TM2 nose diving

H3N · #1 11-12-2014

Hi,

I have got a TM2 I am running indoors on carpet. Was struggling with understeer and went stiffer all round which improved the cars handling through the corners. Only problem is the car now badly nose dives off every jump. I am think the oil is too thin in the rear as the back is coming up too quick off the jumps?

It only started once changing the springs so I haven't changed driving style and run no drag brake.

Interested to hear your thoughts guys.

Thanks

Karting · #2 11-12-2014

Check that the chassis dosnt bottom out on the up ramp as this can cause it (i found out after a very frustrating day)

Chalkie · #3 11-12-2014

Can you post your shock setup? Sounds like a damping issue to me, I've found you can get away with running the rear of the car very soft but the front benifits from quite heavy damping.

H3N · #4 11-12-2014

I have got 450 shock old with Hobao white springs high I believe are the same as Losi. They are hard springs. I had the softer ones on before but the car seemed under damped.

H3N · #5 11-12-2014

Sorry no I have got 350 OIL in it

Chalkie · #6 11-12-2014

Which pistons and is that oil in the front and rear?

H3N · #7 11-12-2014

Not sure on Pistons. Yes same front and rear

brooksy · #8 11-12-2014

I'm running 35wt in front and 27.5wt in rear on mine. Front will need to be harder than rear,not the same. What's your ride hight as well?. Think mines about 22mm high.
I've got grey medium AE springs on the front and blue medium AE on the back. It also depends on the up ramp as well,if there's a lip at the bottom into the run up that could flick the rear up?.

Gavin Collingwood · #9 11-12-2014

Quote:

Originally Posted by H3N

Hi,

I have got a TM2 I am running indoors on carpet. Was struggling with understeer and went stiffer all round which improved the cars handling through the corners. Only problem is the car now badly nose dives off every jump. I am think the oil is too thin in the rear as the back is coming up too quick off the jumps?

It only started once changing the springs so I haven't changed driving style and run no drag brake.

Interested to hear your thoughts guys.

Thanks

I know it sounds silly but most people I see complaining about nose diving, usually it turns out to be driver error i.e letting off the throttle or even braking mid air.
Other than that can only be the rear of the car is too low and kicking the rear end up off the lip of the jump

Chalkie · #10 12-12-2014

I'd be running thicker oil in the front shocks than the rear, on losi oils I'm normally around 40f and 27.5r.

marcel · #11 13-12-2014

Setup wil not be a big part of jumping
Drivers that punch it over a jump to just make a jump get there nose up.
You can controll that.
Also rear wing can do alot .big high wings have alot of influence in nose up.
I run low cut wings on my v2