I put the wrap (almost) on this update quite a while ago now but just haven't been able to post it let alone get it on track yet. I wanted to get this done b/c the fork version that I showed previously was built up from scratch where this is done from the R-Geo kit as intended. I'm posting this separately from the original thread b/c I'll also use this frame as a continuation of the JK premium tire testing.
So here's the original built from the kit in the foreground, next to this newest version in back. Aside from the difference in motor box vs. tuning fork, there are some other differences as well...........
- This new one is 1/8" shorter wheelbase so it's now 3 7/8"
- To do this, the pans had to be shortened and the pan hanger had to be positioned carefully.
- The new one is lighter largely due to the pan "windows" being punched out.
- The new one also uses "Razzo" rails of .055" instead of the original .062"
- The new one also has much less pan movement than the two prior ones.
Just an overall view of the new one. (obviously shot before cleanup....... 
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Rear detail: Not a ton going on here except for the tie bar across the rails right at the bracket face This was to tighten up the flex of the rails right at the bracket face which is a common trait of tuning fork frames.
Nose detail: Main things to note here are the shorter pans in front, and a slightly different stop arrangement. In this case, the inboard pan stops are .055 inside of std 3/32" box tube. I wanted to tighten up the pans and this did the trick. I'll probably add the inboard axle brace (actually just forgot it here) but this is good enough to get it on track to wring it out.
This frame will get tested in the next weeks on NorCal's fastest track, the Hillclimb at Motown raceway in Modesto. I already have a couple of cars that work really well there so I can afford to spend some time with this one. The goal here was to take the original and the home brewed forker and make them a little quicker. Things that I suspect that I'll do with this one..........
- This car will come in @ 90gr w/out body so give or take ~~ 96gr. with.
- ~~ 100 is about as light as I can usually get away with on any of our tracks.
- I suspect that some small weight additions aft of the centerline will happen.
- By removing the pan windows, I can selectively add weight where I think it will do the most good.
Testing follows..........I hope........... 
