What's to gain from headwork on my 103?

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#21

01-27-2012, 12:58 PM

Inspector 12

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Quote:

Originally Posted by cecil1

I have a 09 Fatboy and did the stage three upgrade. 259e cams, high compression pistons, pushrods, etc. I didn't do any headwork. Dealer said I am leaving performance on the table without headwork. I love the way the bike responded to the build, but what am I looking at if I do headwork? Performance, more lopey idle, reaching full potential on my build? Your help is appreciated.

When we did the stage II 103 on my 2010 Street Glide the 259e cams and more compression was one of the considerations. As I explored that option I also spoke with Dan Baisley about doing the heads and throttle body. The estimated benefit to porting the heads and matching the throttle body was 6 hp and 6 tq, the cost at the time to do both was around a grand. I finally decided to go with the stage II and SE 255 cams since torque was my primary goal for the bagger. The bang for the buck was a lot more doing the stage II as the increase was from 68 hp and 84 tq stock to 92 hp and 106 tq for the stage II.

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