Compression?
Elite HDF Member
Joined: Mar 2005
Posts: 4,092
Likes: 1
From: St. Petersburg Florida
RE: Compression?
I am thinking about going up to a 10:1 compression ratio on my rebuild. I will be running Andrews y cams, S&S rods on a stock stroke, and .30 overbore on this build. Will the higher compression ratio give me any more power with this build?
ORIGINAL: glide
The 72 xlh was rated at 61 HP and had a 9:1 compression ratio. That should give you some decent engine compression if all is well. Have you checked your jetting and point gap along with timing yet?
The 72 xlh was rated at 61 HP and had a 9:1 compression ratio. That should give you some decent engine compression if all is well. Have you checked your jetting and point gap along with timing yet?
Tourer
Joined: Jun 2006
Posts: 459
Likes: 1
From: Florida
RE: Compression?
ORIGINAL: bdavis
I hit fourth gear there doesn't seem to be much power left. This is a 1972 XLH. Years ago I had a 1976 Sportster and when I hit fourth there was plenty of power/acceleration left. This is what led me to check the compression in the first place.
Thanks for all your help.
Barry
I hit fourth gear there doesn't seem to be much power left. This is a 1972 XLH. Years ago I had a 1976 Sportster and when I hit fourth there was plenty of power/acceleration left. This is what led me to check the compression in the first place.
Thanks for all your help.
Barry
Road Warrior
Joined: Feb 2006
Posts: 1,281
Likes: 8
From:
RE: Compression?
ORIGINAL: SKJOLD
I am thinking about going up to a 10:1 compression ratio on my rebuild. I will be running Andrews y cams, S&S rods on a stock stroke, and .30 overbore on this build. Will the higher compression ratio give me any more power with this build?
I am thinking about going up to a 10:1 compression ratio on my rebuild. I will be running Andrews y cams, S&S rods on a stock stroke, and .30 overbore on this build. Will the higher compression ratio give me any more power with this build?
ORIGINAL: glide
The 72 xlh was rated at 61 HP and had a 9:1 compression ratio. That should give you some decent engine compression if all is well. Have you checked your jetting and point gap along with timing yet?
The 72 xlh was rated at 61 HP and had a 9:1 compression ratio. That should give you some decent engine compression if all is well. Have you checked your jetting and point gap along with timing yet?
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