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DA170 Pipe Recommendations

Discussion in 'Gas Engines' started by scruffmeister, Apr 23, 2016.

  1. Hi all, I'd appreciate some advice. Am getting ready to put together my first "40%-er". Plan is to use a DA170 on pipes, but the question is - which pipes? The ones I'm considering are really RE3 vs KS1090 although I'd happily hear other good options too. Can anyone share any experiences please?
  2. Cant go wrong with either.
    stangflyer likes this.
  3. @Bunky.F.Knuckle after posting this question, I did some further reading on other forums and there seemed to be a fair few folks suggesting the RE3s weren't bringing the best out of the engine. Have you run both types on the DA170, as I would be interested to hear how they actually compare head-to-head in flight?
    Last edited: Apr 24, 2016
  4. Never flown a DA 170. If you want serious kick in the pants, the KS 1090s are it. This is what I have seen in person.
    scruffmeister likes this.
  5. Dan767

    Dan767 70cc twin V2

    I have a DA170 in my PAU 42% Extra with RE 3's. If I were to do it again, either KS 1090's or MTW TD115K canisters. If you don't have or can't get the header length long enough, the RE3's will be peaky in a small area, which means a need for a throttle curve. RE3's are also prone to clogging over time.
    scruffmeister likes this.

  6. jamesrxx951

    jamesrxx951 100cc

    After using RE3 and Planebender smooth pipes I will never go with RE3s again. The smooth pipes are just that. Great top end power with a much smoother transition.
    scruffmeister likes this.
  7. Thanks @jamesrxx951, it's expensive to get the Planebender pipes to UK unfortunately otherwise I'd give them a try as have heard great things.
  8. Robotech

    Robotech 70cc twin V2

    I've been running a DA170 with RE3s and a 14" headers for over 1200 flights. Amazing power over the stock exhaust and smooth transition. I guess I'm just lucky after reading this thread.
  9. Dirt

    Dirt 50cc

    Robert, have you had to clean out the RE3s?
  10. Silver Fox

    Silver Fox 50cc

    When I flew with a DA170, I had originally used a KS1090 set of pipes, complete with the KS soft mounts. The mounts were secure and did not "crimp" the mufflers as the silicone holders do.

    The engine was powerful with that combination, complete with a 29x12N 3 blade Mezjlik prop. I think I flew that combo for 2 years before going with the DA200 and Pro-Flo mufflers.

    I personally found that after 1 year of use, the 1090 developed a "rattle" inside the pipes, and also sounded louder.... Over that Winter, I pulled out the mufflers and was able to shake out pieces of metal that were actually the baffles breaking apart inside. I am not sure if I am the only person who experienced that "rattle" situation.

    I never tried the RE3's simply because my friend, who had the same airplanes and engine with the RE3's installed, definitely did not have the same performance I had and he eventually sold them and changed to the 1090 pipes instead.

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