Looking to get some input & expert help on cam selection for my 97 FLHT standard (EVO). I have done some reading in the archives & cam mfg. sites & it looks like some of this has been addressed before but not specific to the heavier bagger.
I am a fairly aggressive rider (well for a bagger rider anyhow) but also like to pop around at a decent low RPM pull & listen to the pipes talk. Almost always ride without a passenger.
In doing some research & talking to a few cyl head porting people it looks like my choices are going to be either the Andrews EV 13 or EV 27 (or equivalent specs) ..
I haven’t decided if I am pulling the cyl heads yet or not.. If I don’t pull the heads it will be the EV 13 for sure so that isn’t the question here.
I am probably going to pull the heads & get a good 5 angle valve job with a nice street porting to increase the mid range flow. I would really like to increase the compression (not exactly sure here so am asking for input from you all).. I was thinking of some where’s in the mid 9’s. (is that too high for an EVO bagger in the summer heat?)
If I go with mid 9’s (maybe 9.5:1) would the EV 13 cam be too much compression down low? If I go with 9.5:1 compression would that allow the EV 27 cam to pull good down low on my heavy bagger? I want to keep the stock pistons so will probably have the heads milled.
I do have a programmable ignition module (Daytona) so can taylor a custom ign. Advance curve if needed.
I guess I am looking for anybody that has been running similar cam specs to the EV 27 in a bagger or has set up that type of cam specs up for some of their customers.. Looking for any & all input on pros & cons of either the EV 13 or EV 27 cam in a heavy bike.. My Bagger is fairly stripped down but still has bags & a batwing on the front. I do cruise the freeways at 70-95 MPH so power into the wind is a concern. But I also pull long hills in the mid 90°F in mid summer..
Thanks for any input here…..JD
I am a fairly aggressive rider (well for a bagger rider anyhow) but also like to pop around at a decent low RPM pull & listen to the pipes talk. Almost always ride without a passenger.
In doing some research & talking to a few cyl head porting people it looks like my choices are going to be either the Andrews EV 13 or EV 27 (or equivalent specs) ..
I haven’t decided if I am pulling the cyl heads yet or not.. If I don’t pull the heads it will be the EV 13 for sure so that isn’t the question here.
I am probably going to pull the heads & get a good 5 angle valve job with a nice street porting to increase the mid range flow. I would really like to increase the compression (not exactly sure here so am asking for input from you all).. I was thinking of some where’s in the mid 9’s. (is that too high for an EVO bagger in the summer heat?)
If I go with mid 9’s (maybe 9.5:1) would the EV 13 cam be too much compression down low? If I go with 9.5:1 compression would that allow the EV 27 cam to pull good down low on my heavy bagger? I want to keep the stock pistons so will probably have the heads milled.
I do have a programmable ignition module (Daytona) so can taylor a custom ign. Advance curve if needed.
I guess I am looking for anybody that has been running similar cam specs to the EV 27 in a bagger or has set up that type of cam specs up for some of their customers.. Looking for any & all input on pros & cons of either the EV 13 or EV 27 cam in a heavy bike.. My Bagger is fairly stripped down but still has bags & a batwing on the front. I do cruise the freeways at 70-95 MPH so power into the wind is a concern. But I also pull long hills in the mid 90°F in mid summer..
Thanks for any input here…..JD
