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DarkHorse

Discussion in 'Vendor Feedback' started by JohnnyBiker, Sep 24, 2012.

  1. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Has anyone here used DarkHorse? If so, what was your opinion of their work?
  2. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Djl

    the following is an email that I jsut recieved from DarkHorse.... Thoughts???


    A little hard to tell at this point in all honesty, Run-outs at each end of your crank may help in the decision. How do you ride it? Added compression is always a little harder on lower end so I do not believe it would be wrong to blueprint at a minimum with all new bearings.

    01' have traditionally been a good motor, but you also do not want to get to this point in your motor build and then cut a corner on the foundation of the build. I could not tell you if you HAVE to do anything to the lower end until you get a little farther in the project, but if you are choosing to replace all bearings in the motor it is relatively inexpensive to do everything correctly and verify crank also.


    Basically what I am getting out of this is that he thinks that it isn't really a bad idea to freshen things up, but not necessarilay necessary..
  3. cardboard

    cardboard Well-Known Member

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    Think if I remember his name right, John at Darkhorse is a very good dude and does good work
  4. cardboard

    cardboard Well-Known Member

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  5. cardboard

    cardboard Well-Known Member

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    This dude turns motors up about as fast as you want to turn them.
    He also does cranks.

    Services
  6. JohnnyBiker

    JohnnyBiker Well-Known Member

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    All machining is going to be done by Prodrag1320. I will do the assembly of the engine. I have decided to leave the cases together, check runout, if bad then split. In all honesty, I am not worried that there is a problem with bearings and or crank. Looking at it from a preventative maintenance view.
  7. cardboard

    cardboard Well-Known Member

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    If I was you. Please do not get me wrong.
    Since you are doing he crank.

    Does prodrag not balance cranks ?

    I would have prodrag to put the crank bearings in it and all

    If you don't do the timeken bearings right, everything you have done will go to hell.
    I would get prodrag to build the whole engine for you.
    Would be a much longer lasting motor.

    And whey I say this I mean it.
    Trust me dude.
    If I'm wrong ask Prodrag.
  8. cardboard

    cardboard Well-Known Member

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    I would call a HD dealer near you and ask what it cost to ship your bike to a HD dealer where Prodrag is.
    He can do the engine and tune it and you can have it shipped back.


    If you was just doing the jugs and all I wouldn't say this.
    But it is a lot of work. And takes a lot of tools.
  9. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Read the post right about your quoted posted in this post.......:D I am not doing the crank, I decided against it...:D I have a lot of tools..
  10. hotroadking

    hotroadking Super Moderator Staff Member

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    Unless you are building a tq monster or
    you have runout issues leave the crank alone
    and the bottom end in the frame.

    If you are going that far then have the cases bored
    and drop in SNS 116 flywheels and buy the pistons
    and cylinders from SNS, have Kirby do the heads,
    drop on a Kuryakyn 57mm tb and get it tuned.


    Darkhorse is very good...

    PD will do a good job with the engine
  11. JohnnyBiker

    JohnnyBiker Well-Known Member

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    Can't do the throttle body....little late to the party???:rolleyes:
  12. hotroadking

    hotroadking Super Moderator Staff Member

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    I forget it's carb right?

    Then get a cv44 intake and cv44 carb to increase the flow
    so the heads and cyl can go to max potential. Too small a carb
    and it wont matter what you do to the rest as it will choke it off..
  13. HarleysLR

    HarleysLR Active Member

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    JB
    I just had Darkhorse do the crank for my 103 build, they did a great job and the turn around time was great. They custom built and balanced a stroker crank for my engine. The run out was minimal, well with in spec. I am still using the modified CV 40. I also added a SE 6 speed tranny gear set that fits in the stock tranny case. I've only had it back together a week and have about 200 miles on it, I know it'll pull 90 mph in 4th gear. I put Andrews 21G cams in. They kick in at about 1500 - 1700 rpm and pull through 5000 to 5200 rpm. I haven't opened it up yet in 6th gear but a 2800 rpm i'm doing a little over 80 mph.
    Eveything in the motor is new and it sure will make ya smile when you're riding it.
    I'll put it on the dyno sometime with in the next couple of months to see what we have for hp and torque.
  14. JohnnyBiker

    JohnnyBiker Well-Known Member

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    What caused you to do the crank? A PM type thing or was there some issue that forced you to do it? I actually was talking to a friend last night and he had suggested the SE 6 as well. Not in my budget for now. If you would, could you pm me what this cost you? Or if you want post it here, up to you. Again I really don't think that there is an issue with my crank. I was looking at it from a preventative maintenance stand point since I will be so close to the crank anyways. Stroking it at this point is pretty much out of the question as I have already bought pistons. If I stroke it I will have to buy new pistons because the pin placement will be different, then new rods, then have to go through the case and replace bearings and so on. Nice to see you on line again. :cool:
  15. cardboard

    cardboard Well-Known Member

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    Its fixing to be Christmas time. What else would you want for Christmas.
    Got a buddy that has had built 2 103 motors. 1 107 motor. 1 124 motor. 1 117cu motor.
    He said out of all the motors, The 107 was about the best motor he's ever had built.

    Crank bearings are cheap dude. I'd try to get them to exchange the pistons.
    Pistons ain't that much. Try to sell them.
    After you are threw, your gonna wished you had of gone ahead and done it.
  16. cardboard

    cardboard Well-Known Member

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    Rev performance does good work and they probably got the best price

    Twin Cam Crankshaft Assemblies
  17. cardboard

    cardboard Well-Known Member

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