Converting Electric to Nitro

kirving

I've got a HPI RS4 MT. It old enough now, and I haven't really used it much at all. Probalby less than a dozen times, mostly due to the fact that the battery lasts no time.

I was wondering how hard and expensive it would be to convert it to nitro. I think I'd need throttle servos and a few other bits aswell. I dont think I have the original extra's that came with the kit for the petrol option.

Would it be cheaper just to buy another nitro car(I dont really use this offroad, grass is the limit) rather than upgarde this?

T-Maxx

Definitely cheaper to sell the elec. on and buy a nitro buggy/truggy.

kirving

Rite so, any idea how much I should be looking for? Its 5 years old now, but in perfect condition. Only need and an antenna straw.

vectra

Kevin Irving wrote: »

Rite so, any idea how much I should be looking for? Its 5 years old now, but in perfect condition. Only need and an antenna straw.

Its not so much the fact of what to ask for. it is a case of finding a buyer really. Most people are like yoursef now and getting into nitro. Maybe someone would do a trade with you along with some cash?

coolwings

I wonder if your problem is that you are trying to get a cheap electric with a cheap (comes free with the car) battery , and a bottom range leccie motor (value a tenner), to perform like a hot car.

If you tried to get a nitro car to go fast with fuel so lousy that the fuel was for free, and put in a nitro engine so old it was value under twenty, I guess your nitro car might also disppoint slightly.

So do you need a new car? ... maybe.....
... or do you prefer to be realistic and put in the better (eg ADEQUATE or better ) electrics you might have got with a more upmarket electric setup.

Just so you know, a top notch electric, costs more than a hot nitro car, it matches the nitro car in power, but far exceeds nitro in ease of use, non-tuning difficulties, and cost of maintenance.

I would think that a hot motor budget about fifty euros, and a decent battery like GP3300 or 3600s would multiply the cars performance by double or even more.
If that is interesting, given that you already have this car....

You could put in 150 brushless and good battery and get better performance at a cost too, but the first 80 or 90 spent will produce the greatest percentage increase in performance. So I personally would not feel brushless is necessary.

The Doktor

Was just gonna suggest pretty much what coolwings said. If your main problem is the battery not lasting, why not just buy a couple of decent batteries?

kirving

Thats an idea, a better battery would be far easier than changing everything, and I wouldn't have to worry about fuel etc. If I was to get a higher voltage battery and motor, would I have to get a new speed controller too? I currently have a JES 300 car controller and a 7.2v 1600mah battery.

vectra

Kevin Irving wrote: »

Thats an idea, a better battery would be far easier than changing everything, and I wouldn't have to worry about fuel etc. If I was to get a higher voltage battery and motor, would I have to get a new speed controller too? I currently have a JES 300 car controller and a 7.2v 1600mah battery.

Better speed controllers give better performance as well.But that one should be fine to run a 27turn stock motor anyway and also would be fine for a better battery pack.

kirving

Brushless does seem to be good, but I'd need a new speed controller too - Expensive! I'm probably gonna order a new motor and battery online. Any recommendations on a motor?

vectra

Orion core 27turn stock is a pretty reliable motor with plenty of punch