Geared Cams

  • carcano
    carcano
    7 years ago

    Hi hopeing i can get some advice on cams. I have a 2012 Switchback i'm thinking of putting in Geared Cams with ajustable push rods. The bike has stock 2into2 headers on it off a different model Dyna and slip on S&S mufflers SE aircleaner SE race tuner and thats it no other mods. Putting the cams in to get away from the chain tensoiner set up. Can anyone recommend cam size and manufacturer for this set up. Any info appreciated. The bike was tuned for the above but pings in top gear when you pull it on at !00 klm per hour or 120klm per hour can;t hear pinging above 130 klm. and does not happen all the time it does it regardlless of the ambient tempreture. Cheers

  • fatbat
    fatbat
    7 years ago
    Re cam choice need more details of what style riding you do.
    Re cam type, need to know if you can even run gear type with your crank run out
    Cam chain set up is not bad from 2006/7 onwards just needs checking at high mileage intervals
  • fatslim
    fatslim
    7 years ago

    Stay with chain cams, more variety and far cheaper.
    Late chains don't wear appreciably to concern yourself.
    Geared cams need less than 0.003" pinion runout. Your FLD might or might not be within that range.

    If you're trying to "get it on" with full throttle @ 100kph or even 120kph, then yes, it is likely to ping its tits off.
    Fairly brutal treatment on such a high geared bike.
    Try hitting it hard from 3,000rpm in 4th or 5th and it should put a smile on your dial, that's with new cams.

    You'd need to provide more info on what type and style of riding you do to suggest a particular camshaft.
    A decent drop in cam for your engine and type of bike would be the Andrews 48H. No need for adjustable pushrods.
    You'd need re-tuning. Did you buy a tuner, or only a license for one of the various systems available.
    Hope this info helps and encourages you to research further. There's tons of info out there, it's all been done before.
     

  • Ando
    Ando
    7 years ago
    If ya go the geardrive route can I get the Inner and out chain and tensioners as well as the sprockets, I am doing an hydraulic conversion on an early twin cam
  • carcano
    carcano
    7 years ago
    Thanks for the info blokes had a yarn with the local bloke today told me not to bother with the cams said he would do it if i wanted but probably a waste of money. Said the pinging was the timing going full on when i screw it open at the low revs. i recon it's me being slack and not up to speed with new technology. going to take it and get the se tuner updated and take a bit more notice of my surroundings. my main riding is on the highway and generally not slow. thank you all for your input much appreciated.
  • Daggs
    Daggs
    7 years ago
    keep your revs up. if you want to "screw it on" at low revs (in a high gear I'm assuming?) drop it back a couple of gears. don't be scared to rev it
  • daddyracer56
    daddyracer56
    7 years ago

    stock polution cams are crap  a great cam choice will transform your bike  stuff da epa

     

  • Methuselah
    Methuselah
    7 years ago
    Yep, a good cam choice and dyno tune will transform your bike as daddyracer says. As for geared cams as everybody else says, you need minimum run out and they can be quite noisy if you do have near the maximum allowable runout. Daggs is right, drop back the gears a bit. The switchback is not a really heavy bike so you may be better off going for mid range cams rather than strictly torque only cams like the SE255's. They are great down low, but run out of puff up high. Make sure you change the inner cam bearings even if you have low kilometres. You won't regret a cam change and dyno tune, well worth the money.
  • Steve L
    Steve L
    7 years ago
    as above mate cams and a tune really make a difference. I had my old 08 FLSTC done and was very happy with the outcome. I also already had the exhaust and air filter done before the cams. It only went up about 10hp and about the same in torque but the rideability of the bike was dramatic. I also ran a chain driven cam.
  • Daggs
    Daggs
    7 years ago
    some purely bolt in cams are ok but a bump in compression would help along with the cams
  • Steve L
    Steve L
    7 years ago
    Depends on how it's setup, mine happily cruises along in 5th (top gear) at 100 or even at 80. But if doing 80 I do drop back to 4th if I need some speed.
  • chriso
    chriso
    7 years ago

     

    The original poster is talking about late model twin cam with 6 speed  which I don't believe should be in top gear at 100 especially "twisting it on".

    Early 5 speed twinky is a diffrent story

  • Daggs
    Daggs
    7 years ago

    To me, mine is nearly laboring in 6th between 100 to 115(ish)
    120 and up is fine but below that I'm often going back to 5th.
    And although mine will pull from those speeds in 6th (rolling it on) as it has very strong torque, I'll usually throw it back at least one gear, if I want very quick acceleration I'll go back to 4th