LST2 CVD on Savage?

[mothman]

Reading this thread makes me feel that the LST2 cvd can be used with minor modification. If this is possible, savage can have the strongest cvds out there!

http://traxxas.com/forums/showthread...things/page16&

Anyone tried this before?

[lincpimp]

You would have to use the lst c hub and knuckle as well as the cvd, as the inner bearing captures the cvd pivot pin. And at that point you might as well use the lst arms as they will be the correct length as the lst cvd is slightly longer than a savvy dogbone.

And after putting a set of hd savvy dogbones in I have a feeling they are stronger than the lst cvds. Maybe the cen genesis cvd would be a better choice?

I have seen some savvy owners put the complete cen arm assys on their trucks, wider and stronger.

I still think the lst is a better truck, and if you want cen stuff just buy the whole cen trcuk as it is just like a giant savvy anyways. Very similar designs. Just my take on it all.

[Bondonutz]

I was able to get LST2 axles in my Hot Bodies Lightning Stadium Pro2 so theres hope for the Savy.

[mothman]

Originally Posted by lincpimp

You would have to use the lst c hub and knuckle as well as the cvd, as the inner bearing captures the cvd pivot pin. And at that point you might as well use the lst arms as they will be the correct length as the lst cvd is slightly longer than a savvy dogbone.

And after putting a set of hd savvy dogbones in I have a feeling they are stronger than the lst cvds. Maybe the cen genesis cvd would be a better choice?

I have seen some savvy owners put the complete cen arm assys on their trucks, wider and stronger.

I still think the lst is a better truck, and if you want cen stuff just buy the whole cen trcuk as it is just like a giant savvy anyways. Very similar designs. Just my take on it all.

Maybe the pin can be secured using something else. This guy tried using o-rings to secure the pin. http://www.rctech.net/forum/monster-...cvds-maxx.html.

As for the length, I really hope someone could help on the dimensions of the cvd. Mistercrash has been successfully using these cvds on the e-revo after shortening the axle by drilling another hole for the pin that goes into the hexes. and he did 100 backflips using these cvds with 6s and they are still perfectly ok!

I have read about the SHD dog bones and the cups cracked with 6s. They are strong but not as strong enough. Maybe because of the material or the temper processes since the diameter of the SHD dogbone and LST2 cvd shafts are both 5mm.

Thanks linc. I have read your feedback on lst and savage. I do agree but I think I'll keep my savage as I have bought too many hop-ups for it :(

[lincpimp]

Originally Posted by mothman

Maybe the pin can be secured using something else. This guy tried using o-rings to secure the pin. http://www.rctech.net/forum/monster-...cvds-maxx.html.

As for the length, I really hope someone could help on the dimensions of the cvd. Mistercrash has been successfully using these cvds on the e-revo after shortening the axle by drilling another hole for the pin that goes into the hexes. and he did 100 backflips using these cvds with 6s and they are still perfectly ok!

I have read about the SHD dog bones and the cups cracked with 6s. They are strong but not as strong enough. Maybe because of the material or the temper processes since the diameter of the SHD dogbone and LST2 cvd shafts are both 5mm.

Thanks linc. I have read your feedback on lst and savage. I do agree but I think I'll keep my savage as I have bought too many hop-ups for it :(

I like what he did with the revo conversion.

I will be assembling a set of savage bulks tomorrow (hopefully) so I will see how a lst2 cvd fits. I have put some serious power thru my cvds on my lst2 and they are doing just fine. Losi make some good parts, I would not doubt they are better than the hpi stuff.

I feel your pain with the savage, I have 2 of them and have alot tied up in upgrade parts. I am not a big fan of the tvp design, but It is realatively easy to make a long chassis with simple tools, and that is what I am doing with my 5t build.

I hope the bulletproof diffs and the shd dogbones hold up...

As for the conversion, both trucks use 8mm axles so that should not be an issue, I have some spare knuckles for the savage and will see how the hex pin hole lines up wen installed in the stock savage knuckles with stock hpi bearings. Will try to do that tomorrow.

[mothman]

Originally Posted by lincpimp

I like what he did with the revo conversion.

I will be assembling a set of savage bulks tomorrow (hopefully) so I will see how a lst2 cvd fits. I have put some serious power thru my cvds on my lst2 and they are doing just fine. Losi make some good parts, I would not doubt they are better than the hpi stuff.

I feel your pain with the savage, I have 2 of them and have alot tied up in upgrade parts. I am not a big fan of the tvp design, but It is realatively easy to make a long chassis with simple tools, and that is what I am doing with my 5t build.

I hope the bulletproof diffs and the shd dogbones hold up...

As for the conversion, both trucks use 8mm axles so that should not be an issue, I have some spare knuckles for the savage and will see how the hex pin hole lines up wen installed in the stock savage knuckles with stock hpi bearings. Will try to do that tomorrow.

Great! thanks linc. waiting for your update.

[josh9mille]

i converted my LST to LST2 spec, and though the LST2 axles are 100% better than the earlier ones, I still bent, rebuilt, and replaced the axles a few times and that was with a nitroburner. With the LST axles it was broken pins all the time, with the LST2 axles it was making the holes bigger that the pin goes through. I like dogbones better, much simpler.

[lincpimp]

No prob, I have the parts laying around and I did a comparison recently with the shd hpi bones and a lst2 cvd. Seemed like the lstr was slightly longer, by maybe 1/4" or so. I had thought it was alot longer, and might have been a suitable candidate for a custom longer arm mod, to widen the savvy track width. But it may be close enough to swap in with a few mods.

[lincpimp]

Originally Posted by josh9mille

i converted my LST to LST2 spec, and though the LST2 axles are 100% better than the earlier ones, I still bent, rebuilt, and replaced the axles a few times and that was with a nitroburner. With the LST axles it was broken pins all the time, with the LST2 axles it was making the holes bigger that the pin goes through. I like dogbones better, much simpler.

That is a cvd issue, the crosspins are often harder than the cvd body, causing wear to the body. No fixing that, save for a complete overhaul of the design.

The pins really need to be bigger and ride on a replaceable bronze bushing that is honed to a set clearance and greased. Sealed up tight would be good too.

[Jahay]

i was desperately trying to work out a way of doing this, but i thought it would just be easier to stick with teh savage arms and suspension conversion kit... it would be nice to be able to use CVDs with it so we can increase steering...

I just want someone to ake SHD CVDs for the savage with 17mm Hexs! They would definitely sell!

They are not needed on the rear! Just on the front

[lincpimp]

Ok, gave it a try. The lst2 cvd is about 3/8" too long. So longer arms would be required. No way around this, that I can see. I will try putting a lst2 c hub and knuckle on the savage arms and see if that places the cvd out away from the bulk enough for it to fit.

The axle does fit in the savage hub, and if you use a lst hex on it there is about 4.5mm gap between the back of the hex and the outer hub bearing. So either a spacer or a new hole would have to be drilled (like what mister crash did).

I do see an issue, the cvd has a tapered portion where the axle goes into the cvd cup. This may place too much stress on the savage inner hub bearing race, and cause failure.

On a side note, I was suprised to see how close the savage hub bearings are to each other. People using the longer Xl axles must have bearing failures frequently, as the bearings are not that big (8x16) and are almost touching. Not so with the lst hub, it places the bearing at least 4 times farther away from each other, and the inner bearing is much bigger (still uses and 8x16 outer bearing).

Back with more info in a few.

[Jahay]

YEP YOU ARE RIGHT

i use xl axles and full offset rims!! I replace my wheel bearings every 5-8 runs!!! TERRIBLE i know but its worth the performance gains and the crazy wide look

Please have a look into this a little more... is it possible to fit lst arms on? if you can get it to work that would be awesome and i may give it a go!

Would you like to be the test monkey haha

[lincpimp]

I can spank the test monkey...

Did a quick test fit, the lst c hub will fit with slight grinding to the savage arm, and should place the cvd out farther away from the bulk than the savage hub does. I have some spare savage arms, so they will get modded in a few, just need to finish lunch.

[lincpimp]

Ok, modded the lst c hub to fit a savvy lower arm. All I had to do was some grinding on the outside of the hub where the lower pivot pin goes thru and it fits nicely inside of the savvy arm. Hinge pin size is exactly the same.

The upper arm would have to be the ss savvy adjustable one, as the lst hub does not sit at the samer angle as the savvy hub in order to get the axles parallel with the ground.

However the stock savvy lower arm is still too short, by about 1/4" or so. Had a look at the lst lower arms and they are just under .5mm longer than the savage. No dice there. The difference in width comes from the lst bulks, it places the inner lower hingepins wider than the savage.

So we need longer lower arms and adjustable upper arms to make the lst2 cvd in a savage a reality. So close yet so far. I will post pics later, need to get back to work.

[Jahay]

thanks for getting on the job so quickly... i really want to see pictures... when you have time.
Cheers