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-   -   TM2 nose diving (http://www.oople.com/forums/showthread.php?t=160784)

H3N 11-12-2014 11:57 AM

TM2 nose diving
 
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 11-12-2014 12:55 PM

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 11-12-2014 01:57 PM

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 11-12-2014 03:13 PM

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 11-12-2014 03:17 PM

Sorry no I have got 350 OIL in it :)

Chalkie 11-12-2014 08:18 PM

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

H3N 11-12-2014 08:32 PM

Not sure on Pistons. Yes same front and rear

brooksy 11-12-2014 08:52 PM

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 11-12-2014 11:19 PM

Quote:

Originally Posted by H3N (Post 889551)
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 12-12-2014 10:21 AM

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 13-12-2014 08:16 PM

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


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