Varad

Wouldnt this be the most awesome thing! You buy an os .61 FX engine, convert it somehow good enough for rc application, and put it in a 1/10 or 1/8 scale touring car. Does anyone think it would work?? This should be a "Kerry Project" or something. Think about it... The schumacher has a .21 in a 1/10 scale layout and that flies to 80mph. This would be awesome. Can someone post stuff on extreme overpowered rc cars and their handling, speed, acually able to manuever, etc.??
Thanks

Natesully

I think this wouldn't work as well as people think it would. .60s have more power, but don't rev as high and are heavier. Also, car engines are usually pushed to the limit, while plane engines are usually ringed and have conservative porting (there are always exceptions, of course.)

If something large were to be put in a car, it would also need to be designed for that purpose, especially in terms of heat dissipation.

This would be fun to try-especially with a 4-stroke.

Varad

Yeah but if you have the money to do that, i bet you could easily modify the motor.

Tigger N. Bennie

I've seen 9 hp engines advertised for 1/4 scale cars and they already do 50-60 mph with a 2 hp engine. There is no way I could control a 9 hp engine even on a 1/4 scale track and the only way I could probably take advantage of all the power a 9 hp engine would have to offer would be on a straight away. The same would hold true, at least for me, on a smaller scale track with a .60+ engine. My mbX5 is hard enough for me to keep under wraps with its RX21P5.

But if you want something that big, you could always get a EK-4 with the helicopter engine. That thing will climb from the videos I have seen which left the T-Maxx and the Savage in the dust--actually, neither the T-Maxx nor the Savage could climb out of the pit.

Varad

Really. That sounds awesome. I wasnt going to do a project with a .60 in a car or something but i was just wondering what it would be like. The Schumacher Fusion .21 is a 1/10 scale chassis with a thunder tiger .21 on it and it claims 80+ MPH with the optional gearing! And its only around $450 rtr. On wild hobbies, Kerry did a review of it if anyone is interested. Schumachers website is www.racing-cars.com.

Tigger N. Bennie

Here is a link to an older article regarding the Thunder Tiger EK4 S2 monster truck with a Thunder Tiger Pro .70 helicopter engine.

http://www.rcnitro.com/articles/ttek4s2sport.asp
http://www.rcnitro.com/information/nitro_news.asp
http://www.rcmodels.com/rc-ttr-6216-f.html

Varad

Thanks man. That does still sound really cool though.

bigjdubb

a .60 would require some major gearing changes. The car would prolly handle like crap (tall and heavy engine) and even with the smallest spur gear you could find it would still be hard to "hook up". It would do some bad ass donuts though. Allot of the reason the Schumacher makes it to 80mph is because of the 3 speed. You could make the car faster with allot less engine. An 1/8th scale with the Trinity .27 and a 3 speed would really rip.

unique-rc

I put a K&B .61 in an original RC10. It took a lot of custom work maching parts and a lot of pre-work with CAD drawings. As far as the gearing, 1.3 HP @ 13000 RPM creates the same torque as 2.6 HP @ 26000 RPM so the gear ratio is about 1/2 that of a normal nitro car.

My car is lowered, but I don't think it could be considered a touring car. The motor sits as low as possible in the chassis, but as it is quite heavy the center of gravity is pretty high.

coolko212

[X(]
man that is awsome

Krusty

Hi Unique,
Nice installation. Although I have four K&B .61 engines (all with Perry carbs one with a pump) that are used for my airplanes, I never thought of putting such a large engine in an R/C car. The largest engine I ever put into a car (Dynamic Sidewinder) was an OS Max .30. It was fast, but difficult to control. The early clutch design would slip under full power and would take a long straightaway to finally "hook-up". A large engine might be able to work in 1/8 scale providing you could lay the engine down to reduce the high center of gravity. A simple sturdy belt or chain drive system similar to the R/C 500 could be a possibility. That arrangement would eliminate any "weak" transmission designs. They have used .61 engines in tether cars since the begining. The C class tether cars (those with the .61 engines) are capable of 200 MPH!! That is not a misprint (200 MPH).

nodolarsnosense

unique. with 2wd and .61 that must = a lot of tire spinning action. you could lay black lines on take off

mr_exon

just get a thunder tiger .70 it will bolt right in a big block mount (i think, i saw one last week at a hobby show... looked the same size) if so put it in a schumacher on road car and after regeing it you should take it over 100mph WOW! there is a drag moter conversion some one had on the net a while back for the fusion and they clocked it at 93 mph so over 3 time the displacement and new gear ratio 100+mph is very posible. go to hardcoreracing.com and you can wach one do over 80 in less then 200 feet!

Mcot2

you can forget about a 2wd truck because that much torque will lift up the front end so much its unbeliveable. The .15 in my losi is good for about 40 mph, a .61 (If it was 4wd, and somehow converted to rc car use) would be unbeliveable, but lets consider how stong the frame would be meaning the frame would weight alot, the shocks would have to support that, and be bigger and heavier, and it would be a mess.

maxxdriver

that would be like a speed mutunt rc car !!!!!!!!!!!

that would be awsome