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Fat bob stage four numbers

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Old Apr 27, 2011 | 04:27 PM
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Default Fat bob stage four numbers

I had a 103 stage four installed on a 2009 Fat Bob. I'm pulling 113.26 hp and 104.63 torque. I'm running Vance and Hines BR 2 into 1, SE Heavy Breather, tuner . I just spoke with a guy who had a 103 stage four installed on his 2008 Night Train at the same dealer. He is pulling 117hp and 124 lbs torguqe with Rhinehart 2 into 2 cross back, SE Heavy Breather. Are my numbers low, or are his unusually high?? Max torque numbers are at 4,000 RPM. It'still a hell of a lot more fun to ride than when it was stock...just curious.
 
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Old Apr 27, 2011 | 06:08 PM
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Sounds like it was just bolted up and not tweaked............I know you can get 105hp/105torque out of a 96cu.in. with the right cams and head work along with a 2into1 exhaust if its tweaked.
I have seen it done and right now am waiting on my parts to arrive so I can do the same to my motor.
 
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Old Apr 27, 2011 | 07:30 PM
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Excuse the ignorance...what do ya mean "tweaked"
 
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Old Apr 27, 2011 | 08:26 PM
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Dialed in to get the most out of the parts (i.e. decking the cylinders for equal piston to cylinder deck height, shaved heads for most compression, cc'd, ported and polished), instead of just out of the package and bolted on. Cams dialed in to achieve the utmost out of them. Having the AFR adjusted to produce constant power flow.
It's about blueprinting the new parts that go into giving you the utmost performance possible without overdoing it.
 

Last edited by SteveO-ll; Apr 27, 2011 at 11:37 PM.
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Old Apr 27, 2011 | 10:19 PM
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Pardon my ignorance, but what mods specifically go into making the motor Stage 4? Porting, polishing, cams???
 
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Old Apr 27, 2011 | 11:32 PM
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SCREAMIN ’ EAGLEŽ PRO STAGE IV KIT –
103 CUBIC INCH es

Here’s a 103 cubic inch racing kit that puts it all together for
you. If your looking to build a fast, track-ready, 103 kit and
want to buy all the components you need to maximize your
results, here’s the kit! T his eliminates the guess work on what
components you should use and what works well together.
We’ve put all the components together including SE performance
heads that provide a great performance upgrade
for a 103ci at a very attractive price. Kit includes our high-performance
/ high-flow Screamin’ EagleŽ Performance
110+ Heads which include large intake valves at 2.120" diameter
(our biggest ever), high-compression forged aluminum
10.5:1 pistons matched to the 110+ heads, an SE260 cam to
open the valves appropriately, allowing the right balance of
air and fuel to enter, Perfect-Fit Pushrods to accommodate
the higher cam lift, a 58mm EFI throttle body to get that air
flow to the heads, big 3-7/8" diameter highlighted cylinders,
then topping off this kit off with a “must have” Super Tuner
to provide the right tuning capabilities. Kit includes gaskets.
For race application only.
27516-08B Black. $2,399.95
Fits ’07-later DynaŽ, ’07-later SoftailŽ and ’07 Touring
models. Not compatible with cruise control.
 
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Old Apr 28, 2011 | 08:33 AM
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That's the kit that I have...with 260cam I'm pretty sure they shaved the heads...metal shavings were visible. I didn't think you had to port and polish the heads of a Screaming Eagle race kit. Guess I'll look into it. Anybody else out there have dyno numbers for a stage four 103 kit??
 
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