Tech offering: Evo cam in a pan 101 - The Jockey Journal Board

Go Back   The Jockey Journal Board > General Discussion > Tech Archives

Reply
 
Thread Tools Search this Thread Display Modes
Old 08-30-2007, 10:20 PM   #1
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Tech offering: Evo cam in a pan 101



So I wanted to run evolution heads on my pan/generator bottom end.

Easy enough, get the cases machined for evo stud spacing and bolt the top end on!

But what about a cam? Evolution heads/valvetrains like hydraulic tappets and evolution cam grinds/profiles. However evo cams will not fit in a pan gearcase. They're longer, and have a much larger diameter outer journal. Not enough meat on the generator cam cover bushing boss to bore out either. Looks like we need a specialty cam!

Call 3-4 cam manufacturers & see who's willing to grind an evo profile onto a pan shaft blank. Only two companies will even talk to me. One says $500 - $600, the other says 100 piece minimum order. Since I dont need 100 special cams, nor do I fell like grabbing my ankles & being analy violated, I decide to do this.

An evo "cone" type cam looks like this:



I got an old lathe, so I get to cutting:


F.St.M. is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 08-30-2007, 10:26 PM   #2
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101



It's rough, so I press off the gear and make some fine cut passes:


Much nicer now:


Mark the approx desired overall length:
F.St.M. is offline   Reply With Quote
Old 08-30-2007, 10:33 PM   #3
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

With overall length marked:


I switch over to the bridgeport mill:


That big 6 flute endmill slices thru the cam like a hot butter through knife:


Back to the lathe, I chamfer the end:

F.St.M. is offline   Reply With Quote
 
Old 08-30-2007, 10:39 PM   #4
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

Machining is now done:


Compare overall length with an actual pan cam:


Looks like a keeper:



Well that's it, evo cam in a pan. My little tech week contribution.

P.S. It does run.
F.St.M. is offline   Reply With Quote
Old 08-30-2007, 11:20 PM   #5
Abe_Lugo
Senior Member
 
Join Date: Jun 2005
Location: Los Angeles
Posts: 798
Default Re: Tech offering: Evo cam in a pan 101

Dude,
That is cool and all with the changes, but do you still call your engine a pan?
I really do admire the effort to change the engine internally. Like those knucklehead sportster engines.

But it looks like your running a 5 speed? are you a douche?
Abe_Lugo is offline   Reply With Quote
Old 08-30-2007, 11:29 PM   #6
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by Abe_Lugo View Post
Dude,
That is cool and all with the changes, but do you still call your engine a pan?
I really do admire the effort to change the engine internally. Like those knucklehead sportster engines.

But it looks like your running a 5 speed? are you a douche?

No, I call it an evo.
I am running a 5 speed.
I prefer to refer to myself as a vaginal cleansing.
F.St.M. is offline   Reply With Quote
Old 08-31-2007, 12:21 AM   #7
Abe_Lugo
Senior Member
 
Join Date: Jun 2005
Location: Los Angeles
Posts: 798
Default Re: Tech offering: Evo cam in a pan 101

you had me fooled for about 30 secs. show the rest of the bike.
Abe_Lugo is offline   Reply With Quote
Old 08-31-2007, 12:52 AM   #8
Jimmy the saint
Senior Member
 
Jimmy the saint's Avatar
 
Join Date: Nov 2006
Location: SoCal
Posts: 550
Default Re: Tech offering: Evo cam in a pan 101

I will trade you more Evo heads for your discarded Panheads
Jimmy the saint is offline   Reply With Quote
Old 08-31-2007, 01:48 AM   #9
chopperking
Senior Member
 
chopperking's Avatar
 
Join Date: Aug 2007
Location: zurich, switzerland
Posts: 350
Default Re: Tech offering: Evo cam in a pan 101

congrats, man. best tech article so far in my book. thanks for the great pics.
see ya
chopperking is offline   Reply With Quote
Old 08-31-2007, 02:29 AM   #10
SDJose
Senior Member
 
SDJose's Avatar
 
Join Date: Oct 2005
Location: San Diego
Posts: 188
Default Re: Tech offering: Evo cam in a pan 101

Panolution! Modifying newer parts for an old motor. I think that's fucking alright. Thanks for the pics.
SDJose is offline   Reply With Quote
Old 08-31-2007, 07:33 AM   #11
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by Abe_Lugo View Post
you had me fooled for about 30 secs. show the rest of the bike.
Sorry Mcgoo, but I'm stealing another of your pics of my bike:
F.St.M. is offline   Reply With Quote
Old 08-31-2007, 04:10 PM   #12
Abe_Lugo
Senior Member
 
Join Date: Jun 2005
Location: Los Angeles
Posts: 798
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by SDJose View Post
Panolution! Modifying newer parts for an old motor. I think that's fucking alright. Thanks for the pics.
but that's one of them evo based blocks with a panhead look, not the other way around.
Why in the fuck would I messup a panhead with some an evo top end?
I know guys for this wil generator blocks and call them shovel/pans.

I like evo, I have two. But if I had a ppanhead, I'd leave it a panhead.
I know this has to be some sort of joke anyhow, I not mad just a bit confused.

BTW it's a cool custom bike, but almost nothing original panhead about it.

F.St.M. , isn't it?
Abe_Lugo is offline   Reply With Quote
Old 08-31-2007, 04:16 PM   #13
Trent
Atomic Custom
 
Trent's Avatar
 
Join Date: Jun 2005
Location: Atomic Compound, NM
Posts: 3,829
Send a message via Yahoo to Trent
Default Re: Tech offering: Evo cam in a pan 101

Great tech.

Senseless.

But interesting.


I am thankful it wasnt a real Pan to start with.
__________________
Atomic Trent

Atomic Custom
https://atomiccustom.bigcartel.com
http://instagram.com/atomictrent/


"Custom parts are good only when they're cooler than factory parts. By cooler I mean have better lines, work better, etc."
Trent is offline   Reply With Quote
Old 08-31-2007, 04:28 PM   #14
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by Abe_Lugo View Post
but that's one of them evo based blocks with a panhead look, not the other way around.
Why in the fuck would I messup a panhead with some an evo top end?
I know guys for this wil generator blocks and call them shovel/pans.

I like evo, I have two. But if I had a ppanhead, I'd leave it a panhead.
I know this has to be some sort of joke anyhow, I not mad just a bit confused.

BTW it's a cool custom bike, but almost nothing original panhead about it.

F.St.M. , isn't it?
You're right Abe, This was not a complete pan engine that was bastardized.

It was a collection of used parts from a 1962 FL that were cobbled together in a set of S&S generator cases with the specific goal of mating an evo top end to it.

I never claimed it was anything else.

Only the rods, bearing cages, pinion shaft, pinion gear, breather, timer drive, and generator drive remain from the 62.

Even the 62 flywheels were traded for a pair of Truet & Osborn stroker wheels.

In the original tech article I used the term "pan" when I should have used the term "pan or pre-70 shovel type" It was just easier to type pan, I figured everyone would know what was implied. Sorry if I pissed anybody off with my sacreligious terminology.
F.St.M. is offline   Reply With Quote
Old 08-31-2007, 04:30 PM   #15
TurboRoadster
Senior Member
 
TurboRoadster's Avatar
 
Join Date: Apr 2006
Location: Cut N Shoot, Texas
Posts: 1,944
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by F.St.M. View Post
No, I call it an evo.
I am running a 5 speed.
I prefer to refer to myself as a vaginal cleansing.
__________________
www.ConroePowderCoating.com
JJ member discounts 832-818-3905
[email protected]


Highway HorrorS cc
TurboRoadster is offline   Reply With Quote
Old 08-31-2007, 04:33 PM   #16
Trent
Atomic Custom
 
Trent's Avatar
 
Join Date: Jun 2005
Location: Atomic Compound, NM
Posts: 3,829
Send a message via Yahoo to Trent
Default Re: Tech offering: Evo cam in a pan 101

One other thing... Why the right hand shift?
__________________
Atomic Trent

Atomic Custom
https://atomiccustom.bigcartel.com
http://instagram.com/atomictrent/


"Custom parts are good only when they're cooler than factory parts. By cooler I mean have better lines, work better, etc."
Trent is offline   Reply With Quote
Old 08-31-2007, 05:27 PM   #17
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by Trent View Post
Great tech.

Senseless.

But interesting.


I am thankful it wasnt a real Pan to start with.

I'ts not senseless to me. I aquired the 62 parts in trade for other shit I had that was of no use to me. Same goes for the blockheads.

In order for me to get a running engine together, I needed only cases and jugs w/pistons.

Besides my time/labor I have only $1600 tied up in that engine. I'ts a running 88 incher.
F.St.M. is offline   Reply With Quote
Old 08-31-2007, 05:31 PM   #18
F.St.M.
Senior Member
 
F.St.M.'s Avatar
 
Join Date: Jul 2007
Location: The mountains of NY
Posts: 655
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by Trent View Post
One other thing... Why the right hand shift?
Pure laziness.

After making the floorboards, floorboard mounting brakets, mastercyl perch, brake pedal, and plunger completely from stratch, I was tired.

I opted not to make a foot shift, but rather to use a lincoln C-6 automatic tranny bellcrank and a hurst stick that I had laying aroung in my garage.

Theres a hand clutch on the left bar.
F.St.M. is offline   Reply With Quote
Old 08-31-2007, 06:15 PM   #19
Abe_Lugo
Senior Member
 
Join Date: Jun 2005
Location: Los Angeles
Posts: 798
Default Re: Tech offering: Evo cam in a pan 101

Quote:
Originally Posted by F.St.M. View Post
Pure laziness.

After making the floorboards, floorboard mounting brakets, mastercyl perch, brake pedal, and plunger completely from stratch, I was tired.

I opted not to make a foot shift, but rather to use a lincoln C-6 automatic tranny bellcrank and a hurst stick that I had laying aroung in my garage.

Theres a hand clutch on the left bar.
Wow, thanks to the isight on the engine build now it make sense!
Abe
Abe_Lugo is offline   Reply With Quote
Old 08-31-2007, 07:44 PM   #20
Manny Fresh
 
Join Date: May 2007
Posts: 124
Default Re: Tech offering: Evo cam in a pan 101

my 2 cents. I think this rocks reminds me of the stories you hear about guys during WWll building rides for them selves using what was available, looks great ride the crap out of it, and know that you made it.
Manny Fresh is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -5. The time now is 03:17 AM.