in Indiana on December 31, 2022, 11:48:59 AM
I've had (ahem) 17 Guzzis  :shocked: and the sweetest engine was the V50 Monza. To me, there is a "different" character in sound between the big blocks, small blocks, 2V and 4Vs. The Aero engine is different from the others, too.
Over the years, I've had a couple of Conti powered  :smiley: Ducks, also.
Tough call.
Title: Re: Best twin motor?
Post by: Gusable on December 31, 2022, 01:35:42 PM
Ducati 1000/1100 , oilhead 1100 bmw or guzzi 1100!
Title: Re: Best twin motor?
Post by: Brand X on December 31, 2022, 01:55:16 PM
VTR 1000 Honda.  :evil:
Title: Re: Best twin motor?
Post by: Tkelly on December 31, 2022, 02:05:14 PM
I don’t claim any bike is the best but the motor on the Stelvio is hard to beat in terms of powere and reliability.
Title: Re: Best twin motor?
Post by: Ncdan on December 31, 2022, 03:16:00 PM
The MG 1100 motors with the H Pipe and the mufflers opened up a bit, sounds really great when pushing it through the mountain curves and straights.
 
Title: Re: Best twin motor?
Post by: antmanbee on December 31, 2022, 03:53:54 PM
For me the best twins were my 70's bevel Ducati's with Conti's and somewhat more currently at a close second is my V11 Sport with M4's.
Probably because it reminds me of my Ducati's from long ago.
Title: Re: Best twin motor?
Post by: huub on January 01, 2023, 04:29:50 AM
I still own a ducati bevel twin,
I like the sound of my 900SS , but apart from that the engine isnt that special.
used to be in the seventies, but extremely dated by now.
another case of dont meet your hero's.
anyway with a non existing part situation and pretty fragile engines they are museum pieces now.

for me the 850 le mans is about as good a twin i can think of, especially if other aspects of ownership are considered.
 may be with a buell as a close second.
or if you like small bikes , the morini 350
a well setup 350 sport on a winding mountain road is a amazing ride, you need to go up and down the gears to keep the little engine screaming near its redline.
but then it delivers like a tuned two stroke.
Title: Re: Best twin motor?
Post by: Huzo on January 01, 2023, 06:00:32 AM
I have a 1200 Triumph with a 270* motor. It is quite smooth. I wasn't even considering a Triumph when I was looking for a new bike. I remember the Triumphs from the late '60's that were just awful from vibration, miserable to work on and reliability issues. I only have 5,000 miles on it so far but I am quite pleased with it. The V100 piques my interest though.
I also had one of the first /5's and I believe it was the best twin in it's day. Reasonably fast and very smooth. If those motors were knife and fork like Harleys they would have extremely smooth.
kk
What are you referring to when you say “one of the first /5’s”...BMW ?
If they were knife and fork, they would have been an abomination. Both pistons would be @ TDC 180 deg apart and a severe rocking couple would have been horrible.
Title: Re: Best twin motor?
Post by: Moparnut72 on January 01, 2023, 07:28:29 AM
You are right, my brain was in sleep mode.   :sad:. I had the very first R75/5 to come to Denver. I had to wait six months to get it. Sound familiar, V100?
kk
Title: Re: Best twin motor?
Post by: Scout63 on January 01, 2023, 07:39:17 AM
I still own a ducati bevel twin,
I like the sound of my 900SS , but apart from that the engine isnt that special.
used to be in the seventies, but extremely dated by now.
another case of dont meet your hero's.
anyway with a non existing part situation and pretty fragile engines they are museum pieces now.

for me the 850 le mans is about as good a twin i can think of, especially if other aspects of ownership are considered.
 may be with a buell as a close second.
or if you like small bikes , the morini 350
a well setup 350 sport on a winding mountain road is a amazing ride, you need to go up and down the gears to keep the little engine screaming near its redline.
but then it delivers like a tuned two stroke.

I think the bevel 900SS holds up very well to scrutiny.  The engine is a marvel.  It’s downside is how completely awkward and uncomfortable it is to ride at sane speeds, which sort of adds to the mystique.  I pickled mine and put it in my office so that I can waste time and look at it. The 32 carbed 860 has less power but sounds just as great, is way more comfortable and I think still looks nice.  Since they got such a bad rap when they came out they are still very affordable.  I think that square case 860s are a vintage rider no-brainer. 

(https://i.ibb.co/MhftZht/5975-EAE5-CEFF-442-A-88-F3-D9-D767-B84894.jpg) (https://ibb.co/MhftZht)


(https://i.ibb.co/hYMwYYP/70371-FD4-0216-4458-AE3-C-02-CF6-A7081-F4.jpg) (https://ibb.co/hYMwYYP)
Title: Re: Best twin motor?
Post by: LowRyter on January 01, 2023, 08:57:06 AM
so far as sound goes, my green V11 Sport with crossover and pipes has about everything covered.  It's certainly the best looking and best sounding bike on the planet.
Title: Re: Best twin motor?
Post by: tommy2cyl on January 01, 2023, 09:42:48 AM
My immediate thought for my response to this thread was my 1991 Ducati 900 SS.  Motor was sublime and made a glorious sound with the Jimmy Adamo cans.  But I was also completely seduced by the machine in total so it is hard to separate out just the motor.  The more I thought about just the motor, the best twin I have ever owned was my 2002 VStrom 1000.  You really couldn't ask for more.  I rode it most of the time shifting around 5-6 K point which was always more than adequate to get going and have fun.  But on those days when I wanted to wick it up into the higher RPM's toward redline, I would remember what a glorious kick ass motor this was and the super bike heritage from whence it came.  I know I mentioned in the past that some guy on Stromtrooper had one with well over 300,000 miles and the motor had never been apart.  So yeah, fantastic fun and bullet proof has to merit the best on my list.
Title: Re: Best twin motor?
Post by: SIR REAL ED on January 01, 2023, 09:43:28 AM
Sounds like a consensus is forming around 90 degree v-twins and parallel twins with a 270/90 degree crankshaft designed to mimic the 90 degree v-twins in terms of both sound and vibration.
Title: Re: Best twin motor?
Post by: SIR REAL ED on January 01, 2023, 09:47:17 AM
My immediate thought for my response to this thread was my 1991 Ducati 900 SS.  Motor was sublime and made a glorious sound with the Jimmy Adamo cans.  But I was also completely seduced by the machine in total so it is hard to separate out just the motor.  The more I thought about just the motor, the best twin I have ever owned was my 2002 VStrom 1000.  You really couldn't ask for more.  I rode it most of the time shifting around 5-6 K point which was always more than adequate to get going and have fun.  But on those days when I wanted to wick it up into the higher RPM's toward redline, I would remember what a glorious kick ass motor this was and the super bike heritage from whence it came.  I know I mentioned in the past that some guy on Stromtrooper had one with well over 300,000 miles and the motor had never been apart.  So yeah, fantastic fun and bullet proof has to merit the best on my list.

I echo your appreciation of the Suzuki SV/V-Strom motors.  I've owned 650's in both configurations. Every time I got on the SV, I was impressed all over again.

Test rode a friend's V-Strom 1000 and really enjoyed that low end torque mated to higher rpm get up and go!
Title: Re: Best twin motor?
Post by: 80CX100 on January 01, 2023, 09:49:36 AM
I've owned a bunch of different motorcycles,but because I grew up riding UJMs,it was only later in life when I treated myself to my first guzzi CX100 that I owned a twin.

I did own a larger version of the SV650 mentioned above with my 1st gen DL1000 VStrom. That engine was a beast,had a glorious sound with Staintunes,but the love affair ended any time I had to work on it & the first time I adjusted the valves.

Imho,guzzi V engines nail the sweet spot for me with simple basic design & engineering. I find the simple maintenance requirements suit my luddite skill level. I don't have a decent dealer or mechanic near by;knock on wood,I don't need one

The bikes I own are all the basic same 2V engine,I find the engine's character works well in real world riding. What I continue to be amazed with,is that with minor changes in the oem tuning design;ie mapping,fueling,cams,valve size etc how different each motor can feel.

In my CalVin,I know it's frowned upon,but I can lug it down to 2K rpm & if I'm mindful of the situation,it doesn't complain. It feels like it's obviously been tuned to compete with HD.

I don't have a lot of miles on my V11Lemans,but I've read that the engine is the last of the hot rod guzzis;I have to agree.

I don't know if the cam is different,I know the valves are larger,definitely different oem tune & mapping. With the Mistral Carbon Ovals sounds amazing,my biggest challenge will be holding it in check so I don't end up losing my license due to speeding tickets.

Like my DL1000 it's very comfortable cruising at high speeds,loping along well above 80 mph;the difference is, while the DL1000 had no road feel,like riding on pillows,the V11 Lemans feels very planted on the road and it's scary how confidence inspiring it feels at high speeds.
Title: Re: Best twin motor?
Post by: Bpreynolds2 on January 01, 2023, 10:40:46 AM
I’ve had about 38 or 39 bikes in the last 19 years, and about 13 or 14 different Geese.  I’ve owned singles, Vtwins, Parallel twins, Ducati L twins, triples, and fours.  Loved them all but to this day there is still something about a V twin that checks the most boxes for me.  It would be hard to pick a favorite Guzzi engine; they are all fantastic and special, so much application, so much charm.  I “seem” to always come back to the 1100 but if you asked me I might tip the hat to the Roamer engine, maybe my fav.  I will say, however, that probably my personal twin favorite engines are likely the Vtwins from KTM, the 950, the 990, and the 1290.  The latter is just too much in most ways but I will acknowledge that it may very well be the greatest motorcycle engine I’ve ever experienced. 
Title: Re: Best twin motor?
Post by: DC950 on January 01, 2023, 02:37:14 PM
the Rotax 60 degree twin that Aprilia used from 1998 till 2010 is an absolutely fantastic engine. Wonderfully designed and manufactured.  There are plenty out there with 200,000 mile on them.  100k with nothing but oil changes is common.  This is a performance engine, not a ditch pump but it still lasts.
Title: Re: Best twin motor?
Post by: Huzo on January 01, 2023, 02:44:55 PM
Can anyone tell me what “best” means.
#1
The one that makes you happiest ? My 2VPC Norge
#2
The most kW/litre ? Model aeroplane engine
#2
The most precisely manufactured ? Model aeroplane engine
#3
The cheapest ? Chinese garbage in pit bike
#4
The simplest ? Farmyard oil engine
#5
The most reliable ? Honda stationary engine

Blah…blah..etc.
Title: Re: Best twin motor?
Post by: dte8dom on January 01, 2023, 06:58:49 PM
I’ve had some really good v-twins over the years and while I love that guzzi feel and character. The Harley’s are the easiest to live with. Stock twin cams are reliable like an anvil. I’ve had some mildly built evos that will outlast most marriages. Parts available every where and at least in my experience, extremely easy to keep running. But If you really try to hod rod them the shortcomings quickly become apparent. Like Huzo said in an earlier post, what do you mean by best? Feel? Reliability? Character?
Title: Re: Best twin motor?
Post by: twowheeladdict on January 01, 2023, 08:57:25 PM
The Yamaha 700 cc with 270 degree crank.  Comes in the MT-07, Tracer 7, Tenere 700, and R7. 
Title: Re: Best twin motor?
Post by: Clifton on January 03, 2023, 11:33:17 PM
The Yamaha 700 cc with 270 degree crank.  Comes in the MT-07, Tracer 7, Tenere 700, and R7.

Yamaha's CP2 is a nice motor and probably under stressed at 70hp. It has a nice torque curve (more like a line), smooth, easy to work on, sounds nice, and 26K valve check interval.
Title: Re: Best twin motor?
Post by: chuck peterson on January 04, 2023, 05:17:24 AM
A Reno Leoni tuned Ducati Superbike with 14:1 compression, straight pipes at full throttle exiting turn 10 onto the grand stand straight at Loudon ……of course with Jimmy Adamo at the controls. All else is imitation… :bow:



(https://i.ibb.co/kD40g9z/7-A113-C32-8-CEB-4151-B62-C-37-A558-D52848.jpg) (https://ibb.co/kD40g9z)
Title: Re: Best twin motor?
Post by: twodogs on January 04, 2023, 07:07:53 AM
As far as stock sound on a street bike I would have to go with the Laverda 750 twin  :bike-037:
Title: Re: Best twin motor?
Post by: SIR REAL ED on January 08, 2023, 08:47:18 AM
As far as stock sound on a street bike I would have to go with the Laverda 750 twin  :bike-037:

I don't think I ever heard a Laverda 750. 

I have fond memories from childhood of the sound of a neighbor's Norton 750....

Doug Polen's Ducati sounded great at Charlotte Motor Speedway in 1992 also..... the lone twin in a sea of 4 cylinders....
Title: Re: Best twin motor?
Post by: Juan1 on January 10, 2023, 01:30:37 AM
Depends on the category.  For a touring bike I like the big, lazy 2V 1200cc Norge motor.  For a sporty street bike I like the SV650's twin. 
Title: Re: Best twin motor?
Post by: Huzo on January 10, 2023, 04:07:57 AM
Depends on the category.  For a touring bike I like the big, lazy 2V 1200cc Norge motor.  For a sporty street bike I like the SV650's twin.
Jeez that’s good news.
I’ve got one of each…! :thumb:
Title: Re: Best twin motor?
Post by: ScepticalScotty on January 10, 2023, 06:08:14 AM
I actually think the SV650 motor is an absolute classic and the original SV one of the finest bikes ever made! But being a Guzzi person I can't go past my Breva750 as being the pack mule, or more accurately the burro of the motorcycle world. Great at real road speeds for one person, full of character, reliable ...
Title: Re: Best twin motor?
Post by: SIR REAL ED on January 10, 2023, 07:15:10 PM
I actually think the SV650 motor is an absolute classic and the original SV one of the finest bikes ever made! But being a Guzzi person I can't go past my Breva750 as being the pack mule, or more accurately the burro of the motorcycle world. Great at real road speeds for one person, full of character, reliable ...

Agreed.  When the SV650 come out in 1999, my first thought was "Modern Norton Commando!"

First generation still has the best looking motorcycle frame ever mass produced IMO.

I owned three, each time I got on one, even after owning over 45 bikes I thought "Wow!  This is a REALLY NICE bike!"

If you have never ridden one, you should beg, borrow, or steal a test ride on one.  But only if you have some additional garage space.

The only reason I sold mine was knee pain.  But after a hip replacement, there is probably no reason not to own one now.....
Title: Re: Best twin motor?
Post by: Scout63 on January 10, 2023, 09:18:43 PM
I have to ride an SV650. They’ve interested me since they first came out.
Title: Re: Best twin motor?
Post by: FarmallA on January 10, 2023, 09:47:37 PM
Several times last season, I had the chance to ride my riding buddy's wife's Suzuki Gladus, which has the SV650 motor.  What an engine!! 
I'm more attracted to the riding position of a SV650S, and I'd like to try one some time. But anything with that engine in it is gonna be a winner.

For now, I'm exploring Guzzis.  Must not get distracted...

FarmallA
Steve

Title: Re: Best twin motor?
Post by: twowheeladdict on January 11, 2023, 06:12:32 AM
Several times last season, I had the chance to ride my riding buddy's wife's Suzuki Gladus, which has the SV650 motor.  What an engine!! 
I'm more attracted to the riding position of a SV650S, and I'd like to try one some time. But anything with that engine in it is gonna be a winner.

For now, I'm exploring Guzzis.  Must not get distracted...

FarmallA
Steve

And the gladius got no love so can be had cheaper than older SVs.