slip ons?
#2
Based on our conversation earlier today, you're happy with your cams which are mid range to top end cams. If you want to maximize those cams, you'll choose slipons that are 4" to 4.5", most likely. You'll have a 103" that'll easily do 120 MPH, and still be making solid power when you roll on the throttle cruising at 85-90 MPH, and likely even higher. If you want to balance those cams out a tad, you might go with 3.5" slipons that are going to increase your torque range a touch, give you excellent mid range, and respectable top end (HP). But the top end with 3.5" won't be the same as it would be if you went with a larger diameter slipon. If on the other hand you wanted "off the line, hold on for a good time" bottom end torque, you're current cams would not be the right choice for that. You would want to choose a cam that makes power in the low RPM range, AND couple that with 3.5" slipons.
For whatever it's worth to you, I don't think that the 103" puts out enough power to really support a 4.5" slipon IF torque is the goal. I ran a set for three years until I dropped down to a 3.5" last weekend. The difference in torque is remarkable with the 3.5" slipons. BUT......before changing to 3.5" slipons, I could roll the throttle at 90-100 MPH, and the power that my motor was still making at that speed and RPM level was astonishing (118+ MPH was no problem, and I don't have a top end cam in my bike with the TW-222's). I just decided that that was not where I wanted my power band to be. Stuff can go very wrong very fast at those speeds, so I would rarely go there for that reason.
Comes down to what you want, but they can be viewed through the same lens (essentially) that you view cams through: you can have one or the other (or something right in the middle), but you can't have both or all three at the same time.
Last edited by gipper; 07-23-2015 at 10:38 PM.
#3
#4
I dont think this is true for recent softails, 10-up, I think.
#5
You might be right, I should have posted more details. I had a '13 Deluxe and the cats were definitely in the mufflers, slip-ons made a good improvement. My current bike us a '14 RK and the cats are in the head pipes. In the near future I am going to go with a complete new exhaust, no slip-ons.
#6
You might be right, I should have posted more details. I had a '13 Deluxe and the cats were definitely in the mufflers, slip-ons made a good improvement. My current bike us a '14 RK and the cats are in the head pipes. In the near future I am going to go with a complete new exhaust, no slip-ons.
I could be wrong tho, its happened before, remarkable as it may seem...
#7
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