Andrews cams 48’s or 57’s

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10-26-2018, 07:30 PM

Paulie B.

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Andrews cams 48’s or 57’s

What’s good everyone? Lookin for some feedback...I have an 09 Road King with a 96”, I’m having big bore 103” kit installed along with a set of Andrews cams! I’m not sure what cams to use 48’s or 57’s. Any help or input would be greatly appreciated. Thanks in advance.

Last edited by Paulie B.; 10-26-2018 at 07:33 PM.

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10-26-2018, 07:44 PM

0ldhippie

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If you are stuck on Andrews, 57s would be my choice for a 103. Especially if ya bump the compression up to 10-10.2.

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10-26-2018, 08:20 PM

sgnden

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Quote:

Originally Posted by 0ldhippie

If you are stuck on Andrews, 57s would be my choice for a 103. Especially if ya bump the compression up to 10-10.2.

I did Andrews 57 cams on my '09 RK and was VERY happy with the result!!

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10-26-2018, 08:31 PM

Longridertx

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If you are doing a big bore kit you have the opportunity to get the heads worked and set the compression for the cam you choose. Considering that I would go with the 57.

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10-26-2018, 09:59 PM

Paulie B.

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Quote:

Originally Posted by sgnden

I did Andrews 57 cams on my '09 RK and was VERY happy with the result!!

Did you do anything with the heads or leave them stock?

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10-26-2018, 10:03 PM

langwilliams

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sgnden is it stock compression? I'm considering the 57's, 48's an the CR 570's

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10-27-2018, 12:42 AM

KumaRide

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57's with mufflers that create some back pressure.ie Fullsac 1.75", Kury Crusher Mellows,Fullsac 2"

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10-27-2018, 06:41 AM

2013_FLHTK

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Quote:

Originally Posted by Paulie B.

Are you installing a set of take off cylinders and pistons and nothing more?

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10-27-2018, 06:55 AM

sgnden

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Quote:

Originally Posted by Paulie B.

Did you do anything with the heads or leave them stock?

Mine was done by a guy who was considerd the best tuner in the area at the time. Stock heads, Rinehart duals, TTI, ac, but I don't recall everything he did other than when I saw the Dyno printout, I was impressed and the thing ran great. Sorry I don't have better technical information.

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10-27-2018, 10:46 AM

rhuff

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If you are limiting yourself to these two choices in a 103" and leaving the compression around 9.8.... the 48 all day. But, since you can easily swap in a HG .030 I would maybe do 57. Like another person said, the 57 will like 10.1 or a bit more.

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