i just swooped!!

I've used the Super Hot Shot 2 for a little while now and it works great. I recently used a buddy's Lipo ignitor and it works awesome. Definitely picking one up for myself. Both are great ignitors but the lipo one is really sweet. I didn't think I would be a fan of it at first, but after using it, it does work very well.



Looks nice. I've been using the DE bump-skids myself. They do the trick and blend seamlessly into the chassis. I will never use a rear skid again. They're too catchy and make the truck/buggy too inconsistent in sharp bumps.

[QUOTE=JAMMINKRAZY;8774173]From my experience you actually don't want any backlash. Tighter the better without binding.

In my experience,it would appear you need more experience with gears ! LOL !all gears need backlash !IMHO!!

[QUOTE=rc racer 103;8775060]I use to set up my ST-R with zero backlash and break the gears in..it seemed to work the best for long life..once broken in I would set the backlash..

That's cool and all, but completely opposite from people's real world experience with this truck. Everyone I've talked to, says run them tight as you can. I've tried it both ways and running them as tight as possible without binding and using a good grease gets the best results by far. So I say to you, these gears don't need backlash...

I don't run any backlash either. I set mine so i can feel a small gritty high spot when new. It wears in quick. Mobil 1 syn grease. I don't get much ring gear wear, but the pinion will get smaller with time. I replace pinion 1 time for each ring gear.

Right on ! to each there own ,,,I have been building gears for navy ships and race cars for 20 years and never had a failer with backlash ,one guy I know read what your saying and he did it the same way and his gears failed within 3 months so I showed him how I build it and he's going on 2 1/2 years with no problems .I have 2 years on mine ,, the heat treat on the teeth is only so deep on these little gears ,when you run them they heat up and expand as all metal does if it doesnt have any where to grow and binds then you have a gear failer , and the drive train will start binding ... this is just my opinon from my experience ,,,everyone has there own way of building things and if your way works for you then thats great .... no harm no foul !! LOL !!

That's been my experience as well. The problem with trying to run any back lash is that unlike in precise machinery these gearboxes are made of plastic, and pretty soft plastic at that. When you get outside in the summer heat and run a long main, the plastic gets soft and flexes. This causes the lash to become too big and the gears start skipping. Do this a couple of times and bye bye gears. If the gearboxes were all metal and didn't have that extra give you could get away with no backlash.

whats backlash

i run no backlash too. ive ran the original r+p on all my vehicles from the day i bought them to the day i sold them. My dad built his one day with a little play and before the day was over he needed a new r+p.

Clearance between ring and pinion gear. Or play. The other kiss of death is putting driveshaft on without holding pinion against bearing.

ahh....just a fantcy word for play! thanks!

Yep that will do it every time as well.

Another note, as the gearbox gets older and more beat up, it also will become more flexible which causes even more trouble. That's why it is a good idea to replace them pretty often. The aluminum bearing inserts do help some, but the gearbox still flexes.

I'm in Calif were it gets flipping hot and I have never had a r/p failer with backlash... do you have backlash on you clutch bell to you spur gear ?

Yep I do. I have backlash on the front diff as well. But when it comes to the rear diff I'll never run it again, too many failures. The rear diff takes a ton of abuse in the truggy. It needs to be tight. Every failure I've seen on a rear R&P in a losi truck was a result of too much backlash. I have explained the situation to many people, and when they shim their next set nice n' tight, they never have an issue again. This isn't just some BS pulled out of a hat. There are many people that share my opinion. It works, so I'm gonna keep on doing it the way I do and keep on recommending that others do as well. I've seen too many issues come from doing things other ways. I'm happy to hear your method is working for you, but for the great majority it causes problems...