Here's a video of the car's first run. Boy was I impressed. The car tracked straight, accelerated hard and steered really tight. I dare say in the right hands this car will stand a good chance making it to the A Main in the local races!
enjoy!
Showing posts with label 870c. Show all posts
Showing posts with label 870c. Show all posts
Sunday, November 28, 2010
Sunday, November 21, 2010
Yokomo YZ870C - all ready to race!
Finally my Yokomo YZ-870C is ready to run, finished up some final mods and also a body shell for the car.
Here's a shell that the used car came with. Gave it a good wash and trimmed up some of the cracked areas and it actually came out looking like a decent basher shell. I was told by a friend this looks like a "Eagle" shell from Parma. It looks like it was purpose made for this car given the way it fits with the under-tray.

I like the design of the shell very much although the paint on this one could have been a lot better. Funny thing is, "cab-forward" buggy designs were present even in the vintage era - though I must say the execution seems so much more aesthetically pleasing than the current crop of Bulldog and Punisher shells. lol

As I gave the car a once over I noticed quite a bit of slop in the suspension, particularly where the hingepins go through the bulkheads. I thought of machining some front and rear hingepin braces to take up some of the slop, but the wonderful guys at RC10talk.com suggested this solution - longer hingepins, a couple of balls and a turnbuckle. Nice!

Here's a pic of the car ready to run with lipo batts and a black can motor (requirement of our local vintage event). I also wussed out and changed the elegant stock bumper for a larger RPM one which offers more protection.

Okay so the nice basher shell comes off and here's the car with the Protech shell it's supposed to run - done up in the same paint that I run on almost all my race cars. I got this shell from Mr Lexan and I must say his work is very good - lexan seems to be of excellent quality and the body is well made with proper overspray film too.

Fresh paint, JC tires to fit 2.2" JConcept Caliber tires, RPM bumper, vintage AE gold shocks...

One more pic to go!

Drop me a comment if you like this restoration project.
Here's a shell that the used car came with. Gave it a good wash and trimmed up some of the cracked areas and it actually came out looking like a decent basher shell. I was told by a friend this looks like a "Eagle" shell from Parma. It looks like it was purpose made for this car given the way it fits with the under-tray.
I like the design of the shell very much although the paint on this one could have been a lot better. Funny thing is, "cab-forward" buggy designs were present even in the vintage era - though I must say the execution seems so much more aesthetically pleasing than the current crop of Bulldog and Punisher shells. lol
As I gave the car a once over I noticed quite a bit of slop in the suspension, particularly where the hingepins go through the bulkheads. I thought of machining some front and rear hingepin braces to take up some of the slop, but the wonderful guys at RC10talk.com suggested this solution - longer hingepins, a couple of balls and a turnbuckle. Nice!
Here's a pic of the car ready to run with lipo batts and a black can motor (requirement of our local vintage event). I also wussed out and changed the elegant stock bumper for a larger RPM one which offers more protection.
Okay so the nice basher shell comes off and here's the car with the Protech shell it's supposed to run - done up in the same paint that I run on almost all my race cars. I got this shell from Mr Lexan and I must say his work is very good - lexan seems to be of excellent quality and the body is well made with proper overspray film too.
Fresh paint, JC tires to fit 2.2" JConcept Caliber tires, RPM bumper, vintage AE gold shocks...
One more pic to go!
Drop me a comment if you like this restoration project.
Wednesday, November 17, 2010
YZ-870C update - lipo trays, body shell...
The last 2 days have been very unfortunate ones with regard to my tools... for some strange reasons, accidents have resulted in 1 broken carbide end mill, reamer and machine tap... and 1 messed up drillbit as well.
At least through it all there's been some progress on my 870C. Slow and steady she goes!
Manage to mill out new lipo battery trays as well as stand offs for thumbscrews to hold down the batteries. The tray on the right of the car can be flipped over to swap the battery position for weight adjustments.

Batteries mounted. Barely visible is also the servo mount plate that I made. I didn't want to drill any new holes to mount the servo so I used the existing holes in the chassis originally used to attached the chassis "spine".

Also trimmed out the shell and undertray. Took a bit of fiddling and trimming to get it to fit right especially with the new top-deck mounted. Here's a pic with the shell and Pro-line Caliber tires all round. Starting to look like an 870C now!

Gonna mask up the shell and get it painted.

Some stuff still to finish... wingmount wire, cut and paint wing, glue tires, rebuild shocks, install electronics.
If time allows I'm going to try to mount a rear brace to the hingepins also, not to strengthen it but to remove some of the slop. lol!
At least through it all there's been some progress on my 870C. Slow and steady she goes!
Manage to mill out new lipo battery trays as well as stand offs for thumbscrews to hold down the batteries. The tray on the right of the car can be flipped over to swap the battery position for weight adjustments.
Batteries mounted. Barely visible is also the servo mount plate that I made. I didn't want to drill any new holes to mount the servo so I used the existing holes in the chassis originally used to attached the chassis "spine".
Also trimmed out the shell and undertray. Took a bit of fiddling and trimming to get it to fit right especially with the new top-deck mounted. Here's a pic with the shell and Pro-line Caliber tires all round. Starting to look like an 870C now!
Gonna mask up the shell and get it painted.
Some stuff still to finish... wingmount wire, cut and paint wing, glue tires, rebuild shocks, install electronics.
If time allows I'm going to try to mount a rear brace to the hingepins also, not to strengthen it but to remove some of the slop. lol!
Sunday, November 14, 2010
Finally a top deck for my YZ-870C
One more car to finish up for the vintage event and that's my Yokomo YZ-870C. Some of the great folk over at RC10talk informed me that the front bulkhead was prone to breakage especially where the front shock tower was attached. Their advise? Fashion a top deck to support the back of the tower to take some of the load off the bulkhead in the case of impact.
Took quite some time to measure up everything carefully but I'm very pleased with how it turned out!

Front of top deck with shock tower support. :)

Took quite some time to measure up everything carefully but I'm very pleased with how it turned out!
Front of top deck with shock tower support. :)
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