wtf is 1390?
Outstanding HDF Member
Joined: Sep 2006
Posts: 2,334
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RE: wtf is 1390?
I'm getting 1447.916622 CC or 88 CI ( actually 88.35729338 CI )
"95" kit = 94.34595438CI or 1546.053193CC
I wouldhave to tell him its so big they have to express it in inches just like something elseI own .
"95" kit = 94.34595438CI or 1546.053193CC
I wouldhave to tell him its so big they have to express it in inches just like something elseI own .
Outstanding HDF Member
Joined: Mar 2005
Posts: 2,007
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From: Vancouver, B.C.
RE: wtf is 1390?
ORIGINAL: anubisss
1450 usually shuts those little 1000cc guys up real quick...
1450 usually shuts those little 1000cc guys up real quick...
You don't wanna be goin' there very often.
CN
Road Warrior
Joined: Oct 2006
Posts: 1,446
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From:
RE: wtf is 1390?
Paulo,please note the stock air cleaner. Been there done that. Actually I don't think they went back to ci till the 80ci .
[IMG]local://upfiles/19761/6BDBE2B6A4EB4F379174E019EB8DF142.jpg[/IMG]
[IMG]local://upfiles/19761/6BDBE2B6A4EB4F379174E019EB8DF142.jpg[/IMG]
Outstanding HDF Member
Joined: Nov 2005
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From: Houston (Area)
RE: wtf is 1390?
Since we are on the subject. Can someone explaincc to me? If the 88" is 1450 and the 95" is1540 it seems thelarger the cc is the faster/larger the engine is.
Well why are the sports bike 600/750/900/1000/1300 all way way faster than our bikes? I never understood that.
Well why are the sports bike 600/750/900/1000/1300 all way way faster than our bikes? I never understood that.
Advanced
Joined: Jun 2005
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From:
RE: wtf is 1390?
Sportbikes are way faster because:
They're lighter - by a whole lot.
Their smaller engines produce more hp, and are usually 4 cylinders versus HD's 2.
Displacement means very little when comparing big v-twins like HD to the sportbike crowd.
They're lighter - by a whole lot.
Their smaller engines produce more hp, and are usually 4 cylinders versus HD's 2.
Displacement means very little when comparing big v-twins like HD to the sportbike crowd.
Road Warrior
Joined: Oct 2006
Posts: 1,446
Likes: 1
From:
RE: wtf is 1390?
ORIGINAL: Manish_Hawg
Since we are on the subject. Can someone explaincc to me? If the 88" is 1450 and the 95" is1540 it seems thelarger the cc is the faster/larger the engine is.
Well why are the sports bike 600/750/900/1000/1300 all way way faster than our bikes? I never understood that.
Since we are on the subject. Can someone explaincc to me? If the 88" is 1450 and the 95" is1540 it seems thelarger the cc is the faster/larger the engine is.
Well why are the sports bike 600/750/900/1000/1300 all way way faster than our bikes? I never understood that.
Will a stock import cruiser out run a stock H-D, usually, I'll still take the H-D. I've ran mine through the gears from 2nd thru 6th to over a hundred mph, and it got there plenty fast for me.
Road Master
Joined: Jan 2006
Posts: 1,192
Likes: 4
From: Columbus, OH
RE: wtf is 1390?
ORIGINAL: Manish_Hawg
Since we are on the subject. Can someone explaincc to me? If the 88" is 1450 and the 95" is1540 it seems thelarger the cc is the faster/larger the engine is.
Well why are the sports bike 600/750/900/1000/1300 all way way faster than our bikes? I never understood that.
Since we are on the subject. Can someone explaincc to me? If the 88" is 1450 and the 95" is1540 it seems thelarger the cc is the faster/larger the engine is.
Well why are the sports bike 600/750/900/1000/1300 all way way faster than our bikes? I never understood that.
Outstanding HDF Member
Joined: Sep 2006
Posts: 2,334
Likes: 0
RE: wtf is 1390?
Being oversquare ( stroke longer than cylinder diameter ) the harley can't rev as quickly and as high as say a 4 cylinder of the same displacement .
One of thereasons is the weight of the conecting rods , its a 4'"stroke on the 88's
Lots of mass reversing direction .
Piston speed ( feet per second ) limits the top RPM , there is a point where durability comes into play .
For the sake of discusion lets say the 4 cyl had the same bore diameter as the 88Harley . Then it would have a 2" stroke to equal the same displacement .
For the same RPM it would have half of the piston speed ( again feet per second ) as the Harley .
At 1 rpm each harley piston travels 8 " , with the 4 cyl each piston travels 4 " .
So in theoryits redline could be twice that of the harley .
SO WHAT? For the same displacement( in this example ) the4 cyl. has the ability to use twice the air/fuel as the harley .
One of thereasons is the weight of the conecting rods , its a 4'"stroke on the 88's
Lots of mass reversing direction .
Piston speed ( feet per second ) limits the top RPM , there is a point where durability comes into play .
For the sake of discusion lets say the 4 cyl had the same bore diameter as the 88Harley . Then it would have a 2" stroke to equal the same displacement .
For the same RPM it would have half of the piston speed ( again feet per second ) as the Harley .
At 1 rpm each harley piston travels 8 " , with the 4 cyl each piston travels 4 " .
So in theoryits redline could be twice that of the harley .
SO WHAT? For the same displacement( in this example ) the4 cyl. has the ability to use twice the air/fuel as the harley .
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May our Moderator Rest in Peace
Joined: Sep 2006
Posts: 11,386
Likes: 35
From: Rochester, NY
RE: wtf is 1390?
ORIGINAL: bobf
Sportbikes are way faster because:
They're lighter - by a whole lot.
Their smaller engines produce more hp, and are usually 4 cylinders versus HD's 2.
Displacement means very little when comparing big v-twins like HD to the sportbike crowd.
Sportbikes are way faster because:
They're lighter - by a whole lot.
Their smaller engines produce more hp, and are usually 4 cylinders versus HD's 2.
Displacement means very little when comparing big v-twins like HD to the sportbike crowd.
The down side is that they HAVE to wind them up to the moon to make the power they do. Where a big twin makes gobbs of torque down near what thye would consider ahigh idle speed.
Road Captain
Joined: Sep 2006
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From:
RE: wtf is 1390?
ORIGINAL: bobf
The down side is that they HAVE to wind them up to the moon to make the power they do. Where a big twin makes gobbs of torque down near what thye would consider a high idle speed.
The down side is that they HAVE to wind them up to the moon to make the power they do. Where a big twin makes gobbs of torque down near what thye would consider a high idle speed.
Now, somebody tell me why that little Vulcan800 V-twin could outrun my TC88? Its not even a sportbike! (It also didn't sound half bad with Vance&Hines.... maybe I should have bought one, my crash would have been alot cheaper!).