Hpi motor

[Justin clarke]

Hi just bought hpi trophy truggy flux is there any motor upgrades that can be done ??

Thanks Justin 

[Nitroholic]

Depends what you are trying to achieve.

 

There is nothing wrong with the stock setup, but any truck can be made to go faster. Add a longer can motor ( if there is room) and you will get more torque, allowing higher gearings and more speed. It will also put more stress on just about every part of the drivetrain.

When you upgrade a motor....do not expect it to stop there.

 

As an example.....I put a 4282 motor into a Hobao truggy. A truck wioth a rep for being bulletproof. A 4078 would be more normal....but I wanted POWAAAA!!!! Centre diff stripped on first pack. Rebuilt and shimmed it. Stripped it again and tore 2 tyres off the rims. Locked up the centre diff....then blew a front and twisted a driveshaft. The diff had got so hot the plastic case had melted and the oil dribbled out. Rebuilt it ....then fried the ESC. I think there had been another driveline fail, which had taken the ESC over the edge and volcanoed it. Repaired the driveline...and sold the car as a roller.

 

I had managed to kill it every run in less than a full pack. Running 5S....not the 6S I had planned.

 

To make it work, I would have needed to rebuild and shim front and rear diffs with alloy cases, swapped the centre for a 6 planetary spider setup, fitted new wheels and tyres with heavily banded foams, and then...just maybe...it would have been usable.

But, even when it did run..all it did was wheelie under power and cartwheel all over the place. It just stopped being fun.

 

Since then, I have been careful to keep the car perfomance in a comfort zone where it can be run as long as I want, and where the handling and power are matched. So...basically....carefully consider what you want to end up with. It may be a lot less fun than you hope.

[Bajadre]

could go max 8 and run it 4s or 5s like nitro said heard the same about them running on 6s 😞 my mate ran his on 4s and just changed to a bigger pinion in the end they handle well on a track too 

[froggy8]

i was going to mention, instead of another motor, could the OP just change the gearing to make it faster?

[Glenn75]

I run my trophy buggy on standard motor and esc you can just turn up the punch on the esc and run it on 17t pinion goes really well, not sure what pinion truggy runs  have gone up to 19t pinion but heat was an issue in the summer, but they do break easily when you start  crashing at high speed. Would recommend aluminium hinge pin holders.