Strong Engine....Weak Idle Sound
Strong Engine....Weak Idle Sound
With my engine build can someone give me some suggestions on what Cam can I change to, to make my bike sound better at Idle...A Stock Bike with Rinehart's on it, sounds better at low RPM and Idle that mine does... It is just pathetic the way it sounds..I know that this might seem to be a trivial matter to lots of you all, but it is a big deal to me...I hate to start it up when someone asks to hear it, because the way it sounds...Lets not get it twisted, because it runs Strong, like a Raped Ape, but sounds like a stock bike off the showroom floor...It is a 01 Road King with the MM FI System and makes 95HP with 103TQ...It has as S&S Full Header with 4" Rinehart's...I have had several different combinations of Headers and Exhaust systems and nothing has changed much with the Idle Sound...I even have the Reinhardt, Competition Baffle installed...I have the S&S 510 G cams installed in my build...95" SE Flat Top Pistons... 9:7:1 Compression... .030 Head Gasket...82 CC Combustion Chambers...1.900 Dia. Intake Valve... 1.610 Dia. Exhaust Valve...590 Lift Beehive Valve Springs...195/205 Exhaust Port Flow... 265/270 Intake Port Flow....There you have it.....So, What Cam can I put in this motor combo that will give me some Exhaust Lope, so that it will not sound like a Stocker...
Club Member
Joined: Mar 2016
Posts: 11,688
Likes: 22,275
From: Clearwater, Idaho
I agree- idle speed is key. The cams in my 103HO (sort of equivalent to the SE255s) is a good deal milder than the 510G cams, and the idle is actually pretty darned nice right at 1000 rpm...... The OP's cams should sound a lot better than mine with a proper idle speed.
Since you asked for a cam opinion, I'd say a woods 7, since you have .590 lift springs you could have many more options in cams but more cam usually means more compression is needed.
Last edited by cdonis; May 28, 2016 at 09:02 AM.
Seasoned HDF Member
Joined: Mar 2012
Posts: 100,455
Likes: 19,811
From: Centennial, CO
Didn't like any of the answers you got in this thread?:
https://www.hdforums.com/forum/touri...e-exhaust.html
Andrews 37
https://www.hdforums.com/forum/touri...e-exhaust.html
Andrews 37
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