Ran the JJ ultima and well, the rear diff is not a fan of high grip carpet 😂 so we throw loads of money at it in an attempt to make it last longer on track 🤞 follow for more content of the ultima on the track.
Thank you, its great to see real life wear, tear and causalities of these Ultimas. Instead of people turning them into shelf queens or glossing over their frailties. Thanks for sharing part numbers and the handful of tips. Great content.
I've been running a flat piece of less bent up at the front as an undertray on my original replica for years and after the Lakeland classic thought it could do with replacing for the Revival. I bought the same, hoped the sides on the Turbo Ultima undertray would fit on it around the rear section, and also by the time I'd finished trimming it I ended up with a flat plate. Hopefully Steve will come up with a tray that wraps the edges of the chassis at the front then opens up to fit the body sides at the rear.
Wow, you really shredded that diff gear! I guess that did not update that part for modern day power! I am team gear diff but then again I am not a racer. I just love the hassle free, worry free toughness of them. Built it up once and not have to worry about it until much, much later! I am sure if I was any good at driving I may be able to appreciate the subtle tuning and smoothness of the ball diff but that's not me! I really hope the next outing goes a lot better for you and you don't have to come home and wrench on it all over again!
My replica is still running the 35 year old gears that were in it when it got raced every week back in the 80s, and still got through 4 revivals and the Lakeland Classic without failing 😎 😁
some of the parts are in both bags so when you show 4 bags your getting drive axles and diff gears and cases and maybe others duplicated.. looks like you can just order KU7 and get a complete ultima gear diff.
Greetings from Japan! 😁 Great video and very useful. 👍 I'm finally getting around to building my JJ Ultima and hoping that now you've ran it in several races you can give me a little setup advice? My plan is to enter it into a vintage class race on carpet. I've already fitted the gear diff, but now I'm trying to dial in the suspension settings. In stock spec I feel it sits way too high, especially at the front. I put #450 weight oil in the front/rear, went with shock piston "B" and installed the gold springs (hard) all round, but it still feels a little soft and under damped on the bench. Any advice on springs, pistons, oil etc would be very much appreciated. 🙂 Thanks!
I had the slipper as loose as i wanted didnt lift the front, and could brake really late and hard. But the gear diff is better for high grip, ball diff will get fitted when we hit the grass again 😎
Hey mate, can you recommend which premounted 2.2 wheels and tire setups fit this car? Fwiw, I am looking at jconcepts and need carpet setup... just don't know what the fitment compatibility is. Thanks!!!
wow what bad news. if mine blows up like that thats definetly the last kyosho i bought. What a shame, My old turbo ultima diff did hold up forever, how can they ruin the diff to insert one that doesnt hold at all?
I dont thing driving it like i was grass helped 😂 if your running high grip the gear diff is a must. But the ball diff will be back in once we hit the grass track again 😎
@@lo2713 I did initially before I put all together. Maybe better to do the gear diff instead of ball diff but wanted to know how it's assembled together with these parts (UT008, OT221, OT222, OT224B)
@@TheVlaladia i just got the instructions for the rere ultima on line, saves buying them 👍 the gear diff is A great upgrade if your running on high grip 👍
Yeah, sending out the part, when its in stock 🤔 so god knows how long it will be ? But wont need it till we head back outdoors. For now, its indoor carpet season. Roll on April 😂
@@martinhsrc6699 not really, but there was that post saying to run lots of slip on the slipper and upgrade the slipper pads. Nothing in the manual, and like you said. Cars are run with no slipper fine ? At £400 im supprised it let go. But could of been a bad part ? Who knows