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Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Tue Apr 21, 2015 9:16 am
by wydraz
Hi All,

I'm proud to be working with Joel Johnson and many of my friends in the hobby (who'll all get credit as we go) to restore Joel's actual 1987 2wd IFMAR worlds winning Ultima to it's former glory. Yes, the actual car.

I'll be recording the re-build here and on facebook in various groups- it'll be great to see it back in Joel's hands :) as it was to see Jamie with his 1990 Egress :D

Lots more to come soon - Joel is just gathering up all he has remaining of the car (he tells me he still has the body thankfully, hopefully it is useable and using the original body will be a nice addition).

Some may know this car used a lot of aftermarket and option parts - once I know what is and isn't there I'll make a list and hope some of you can donate to this epic rebuild.

Pierre did a fantastic tribute car and has already helped a lot, thanks Pierre.

Thanks,

Dan

Image

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Tue Apr 21, 2015 3:13 pm
by TomEG
Looking forward to this!

Tom

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Wed Apr 22, 2015 9:10 pm
by variant45
Awesome!

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Thu Apr 23, 2015 4:48 am
by Jirka
This is going to be one to watch! Hope we will see pics and get information soon :wink:

Jirka

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Thu Apr 23, 2015 10:07 am
by Returning_Jim
SO AWESOME!

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Thu Apr 23, 2015 10:10 pm
by rangerg
Love it, looking forward to this thread.

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Fri Apr 24, 2015 11:04 pm
by alcyon
If am not mistaken, the JJ Ultima was actually closer to a turbo Ultima, with some trinity parts.
As usual, when we bought the Ultima we thought we would get world championship performance out of the box ..
:lol:

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Sat Apr 25, 2015 11:08 pm
by aip47-2008
alcyon wrote:If am not mistaken, the JJ Ultima was actually closer to a turbo Ultima, with some trinity parts.
As usual, when we bought the Ultima we thought we would get world championship performance out of the box ..
:lol:

Not a whole lot of Ultima left after Joel was done. 8) :lol:

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Sun Apr 26, 2015 1:57 pm
by TomEG
aip47-2008 wrote:
alcyon wrote:If am not mistaken, the JJ Ultima was actually closer to a turbo Ultima, with some trinity parts.
As usual, when we bought the Ultima we thought we would get world championship performance out of the box ..
:lol:

Not a whole lot of Ultima left after Joel was done. 8) :lol:
No it wasn't, but then again he was working closely with Kyosho Japan on the development, and we can see a lot of his efforts in the Ultima Pro.

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Mon Apr 27, 2015 9:32 am
by uniquenamehere
very cool, looking forward to see how this works out...

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Mon Apr 27, 2015 10:50 am
by TomEG
There are a few things I really look forward to maybe "finally" get an answer to....

1. How exactly did he cut the Tomahawk body at the rear?
2. Did he/where did he cut the rear bulkhead to fit the cadnicas between the bulkhead and the S32H?
3. Maybe get an exact template of the fibre-glass "half oval" that the front body post is mounted on.
4. The contents of the gearbox (inner and outer). Joel was not 100% sure what type of diff, what size the outer gears were etc.
5. Probably more, that I can't remember right now ;-)

Tom

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Mon Apr 27, 2015 6:08 pm
by losiXXXman
Pierre's done a replica of the 87 Joel Johnson car. here's a link to his gallery. http://www.rc10talk.com/viewtopic.php?f=77&t=30992&hilit=joel+johnson+ultima+replica+1989

Might be of some help. I don't think any cutting of the bulkhead was necessary for the battery to fit, he used a longer graphite chassis by CC/Trinity or something...I have tried to notch the bulkhead on my ultima pro, to get a battery down the centerline, but still cannot get it to fit. If I change to some side swing bellcranks, it may be possible. But haven't yet found a pair to use.

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Tue Apr 28, 2015 2:33 pm
by TomEG
losiXXXman,

Thanks.
I have a pretty decent replica of the WC'87 Ultima myself. But I never really got the cadnicas to properly fit. I do have the Composite Craft/D&D/Trinity chassis.

Pierre's replica has the cells in the "===" configuration, but when I presented Joel with the following picture a few years ago, he couldn't even confirm it actually was his Ultima:
ultima_joel_01.jpg
This picture, however, he confirmed to me was of his WC'87 Ultima, and that the cells in the "||||||" configuration, was what he used in Romsey.
ultima_joel_07.jpg
When putting the cells in that "||||||" config, I can't really fit them between the rear bulkhead and the servo (with the "wing" cut of). It's nearly there, but not completely. I can squeeze them down, but it doesn't feel right. That's why I always wondered if he had dremeled the bulkhead, ever so slightly. If I remember correctly (I will eventually dig up his emails from our long email exchange, that went on for a couple of months) he implied that he might had done just that.

I also have trouble getting the Tekin ESC far enough down to completely clear the rear body mount (on the rear shock tower). It's also nearly there, but not completely. And that's another reason why I suspect some dremeling ;-)

Tom

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Wed Apr 29, 2015 9:51 am
by TomEG
I have dug up the emails from Joel from 2008 when I built my replica, and he wrote that he no longer have the gear box.

So one detail that still would be unclear is the diff used.

Code: Select all

ME: I also have two different sources on the differential used. One claims it to be a standard Ultima geared diff, while the other says it was a ball diff prototype. Could you shed some light on this?
JOEL: This is one I can’t answer definitively.  My guess is I had a Thorpe ball differential in the car.
I decided to trust his guess, so I have a Thorp ball diff in my replica.

Re: Joel 'Magic' Johnson's 1987 IFMAR 2wd winning Ultima

Posted: Thu Apr 30, 2015 12:29 am
by HKS_TRD
IIRC back in the day the Australian publication "Radio Control Car Action" had an article titled"The Ultimate Ultima" in which the author built an Ultima with every conceivable aftermarket part. This was not long after Joel won the worlds and many references in the article were made to the worlds car and what part it had compared to the authors car.
If anyone has this article it may be of help