2014 cams

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Oct 21, 2013 | 04:58 AM

#11

jus2anoyu

Outstanding HDF Member

Joined: Aug 2008

Posts: 2,090

Likes: 7

Keep in mind that unless the catalog specifies 'for off road or race use only' it's going to be an epa compliant cam. As someone else stated, many better choices out there.

Oct 21, 2013 | 05:18 AM

#12

Seasoned HDF Member

Joined: Jan 2006

Posts: 11,463

Likes: 2,990

From: Charleston, SC

Quote:

Originally Posted by Hammz

EPA cams are those that have been approved & certified by the EPA as meeting the emissions certification process for the vehicle they are installed in for sale to the public. It's not a spec or part of the cam(s), but rather the entire part itself. It's all spelled out in Part 49, CFR.

I've heard that before but never read it. I figured it wasn't a specific part on the cam but how the cam performed emissions wise as part of the entire engine or something. Still I was wondering what attribute these EPA cams have that make them EPA compliant.

Quote:

Originally Posted by bklynbob

Generally little or no overlap.

Thanks! Closest to an answer I've ever heard so far.
So overlapping. I wonder how that affects emissions. I also remember someone stating that Noise was part of it and high lift cams may cause more chatter or something so EPA cams might be lower lift for that reason. I dunno. Just trying to understand it all.

For the OP: I was thinking of trying to get a set of 2014 take offs. You know they will be cheap and probably perform better than 255s?

lp

Last edited by lp; Oct 21, 2013 at 05:26 AM.

Oct 21, 2013 | 05:45 AM

#13

MNPGRider

Seasoned HDF Member

Joined: Jul 2007

Posts: 6,336

Likes: 67

From: SW Minnesota

Overlap affects emissions by allowing fresh intake fuel to possibly be drawn through the cylinder and into the still open exhaust valve port. The benefit of overlap is that the still open exhaust valve helps to draw in the fresh intake air.

I believe the 255 closed the intake valve at 25 degrees after BDC. If that is true, they will build more cylinder pressure than the stock cams shown in the diagram,which closes the intake at 30 degrees after BDC.

Last edited by MNPGRider; Oct 21, 2013 at 05:48 AM.

Oct 21, 2013 | 05:51 AM

#14

BlackSpecial

Road Captain

Joined: Jun 2007

Posts: 547

Likes: 2

From: Oregon

Quote:

Originally Posted by lp

...............
For the OP: I was thinking of trying to get a set of 2014 take offs. You know they will be cheap and probably perform better than 255s?

lp

I'll have some available in the spring.

Oct 21, 2013 | 06:41 AM

#15

richie

Cruiser

Joined: May 2007

Posts: 153

Likes: 0

From: western mass.

Quote:

Originally Posted by Hammz

They are CLOSE to SE255's but are not 255's. Different part number.

Does anyone know the what the new part no of the 2014 cams would be ? Thanks

Oct 21, 2013 | 08:31 AM

#16

jmcdermit

Tourer

Joined: Aug 2013

Posts: 386

Likes: 1

From: Houston, OH

Quote:

Originally Posted by mstngjoe

I'll have some available in the spring.

Yeah

ME TOO

Oct 21, 2013 | 08:57 AM

#17

0ldhippie

Ultimate HDF Member

Joined: Mar 2012

Posts: 6,129

Likes: 143

From: Santa Cruz

I sure wouldn't waste my time switching cams for the new ones (or even 255s). There are so many good choices out there will actually make a real noticeable improvement in performance it's just not worth my time playing with stock cams..

Oct 21, 2013 | 09:08 AM

#18

Seasoned HDF Member

Joined: Jan 2006

Posts: 11,463

Likes: 2,990

From: Charleston, SC

Quote:

Originally Posted by 0ldhippie

Yeah I know but so many people report great results with 255s and out of the box performance of the 2014s that I'm willing to give these a try.
I have an 09 so it might worth the whole 100 bucks these cams will probably be selling at.

I have two sets of 255s with install kits on the shelf that I never put in.

lp