9 replies to this topic

[havlicek]

So, exploring the possibilities of a #23 arm a little further, I wound me up this bad boy.  

This one still has only modest timing advance, but I went with 18t/#23. This wind would be impossible on an old Mura blank (certainly with four-layer coils). Here, it was pretty "ordinary", and I didn't have to do any forcing at all. The last pole was just a hair more snug than the first two, but not a problem at all.

Resistance is up from where I would think a #23 ought to be, but it's still stoopid-low at .047 ohms exactly per pole.


 
When it comes back from grind/balance, I'll pop it in to a nifty Trinity can C motor setup... and watch it dim the lights in Fresno.  

[SlotStox#53]

Definitely on a big wire trip, John.

With all these phat wound arms are there any lights left in Fresno to dim?

Looks good!

[Tex]

Coathangar wire.
 
I got out, back in the day, just as 23s were taking over the pro circuit. Glue was becoming all-pervasive (as in "everywhere and lots of it"). It took beaucoup HP to pull through the gunk in the turns and, naturally, the gunk was then carried onto the subsequent straight. I was gone by the time glue spider webs were common down the whole main straight.

[havlicek]

Thanks, guys.  

When arms get into this neighborhood, track power might definitely become a factor. Imagine eight cars with these all starting at the same time.

[havlicek]

I forgot to mention that these lams are by no means the most "roomy" ones out there, and are probably only "average" in that regard. If I had them available, there are lams you could press a stack out of that might make it doable to get to 20 or more turns of #23 wire in four neat layers... but "too much" wire isn't necessarily a good thing at all.  

This is unknown territory for me.

[Taylor Davis]

John,

18-23 deg. is a nominal timing for open arms with 24 ga.

[havlicek]

Hi Taylor,
 
Just to be clear, the "18t/23" here is the wind, as in 18 turns of #23awg (on a .460" long stack), not the timing.

Generally, I always keep my timing in the range you mentioned anyway!

[Taylor Davis]

I was just stating the timing, no ref. to what you were saying. It was just a coincidence that both numbers were 18 ha-ha.

[havlicek]

Cool... I just wanted to be sure, because it was both the "18" as well as the "23".
 
-john

[havlicek]

Finally got the setup done for this bad boy!  I think that's a handsome sonofagun!

 

-john