How to get 12-15% better fuel economy without any costs :) :)
08-15-2018, 06:04 PM
#1
Gold Member
Gold MemberThread Starter
How to get 12-15% better fuel economy without any costs :) :)
Hi,
I experienced something weird the other day...
I have a Phantom 25 with a 400R. Last week I removed the vent plugs on my Max5 25 picth propeller. They are as we all know meant to give better holeshot. However, they also add a little more slip through the rpms.
I lost some speed between 2,000-3,000. Between 4,000-5,000 rpms, the speed loss was maybe 0,5 - 1 mph. However, I got 150 rpms on top and got the magic 7,000 plus rpms on my 400R. The engine need 7,000 rpms to give full power, so its a win win situation. The top speed increased from 86,7 mph to 87,7 mph at 7,020 rpms.
The surprise came in the fuel consumption department. Before the engine consumed consistent 11 gallons per our at 4,000 rpms. Top speed was 50 mph. Now the engine used 9,6 gallon at 4,000 rpms. Speed 49,5 mph ... At 3,500 rpms the engine used 7 gallon and speed 43 mph. Amazing results ....
Worth a try !
Cheeers, Toffen
I experienced something weird the other day...
I have a Phantom 25 with a 400R. Last week I removed the vent plugs on my Max5 25 picth propeller. They are as we all know meant to give better holeshot. However, they also add a little more slip through the rpms.
I lost some speed between 2,000-3,000. Between 4,000-5,000 rpms, the speed loss was maybe 0,5 - 1 mph. However, I got 150 rpms on top and got the magic 7,000 plus rpms on my 400R. The engine need 7,000 rpms to give full power, so its a win win situation. The top speed increased from 86,7 mph to 87,7 mph at 7,020 rpms.
The surprise came in the fuel consumption department. Before the engine consumed consistent 11 gallons per our at 4,000 rpms. Top speed was 50 mph. Now the engine used 9,6 gallon at 4,000 rpms. Speed 49,5 mph ... At 3,500 rpms the engine used 7 gallon and speed 43 mph. Amazing results ....
Worth a try !
Cheeers, Toffen
