CVDs on XXX-CR - good idea?

[Graeme]

Hello all,

First post here and hoping you guys can help me out. Wondering about putting CVDs on a XXX CR. I notice there have been several versions over the years during the BK versions so my question is this.

1) Is fitting CVDs a good idea - everyone else seems to do it (X Factory, Associated etc)? I race mostly indoors on carpet with the occasional foray onto the dirt when the weather improves. What can I expect to gain or lose in the performance dept with CVDs

2) If it is a good idea which ones? BK or BK2 or TIR for BK2?

Cheers

Graeme

[bbq]

CVD's will give you less grip and feel less smooth over bumpy sections.
But it feels like you get more acceleration with CVD's

Thats my opinion.

/Daniel

[ashleyb4]

The std bones seem fine really ide leave them as std.

A

[Danny McGee]

Originally Posted by ashleyb4

The std bones seem fine really ide leave them as std.

A

A simple asnwer to this would be.

CVD's give more drive i.e forward traction, but you loose out on side bite. Because of this the car tends to feel like it power understeers more.

Dog bones are the choice of 99.9% of the losi guys (my opinion it should be) as the losi has a LOT of traction anyway (im still trying to get rid of some) the dog bones therefore give more side bite. Which in the world we race in is lovely

Obviously this is just my opinion but i think thats right

Danny

[Southwell]

I only run dogbones in both of my cars.

[ashleyb4]

I run dogbones in the cr and cvd's allround in the xx4.

A

[Rocking Donkey]

I'm a little confused. I have just bought a BK1 on eBay with CVD's. I don't really understand how the style of driveshafts can affect the grip level and would be really interested in the mechanism for this. If someone could explain this to me it would be much apprieciated

Cheers

Ben

[MiCk B.]

When the power is applied the CVD 'wants' to straighten out. So providing more drive forward, with less side-bite.

MiCk B. :-)

[Graeme]

Seems like it's a case of if it ain't broke don't fix it then. Thanks for the help - I'll be back with other questions later...

Cheers

Graeme

[General Accident]

Originally Posted by Southwell

I only run dogbones in both of my cars.

On my XXX-CR there are dogbone ends into the gearbox outdrives but the hub end has a bloody great white plastic "universal joint" er, joint. Have I got hookey shafts???

[ashleyb4]

Yea dogbones are the UJ's

A

[Southwell]

Originally Posted by General Accident

On my XXX-CR there are dogbone ends into the gearbox outdrives but the hub end has a bloody great white plastic "universal joint" er, joint. Have I got hookey shafts???

There are two types. Ones which the white bit screws directly into drivshaft and ones which are held together by a pin and grub screw (xxx-cr standard)

[pugboy]

This might be a problem I have been suffering, never realised it was a factor in side bite. I too bought a Losi used off ebay and it had gold CVD's ( I think) something like these

http://www.losipartshouse.com/servle...fdsh-XX/Detail

But I also have the plastic ones but have never tried them as assumed they'd be inferior, but they still seem to be a 'dogbone' on the gearbox outdrive and uj at the other, but an assembled type uj with an allen bolt throught the middle. Arethese what people refer to as 'dogbones'?

When I was a lad (long time ago) a 'dogbone' driveshaft had a separate drive cup at the outer (hub) end and the actual shaft was separate.

confused... (doesn't take much!)

Chris

[Fiddybux]

Oh bejesus....I never realised this.

As soon as I got my CR I took the standard white plastic bones out and put XXXBK CVD's in.

This could explain why when I feel the need to control the rear end side more.

I will defo try the standard bones on this to compare.