sputnik

Thanks for tuning in ... I just finished up reading over your huge thread on the 5th scale flashlight build a few nights ago. Awesome stuff.

Those where the ones - DE - that I saw at my LHS [ Nitrhouse.com ] and will try first ... Seems my brother has my other wheels/tires at his place which I couldnt recall their name/make - need to get them back. OFNA made them as I recall. They made them in chrome and in flat white - I got one of their last sets before they discontinued them ... You jogged my aged and fading memory :-) These wheels - the chrome ones - but imagine in all white [ not those tires + badlands ]

RCButcher thanks for the heads up on those wheels! I will look for those and perhaps give them a go - Ive run something similar on a 1/8th buggy SC conversion build ... the badlands buggy tires have been a staple on my bashing buggies for a good while. Perhaps the SC tires with some very firm foams may assist? Im not sure the SC tires are THAT much smaller - perhaps they are - than 1/8th buggy - just their wheel bead and design of where the tire mounts is different ? Will compare. Great suggestions and I will look into these for sure. Thank you!

Started a real build thread in Short Course section http://www.msuk-forum.co.uk/topic/206471-hyper-st-pro-eshort-course-conversion-build-2015/

So after some dry fitment - and doing some reading and asking questions of those folks that are currently using these tedious spawn of satan to construct ... I find out they are noteable for a wretched thing - they leak - and no one I spoke with had a solution. But me, I'm stubborn and ... ___________________ <------- [ your favorite adjhective there] Diff Build Process Notes: Hoping this new adventure for me - semi documented here can help other folks sometime. Kinda posting as I learn to build these Spider Diffs - and trying to take some best practices from otehr styles of diffs over to these LEAKING SIEVES [ so Im told ] . Based on prior discussion of leaking issues - I am testing out using a bit more rtv in spots - to see if that will aid in drying up the problems a bit. Worked on some other diffs Ive done - so what they heck. Not a giant fan of RTV - and I suspect I will pay the price of cleaning it all off and out on next teardown - but dry diffs using all their fluid is kinda importante'. So here's what I did. First pic here is where I put small thin beads as best I could of RTV in RED, and copious amounts of Green SLIME = GREEN. My objective was to aid the large o-ring gasket to seal better and in my past experiences Hyper diffs are known to leak fluid out of the screw holes - so I wanted RTV in the thread of the bottom screw holes - as well as where the bolts countersink into the spur and ring gear - the other main seepage point. I think this picture indicates partial mission accomplished. This little dooo hikkkey - is the whizbang Hobao Rubber Spider Diff Building Tool - at Nitrohouse.com part # OFN19346 Freshly built - I let these set for about 40-45 minutes in this state ... messy. Let the RTV setup more but not all the way dry - still pliable and can wipe off ... the Before Pics Ring Gear and Case joint close up - squished out some - desired I think - let that setup and firm up and use a toothbrush to clean it up in 45 mins - full view shows the red RTV in the bolt hole threads as well. ^^ - After - and what Im calling - DONE ... All in all - I found these spider diffs to be a real Beeeeyotch to work with and build - there are sooo many little moving parts all trying to go together at the same time - it gets tricky. I was hoping their durability and potential smoothness would make it all worth the efforts. Thats for an electric truck front diff so I used 30k weight Mugen oils - it wasnt all that smooth and buttery - like the center with much lighter oil. Will reserve judgment after I break em in and give em a good bash on 4S like we do. Hope this little pictorial escapade aids some of you other modelers - that was the intent.

Hobao Spider Differentials Ive literally built and rebuilt about a thousand OFNA / Hobao / Hong Nor diffs between all my cars - the custoemr project builds and racing 4 vehicles between my son and I over the years. Never built the Spiders from Hobao before. I think I know why now :-) These things are tricky lil buggerz. So I got my diff station setup and started cleaning stuff and sorting ... So as I start putting these spider gizmos together I come to the realization there is no way to fill them without hte diff oils running out hte bottom six screw holes. Design failure I think. Well not exactly ummm - dont give these go without this thing .... ^^^^^^^ Here it is installed on the bottom and its sole job is to plug the holes so diff fluid doesnt leak out ... smh!

Starting from Scratch - from parts inventory of Hyper's 7/8 etc .... Here's the start First Order of business - is to build some more Hobao 8 Gear Spider Diffs. Then the astute observer will note the front suspension is that of the Hyper SS. Due to my disdain for the standard Hyper ST Pro [ Hyper 7 steering knuckles - noted for their ability to pull the king screws out of the aluminum knuckles and destroying them ] Ive decided to give this Hyper SS style suspension a go and see if we get a bit better durability. At the onset Im a bit skeptical of their robustness and the metal of their CVD/Universals - so I may try another suspension system altogether [ LOSI 8ght Buggy ] - and as a last resort - run the Hyper 7 buggy "stuff". Also to note - the ackerman rack for the Hyper 7 / 8 / ST Pro is NOT compatible with the stock Hyper SS steering turnbuckles and rod end design. Improvisation is needed here. Diffs first ... then modification of the parts. Body will be AE SC8 - pretty standard fare there ... Tires - Proline Badlands 2.2/3.0 Wheels - ??? still looking Still baffled by - what front and rear bumper system to try and run ... Hyper 8SC ? Still on the hunt - suggestions appreciated. If anyone has the interest - they can peruse many of my other long ago RC builds - especially my custom race truggies from back in the day [ Tazer PRT ] at my old photobucket albums: http://s27.photobucket.com/user/socalrc/library/?sort=3&page=1 [ Enjoy old school RC **** - some of them ] Updated Build Parts List: Chassis - Hyper ST Pro Gearboxen - Hyper 7 / ST Differentials - Hyper 8 Spider Meal cased diffs Center Spur - 48T F/R Diff - Ring Gear - Hobao Spider 6 hole - 43T F/R Diff Pinion - Hobao 13T Radio Tray - LOSI 8T Servo Mount - Hyper ST Rx Tray Box - Hong Nor XR conversion - Ultra LX2e Motor Mount - Hobao Hyper SS buggy Rear CNC Uprights - Hobao Hyper 9 - Ebay Center Driveshaft - Hobao Hyper ST Pro F/R Driveshafts - Hobao Hyper 7 / 8 Shocks - Hong Nor Jammin Big Bore 16mm Rear Upper Camber Links - Mugen MBX5 buggy [ any will work - will change to Hyper 8 when they arrive ] Captured Hing Pins - Front - Mugen MBX5/6 Rear CEN Racing [ ebay ] large truck - front and rear hub lower arms Jammin buggy Will keep updated as I add new stuff... Thanks for watching Sputty

Latest revisions .... 3/26/15. Here's the diff pinion gear and other misc on ebay for the Hong Nor diffs: [ 45T Ring Gear ] http://www.ebay.com/itm/X2-CRT-Spiral-Bevel-Gear-Small-10t-XT-27-RC-WillPower-JAMMIN-OFNA-Hong-Nor-/191454303977?pt=LH_DefaultDomain_0&hash=item2c9390d6e9 http://www.ebay.com/itm/380986650269 http://www.ebay.com/itm/OFNA-Nexx-8-T-Truggy-F-R-Differential-Bulkhead-Ring-Pinion-Gear-Jammin-X1-X2-CRT-/141610003537?pt=LH_DefaultDomain_0&hash=item20f89d2c51 Add the X2 - CR Buggy / Jammin X2-CRT truggy / Nexx8 T truggy to the list of usebale diff parts / sources for the Hong Nor replaacements. In a pinch DM-1 / Nexx8 Bugg misc parts can work - just not the right gearing for truggy with their Ring/Pinion - but I bet if youre running electric - you could center diff pinion gear it to run solid. http://www.ebay.com/itm/DM-ONE-Steel-Large-Bevel-Gear-43T-X1-17-RC-WillPower-JAMMIN-Hong-Nor-OFNA-/310901166202?pt=LH_DefaultDomain_0&hash=item486327507a Hong Nor Manuals: - http://ofna.com/manuals.php Jammin X2 Truggy Ring Gear - ofna part no: 41031 = 45T Ring Gear / Spiral Cut - http://ofna.com/pdf/34964-X2-Truggy.pdf Nexx8 T Truggy Ring Gear - ofna part no: 41031 = 45T Ring Gear / Spiral Cut - http://ofna.com/pdf/34951-Nexx-8T-Manual.pdf Jammin X2 Buggy - ofna part no: 41031 = 45T Ring Gear / Spiral Cut - http://ofna.com/pdf/34958-X2-BUGGY.pdf Nexx 8 Buggy - ofna part no: 40517 = 43T Ring Gear - http://ofna.com/pdf/34949-NEXX8.pdf DM-1 use the same 43T Ring Gear - you'll have to see for yourself the diff pinion tooth counts for gearing. ================================== Here's the Hobao Ring Gear for truggy [ 43T ] - take the main ring gear OFF a hyper 7 diff and put this on. Be sure to use the stock HYPER ST F/R diff pinion [ 11T ] http://www.ebay.com/itm/OFNA-HOBAO-Truck-HyperST-M7ST-Parts-Crown-Gear-43T-86001-RC-WillPower-/141227179628?pt=LH_DefaultDomain_0&hash=item20e1cbbe6c http://www.nitrohouse.com/Gear-Crown-43T-Hyper-st_p_6102.html http://www.nitrohouse.com/11-Tooth-Pinion-Gear-for-Ring-Gear_p_6103.html

Not sureif this is too your liking but - I did a test fitment and they do fit ... Early Hyper ST PRo truggy racers were seeking alternatives to the Hobao alum internal spider gears back in the early days. Jammin diffs were found to fit - the whole diff cup outdrives etc... The newer Hong Nor / Jammin X2 spiral cut ring gear and pinions for the CRT and the Nexx 8 T will work in the Hyper 7 / Hyper ST gearboxen and provide proper truggy gearing if youre running truggy size wheel/tires. I will be using the Hobao alum diff cups and 8 spider gear diff setups in the Hyper ST Pro - with hyper 7 buggy ring and pinions - as Im bulding a shortcourse truck and NOT using MT or large truggy tires. Look like this - and can be found on ebay

Thanks for the tip ... having a hard time locating bead lock or bead lock looking wheels for 1/8th - 17 mm hex and some decent tires - everything seems to be for crawlers now. btw - what was / is the camber issue you were having that needed resolution ? What did fit under the arches mean? Tires not rubbing on the front wheel wells of the body? All it needed to fix that was higher body posts?

Epic - yes the main inspiration! What wheel tire combo is that ? Those are awesome

Whats that truck look like ?

TY ... yes I have ... the PCR versions for the hyper 7 lasted well - the Hyper 8 units - so so ... figured if I couldnt get this Hyper SS style front knuckle suspension to bear fruit [ hold up to bashing ] Id go with some LOSI buggy suspension. If all else fails jsut run it back to Hyper ST Pro truggy ... I actually have 3 builds just like this - so may try a few different styles. Kinda thought it would be rather unique to have a 1/8th SC - Nitro too We shall see

Well Gents [ and I use that term loosely ] The Hyper ST Pro double conversion begins - electric and shortcourse. Been on hiatus for a bit from RC - but getting back into the swing with this build. Taking much inspiratons from several predecessors here on MSUK. Hyper ST Pro Chassis LOSI 8 Battery tray - will make a stab at it first Jammin / Hong Nor Spiral Cut X2 CRT diffs in there currently but will swap out the Hyper 6 Gear Spiders Hobao Hyper SS Buggy F/R Arms Hyper SS cvd driveshafts Hobao Lightweight Diff Outdrive cups Hyper 8.5 CNC Rear Uprights Team Asoc SC8 Shortcourse Body - Rockstar blk w/ stickers working on the rest of the bits yet .... Not totally sold on the Hyper SS suspension and driveline - but giving it a go first as its direct bolt up. Trying to avoid Hyper 7 / ST front steering knuckles. As an owner of many things Hyper - those have given me the most grief over the years.

What Losi 8 model specifically are these trays from ? Thanks for the post

Fantastic! Thank you ... I reached out to him via PM. hope theyre still available

Very well - many thanks for that ... will check into that - and pick one up ....

Good Day Gents spectacular thread you all have going here ... have a few Hyper ST Pro Short Course nitro and electric conversions in the works. Hybrids between the Hyper ST Pro and arms and suspentions of the Hyper SS. New around here. I need advice on the best battery tray solution for a conversion to flashlight. Any insights / part # / links to sellers would be most appreciated. Just moved house, so when I get the garage shop back in order and the many vehicles I have OUT of boxes will post up thanks! Sputnik