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Author Topic: Andrews 57 High Comp Piston combo  (Read 1632 times)

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TZG15FLHXSE

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Andrews 57 High Comp Piston combo
« on: April 10, 2017, 12:26:58 PM »
Hello everyone. So I have an Andrews 57 on order for my 2015 FLHXSE. Since I'm opening her up I'm thinking of replacing the pistons with the SE10.5:1.

Bigboyz puts the combo at 10.97:1 static corrected to 10.19:1 with CCC at 216.9 stock head gasket.

Or leave the pistons and replace the head gasket with Cometic .30 which makes static 9.97:1 corrected to 9.27:1 with
CCC 192.3

Labor isn't a factor I'm doing the work. Tuned with SE Pro Tuner, Rush true duals with 2" Big Louie slip-ons.
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johnsachs

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Re: Andrews 57 High Comp Piston combo
« Reply #1 on: April 10, 2017, 06:50:17 PM »
Imo, your engine will have some PMS issues with the higher compression pistons. >:(
I would clip the heads .010", use .030" head gaskets, and call it a day.
John
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Mr D

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Re: Andrews 57 High Comp Piston combo
« Reply #2 on: April 10, 2017, 10:00:52 PM »
Quote from: johnsachs on April 10, 2017, 06:50:17 PM
Imo, your engine will have some PMS issues with the higher compression pistons. >:(
I would clip the heads .010", use .030" head gaskets, and call it a day.
John

& bolt in a 660SM in liu of the 57, IMO
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2014 FLHRSE6 Orange/Black
2012 FLHXSE3 Ruby/Typhoon [Sold]
2007 SEUC2 Red/Blk [Sold]
2006 SEUC Haze/Black [Sold]
2005 SEEG Yellow [Sold]
2003 VRSCA [Sold]
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HD Street Performance

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Re: Andrews 57 High Comp Piston combo
« Reply #3 on: April 15, 2017, 09:48:22 AM »
That cam is right at home at 10.3:1, not much more
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TZG15FLHXSE

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Re: Andrews 57 High Comp Piston combo
« Reply #4 on: April 15, 2017, 09:06:36 PM »
Yes I did not Change the pistons.


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TZG15FLHXSE

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Re: Andrews 57 High Comp Piston combo
« Reply #5 on: September 02, 2017, 03:50:40 PM »
Nope I tried the 57 cam and wasn't happy with the performance. I pulled it out put the SE 259 cam and 10.5:1 pistons. Huge improvement just as I was accustomed with my 103. After 6 months I installed the 58mm TB and red band injectors. Wow even more power and the throttle response is instant and scary! Feels like a sport bike on the straight away. I'm tuning it with my SE Pro tuner. I've only done 2 runs so I have a lot more left to pull out of her.


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