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113"

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Old Oct 5, 2015 | 09:03 AM
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Default 113"

After all the expense and frustration I tossed the HD dealer installed Stage IV engine kit and started over with a 113". The original 113" build included a Tman 662-1 cam set, Ron bench flowed the heads and decided the reliability vs numbers prompted incorporating the 635's. 635's are the oddest cams with their 243/270 duration.

S&S 4 5/8
SE 113"
S&S 635G
SE 58 w/ 5.3 (matched to HD's CNC)
RC heads
Aim
S&S duals

Preliminary dyno @ 125/130

The numbers are a little light but the response and tire spinning power down low is remarkable. We go back at 500 miles for the full tune and top numbers. I have just over 250 miles on the new motor. 4000 max RPM so far and really curious how much top a 243 duration 43 intake closing cam is going to make................okay just thinking out loud.

Any input from the resident Gurus?
 
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Old Oct 5, 2015 | 02:09 PM
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Is your cam the 635 HO , the g being gear driven?
 
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Old Oct 5, 2015 | 05:12 PM
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Interested... will be following!
 
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Old Oct 5, 2015 | 06:02 PM
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Originally Posted by cdonis
Is your cam the 635 HO , the g being gear driven?
Yes the 635HO "G" for gear drive. The power off idle is effortless and finally the bike is a joy to ride around town. I am still getting used to the power. I don't know what its like over 4000 RPM. 2500-4000 RPM is instant even when it hooks up.

No more Sleepybagger here :-)
 
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Old Oct 5, 2015 | 06:15 PM
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Interesting, Seems as if that cam will be all mid to high end.
 
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Old Oct 5, 2015 | 06:20 PM
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Doesn't an SE 113" 4.060" bore with 4 5/8" crank measure out to 120"?
 
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Old Oct 5, 2015 | 08:05 PM
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Originally Posted by qtrracer
Doesn't an SE 113" 4.060" bore with 4 5/8" crank measure out to 120"?
Yes it does. Which explains the numbers; 125/130 is on the strong side for a 113" motor that hasn't been optimally tuned. Not saying impossible but it would be one in many.
 
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Old Oct 5, 2015 | 08:43 PM
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Originally Posted by djl
Yes it does. Which explains the numbers; 125/130 is on the strong side for a 113" motor that hasn't been optimally tuned. Not saying impossible but it would be one in many.
No problem with a TW-408g7 cam.
 
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Old Oct 5, 2015 | 10:24 PM
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Should be a fun bike..... I think Bob has a 117, probably gets r done!
 
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Old Oct 6, 2015 | 07:39 AM
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We've seen 113"s at the 130/130 mark with a Wood 8.
There is a fellow on the CVO site that has one of our set ups.
He also runs a 30T trans sprocket on that.
RC Cycles certainly knows what they are doing.
Bob Lobenburg is one of the best tuners in the country, if I was asked that question.
We always reccomend them to our clients if they are even remotely close to them.
Scott
 
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