Which engine would you build?
Option 1. FM107 w/ TW-777 cams, level B heads and Rinehart extreme true duals.
Option 2. FM107 w/ TW-555 cams and 2:1 exhaust (Jackpot or D&D). No head work.
Option 3. Stock 103 jugs & pistons, TW-777 cams, level B heads (set to 10.5:1 compression), 50mm intake, 30 tooth pulley and Rinehart extreme true duals.
This bike is set up as a solo bike, so 1 up 100% of the time.
Last edited by equandt; Sep 29, 2015 at 12:56 PM.
the other parts of the equation are cost- yet undefined
results: compare the dyno charts for these builds
and reliability- you'll have to define or project how reliability and service life will be affected.
Mike
I think any of the builds will be reliable and cost will be about the same...so for me it's really about which build (of the three) would be more fun.
As it sits the bike has a PC-V, SE heavy breather and Rinehart XTDs. It also has TW-222 cams but those are getting yanked.
#2 makes more sense if you get ported heads. So I'd say #2, with ported heads and 777s. Its not that much more money.
Performance builds and true duals are somewhat at odds with each other. You want the style points of duals, but the performance of a build with ported heads. They dont always mix.
After I spoke with Fuel Moto, they recommended against porting heads with true duals, at least for my riding style, which has a fair amount of long distance. I'm not racing my bike.
So I have true duals, a 107, stock heads. 116 TQ, but right where I want it.
I would have also gone with a 2-1 and ported heads, but I didnt want to spend additional the money at the time. At some point in the future, I probably will tho.
Option 1. FM107 w/ TW-777 cams, level B heads and Rinehart extreme true duals.
Option 2. FM107 w/ TW-555 cams and 2:1 exhaust (Jackpot or D&D). No head work.
Option 3. Stock 103 jugs & pistons, TW-777 cams, level B heads (set to 10.5:1 compression), 50mm intake, 30 tooth pulley and Rinehart extreme true duals.
This bike is set up as a solo bike, so 1 up 100% of the time.
I would go with
SCREAMIN EAGLEŽ PRO 110CI STAGE V
TIRE SHREDDER KIT
$2,317
Kit includes the following Screamin Eagle components:
Big Bore 4.0" Bolt-On Cylinders
CNC-Ported Factory Cylinder Heads
Forged 10.5:1 Compression Pistons
SST Piston Rings
SE-259 cams
Perfect-Fit Pushrods
High-Capacity Roller Tappets
58mm Throttle Body
High Flow Fuel Injectors
Heavy Duty Clutch Spring
Top End Gasket Kit
Cam Cover Gasket
Super Tuner EFI Tuner
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I would go with
SCREAMIN EAGLEŽ PRO 110CI STAGE V
TIRE SHREDDER KIT
$2,317
Kit includes the following Screamin Eagle components:
Big Bore 4.0" Bolt-On Cylinders
CNC-Ported Factory Cylinder Heads
Forged 10.5:1 Compression Pistons
SST Piston Rings
SE-259 cams
Perfect-Fit Pushrods
High-Capacity Roller Tappets
58mm Throttle Body
High Flow Fuel Injectors
Heavy Duty Clutch Spring
Top End Gasket Kit
Cam Cover Gasket
Super Tuner EFI Tuner
all the above is unproven^^^^^
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