277 replies to this topic

[swodem]

Steve, did you run the chassis with the pan horns touching the outriggers?  If you go to the pictures of this years ISRA  Championship race and take a look at the winning team car chassis (a X-25) you'll notice they tried a similar pan set up as the C-43 comes with.  It appears that the rear bite bar uses a single central contact point and the front horns appear to be bent in such a manner that they are not touching the outriggers and the pan is pivoting on the front crossbar.  You'll also notice that the pan was touching the track maybe that's the way to go for better handling.  Congrats on your win it proves the new chassis is a valid contender.

 

I see the single piece of tape, but from the photo I cant see any evidence of it being on a single pivot at the front, nor can I tell if the front of the pans are contacting the T-bar or not

 

Unless you have some other pics!?

 

I don't think the FK class we run powered by PS4002FK would still be fast if pans dragging...not enough HP

[Fast Freddie]

Steve, there is another picture that shows the topside of the chassis.  I'm not saying that the gap between the pan horns and the outriggers would be as excessive as the C43 but a gap may exist allowing the pan to pivot on the pan cross bar.  I have a couple of X25s that I thought I had set up identically and yet they handled quite differently the last time I was at The Track in Gaithersburg, Md.  I didn't realize it until the other day that, in fact, they were slightly different.  One of the chassis had a pan that made contact with the outriggers in the front and a bite bar that made contact with added bulletproofing between the rear tangs.  The other chassis had the front of the pan riding on the cross bar with the pan horns just slightly above (.005)  the outriggers and the rear bite bar riding on added bulletproofing between the rear tangs.  The second chassis handled much better than the first.  I have since gone to a centered pivot point on the rear bite bar of the second chassis as a means to mimic the C43 contact points and in an effort to achieve a faux floating chassis.  I really don't think the chassis pan dragging hurts performance as much as it aides in handling, mainly because it's floating and only contacting the track in the turns. Give it a try and see what you think.

[gotboostedvr6]

I have seen this chassis run good lap times at my track straight from the bag. I digress, If your seeing a dramatic lap time reduction when using this chassis your X25, c24 or c11 isnt setup optimally.  There is no silver bullet in the slotcar world.

[Zippity]

Steve has seen the "top" photo, but here it is for those interested

 

[swodem]

I have seen this chassis run good lap times at my track straight from the bag. I digress, If your seeing a dramatic lap time reduction when using this chassis your X25, c24 or c11 isnt setup optimally.  There is no silver bullet in the slotcar world.

I would agree it's prob not faster than a well set up x25 but it is if they are both compared 'out-of-the-bag'


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[swodem]

top.jpg

 

Anyone know what lead wire this is?

[Rob Voska]

Yellow? 

 

99% sure it's Koford.

[swodem]

I haven't seen any lead wire that comes in twin-core like that

Makes for a tidy car.

No mention of it I could read in Koford's catalogue

[John Streisguth]

That's probably not twin-core, it looks like he has a small piece of yellow heat shrink tubing just behind the retainer, and double-stick tape of the chassis to keep them tidy. Maybe even a drop of glue to hold them together.

 

Am I right Zip?

[MSwiss]

Twin core?  LOL

 

If it was twin core, there would be some evidence of it, where it's "split".

 

It's just glued together.

 

You can see the glue.

[Taylor Davis]

Yes I use super glue to do this as well. makes everything look nice and neat, and stops the lead wire from dragging the track

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[swodem]

Makes for a neat tidy job

[Zippity]

 

Am I right Zip?

 

Don't ask me. I only posted the photo

[Rob Voska]

I watched Anton put 5-6 identical cars together for Team Czech Republic at the words.

[swodem]

I like it. I have another chassis to put together soon so will try this out. Had 20min spare so just made up a 'loom'




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[Frankie Schaffier]

Ran mine in GT1 trim on an Engelmann last night, it worked very good and turned better times than I had with the X25. Let others drive it during practice and everyone's first reaction was "Wow, that car works awesome on this track". Used JK Hawk Retro for motor, 3.6 gear ratio, Wonder tires with about .050 of clearance in the rear. Didn't tape up the pans, didn't add anything under the bite bars, nothing. Didn't spend any time "tuning", just set the flag and ran it. It'll be interesting to see how well it works on a King track.

[swodem]

Patience isn't a virtue of mine. After Xmas lunch, gave the C43 a cleanup and new wiring. I think this TQ stuff might be a little thick but gotta say I like a tidy car


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[swodem]

Was just to try a thinner leadwire, honest! I'm NOT going through my slot box rewiring cars on Xmas day...




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[MSwiss]

Why the huge loops on the Cheetah A?

Anything larger than shown on the Czech Production car is a waste.

[swodem]

Why the huge loops on the Cheetah A?

Anything larger than shown on the Czech Production car is a waste.

Yeah, got it better in the F1 aye!


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[Rob Voska]

Frankie was hitting the egg nog pretty hard that day.     Track was a American Royal.  I ran it & Frankie crash tested it .  Good thing I did my testing first.   Frankie was shocked to find out body's are not returnable for a refund.  I ran it on black lane & thought the tires were just a pinch hard so soft wonder or chem treated might have been better. Track was pretty rubbered up from the ORS race the week before.  Car was really fast in a few places that I did not expect.  End of straight is a tight 180+ deg corner & it went around there really quick to where you had to keep driving it deeper than your head told you to.  Was not as stable as I liked in the donut.  Think the back of the chassis was running so flat the tires were fighting each other just a little.

[Frankie Schaffier]

I just checked the car and it's still perfectly flat, though it didn't really take any real hard hits. The body on the other hand is a different story.

The tires fighting each other... You make me laugh..

[gc4895]

Ok, not a test I wanted to make but here is what happened. My brand-spanking new "A" chassis took a full tilt shot into the wall under the bridge on the king track. It happened between lane changes when the power was accidentally kicked on and my 'troller was hooked up-trigger full pulled against the track. It was a loud "crack" as it smacked the wall followed by an eerie silence as everyone knew what had happened. The turn Marshall hesitantly picked the car off the wall thinking it was finished for the race.

Au contraire. Like the legendary Timex it took a licking and kept on it race winning ways. Other than a chunk out of the left front fender it was all go. I think it's made of tuffer stuff than my Parma flexi 1.

[blue&orange]

Just adding my 2 cents to the discussion.  First, some of the stuff posted here has been really helpful in setup ideas, especially the "official" JK hints.  

 

Second, just bought my new "A" chassis last week, built with a 4002FK for a future series here in PA.  I would echo these observations:  yes, the guide tongue had a slight downward slant, which I think I was able to muscle with a few pair of vice grips; and yes, the rear uprights are wide -- I had to grind the small rings off the hubs of my JK tires to JUST make the tech tool fit.  Might recommend the use of oilites with a flat surface.

 

That being said, the first run with an old LMP body was great.  I have nothing with a comparable motor, but within 10 laps with no adjustments I was running times comparable to my C21/Hawk 7's. The one difference is that with the light-weight C21's I run narrowed tires; after a few test laps with the A/4002FK I switched to full width tires and picked up an instant .2 per lap.

[Kevin Donovan]

I have been reading different series rules.I believe that these newer JK chassis are designed to meet the World rules 83 millimeters, not the old 3 1/4".

 the rear uprights are wide -- I had to grind the small rings off the hubs of my JK tires to JUST make the tech tool fit.  Might recommend the use of oilites with a flat surface.