What cam should I use? 04 softail
I use the DKCustoms Thunder Torque Inserts, which is a modified lollipop design. LOVE them. The only issue is that you have to cut holes in the back of the heat shields to install them. If you're careful, it can be done and hardly tell you did this unless you look for it. Another option I tried was taking the wrap off the quiet baffles.
How many miles on the bike?
This is a science, start with the heads, then decide the cam. 11:1 much better than 10:5 with same stock cam. Gets better after that jug work, just cant use a torque cam thats restricted to a 10:5 jug.
The amount of power and where it comes in has everything to do with the specs of the build and nothing to do with cam drive method
https://www.feulingparts.com/sku/7220
Depends on your bike, how heavy it is, ride solo or 2up, and your riding style.
Chain vs gear drive has nothing to do with it. When the intake valve closes does.
Hp cams with a late intake valve close bleeds compression. If it bleeds too much you need to raise it either using different pistons, decking the heads, and/or using a thinner head gasket.
Too high of compression and you get detonation which can destroy a motor quick.
Corrected compression of 180 on the low side to 200 on the high side is generally where you want to be.
The 37g is a bit of hp cam and will be a little soft in your stock application but not too bad if you ride aggressively and keep the rpm up a little. Personally I think they are a good choice. If not those, look for others with similar intake valve open/close events. S&S 510 would be another.
Again, chain or gear drive has nothing to do with it.
Your V&H pipes with no baffles will not help the situation. The TTIs will help quite a bit tho when it comes to getting back some good low end torque back.
This is a science, start with the heads, then decide the cam. 11:1 much better than 10:5 with same stock cam. Gets better after that jug work, just cant use a torque cam thats restricted to a 10:5 jug.
You can use this Compression calculator to see what a specific cam will give you for compression based on your engine specs and give you an idea what you need to do to get where it should be. Like I said previously, a corrected compression of 180psi to 200psi is where you want to be. 190ish being ideal.
You can also use this Camshaft comparator to compare specs of different cams. You'll notice the tw37 and S&S 510 have the same lift and same 38° intake valve close. The 510 has more overlap tho which can also help with cylinder fill and power if your exhaust works well with it. Cylinder fill is the name of the game. Your exhaust can make or break a build. Especially with good performance cams with overlap.
Hope this helps.
Last edited by 60Gunner; Jan 10, 2021 at 10:22 AM.
Something whispers this is a pretty well rounded cam, but mind you, I do not and rarely hit the highway. Normally a trip to New Hampshire in a cage on the highway will run you about 3 to 3.5 hours. When the misses and I load up, that trip takes over 6+ hours, backroads and scenic routes. It's all about the journey .
https://www.feulingparts.com/sku/7220
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