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View Poll Results: which do you prefer?
Vance & Hines 142 48.30%
Screamin' Eagle Slash Cuts 55 18.71%
Get a 2-1 already... 85 28.91%
Who care's about HP, Get some LOUD Drags.. 19 6.46%
Multiple Choice Poll. Voters: 294. You may not vote on this poll

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exhaust, v&h, vance and hines

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  #1  
Old 5th June 2008
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Default Dyno Run, V&H straight shots vs. Screamin' Eagles

I posted this in the sticky, but I wanted to get some feedback as well as provide some information between the pipes.


Vance & Hines Straight Shots (Baffled with a lollipop)


Screamin' Eagle Slash Cut with Moddified Baffles (Holes cut out in baffles)


Screamin Eagle 1200 Heads 61cc 10° dome
.010 over 10° dome pistons
Screamin' Eagle 1200 Ignition.
Screamin' Eagle Air Box (original) with K&N filter
Stock Carb
Stock Cam
Stock Wires
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Old 5th June 2008
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I not that impressed with the bottom end below 3300 rpm. With stock cams and that high of compression it seems like it should be at least 5 hp more? My experience with SE slip ons was about the same. I lost bottom end too.
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Old 5th June 2008
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Thx for the help, jackass
 
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I must say I like the torque of the V & H. But will a difference of 1-3 hp or ft/lbs really be that significant? I'd be making aesthetic decisions at this point, personally. Between those two, I like the look of the slash cuts over the straight shots. (You were wanted opinions like this, yes?)
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Quote:
Originally Posted by wandrur View Post
I must say I like the torque of the V & H. But will a difference of 1-3 hp or ft/lbs really be that significant? I'd be making aesthetic decisions at this point, personally. Between those two, I like the look of the slash cuts over the straight shots. (You were wanted opinions like this, yes?)

In a side by side roll on 3 hp looks huge.

From the choices allowed in this poll I vote for V&H because of looks, and the fact that they work pretty good. I don't like 2:1, I guess you all know that by now. Anyone that says HP doesn't matter is lying to themselves.
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Looks like you're runnin' just a bit lean. I wonder what would happen to those numbers if you shim the needle up one notch. I bet they'd improve a horse or 3...and improve the torque number...
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Quote:
Originally Posted by Hot Rod Sporty View Post
Looks like you're runnin' just a bit lean. I wonder what would happen to those numbers if you shim the needle up one notch. I bet they'd improve a horse or 3...and improve the torque number...
The AFR on the Graphs shows RICH, not Lean.
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Quote:
Originally Posted by Lenster View Post
The AFR on the Graphs shows RICH, not Lean.


You're right. My bad....
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the bike was set a little rich, so that when I got down to sea level, it'll be right on the money.
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Quote:
Originally Posted by biknut View Post
In a side by side roll on 3 hp looks huge.

From the choices allowed in this poll I vote for V&H because of looks, and the fact that they work pretty good. I don't like 2:1, I guess you all know that by now. Anyone that says HP doesn't matter is lying to themselves.
I'm not worried about a 3 hp at the MAX of the scale. when I'll roll it on, it'll be just about the same. with a little more torque..

Torque gets you going,
HP keeps you going.
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Quote:
Originally Posted by ReddTigger View Post
I'm not worried about a 3 hp at the MAX of the scale. when I'll roll it on, it'll be just about the same. with a little more torque..

Torque gets you going,
HP keeps you going.
A lot of roll on's start at about 50-60 mph. I'm just saying it looks a little weak down there for stock cams and high compression. Maybe about 5 HP.
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