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CVO Technical => Twin Cam => Topic started by: TZG15FLHXSE on April 10, 2017, 12:26:58 PM
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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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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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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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That cam is right at home at 10.3:1, not much more
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Yes I did not Change the pistons.
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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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