Author Topic: 120r with 64HG cams  (Read 1788 times)

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Offline oilburner

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120r with 64HG cams
« on: Wednesday, November 28, 2012. 05:50:07 PM. »
As it stands I have a 120r with 64HG gear drive cams, the engine was installed by my local dealer and tuned by Russel @ Lonewolf Performance. The current setup made 126hp/120ft lbs, this with Exotic Chopper Kaos pipes.
Originally I chose the cams  to run with the upgrade race kit however I decided to shelf the race kit for the time being. I have the race kit in a box and have considered doing just the pistons as the bottom end could use a little jolt. My cold ccp is 150, therefore going to the 12:1 pistons may be reasonable for the street and tunabilty...looking for some thoughts on this.

My bike is a 2007 FXSTD

Offline CowboyTutt

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Re: 120r with 64HG cams
« Reply #1 on: Wednesday, November 28, 2012. 05:54:00 PM. »
I believe that Steve at GMR Performance in Prescott, AZ also recommends custom pistons (which he developed and sells) to raise the compression of the stock 120R motor.  He also maintains (at least last I heard) that the stock cam that comes with that motor is the best one provided it gets more compression.  That being said, for all I know he's secretly working on a custom camshaft.....

-Tutt

Offline hrdtail78

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Re: 120r with 64HG cams
« Reply #2 on: Wednesday, November 28, 2012. 06:08:34 PM. »
Exotic Chopper Kaos pipes.

I would spend money replacing the exhaust before.........   Russel might be able to squeek a couple more points out of it.
Beer taste w/ a beer poketbook     Semper Fi

Offline CowboyTutt

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Re: 120r with 64HG cams
« Reply #3 on: Wednesday, November 28, 2012. 06:23:17 PM. »
Hardtail, your probably right.  Never even heard of that exhaust before.  Probably could benefit from both higher compression pistons and an exhaust if money were no object.  The exhaust is one of the most critical elements of an engine build.  Russell was trained by Doc in Florida and is a competant tuner. 

Funny, so many people think they can improve upon Harley's stock 120R kit with simple changes.  Not so easy!  Most of the time they flop.  Harley did put some work into the 120R!   

-Tutt 

Offline oilburner

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Re: 120r with 64HG cams
« Reply #4 on: Wednesday, November 28, 2012. 09:21:47 PM. »
Yeah Russel is kick ass. He spent like 13 hrs on my bike it was so fun to watch and see the changes from start to finish..he  will be the man the handles all of my tuning for sure.
As for the pipes i like em, and get they steal power but for now they are staying put.


Offline torqueinc

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Re: 120r with 64HG cams
« Reply #5 on: Wednesday, November 28, 2012. 10:01:51 PM. »
http://exoticchoppers.com/KAOS

  If you are running these things they are a cork in the power production department
bluh bla ? Blah Blah Blah !

Online Gmr-Performance

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Re: 120r with 64HG cams
« Reply #6 on: Thursday, November 29, 2012. 06:34:06 AM. »
Have spoken with Russle seems like a very smart guy. I do think that he is at  high elevation so that is going to alter your comp ratio. That cam is one that I have run in the past not with the MVA head but with other set ups, its very much like a S&S 640..
« Last Edit: Thursday, November 29, 2012. 08:14:08 AM. by HD/WRENCH »

Offline strokerjlk

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Re: 120r with 64HG cams
« Reply #7 on: Thursday, November 29, 2012. 08:10:54 AM. »
Stick the pistons in. Or swap the cams.
Those pipes might like a shorter cam.


A scientific theory summarizes a hypothesis
repeated testing establishes theory

Offline oilburner

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Re: 120r with 64HG cams
« Reply #8 on: Thursday, November 29, 2012. 02:20:05 PM. »
Have spoken with Russle seems like a very smart guy. I do think that he is at  high elevation so that is going to alter your comp ratio. That cam is one that I have run in the past not with the MVA head but with other set ups, its very much like a S&S 640..


Russel is right at sea level

Stick the pistons in. Or swap the cams.
Those pipes might like a shorter cam.





Yeah I'm thinkin the pistons will go in, before I change cams or pipes..

Offline Durwood

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Re: 120r with 64HG cams
« Reply #9 on: Thursday, November 29, 2012. 02:31:05 PM. »
Have spoken with Russle seems like a very smart guy. I do think that he is at  high elevation so that is going to alter your comp ratio. That cam is one that I have run in the past not with the MVA head but with other set ups, its very much like a S&S 640..


Russel is right at sea level

Stick the pistons in. Or swap the cams.
Those pipes might like a shorter cam.





Yeah I'm thinkin the pistons will go in, before I change cams or pipes..

That's what I would do,If I had them,you can buy a pipe later as money allows. :up:

Offline strokerjlk

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Re: 120r with 64HG cams
« Reply #10 on: Thursday, November 29, 2012. 03:07:52 PM. »
Quote
That's what I would do
seems I heard that before  :fish:
 
A scientific theory summarizes a hypothesis
repeated testing establishes theory

Online Gmr-Performance

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Re: 120r with 64HG cams
« Reply #11 on: Thursday, November 29, 2012. 03:35:31 PM. »
Should be a very stout build.. Pure 93 fuel would be needed and a great tune from Russell should be fine.

Offline Durwood

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Re: 120r with 64HG cams
« Reply #12 on: Friday, November 30, 2012. 05:04:41 AM. »
 
Quote
That's what I would do
seems I heard that before  :fish:
:potstir: :hyst:

Offline FXDRYDR

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Re: 120r with 64HG cams
« Reply #13 on: Friday, November 30, 2012. 05:10:17 AM. »
Quote
That's what I would do
seems I heard that before  :fish:

You guys say the same thing all the time... I think you're the same person.


Offline strokerjlk

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Re: 120r with 64HG cams
« Reply #14 on: Friday, November 30, 2012. 08:57:20 AM. »
Quote
That's what I would do
seems I heard that before  :fish:

You guys say the same thing all the time... I think you're the same person.
we are both suckers for a motor under compression.  :scoot:
we were listing to a band once ,I looked at him and his bride and asked...you guys know how to two step?
they looked at each other and went " @ what rpm" .....naaaaaa....naw..naaaa...naw ....naaaaa  nawaaa naaaaa...na :hyst:
A scientific theory summarizes a hypothesis
repeated testing establishes theory

Offline hrdtail78

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Re: 120r with 64HG cams
« Reply #15 on: Friday, November 30, 2012. 09:36:18 AM. »
Are you saying you can have the same idea's as others, and even repeat them without being lemmings, koolaid drinkers, or sheeple?  Very interesting.
Beer taste w/ a beer poketbook     Semper Fi

Offline CowboyTutt

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Re: 120r with 64HG cams
« Reply #16 on: Friday, November 30, 2012. 10:30:36 AM. »
"Were all clones, all are one and one are all, all are one and one are all!"

-Alice Cooper 

 :hyst:   :koolaid:

Offline strokerjlk

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Re: 120r with 64HG cams
« Reply #17 on: Friday, November 30, 2012. 10:48:59 AM. »
Are you saying you can have the same idea's as others, and even repeat them without being lemmings, koolaid drinkers, or sheeple?  Very interesting.

no I am saying we both come from a bracket racing background,and like motors with compression.
others like to stay where they are safe. neither is right or wrong.

if you want to talk about your insecurities,start a thread in Earls place. :cry:
A scientific theory summarizes a hypothesis
repeated testing establishes theory

Offline hrdtail78

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Re: 120r with 64HG cams
« Reply #18 on: Friday, November 30, 2012. 11:31:44 AM. »
no I am saying we both come from a bracket racing background,and like motors with compression.

No need to justify.  Just enjoy the juice.

Beer taste w/ a beer poketbook     Semper Fi

Offline oilburner

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Re: 120r with 64HG cams
« Reply #19 on: Friday, November 30, 2012. 07:44:06 PM. »
Should be a very stout build.. Pure 93 fuel would be needed and a great tune from Russell should be fine.

Sooo if 93 is not at the pump will a lesser grade present poor running and detonation??

Offline FLHXHS

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Re: 120r with 64HG cams
« Reply #20 on: Wednesday, December 19, 2012. 12:04:40 PM. »
Oilburner,

Russel did my 120R as well.  :up:

As far as high octane availability goes, here is what I've found:

94 is available on the Island, Lower Mainland, and Kamloops. Further up the North Thompson, you're down to 91, with 92 showing up occasionally. 94 is only at Chevron, and it is delivered by truck, from Burnaby. Strathcona Refinery [Imperial], and Edmonton Refinery [Petro-Canada / Suncor] deliver gasoline down the Trans Mountain Pipeline. They add the additive packages locally, and that is the difference. Corrossion inhibitors and anti-gel and all the other good stuff that will give you cancer. It is nasty stuff. I worked with it.

When riding south in the US, I've found 91 or 92 Octane. I hear about these magical 100 Octane pumps, but I haven't found one yet. For the rebuild Russel just did for me, we tuned with 91 Octane. Sure we left some numbers on the table, but since I can't find the higher octane further away, I thought lets tune with the 91.

If you're a numbers guy, stick to 94. I saw the exhaust system and it looks cool, raunchy, and loud. I dunno what you're riddin, but I'm on a FLHX and I have the SuperTrapp. So you might tour with that exhaust, it might be too loud for me.

Maybe you need some booster...
2009 FLHX - 120R Crate, SuperTrapp 2:1, SE Heavy Breather, Tuned by Lonewolf