I dont see much diff here. Do you? except price. What do yall think.

 

interesting

 

The intake valve closing is when you start building compression, if you just drop in the TW6-6 without raising compression a 4* advance gear is recommended by a few builders,{more money} The SE204 closing at 34* is a good cam for stock compression but if you raise it much pinging "might" be a problem. It was down to the TW6-6 or 37's for me but the $228. price sold me on the 37's.

 

http://www.harley-davidson.com/en_US..._02_Engine.pdf On page 19 they explain the valve timing and powerbands.

 

What kind of numbers are you getting ?

 

SOP feel is great, I haven't dynoed yet because my autotune did its job, I do plan on doing one for the numbers soon when it gets a little cooler, I don't want to do it in this heat.

 

Hmm...so then you could just go down and get a $20 dyno run...

 

I just put the 204's in mine with stock internals and no headwork. I also put the Andrews 30 tooth pulley on. It dyno'd 90 horse and 98 ft.lbs. with stage 1 aircleaner and Big Shot staggered pipes with stock baffles. Also dyno'd with the quiet baffles, horsepower/torque curve was the same but down by 5 through the powerband

 

They may look close but it's amazing what 2 degrees can do to change the attitude of an engine.