124" build...I'll let the cat out of the bag

[98fxstc]

A quieter valve train and a better looking chart !

You made the right call Ray .

[No Cents]

looks like it's falling on it's face @ 4500 for some reason 

[bulldog]

Nice to see what the Dragula Fang would do!!

[strokerjlk]

looks like it's falling on it's face @ 4500 for some reason 

That's because it's hitting hard down low  now
It's the pipe cam / combo . Arm jerker catapillar motor 

[CowboyTutt]

Yup, pipe issue in my book.  -Tutt 

[strokerjlk]

I could have left it like this . This Is with the Afr dialed in and the cycle Rama timing .
Nice pretty tq graph with 140 hp .
But I went after timing and brought it up . Now we see how the zilla really works

[mike jesse]

I'd ride it Ray.

[No Cents]

I'd ride it Ray.

that's the plan. It looks to be making good power where I do most of my riding...just not a bunch up top.
The -2's pull hard off the bottom and in middle for sure.
The thing that impressed me was how quiet they are in the motor vs them in the 117.

[IronMike113]

Hey Ray that cam does hit very hard on the bottom mine does the same thing,only thing diff. Is I'm running a HO Pro pipe mine carrys it alittle farther but my torque starts to slowly fades to just about 135/140 LBS @5250 but the HP still climbing a bit and starts to fade @5700 RPM' So when I run it I pull it to 5500 and shift for the frist 3 gears than back out of it, Becauce at that gear and RPM's your haul a$$ in very short order!!!   

[strokerjlk]

just not a bunch up top.

you wont miss a thing.
your cycle rama cam pulled up one 145 hp run. it made 143hp  run after run.
the 662-1 pulls up 141 hp run after run.
it took some work to bring the bottom end up. thats what your gonna feel different

[No Cents]

140 square...ain't too shabby for a barn built motor. It wont set no world records...but it should be fun to ride.
I can't image it with more bottom end...it was plenty strong running the Cyclerama 650 cam tune on the bottom...with the 662-2's installed in it.
Now with more bottom end torque...I will probably have to be buying a new rear tire before fall gets here.   

[autoworker]

Now you and Jim can bust'em off side x side and see who's got what.

Plenty of flat and straight stuff around him.

[Admiral Akbar]

Now you and Jim can bust'em off side x side and see who's got what.

Plenty of flat and straight stuff around him.

Yeah.. Flatlanders.. 

Max

[WI Bob]

looks like it's falling on it's face @ 4500 for some reason 

Da exhaust wants an experiment.

[No Cents]

looks like it's falling on it's face @ 4500 for some reason 

Da exhaust wants an experiment.

you and Andy are probably right about the exhaust. The Fang would be interesting...but I cant afford to run the bike back and forth to Jim's for exhaust testing. I'll have to live with what I got for now.
With the Cyclerama cam tune...I never did feel a stumble that it shows up on the graph. It revs so quick from the bottom to the rev limiter that it felt better than anything I had ever ridden before. I was impressed with that. The -2 cams definitely made it more in town friendlier down low, and it seemed to have stump pulling power associated with them. The hp line seems to be headed up in the right direction off the bottom quickly...but it hits that 4500 rpm stumble and doesn't recover well. I still dont think it hit my compression goal for some reason. I might look into having a set of CP domed pistons made this winter...and get the compression up where I want it. I'll have to debate that one. It felt like it had plenty of ass to it before dropping it off for the last re-tune.
I do most of my riding under 5K...so the occasional rev limiter bounce on this motor should suit my riding style perfect. I will really enjoy having the tq on bottom and mid range areas.
I looked at Jim's 1st graph again this morning...it almost made 142 SAE square. I think I'll enjoy this one for a little while.
Winter might make my idle hands want to do a little more to it.   

[strokerjlk]

there is no stumble to feel. your getting every bit of what the pipe will allow.
maybe max can explain the under/over exhausting of the pipe better than me.

here ya go ...fixed it

[strokerjlk]

had a request for the ccp and run #6 and run #22 on the same sheet.
it actually sat at 200 ccp for a while . by the time i snapped the pic it dropped 1 or 2 ccp

[strokerjlk]

run # 3 blue ...is as it was delivered with the cycle Rama tune ,with 662-2 cams .
run #6 Red is after AFR ( ve's) were calibrated
run # 22 Brown is as it sits now .

[hd king]

    Looks good!!   

[Admiral Akbar]

maybe max can explain the under/over exhausting of the pipe better than me.

prolly not but I would suspect that the issue is the exhaust..    Definately got some HP/tq there... tho

Max

[06roadglide]

I'm interested in hearing what pipe it would take to help Rays motor. I always thought the zilla was a good choice on big motors. What are its limits? Is the collector to far from the port? Collector diameter? Head pipe length to long or short?
I'm all ears to this topic because exhaust tuning has had my attention for quite some time now but I can't seem to figure out how to approach wave tuning, over exhausting, etc.   

It doesn't help that I have this same pipe/cam combo on my 117. Haven't had it tuned or even on a dyno with this combo.

[No Cents]

I'm interested in hearing what pipe it would take to help Rays motor. I always thought the zilla was a good choice on big motors. What are its limits? Is the collector to far from the port? Collector diameter? Head pipe length to long or short?
I'm all ears to this topic because exhaust tuning has had my attention for quite some time now but I can't seem to figure out how to approach wave tuning, over exhausting, etc.   

It doesn't help that I have this same pipe/cam combo on my 117. Haven't had it tuned or even on a dyno with this combo.

me too...I'm all ears

[VDeuce]

I dunno, I have the Boarzilla on my 120R with the 662-2 cams and the dyno showed around 143-145 HP/TQ with a decent curve. I need to find that sheet and post it up...

Heads were stock other than being milled a little to bump compression and .030" gasket. Cranks around 208 PSI.

[Admiral Akbar]

I'm interested in hearing what pipe it would take to help Rays motor. I always thought the zilla was a good choice on big motors. What are its limits? Is the collector to far from the port? Collector diameter? Head pipe length to long or short?
I'm all ears to this topic because exhaust tuning has had my attention for quite some time now but I can't seem to figure out how to approach wave tuning, over exhausting, etc.   

It doesn't help that I have this same pipe/cam combo on my 117. Haven't had it tuned or even on a dyno with this combo.

I don't exactly know but the extra displacement coupled with something like pipe length to a slighty different baffle design. Not all zillas are made the same.. There are up to 08 bagger, 09-up bagger, softail, dyna pre 6 and post 6.. It doesn't take much to make the pipe behave different.. Add an inch here, take a way one there.. It may be that some peak flow number has been crossed and some sort of turbulence in the pipe ensued..  The thing to do is change the pipe / baffle and see if the step moves or goes away.

Max

[IronMike113]

On my HO pipe I added 6" to the end to clear my bags,you know what they say longer is better with the pipe 😎