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Old Dec 13, 2015 | 08:15 PM
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Im having head work done i currently have se 204 cam big ness sucker a/c se prorace tuner bassini road rage pipe. i am getting head work done, lowering the front sprocket to a 30 and the rear to a 48, keeping the basini header but change the muffler to a supper trap mega with disks.im also getting better tune.i am also rising the compression to 10:1. can any one tell me how it will improve my numbers before i pull the trigger? thank you i do not want to change the cam at this time in a bout 2 yrs i will go with the new 110 kit possible then i will change the cam. my bike is a 2014 softail slim below is the current dyno
 
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Old Dec 13, 2015 | 08:18 PM
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If you don't change the cam when you do the head work, you won't notice that you did the head work (until you change the cam.)
 
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Old Dec 13, 2015 | 10:36 PM
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Most cams will respond well to headwork including the 204, good quality headwork could net you 5-10 in numbers with emphasis in the mid to upper range.
 
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Old Dec 14, 2015 | 05:14 AM
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In my opinion if you are doing headwork you would get much better results if you also changed to a higher lift cam, 204 cam is a good bolt in but there is so much better out there
 
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Old Dec 14, 2015 | 05:23 AM
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the 204 will respond very well to 10.0-1.make sure your headwork is done for THAT cam,dont buy "off the shelf" heads
 
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Old Dec 14, 2015 | 09:55 AM
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Over the years many have come in here with the 204 cam.
Works good, not a barn-burner, but a good cam.
They do respond well to cylinder head work.
Scott
 
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Old Dec 14, 2015 | 10:35 AM
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Originally Posted by wild13bill
Im having head work done i currently have se 204 cam big ness sucker a/c se prorace tuner bassini road rage pipe. i am getting head work done, lowering the front sprocket to a 30 and the rear to a 48, keeping the basini header but change the muffler to a supper trap mega with disks.im also getting better tune.i am also rising the compression to 10:1. can any one tell me how it will improve my numbers before i pull the trigger? thank you i do not want to change the cam at this time in a bout 2 yrs i will go with the new 110 kit possible then i will change the cam. my bike is a 2014 softail slim below is the current dyno
First thoughts are that you have spend a fair amount of money to get the same numbers a tuned Stage I 103 will make; could be the tune; could be parts that don't play well together as in the pipe and cam.

Not sure what Bassani Road Rage you are running but they generally have the reputation for being fairly decent pipe with respect to TQ/HP with an emphasis on HP. Regardless of what other modifications are made, why not give the pipe a chance before tossing it? Same with the sprocket change, focus on the motor first and get all you can from the motor before making ancillary modifications; method to the madness.

Increasing the compression will make a difference with the SE204 cam, if you insist on keeping it. If you do decide to keep the SE204, install a set of 1.7 ratio rockers, at least on the intakes, to increase lift.

Not being critical of your plan but maybe take a step back and implement the plan in phases. Head work first, specifically for the 204 or whatever cam you choose, retune and see what you have. If you are open to a cam change, consider the TTS100, Andrews 48 or 57, TMan 590, S&S 585. However, remember that the head should be setup for whatever cam you select; chamber volume will vary with each cam.

I am thinking a cam change with the appropriate head work will wake up that 103 and you might not want to make any other modifications.JMHO.
 
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Old Dec 14, 2015 | 04:00 PM
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thank all for taking the time to help me with your response and suggestions.
 
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Old Dec 14, 2015 | 05:39 PM
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Remember that the valve pockets on the stock 103 pistons are not very big and certainly not setup for OS valves. Remember that when you start milling the heads.

However i highly recommend stepping up to a 107 or 110 if you already have it pulled apart. Your already there its just the wrist pin retainers between you and a big bore kit and a zero miles top end.

If it were me and i couldnt swing fully worked heads AND the big bore kit i would do a street port on the heads with a 1.910 intake valve on the heads and a big bore kit.
 
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Old Dec 15, 2015 | 06:33 AM
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Many avenues to explore.
Let us know if we can lend a hand.
Scott
 
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