This engine has a different mounting pattern than Version 1 VVRC 40cc Twin engine. Please select option for mounting plate for Version 1 replacement if needed. Optional mounting plate will allow this engine to bolt on as a replacement for Version 1 VVRC 40cc Twin engine.
Spark Plug Size: 1/4x32
Displacement: 40.5 cc
Bore x Stroke: 32 x 27 mm
Carburetor: Genuine Walbro
Ignition: RCGF 4.8v-8.4v
Propeller: 21 x 8
Maximum Output: 4.6 hp / 7400 rpm
Speed Range: 1500 - 7000 rpm
Gas/Oil Mix Ratio: 32-40:1, 87 octane, recommended
Power Supply: 4.8 – 8.4 V
Weight with ignition and muffler: 46.00 oz
Weight without ignition and muffler: 37 oz
Distance from back plate to face of prop hub: 121mm (145mm with included standoffs
Distance from Cap to Cap is 7-7/8"
Based On 5 reviews.
Mine is instaled in a hanger 9 valiant .. tons of power runs great almost unlimited vertical with a 21x8 xoar. Sounds good idles good starts easy and fits in the cowl nicely. Has impressed a few people at the fild that fly with a da 85 ext... vvrc has excellent customer service from my limited expericence talking to them ... a good thing imo...
Great running engine, Just finished running it in on the test stand. Idles SMOOTH and after minor Carb adjustments, Its a WINNER!!!! Special Thanks to Tammy for hooking Me up with a New Header and Canister, Can't wait for SPRING to Fly it THANKS AGAIN VVRC Your the BEST!!!!!!
This VVRC/RCGF-40cc Twin Gas Engine 1/4-32 "Generation 2 has been a gas and go engine. After the first gallon of fuel, I've had to lean the needles a tad bit as the motor is beginning to wear in. This motor is easy to hand start and has run without issues since I installed in an Extreme Flight 78" Extra 300. I initially set the needles before the first flight. The break-in process is done in the air. The idle on this motor is very consistent. Overall, it's a very easy motor to tune. The transition from idle to full throttle is seamless and it's a very dependable. It pulls my 78" Extra 300 around like a rag doll. The Customer service at VVRC is amazing. So, you get the best of both worlds. A solid product and great Customer service.
You fixed my 40 twice for me last year. I have been sitting here thinking about that engine and just want to say thank you for what you do. The engine is running great now. I have almost 5 gals thru it this time with no hiccups and more power than it ever had. It is running so good that so many people ask what engine and I tell them they have to get one of these engines. My good friend got one of your new generation 40 and he really is liking that one also. My question is can you use version 2 exhaust on a generation 2 motor. His is way louder than mine and he wants to quiet it up a little. Anyway just wanted to let you know I really appreciate what you have done for my engine. I will always recommend VVRC.
I love my VVRC and I can’t tell you how excited I am that I’ll get to continue using it. Its really been one of my best engines I’ve owned. In all my flights I’ve only had it quit twice. One of those times is when I ran it out of gas.
Thanks again Tom!!