39 replies to this topic

[Jay Guard]

Something a little different, thought this might be interesting for some.  

 

With this chassis you can adjust the weights trackside with your tire tool without even taking the body off, and they can even be adjusted between (or during) heats in seconds. Great for back-to-back comparison of different weight locations. This is something of a proof-of-principle prototype and the next version will probably be a good bit more elegant.

 

 

[Matt Sheldon]

Great concept and thinking, Jay.

[Greg VanPeenen]

Nice, Jay.
 
Would be great for a test vehicle. Love your advanced thinking.  
 
Nice to see someone who is not stuck in the past.
 
Regards,
 
Greg VanPeenen

[Pablo]

       

[MSwiss]

Very cool.

Looks like the weight adjustment is painless.

What do you stick in the hole to lift the wire and move the pan?

A piece of wire, or a small screwdriver?

[SpeedyNH]

Way cool.

Tire wrench?

[Jay Guard]

Mike:

 

You can use your tire tool (.050" allen) or just a piece of .062" wire with a flat end. I meant to say "tire tool" as opposed to "tech tool" in my first post (which I've changed).

[havlicek]

Very cool concept, Jay... and overall chassis, too! Being able to shift the weights asymetrically makes it even cooler!

[Bill from NH]

Jay, why six weight position notches on the right side and eight on the left? Are there no tracks where you might use a neutral setting?

 

It's a neat idea, hope it works out well for you.

[slotbaker]

Looks like left side is adjusted long, and right side short, so could be same number of adjustments either side.

Just showing possible mix of adjustments?

 

Nice idea.

[Jay Guard]

Bill:

Steve King got it right in his response, there are an even number of adjustments on both sides. In fact there are quite a few you can't see that are covered up by the sliders.

 

Weightshifter prototypes 1.0 and 2.0 had single movable weights on each side and I found that you sometimes wanted weight both front and rear hence the two independent weights on a side now. Of course the weights can always be moved next to each other and adjusted as one if you so desire.

[Bryan Warmack]

Awesome build!

[Eddie Fleming]

OK, my question is: How many people are trying to build one of these now that the idea is out? 

 

I am not. Great idea, Jay, 

[Dominator]

Very cool, Jay!

[JerseyJohn]

Wow. Very innovative. Soldering work is beautiful.

 

jj...

[Pablo]

Jay, I'd love to know approximately where the fore/aft balance point is with the shifters in their central positions.

Don't know if I worded that correctly? 

 

The more I look at it, I have to think this is going to catch on big time  If you go public, I'll buy lots of stock 

[Jay Guard]

Thanks Pablo!  I'll check and see where the balance point is at "center" (what ever that is) but since it can be so easily changed it's kind of a unknown  point, nonetheless I will get it for you.

 

And yes,  it is really cool to be able to change the weight balance on-the-fly to handle changing conditions, easy to change even between heats with just a tire tool, it really is just that easy.  As for going public with an IPO you'll be the first to know.  Maybe they'll call this one a "J-Car". 

[Jay Guard]

OK, my question is: How many people are trying to build one of these now that the idea is out? 
 
I am not. Great idea, Jay, 

Hi Eddie:

Yeah, there are a lot of "fiddley bits" (as the British say) to this one as it stands.  

But, as I said, it is a bit of a working prototype and I have already figured ways to make it a lot cleaner.  Weightshifter 4.0 will be the same concept but much more refined and race-worthy.

I will be testing/running this one at the next GRRR race coming up weekend after next so it will be interesting to see how well it works. Testing on my home track is "encouraging"!

[MSwiss]

And yes,  it is really cool to be able to change the weight balance on-the-fly to handle changing conditions, easy to change even between heats with just a tire tool, it really is just that easy.  As for going public with an IPO you'll be the first to know.  Maybe they'll call this one a "J-Car". 

I think it will be most useful, moving the weight forward, as the track tightens up, especially at big events.

 

With no tire changing in Retro, I think that's an overlooked thing in Retro racing.

 

Mid-race tuning.

 

IMO, I tuned myself on to the podium (barely), at the last two Sano Can Am races.

 

I quickly trimmed / chamfered one tire, with scissors, after running Red, and did it a little more,after Green, going to the locked lane, Blue.

 

With your set-up, you can probably achieve the same thing, clicking the weight up a notch, or two.

 

Also, you might be able to bias the weight, back and forth, on either side, depending on what end of the track you are on.

 

PS-I would come up with a less cryptic name than a J-car.

[Jay Guard]

Mike:  Well Weightshifter does seem a bit long winded but I'm NOT going to call it a "Swiss"!!

[MSwiss]

I was referring to Ken Miles / J-car.

[Jay Guard]

OK, how about a "WSJ"? (Just messing with you Mike!)

[MSwiss]

Much better.

 

When I hear Ford J, all I think of , is an ill fated design.

 

Speaking of messing with the other guy, I'll have to dig up where you thought I was making Retro too complicated/high tech, with my low CG guide. LOL

[Jay Guard]

Hey, anybody can build one of these with just a little piano wire, brass, lead, and, of course, a Swiss motor bracket.

[MSwiss]

And I'm using a nuclear reactor to make guide shoes. LOL.