My latest JRX Pro

[Brandon G]

Please excuse the body, it is only on there until I get the mold out of my new one.

[aconsola]

Looks good. The body is in better shape than the ones I've been able to get.

[highwayracer]

Very nice!!!

Are the rear shocks suppose to be behind the shock tower or in front of it? When I purchased my Profirmance kit, it mounted in front of the tower. I don't recall if the jrx pro was the same way, or if it had changed. I remember that the junior 2 had the spacer molded into the rear plastic tower and the SE & LXT came with the spacer.

pro shock location.jpg (10.48 KiB) Viewed 1236 times

pro shock location.jpg (10.48 KiB) Viewed 1236 times

Nice motor btw...I still have my Jr's Choice from the Proformance kit, but I took the label off when I first got it

Regards,
highwayracer

[aconsola]

a proper pro has the shocks on the back of the tower. there is a spacer behind the tower between it and the bulkhead to move the tower forward.
Did the pro-formance kit come with longer shocks for the rear? IIRC The pro came with 1.2(xl) instead of the 1"(l) that was standard on the rear of the xT and x2

[highwayracer]

The pro-formance kit came with the longer rear shock. The x2 rear shocks had to be rebuilt because it required modification to the pistons...and moved to the front of the car.

The pro-formance kit did not come with the rear spacer. I actually moved the tower up front and mounted the shocks behind it because of the geometry. I did this prior to the release of the jrx-pro because I remember using the thick plastic spacers that I found inside of the associated shock rebuild kit. I don't think I even used the losi version until I did a rebuild of my car using the SE rear tower.

regards,
highwayracer

[highwayracer]

Sorry about the quality of the picture...this was a copy that I made of my pro-formance manual. You can see how the shocks were mounted.

pro kit.jpg (84.11 KiB) Viewed 1204 times

pro kit.jpg (84.11 KiB) Viewed 1204 times

Regards,
highwayracer

[highwayracer]

By the way, If anyone has longer rear losi shocks in red, those were the proto-types that were given to a select number of team drivers.

[Eau Rouge]

Anthony's right. Most team drivers and Losi racers spaced forward the rear shock tower .125" to get the rear shocks behind the tower. IIRC, they found it gave more forward bite than the shocks in front of the tower. A "proper" race build would put the shocks in the rear position.

[aconsola]

Sorry about the quality of the picture...this was a copy that I made of my pro-formance manual. You can see how the shocks were mounted.

pro kit.jpg

Regards,
highwayracer

nice pic. Now that makes one more car to build, a converted jrx-2: buggy with long chassis, pro body, shocks in front of the tower, but 5-spoke wheels, and no red plastic steering/antenna parts.
Any way to get the rest of the conversion pamphlet added to the scans section

[aconsola]

Also to the op, bngiles, The pro should have the cutout in the chassis for the large servo saver. As far as I know, the solid chassis was found only in the pro-formance, kit, and the earlier production JRX-T. The pro box and manual both show the cutout chassis.
It is still overall much more correct than my cars, I haven't had the discipline to build a boxart/oem car without aftermarket parts. I'm working on it though.

[bearrickster]

the manual was to big to. anyone who wants a copy email me i will email it to you directly. the chassis with the servo hole is the newer chassis

[highwayracer]

I have to look for my original pro-formance manual. I copeid everything and placed it in a binder (that's what I scanned...so the quality wasn't very good). The original only had 4 pages (including cover).

One more thing to include to the list...gray 86 tooth spur gear . When the pro-formance kit first came out, the colored spur grars weren't out yet. Below is a listing of the colored gears.

Yellow - 82
Purple - 84
Red - 86
Green - 88
Orange - 90
Blue - 92

Regards,
highwayracer

[Brandon G]

Also to the op, bngiles, The pro should have the cutout in the chassis for the large servo saver. As far as I know, the solid chassis was found only in the pro-formance, kit, and the earlier production JRX-T. The pro box and manual both show the cutout chassis.
It is still overall much more correct than my cars, I haven't had the discipline to build a boxart/oem car without aftermarket parts. I'm working on it though.

The chassis that this car came with had a cutout for the servo saver, and it was in really good condition, but I bought this one off Bormac with the desire of having one new. I don't believe I will be cutting a hole in this one to make it truly "correct". Guess I will just have to settle for the small servo saver when I put a servo in.

[bearrickster]

No hole is correct some had it some didnt my original didnt but the new chassis did when i bought a spair i had one of each their both correct just depends on the run date of kit.

[aconsola]

I don't believe I will be cutting a hole in this one to make it truly "correct". Guess I will just have to settle for the small servo saver when I put a servo in.

You could put a medium servo saver in there to get more servo throw(the original reason for needing the large saver over the small) but that would put you in the wrong millenium

bearrickster,
did you build your pro from a kit with a no-cutout chassis? If so, that must have been one of the first pro-kits out, I remember all the ones my friends had back in the day having the cutout. I had converted my Truck into a "pro"buggy and was the only one with black steering parts and no cutout, I also had the 5-link rear hubs with h-arms and front mounted rear shocks.
The replacement chassis were apparently available both ways. With everything being so interchangeable, it is hard to tell what started out as what.