DA85 on pipe! Results please.

[dbcaster]

O.k., after reading this thread it sounds like the low to mid range is good with the pipe. No my decision is do I need the pipe or not. I am building a Jtec 2.7M Extra. One of the planes built with a DA 100 and canisters and smoke came in at 25.5 lbs. I figure if I do a DA 85 with a pipe it should be at 24 lbs. or less. With a wrap around pitts it should be in the 23 lb. range. Either way it will be a power house. I did have a different plane setup with a wrap around pitts and it was extremely loud. So the question is, is it worth the trouble of installing and flying with a tuned pipe? Or should I just stick with the wrap around pitts with such a light airframe?

[rdb127]

Here is a Pacific Planes 102 incher at 23lb and small change. Less than a gallon on a gurgling DA-85. Wrap around pitts and Vess 26A at 6700.

To me flying a piped setup is different and takes getting use to when 3D'ing. Not bad, just different feel.

YouTube - Pacific Planes 35% Extra on DA-85

[Flatlandman]

On my 23 pound 10 oz 33% extra 300 with 32 oz of fuel the da85 and a 27x10th pulls the crap out of it. IMO power wise the pitts is best for a plane ~24 pounds or less. The 25 pound area is a gray area of pitts and pipe but then higher is a pipe for sure.

[dbcaster]

I had the 85 in a 102" Extra that was 23 lbs. and it was crazy power. It had a wrap around pitts as well. The only thing I was thinking was since I need to buy a new system would it be better to get the pipe anyway. I thought that it may quiet things down a bit also. It does sound like the wrap around would be a much easier setup though.

[Altavillan]

Hey DB. Mack's is right in Sac. You can take your plane in and he will build you a header on the spot thats a perfect fit. Then you can get any pipe/tuned pipe you want. Personaly my opinion is the Bud Bottle mufflers are as good or better than any pipe/cann available. While in Sac. a visit to RC Country is a must, and they are about 2 miles from Mack's.

[dbcaster]

Alt,
How would I get in touch with Mack? I did see the thread on the bud bottle cans. However, I figured they may be on the small side for an 85cc engine??

[Rolling Thunder]

for those that are using the KS 95 pipe, has anyone tried a header longer then stock? Should this help the pipe from coming on so hard at 1/4 throttle?

[sprice50]

	Quote: Originally Posted by Rolling Thunder
	for those that are using the KS 95 pipe, has anyone tried a header longer then stock? Should this help the pipe from coming on so hard at 1/4 throttle?

To clarify for others - the Ks95 is a can and KS recommends up to 95cc for this; however, the KS 1090 pipe is for up to 125cc engines. As the KS1090 works flawlessly with no 'coming on pipe' issues I would think a bigger KS can like the 106 would work as KS says this will work for up to 120cc engines so more in line with the 1090. Remember europe is more concerned with noise.

My DA85/KS1090/25mm double bend flex header/ is very different than my friends ZDZ80RVJ/AMT105. Mine is strong throughout the range and at each throttle click while his comes on pipe noticeably which makes 3Ding his harder

All I have ever done to mine is install the stock setup from DA and lean my low needle to 1 turn on the first run. Nothing since then and crazy power.

DB - the pipe setup is quiet except for prop ripping! If noise is a consideration, extra $200 for the pipe setup is not and issue, and you want power for a bigger, heavier bird in the future go KS1090 pipe1 If not then at 24lbs your setup would have plenty power on stock muff. All I know is my 26lb setup accelerates like crazy on uplines.

My wife took a few short clips this weekend. I'm swamped with work till about 10 each night, but will try post a couple clips over the next few nights. First static, then in air. Sorry about the delay!

[sprice50]

Ok so my laptop crashed twice uploading the video, so I have to post tomorrow. Will try post a short flight video too showing a little 3D and climbout. DB - will give you a good idea of sound too.

[sprice50]

Throttle response! Mej 28x10. 13 flights old. One of my last flights was 22mins on a 32oz tank and I still had 15% left!

YouTube - DA85 and KS1090 pipe

[krayzc]

good deal yeah i dropped my 32 oz in place of a 24 and maybe should have put a 20 oz in there

[Flatlandman]

I'm running a 32 oz tank also and I already have had a dead stick to running out of gas. I guess I just love to fly long flights lol and should set a timer for 20 min.