stunthanger.com
General control line discussion => Open Forum => Topic started by: Mike_Ostella on April 18, 2013, 07:47:39 PM
-
Has anyone noticed a difference in the Powermaster fuel that comes in the new cans marked VP Powermaster?
We have noticed that a batch of 10 22 is behaving more like 20 22.
Enough oil, but too much power and lower mileage. Old fuel ran 7 minutes, new fuel runs 5 minutes.
The new fuel doesn't have a batch number, just a part number 6218 13212
Had some old 10 22, put it in the plane and everything was good again.
This fuel is behaving like it has a lot more nitro than 10%. Next step may be to mix it with some 5% or some FAI fuel and see if it can be re blended into useable fuel.
Anyone else?????
Mike Ostella on behalf of Doug Bennedetti
-
Has anyone noticed a difference in the Powermaster fuel that comes in the new cans marked VP Powermaster?
We have noticed that a batch of 10 22 is behaving more like 20 22.
Enough oil, but too much power and lower mileage. Old fuel ran 7 minutes, new fuel runs 5 minutes.
The new fuel doesn't have a batch number, just a part number 6218 13212
Had some old 10 22, put it in the plane and everything was good again.
This fuel is behaving like it has a lot more nitro than 10%. Next step may be to mix it with some 5% or some FAI fuel and see if it can be re blended into useable fuel.
Anyone else?????
Mike Ostella on behalf of Doug Bennedetti
It's behaving like fuel with more than 7% nitro, which it was before VP.
David and I found the same thing, and he talked to the people at VP, we are now getting the full 10% and it runs about the same as SIG 10%. You might also note that the volume of the can is actually a full gallon instead of maybe 110 ounces, too.
Brett
-
Hi Brett
Doug and I thank you for the feedback.
Mike Ostella
-
Crap. Now I've got to reset all my needles and figure new the amounts to fill up.
-
Or just buy some 5% and mix with your 10% 50/50 and you'll have 7.5% and can leave your needle and amounts alone.
I've run Sig in my PA's and always have mixed that way. 5% in winter 7.5% most of the rest of the year and rarely 10% on the worst dog days of summer.
EricV
-
I noticed similiar with the new RO Jett blend. I think regular 5/18 would be more than enough nitro for my PA or DS motors. The new 10% had my PA surging like mad when I tried it.