What numbers are you looking at to determine if the cam looks good or not? Ok, so I have a question on that calc. I was trying to plug in numbers for my SS110 kit. The piston dome according to their specs is .75 popup where do I enter this info into calc?

 

The .75 would be entered as the "piston dome volume"; where the --1.5 is in the sheet 2013_FLHTK attached.

A couple of things to consider regarding the numbers. Are you sure your head chambers measure 85cc? The could easily be 86cc. Deck height could easily be .005"-.007" but it is not likely it will be 0.00". If not, the cylinders can be trimmed to set deck at 0.00". Head gasket thickness can also vary, using a .040" head gasket in lieu of .030" can reduce CCP a bit if necessary. With CCP at 200psi, compression releases should be part of the plan. Also note that the BB compression calculator is for sea level and should be adjusted for altitude for accurate data.

I suspect that 2013_FLHTK is looking at corrected compression and CCP as the basis for the "numbers look good" comment but numbers don't necessarily translate to a nice dyno sheet and rideability. Exhaust also is a key component of the plan. It would be a good idea to look at some 110 dyno sheets and the various combination of parts for the builds before making a decision on cam selection. Also important to talk to your tuner as well.

There is much more to planning a build and achieving the desired results than selecting a cam based on numbers generated by a compression calculator.

 

Seems like those Reaper 574's get discussed a lot, most of the time followed by "what can I do to improve the left side of my graph"

suggest you do some research here and other forums and look at real world dyno sheets, not the ones used for advertisement

it may be your cam, just do some research first

 

I simply based if off your 10.7 compression number. I'm far from an expert but I thought your ccp looked correct with that cam. As I mentioned I know nothing about that cam but I do have a question. How do you know your static compression id 10.7?

 

Pretty sure the OP is basing the 10.7 on S&S specs for the 110 kit but that assumes data that has yet to be determined as was pointed out back in reply #12. Once the kit is in hand, the OP will have to mock up, measure and develop a plan based on the measured data to set the top end up to insure that actual static is 10.7 if that is the target.

Here's a dyno sheet of a 110 S&S drop in with CR575 cams, ported heads, zero decked, D&D Fatcat. The OP can expect similar results with the right builder and tuner.

 

Guy who did heads and my builder said it was. They put a .030 gasket on their too.

 

And this is what I thought mine was going to look like...

 

And it will if same components are used and CCP is about 200psi and built and tuned by folks that know what they are doing and have the track record to back them up. I know Nick at Shamrock Cycles and if you fortunate enough to have access so a builder/tuner with Nick's experience, your results will be similar.

 

CR595 with right components will carry out to the 6k like the OP wants, good low end pull but not great unless squeezed to the 11 or 11.2 cr range. Just built one in a 110 RG and very happy w the end to end power BUT at 10.7 or a tick less which may be the case here I would vote against these cams. Like said target 200-205 ccp with right cams and good tune and knowing the true static compression is ideal for making a wise choice as already stated, good advice.

 

Can a good tuner tell if im at 200psi and 10.7 compression?