Twin cams definitely run hotter than Evo's

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  • Choco
    Choco
    4 years ago
    G'day all. Well I bit the bullet and about 7 weeks ago I sold my Evo Softail and picked up a 96 cube 2007 Heritage. Now the only dislike I have for the new bike is in traffic how hot it gets on my right leg from the heat coming off the rear cylinder. Now I knew twin cams run hotter but this heat even surprised me. This is my second twin cam many years ago I owned a 2001 Dyna Super Glide and yes I know they are two different bike's where the Softail has the oil tank placed compared to the Dyna but I can never remember a heat issue with the Super Glide. It's not a deal breaker for me I love my new bike it's like new with only just over 13,000 kms on it and yes that is the right kms but there is no doubt this bike bike runs a lot hotter than my old Evo cheers. 
  • micathia
    micathia
    4 years ago
    Quoting Choco on 09 Apr 2020 09:08 AM

    G'day all. Well I bit the bullet and about 7 weeks ago I sold my Evo Softail and picked up a 96 cube 2007 Heritage. Now the only dislike I have for the new bike is in traffic how hot it gets on my right leg from the heat coming off the rear cylinder. Now I knew twin cams run hotter but this heat even surprised me. This is my second twin cam many years ago I owned a 2001 Dyna Super Glide and yes I know they are two different bike's where the Softail has the oil tank placed compared to the Dyna but I can never remember a heat issue with the Super Glide. It's not a deal breaker for me I love my new bike it's like new with only just over 13,000 kms on it and yes that is the right kms but there is no doubt this bike bike runs a lot hotter than my old Evo cheers. 

    Yes, the bright side is it warm the balls on your way to her apartment. In the winter, it reduces the overall shrinking effect. In summer, it kills unwanted sperms, reducing sperm count, aka probability to get her pregnant. 
    It is by design, that's why Harley riders are bad boys while metric cruiser riders got married faster and sell their bikes, driving kids around in a second hand Toyota. Really different life paths its leading to. 

  • wello
    wello
    4 years ago
    Quoting Choco on 09 Apr 2020 09:08 AM

    G'day all. Well I bit the bullet and about 7 weeks ago I sold my Evo Softail and picked up a 96 cube 2007 Heritage. Now the only dislike I have for the new bike is in traffic how hot it gets on my right leg from the heat coming off the rear cylinder. Now I knew twin cams run hotter but this heat even surprised me. This is my second twin cam many years ago I owned a 2001 Dyna Super Glide and yes I know they are two different bike's where the Softail has the oil tank placed compared to the Dyna but I can never remember a heat issue with the Super Glide. It's not a deal breaker for me I love my new bike it's like new with only just over 13,000 kms on it and yes that is the right kms but there is no doubt this bike bike runs a lot hotter than my old Evo cheers. 

    pretty sure the m8,s are hotter still. : /
  • fatbat
    fatbat
    4 years ago
    I’ve had three twin cams being a 2007 softail, a 2013 tourer and a 2017 dyna. All definitely run hotter than my evo which is a softail. Among my twin cams, the softail felt hottest (probably the oil tank location). Twin cams run better and a bit cooler after a proper tune. They run pretty lean and hot out of the factory for emissions. Like said in the other post the m8 probably runs hotter again although I’ve never ridden one or had much to do with them. Still love my evo. 
  • FXDF08
    FXDF08
    4 years ago
    Agree 100%, however as said before, a bit more fuel into the tune and get rid of the cat in the exhaust... a fair bit cooler. But not like my 98 FXDL with pipes and rejetted. Than ran very nice, hot and cold. Or so I remember ??
  • Choco
    Choco
    4 years ago
    Quoting fatbat on 09 Apr 2020 10:06 AMedited: 09 Apr 2020 10:07 AM

    I’ve had three twin cams being a 2007 softail, a 2013 tourer and a 2017 dyna. All definitely run hotter than my evo which is a softail. Among my twin cams, the softail felt hottest (probably the oil tank location). Twin cams run better and a bit cooler after a proper tune. They run pretty lean and hot out of the factory for emissions. Like said in the other post the m8 probably runs hotter again although I’ve never ridden one or had much to do with them. Still love my evo. 

    Yep the Evo's are a great bike. One of the reasons I sold my Evo is it was getting a bit old and I am the first to admit when it comes to  major mechanical work I'm not the right person to do the work. Still love the Evo's and I hope I can have the same love affair with my new bike cheers. 
  • Choco
    Choco
    4 years ago
    Quoting FXDF08 on 09 Apr 2020 10:30 AM

    Agree 100%, however as said before, a bit more fuel into the tune and get rid of the cat in the exhaust... a fair bit cooler. But not like my 98 FXDL with pipes and rejetted. Than ran very nice, hot and cold. Or so I remember ??

    So just a quick question. Would fitting a good set of aftermarket pipes and tune could that take away some of the heat because the pipes no longer have the cat in them.
  • Krash Kinkade
    Krash Kinkade
    4 years ago
    I had a twin cam 2001 carb model from new. it did not run hot
  • fatbat
    fatbat
    4 years ago
    Quoting FXDF08 on 09 Apr 2020 10:30 AM

    Agree 100%, however as said before, a bit more fuel into the tune and get rid of the cat in the exhaust... a fair bit cooler. But not like my 98 FXDL with pipes and rejetted. Than ran very nice, hot and cold. Or so I remember ??

    Quoting Choco on 09 Apr 2020 11:38 AMedited: 09 Apr 2020 11:39 AM

    So just a quick question. Would fitting a good set of aftermarket pipes and tune could that take away some of the heat because the pipes no longer have the cat in them.

    Hi Choco I reckon that would go some ways to removing excess heat. 
  • Wideglider
    Wideglider
    4 years ago
    I ride an Evo Dyna, the heat is only just manageable. 
    But trying to satisfy us aging traditionalists by squeezing more & more power out of a super lean V-twin air cooled engine - more heat will result.
    What about buying one of those thigh heat deflectors, or buy a modern tech bike with that new fangled technology called water cooling!
  • tussuck
    tussuck
    4 years ago
    I dont know....I recon my old Evo is smoking hot!
  • brucefxdl
    brucefxdl
    4 years ago
    Quoting tussuck on 09 Apr 2020 09:40 PM

    I dont know....I recon my old Evo is smoking hot!

    smooth comment tussock,gotta love what ya ride.
  • Choco
    Choco
    4 years ago
    Quoting Wideglider on 09 Apr 2020 12:09 PMedited: 09 Apr 2020 12:30 PM

    I ride an Evo Dyna, the heat is only just manageable. 

    But trying to satisfy us aging traditionalists by squeezing more & more power out of a super lean V-twin air cooled engine - more heat will result.
    What about buying one of those thigh heat deflectors, or buy a modern tech bike with that new fangled technology called water cooling!

    Haha yes I was looking at a M8 since the bike I buy will be my last. But after losing $50,000 from my super because of this COVID-19 those plans went south. I am happy with the new bike and with only 13,000 kms on it I thought it was to good to say no to cheers. 
  • Choco
    Choco
    4 years ago
    Quoting FXDF08 on 09 Apr 2020 10:30 AM

    Agree 100%, however as said before, a bit more fuel into the tune and get rid of the cat in the exhaust... a fair bit cooler. But not like my 98 FXDL with pipes and rejetted. Than ran very nice, hot and cold. Or so I remember ??

    Quoting Choco on 09 Apr 2020 11:38 AMedited: 09 Apr 2020 11:39 AM

    So just a quick question. Would fitting a good set of aftermarket pipes and tune could that take away some of the heat because the pipes no longer have the cat in them.

    Quoting fatbat on 09 Apr 2020 12:07 PM

    Hi Choco I reckon that would go some ways to removing excess heat. 

    Thanks mate. After June when I turn 60 I can access some of my super. I was going to buy a M8 but after losing $50,000 because of this virus that became a no go. Anyway found this Heritage pretty happy with it so when June comes around I will still draw some money from my super and fit a good set of pipes and a good tuner cheers. 
  • Humbug
    Humbug
    4 years ago
    Quoting Choco on 09 Apr 2020 09:08 AM

    G'day all. Well I bit the bullet and about 7 weeks ago I sold my Evo Softail and picked up a 96 cube 2007 Heritage. Now the only dislike I have for the new bike is in traffic how hot it gets on my right leg from the heat coming off the rear cylinder. Now I knew twin cams run hotter but this heat even surprised me. This is my second twin cam many years ago I owned a 2001 Dyna Super Glide and yes I know they are two different bike's where the Softail has the oil tank placed compared to the Dyna but I can never remember a heat issue with the Super Glide. It's not a deal breaker for me I love my new bike it's like new with only just over 13,000 kms on it and yes that is the right kms but there is no doubt this bike bike runs a lot hotter than my old Evo cheers. 

    Quoting micathia on 09 Apr 2020 09:33 AM

    Yes, the bright side is it warm the balls on your way to her apartment. In the winter, it reduces the overall shrinking effect. In summer, it kills unwanted sperms, reducing sperm count, aka probability to get her pregnant. 

    It is by design, that's why Harley riders are bad boys while metric cruiser riders got married faster and sell their bikes, driving kids around in a second hand Toyota. Really different life paths its leading to. 

    Really like that ha ha
  • Krash Kinkade
    Krash Kinkade
    4 years ago
    Well even though my 2001 Dyna was carb & did not feel to me like it was running hot riding through Sydney traffic.
    It still managed to get me to Sydney International Dragway & down the quarter mile many many times in 11.2's with an easy 60ft & a trap speed of 121mph in forth gear @ 7,200rpm & still not be hot, & I road home.
    not trying to brag just saying, tune them right & twin cams can perform hard & run cool, mine was only a 95 cubic Inch ( same bore as the 103 cubic inch just shorter stroke )
    Maybe the longer strokes the latter twin cams use, & the higher piston speeds, causes more heat? but the EVO 80 cubic Inch ran a longer stroke & a much smaller bore.

  • dicko
    dicko
    4 years ago
    Quoting FXDF08 on 09 Apr 2020 10:30 AM

    Agree 100%, however as said before, a bit more fuel into the tune and get rid of the cat in the exhaust... a fair bit cooler. But not like my 98 FXDL with pipes and rejetted. Than ran very nice, hot and cold. Or so I remember ??

    Quoting Choco on 09 Apr 2020 11:38 AMedited: 09 Apr 2020 11:39 AM

    So just a quick question. Would fitting a good set of aftermarket pipes and tune could that take away some of the heat because the pipes no longer have the cat in them.

    Yep, My 2006 came stock with the cats in the muffler, and the new bikes had 3.91 injectors compared to 2005 model with 4.2 injectors, both bikes are 88 cubes with similar pipe design.
    My 2006 was very hot , so much that in the dark, the pipes glowed red. After removal of the cats (replaced mufflers rush slip ons with no cat) sceamin eagle air cleaner with K&N filter, and a new map in the ECM ( I have the pro tuner) it is still "warm" but not as hot as it was. All this is because of EPA emission standards, and the attempts by manufactuirers to meet them.
  • FXDF08
    FXDF08
    4 years ago
    Choco, exactly what Dickson just said above. That’s been my experience with 103 twin cams (FLTRX and FXDL). The RoadGlide had the cat removed from the header pipes, massive improvement, but that included cams and good tune. My 2016 Lowrider has Bassani RR, a/c and SE Supertuner canned tune. I don’t notice heat as an issue either?
    You might even get a good second hand set of pipes and a fuel management system That won’t break the bank! If not, just ride and enjoy. They prefer the open road and not city traffic!
  • Neale
    Neale
    4 years ago
    My 08 Electra Glide has a 106 s&s kit with 585 cams, dyno tuned and blah blah blah.
    It’s a shocker to ride on a hot summmers day.
    No avoiding it, you just have to stay out of traffic and stay on the open road to beat the heat.
  • fatbat
    fatbat
    4 years ago
    Same Neale as my s&s 107 twin cam with the same 585 cams. It hated traffic in summer and on the really hot summer days even out of traffic it pinged under load too. Had it tuned a few times to remedy this with each time having some timing changed. 
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