Savage BP diffs in revo hybrid or lst case?

[Manne]

I think i´m going for the lst diff modification for my Erbe and I´m wondering if there is a possibility that the Hpi BP ring-gear and pinion would fit in either the revo hybrid cases or in the lst cases?

[Semi Pro]

why would you want to?

[Manne]

because they are very very strong :)

[Semi Pro]

Originally Posted by Manne

because they are very very strong :)

they arent any stronger than the xxl diffs, they are just a diffrent ratio

with a revo transmission you shouldnt be able to kill any properly shimmed 1/8 scale diff

infact i have been racing my platiunum conversion for over 2 years with shimmed stock diffs and i havent had any problems

[Bondonutz]

The BP diffs have slightly larger gears and less teeth per gear. I would think they'd be stronger but the tempering of the steel is the dealie-O on that.

[Manne]

"they arent any stronger than the xxl diffs, they are just a diffrent ratio"

I strongly dissagree,

look at this picture:



And this:



A stock 1/8scale savage diffs Vs BP.... No difference? Looks bretty much more beefy in my eyes

Currently I´m using stock diffs, with alu cups, shimmed properly, no play and no binding.

My problem isn´t that the pinion is "jumping over" a few tooths on the ring gear. The problem is that the tooths are losening from the ringgear..

I have my slipper adjusted correctly, loooose, and I never land with throttle..

Back to the topic, does anyone know if there is a chance that the bp diffs would fit in the losi cases or revo hybrid cases?

I looked at the exploded views of the losi diffs but there was no information on what bearing size the lst diffs pinion and ringgear/cup uses..

If anyone knows the size I could compare it to the savage bearing sizes and see if there was a chance to make this work

[_paralyzed_]

Manne- you showed a side by side comparison of the SAVAGE XL diff and a BP diff, of which yes, the new bp version is stronger.

semipro was referring to a LOSI XXL diff, so your picture has nothing to do with what he said.

I believe his point was that Losi diffs in Losi cases are more than strong enough for a light revo. Whatever diffs fit in the revo hybrid cases are also more than strong enough in a light revo.

So it's much easier to just use one of those methods rather than "reinvent the wheel" so to speak.

I think you got caught up in hpi's marketing. Yes they are called bulletproof diffs but they aren't "the best of the best"

I can't answer whether or not the diffs will fit, I can say it's much simpler and JUST AS EFFECTIVE to use lst diffs or hybrid diffs.

Basically there is no point in doing what you're doing. It's like putting a spoiler on a station wagon.

But if you really wanna do it go for it! Post pics!

[ZippyBasher]

Although, may not be "needed" Here on RCM is about OVERKILL. Please post distances between screw holes and outside diameter of the ring gear. And maybe we can get some specs listed on here for both manufacturers.

I am sure Mr. Crash would have liked to know.... Well, now Nitrostarter....

[Semi Pro]

Originally Posted by _paralyzed_

Manne- you showed a side by side comparison of the SAVAGE XL diff and a BP diff, of which yes, the new bp version is stronger.

semipro was referring to a LOSI XXL diff, so your picture has nothing to do with what he said.

I believe his point was that Losi diffs in Losi cases are more than strong enough for a light revo. Whatever diffs fit in the revo hybrid cases are also more than strong enough in a light revo.

So it's much easier to just use one of those methods rather than "reinvent the wheel" so to speak.

I think you got caught up in hpi's marketing. Yes they are called bulletproof diffs but they aren't "the best of the best"

I can't answer whether or not the diffs will fit, I can say it's much simpler and JUST AS EFFECTIVE to use lst diffs or hybrid diffs.

Basically there is no point in doing what you're doing. It's like putting a spoiler on a station wagon.

But if you really wanna do it go for it! Post pics!

thanks paralyzed you said it much better than i did


as for monster being the home of overkill i agree, but hey its his money......op buy them and make them fit, its that easy

[Manne]

_paralyzed_ "Basically there is no point in doing what you're doing. It's like putting a spoiler on a station wagon." Haha Thanks for the reply Maybe you are right

And I know that he meant losi xxl diffs, but I thought they had the same pitch ( or very close to the same ) as the savage xl diffs and other 1/8 scale diffs except the CEN monster and Hpi bulletproof diffs, I´m sorry If I got it wrong. I just thought it was a good camparision picture.

I am not fooled by hpi's marketing, there is always something else for another amount of cash that is better, or better suited for the application. But after alot of reading in alot of different forums I couldn´t see any stronger diffs really...Maybe UE has something but that is not an possibility.

I just wanted to make it as good as possible when I´m at it... Mistercrash destroyed several diffs in his xxl Losi.. Yes I know that is one HEAVY truck, but hey I want to run 5s with pretty big tires and the slipper tight... I bash very hard in sandpits and I´m doing things that puts alot of strain to the drivetrain, I´already at to change my summit shafts for losi lst dogbones and axels

( trying to finish Mc´s tip :

http://www.rc-monster.com/forum/show...&postcount=655 )

If someone has a better suggestion please feel free to speak, Semi Pro, "as for monster being the home of overkill i agree, but hey its his money......" Stop being so negative and help me instead

You are saying that the lost diffs will be more than enough, maybe you are right, but I am concerned because I have read about people who had done the Lst mod and haven´t had any differential issues what so ever after and that is good, but... There are some people who runs the stock diffs just shimmed for more then a year without issues... It all depends on the drivingstyle and setup of the truck..

I can use the stock diffs with small superlightweight truggy tires for many many hours of hard driving without problems, but as soon as I slap on some bigger tires for more groundclearence and more gyro effect when I´m at driving in the sandpits....Bye bye stockdiffs

I have been thinking of getting Lst diffs and run them to see if they are enough for the application.. But if they aren´t, then I have throwed out alot of money for something that doesn´t work.

I have learned one important thing from this hobby over the years, Do it right from the beggining, don´t "cheat"

So if someone has a Lst with the diffs open, feel free the meassure the bearings

[pinkpanda3310]

What dimensions did you want?

[Semi Pro]

Originally Posted by Manne

_paralyzed_ "Basically there is no point in doing what you're doing. It's like putting a spoiler on a station wagon." Haha Thanks for the reply Maybe you are right

And I know that he meant losi xxl diffs, but I thought they had the same pitch ( or very close to the same ) as the savage xl diffs and other 1/8 scale diffs except the CEN monster and Hpi bulletproof diffs, I´m sorry If I got it wrong. I just thought it was a good camparision picture.

I am not fooled by hpi's marketing, there is always something else for another amount of cash that is better, or better suited for the application. But after alot of reading in alot of different forums I couldn´t see any stronger diffs really...Maybe UE has something but that is not an possibility.

I just wanted to make it as good as possible when I´m at it... Mistercrash destroyed several diffs in his xxl Losi.. Yes I know that is one HEAVY truck, but hey I want to run 5s with pretty big tires and the slipper tight... I bash very hard in sandpits and I´m doing things that puts alot of strain to the drivetrain, I´already at to change my summit shafts for losi lst dogbones and axels

( trying to finish Mc´s tip :

http://www.rc-monster.com/forum/show...&postcount=655 )

If someone has a better suggestion please feel free to speak, Semi Pro, "as for monster being the home of overkill i agree, but hey its his money......" Stop being so negative and help me instead

You are saying that the lost diffs will be more than enough, maybe you are right, but I am concerned because I have read about people who had done the Lst mod and haven´t had any differential issues what so ever after and that is good, but... There are some people who runs the stock diffs just shimmed for more then a year without issues... It all depends on the drivingstyle and setup of the truck..

I can use the stock diffs with small superlightweight truggy tires for many many hours of hard driving without problems, but as soon as I slap on some bigger tires for more groundclearence and more gyro effect when I´m at driving in the sandpits....Bye bye stockdiffs

I have been thinking of getting Lst diffs and run them to see if they are enough for the application.. But if they aren´t, then I have throwed out alot of money for something that doesn´t work.

I have learned one important thing from this hobby over the years, Do it right from the beggining, don´t "cheat"

So if someone has a Lst with the diffs open, feel free the meassure the bearings

im not being negitive im being helpfull, my lst xxl is on 12cell with stock diffs and no problems

but its all good, like i said buy it, we dont learn anything new without someone takeing a risk

[_paralyzed_]

whole lst diffs and aluminum cases can be had for $15 on ebay. Not a bad investment.

I have a savage and lst diff here but can't get out of bed. Sorry!

[Manne]

Looks like I have to get a e-bay account then!

pinkpanda3310, Thanks alot! Can you give me the meassures of the inside of the pinion bearings and the inner and outer size of the other two bearings?

Should we call the outside of the pinion bearings 16mm? or is that some wierd size in inches or something?

Semi Pro, I read your thread before if I remember right, For how long have you driven the truck on 12s?

How many different versions does losi have of their raminator, Lst, XXLst, and lst2 differentials? Wich ones should I stay away from and wich ones comes with alu cups and wich ones has tiNi gears, magic mushrooms, hidden ferraris and other good stuff in them?

Edit:

I think I´ve got it now, they come with non TiNi gears, a plastic cup and outer aluminium housing, so, where are you guys and girls buying alu cups?


Edit2: I found out that the pinion shaft is 8mm ("Big bearings for the pinion, which has an 8mm shaft" http://rc-monster.org/forum/showpost...00&postcount=1 )

So the pinion bearing is 8x16mm... Time to check the bearing size of the Savage Bp pinion

Edit3: .........Bp pinion=8x16...

We might have a go here! But I think I will wait with this whole whing until mike gets some hybrids out again Can´t wait!

[Manne]

Now we just need someone to meassure the Hpi BP diffs like this:

And then we will know....