twin vs inline 4 - Sportbikes.net
General Sportbikes This area is for sport bike discussion in general. Topics that don't really belong anywhere else can go here. Questions can be answered and addressed to fully understand certain aspects of the sport. If your question is manufacturer specific please post it there.
Sponsored by: TCX Boots

User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 98 (permalink) Old 12-14-2012, 10:15 AM Thread Starter
Supersport Racer
 
CBROldMan's Avatar
 
Join Date: Jul 2012
Location: Aliso Viejo, Cailifornia
Age: 57
Posts: 131
Thanks: 68
Thanked 36 Times in 21 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
twin vs inline 4

( for street riding)

I know the simple answer is ride one and see for yourself, which I hope I get
the chance to do; but wondering how the acceration differences are at different speeds for the i4 vs a twin of almost the same cc.

Heard that the twins have more low end torque and the i4's have more high end torque, but how does this translate to actual riding?

The i4 will take off faster from 70 to 90+ where the twins will take off faster from the beginning, but not accelerate as fast at higher speeds?
CBROldMan is offline  
Sponsored Links
Advertisement
 
post #2 of 98 (permalink) Old 12-14-2012, 10:44 AM
Mexican Hard Shell Taco
 
Süsser Tod's Avatar
 
Join Date: Jun 2004
Location: Mexico, Mexico City
Age: 36
Posts: 5,849
Thanks: 167
Thanked 1,014 Times in 608 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 15 Post(s)
  
It depends on what kind of twin and what kind of I4 you're talking about, it's not really that simple. For example, my XJR1300 has more torque (80lb/ft) than my SV1000S (75lb/ft).

That being said, the twin will have a broader powerband and it will start at lower rpms. You don't need to shift as much to keep a twin within the powerband. As far as which one is faster, if both have similar HP, as long as you keep them in the powerband, it will come down to rider skills.

Go soothingly on the greasy mud, for therein lies the skid demon.
Süsser Tod is offline  
The Following 4 Users Say Thank You to Süsser Tod For This Useful Post:
CBROldMan (12-18-2012), PhilB (12-14-2012), Technomancer (12-15-2012), uncalcetindelana (12-14-2012)
post #3 of 98 (permalink) Old 12-14-2012, 10:58 AM
500 G.P. Champion
 
Tony216's Avatar
 
Join Date: Dec 2011
Location: I live in PA, and the voices live in my head.
Age: 42
Posts: 1,813
Thanks: 210
Thanked 428 Times in 307 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Why ask why, buy a triple.

IMO, the big difference is most twins feel slower than they are going and most inlines feel like they're going faster than they are.

Kissing the mirror is CENSORED
Tony216 is offline  
The Following 10 Users Say Thank You to Tony216 For This Useful Post:
ANORXIC'51 (12-14-2012), arcticamt6 (12-14-2012), CBROldMan (12-18-2012), Chauncey (12-14-2012), drummer92 (12-14-2012), rgbeard (12-23-2012), scythe08 (12-14-2012), Shamrock627 (12-14-2012), Süsser Tod (12-14-2012), uncalcetindelana (12-14-2012)
post #4 of 98 (permalink) Old 12-14-2012, 11:26 AM
500 G.P. Champion
 
ANORXIC'51's Avatar
 
Join Date: Aug 2009
Location: Twin Cities, MN
Age: 33
Posts: 2,285
Thanks: 747
Thanked 303 Times in 206 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
 
Quote:
Originally Posted by Tony216 View Post
Why ask why, buy a triple.

IMO, the big difference is most twins feel slower than they are going and most inlines feel like they're going faster than they are.
That's the best explanation I've heard for how I feel on the two. Not until I compared a few of my videos and saw how well the 848 moves out of corners compared to how I came out of corners on the RR. The twin lets you feel what its doing...almost like its pounding each horse into the ground via the rear wheel. Whereas on the I4 it felt more like "AAAAAAAAAAHHHHHHHHHH *shift* AAAAAAAAAAAAHHHHHHHHHHH.....IM FLYING SO FAST!!!"....(as the RC8R and 1098 absolutely annihilated me out of the hairpin and museum corner, lol). That last part is mostly due to me having no clue how to actually ride an I4.....which simply can be fixed by downshiftingone more gear than I think I need to.

Until I get more seat time on the CBR, I am a much better rider on a twin.

Never stop learning.
ANORXIC'51 is offline  
The Following User Says Thank You to ANORXIC'51 For This Useful Post:
CBROldMan (12-18-2012)
post #5 of 98 (permalink) Old 12-14-2012, 11:40 AM
A guy on a scruffy bike
 
PhilB's Avatar
 
Join Date: Mar 2007
Location: New Hampshire
Age: 52
Posts: 15,388
Thanks: 9,472
Thanked 3,765 Times in 1,830 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
  
I prefer a twin for the street, as it makes its best torque and power closer to the engine speeds you use when riding on the street. Fours make their best torque and power up top, so you sort of have to choose between torque and civility.

Of course if your four is big enough, it doesn't matter because you have plenty of power and torque even when you aren't near the engine's peak, but then you are dealing with a quite large engine and the big bike to carry it, and I find that non-ideal. If you don't mind a big bike, such as for touring, then a big four (or even better, a six) will give you more of everything, everywhere. If you want big usable torque in a smaller and more nimble bike, then a twin is the better answer.

PhilB

"If you want to be free, there is but one way; it is to guarantee an equally full measure of liberty to all your neighbors. There is no other." -- Carl Schurz, (1829-1906) German born U.S. Senator and Union Army general during the US Civil War

"A free man must be able to endure it when his fellow men act and live otherwise than he considers proper." -- Ludwig von Mises

'93 Ducati "Ferrari of Motorcycles" Monster 900; 229,000 miles so far
PhilB is offline  
The Following 3 Users Say Thank You to PhilB For This Useful Post:
CBROldMan (12-18-2012), kevin_stevens (12-14-2012), uncalcetindelana (12-14-2012)
post #6 of 98 (permalink) Old 12-14-2012, 11:43 AM
World 500 GP Champion
 
arcticamt6's Avatar
 
Join Date: Mar 2008
Location: Seattle, WA
Age: 27
Posts: 21,262
Thanks: 1,170
Thanked 2,420 Times in 1,352 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
 
Quote:
Originally Posted by Tony216 View Post
Why ask why, buy a triple.

IMO, the big difference is most twins feel slower than they are going and most inlines feel like they're going faster than they are.
Truth.

Though, the triples aren't quite dead in the middle of the two, they lean a little bit more toward the inline 4 feel. At least the 675 motor. I've only rode the 1050 motor once or twice.
arcticamt6 is offline  
The Following 2 Users Say Thank You to arcticamt6 For This Useful Post:
CBROldMan (12-18-2012), Chauncey (12-14-2012)
post #7 of 98 (permalink) Old 12-14-2012, 12:17 PM
SBN's bad luck charm
 
Chauncey's Avatar
 
Join Date: Aug 2004
Location: Tucson, AZ
Age: 36
Posts: 1,107
Thanks: 35
Thanked 8 Times in 7 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Quote:
Originally Posted by arcticamt6 View Post
Though, the triples aren't quite dead in the middle of the two, they lean a little bit more toward the inline 4 feel. At least the 675 motor. I've only rode the 1050 motor once or twice.
Ever rode the Rocket III? Talk about a wheelie machine!

"If ye love wealth better than liberty, the tranquility of servitude better than the animating contest of freedom, go home from us now. We seek not your counsel, nor your arms. Crouch down, now, and lick the hands which feed you. May your chains sit lightly upon you, and may Posterity forget that ye were our countrymen!" - Samuel Adams, Founder, brewer, and patriot.
Chauncey is offline  
post #8 of 98 (permalink) Old 12-14-2012, 12:39 PM
World 500 GP Champion
 
arcticamt6's Avatar
 
Join Date: Mar 2008
Location: Seattle, WA
Age: 27
Posts: 21,262
Thanks: 1,170
Thanked 2,420 Times in 1,352 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
 
No, I tried to but they didn't have a demo for me to take. I am extremely interested in trying out a Tiger 800xc though, as I may want to buy one in a few years.
arcticamt6 is offline  
post #9 of 98 (permalink) Old 12-14-2012, 01:34 PM
Supersport Racer
 
tandersn9's Avatar
 
Join Date: Sep 2010
Location: Maine
Age: 24
Posts: 151
Thanks: 17
Thanked 18 Times in 14 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
I'd say the only i4 I've ridden that has the same grunt an my TL would be the hayabusa, but once you get up to 120 forget about it. But how often do you need to go that fast on the street.

A bike that can quickly get to 100 or 110 on the street is practical enough and I think a 1000cc twin fits the bill nicely.

Only Twins
tandersn9 is offline  
The Following User Says Thank You to tandersn9 For This Useful Post:
CBROldMan (12-18-2012)
post #10 of 98 (permalink) Old 12-14-2012, 01:43 PM
World 500 GP Racer
 
f2benny's Avatar
 
Join Date: Jun 2004
Location: Massachusetts
Age: 50
Posts: 2,674
Thanks: 53
Thanked 86 Times in 50 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
I had an SV1000 briefly but it left me flat.. I was used to the whack of hp that a inline 4 gave and although there was plenty of power. the way I was used to riding it seemed boring to me. I went to the FZ1 and loved riding again.

Ain't nobody got time for that!
f2benny is offline  
The Following User Says Thank You to f2benny For This Useful Post:
CBROldMan (12-18-2012)
post #11 of 98 (permalink) Old 12-14-2012, 02:13 PM
500 G.P. Champion
 
Tony216's Avatar
 
Join Date: Dec 2011
Location: I live in PA, and the voices live in my head.
Age: 42
Posts: 1,813
Thanks: 210
Thanked 428 Times in 307 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Quote:
Originally Posted by arcticamt6 View Post
Truth.

Though, the triples aren't quite dead in the middle of the two, they lean a little bit more toward the inline 4 feel. At least the 675 motor. I've only rode the 1050 motor once or twice.
I agree, the 1050 makes power more like my 01 GSXR1000 did than my Ducati MS4R did.

Quote:
Originally Posted by arcticamt6 View Post
No, I tried to but they didn't have a demo for me to take. I am extremely interested in trying out a Tiger 800xc though, as I may want to buy one in a few years.
Me TOO!!!! That bike really calls to me (probably because I'm about to become Formula 40-legal).

Kissing the mirror is CENSORED
Tony216 is offline  
post #12 of 98 (permalink) Old 12-14-2012, 03:44 PM
500 GP Racer
 
uncalcetindelana's Avatar
 
Join Date: Aug 2010
Location: Punta Arenas, Chile
Age: 28
Posts: 869
Thanks: 797
Thanked 258 Times in 155 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
My personal opinion and experience, perhaps some can relate to this:

My background is dirt bikes, so monocylinders. I am so used to the mono powerband (in general, not all are the same), that everytime I ride a four cylinder bike I have a hard time feeling comfortable with the powerband, because I'm only doing 8000k RPM and the bike is already vibrating a lot and making the sound that in my head corresponds to "SHIFT NOW!!!". In all the times I've ridden my father's BMW S1000RR, only once, on a very long straight, did I even go over 10k RPM. And yes, I was going fast, but slower than I've ridden my Ducati and I felt I was going to die/blow up the engine.

I just can't relate to the sound when riding, even though I like it from a 3rd person perspective.

Twins, on the other hand, even "peaky" ones like the 916, feel very natural to me. Even hitting the limiter, I feel at home with what the engine's doing. It feels natural.

Tony's description to me is perfect, and personally, I like the thrill of riding, but I prefer the "in control" feeling of the twin's powerband/engine sound/character.
uncalcetindelana is offline  
The Following User Says Thank You to uncalcetindelana For This Useful Post:
CBROldMan (12-18-2012)
post #13 of 98 (permalink) Old 12-14-2012, 06:03 PM
Superbike Champion
 
Join Date: Dec 2010
Location: Canada
Posts: 357
Thanks: 13
Thanked 51 Times in 42 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
IMO whether twin, triple, or 4 cylinder it depends on the bore/stroke ratio and the cam lift/duration profile. The new Ducati Panigale v-twin for instance is capable of 195 hp but has lost the low end grunt of earlier models. A 4 cylinder can be tuned for lots of low end power but the high-end rush will be lost. My Triumph 675 STR 3 cylinder will do a top gear roll-on from 40-60mph in 3.3 sec according to a road test I have read (and it feels like it too) and still quickly screams to the 13,500 rpm redline. It all depends on how the manufacturer designs/tunes the engine for it's intended purpose.
Wayne's Striple is offline  
The Following User Says Thank You to Wayne's Striple For This Useful Post:
CBROldMan (12-18-2012)
post #14 of 98 (permalink) Old 12-14-2012, 06:11 PM
Mediocre Strafer
 
Join Date: Aug 2006
Location: San Diego
Posts: 9,148
Thanks: 677
Thanked 2,176 Times in 1,004 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
  
Quote:
Originally Posted by Wayne's Striple View Post
IMO whether twin, triple, or 4 cylinder it depends on the bore/stroke ratio and the cam lift/duration profile. The new Ducati Panigale v-twin for instance is capable of 195 hp but has lost the low end grunt of earlier models. A 4 cylinder can be tuned for lots of low end power but the high-end rush will be lost. My Triumph 675 STR 3 cylinder will do a top gear roll-on from 40-60mph in 3.3 sec according to a road test I have read (and it feels like it too) and still quickly screams to the 13,500 rpm redline. It all depends on how the manufacturer designs/tunes the engine for it's intended purpose.
That's not entirely true. Torque comes from specific firing instances, and for the same displacement, those bangs are simply bigger and more powerful the fewer cylinders there are. You can design *around* the basic characteristics, but they are still there and still affect the final design of the engine. Nobody is going to confuse a Panigale with an S1000RR.

KeS
kevin_stevens is offline  
The Following 2 Users Say Thank You to kevin_stevens For This Useful Post:
CBROldMan (12-18-2012), PhilB (12-16-2012)
post #15 of 98 (permalink) Old 12-14-2012, 06:15 PM
500 G.P. Champion
 
Sequentialshift's Avatar
 
Join Date: Apr 2011
Location: London
Posts: 2,286
Thanks: 74
Thanked 499 Times in 313 Posts
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
 
Quote:
Originally Posted by uncalcetindelana View Post
My personal opinion and experience, perhaps some can relate to this:

My background is dirt bikes, so monocylinders. I am so used to the mono powerband (in general, not all are the same), that everytime I ride a four cylinder bike I have a hard time feeling comfortable with the powerband, because I'm only doing 8000k RPM and the bike is already vibrating a lot and making the sound that in my head corresponds to "SHIFT NOW!!!". In all the times I've ridden my father's BMW S1000RR, only once, on a very long straight, did I even go over 10k RPM. And yes, I was going fast, but slower than I've ridden my Ducati and I felt I was going to die/blow up the engine.

I just can't relate to the sound when riding, even though I like it from a 3rd person perspective.

Twins, on the other hand, even "peaky" ones like the 916, feel very natural to me. Even hitting the limiter, I feel at home with what the engine's doing. It feels natural.

Tony's description to me is perfect, and personally, I like the thrill of riding, but I prefer the "in control" feeling of the twin's powerband/engine sound/character.

I was also brought up on a diet of crossers and so for the street prefer a twin as I like the instant snap of power from the moment you move rather than the build up of revs on a 4 .
Sequentialshift is offline  
The Following 2 Users Say Thank You to Sequentialshift For This Useful Post:
CBROldMan (12-18-2012), PhilB (12-16-2012)
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Sportbikes.net forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
who went from inline to v4 or twin philhousley General Sportbikes 30 05-31-2003 11:32 PM
Twin or Inline outoforder General Sportbikes 17 07-17-2002 10:54 AM
Inline 4 vs. V-twin BikerJonTN General Sportbikes 12 10-29-2001 09:15 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome