Can one get 100hp from 204's in a 103
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Of course I also have an 06 street bob I ride that is 139.92 hp and 133.7 tq at the tire so I don't need the bagger to run harder than it does to pacify my desire for horsepower..
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Simple reality related to horse power is that 2-2 exhausts leave approx 10 hp on the table. My 2010 street glide stage II 103 with no head work but using a D&D Boss Fatcat 2-1 with a big bore quiet baffle makes 92 hp and 106 tq. At the time my stage II work was done we talked about having Baisley do the heads as the stage II work was done at a shop near Portland Oregon near Baisley. The estimated performance bump from porting the heads and manifold was 6 hp and 6 tq and I decided the price per hp and tq didn't justify the effort. Three years later the bike runs really strong and has been very reliable.
Of course I also have an 06 street bob I ride that is 139.92 hp and 133.7 tq at the tire so I don't need the bagger to run harder than it does to pacify my desire for horsepower..
Of course I also have an 06 street bob I ride that is 139.92 hp and 133.7 tq at the tire so I don't need the bagger to run harder than it does to pacify my desire for horsepower..
I talked with a head porter in WA state and he said to use different cams such as the t-man 555's. Here is what he said and I sort of agree after reading what you also chimed in with.
I am quite sure just adding ported heads to what you have now will be abit of a disappointment as the whole combination is not really working welltogether. The HP would rise probably 7hp but the torque down low will not.
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I'm going to jump start this thread. I don't think that the se204 in the 103 will achieve your goal. I also am of the opinion that true duals will cost some low end torque, but not hp which comes on at higher rpms. One thing that I don't understand is the 215 ccp. Is this not high? If you are going to invest in headwork, why not match the cam, breather and exhaust system to get the most out of the build?
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That true dual 10 hp figure is definitely on the high side. It would probably be more in the range of 5-8 hp. Same for torque. I must be a total dolt because I don't know what 'ccp' is - I'm assuming it stands for cold cranking pressure?
Last edited by Leftcoaster; 03-04-2013 at 06:00 PM.