As for the z we might have an engine health issue. When you look at the compression numbers, it doesn't look bad (Cylinder#1 170, Cylinder#2 170, Cylinder#3 170, Cylinder#4 170, Cylinder#5 170, Cylinder#6 170). However, when you compare the compression to the values before the race, it is clear that cylinder#1 is down 20 psi, cylinder#4, 5, and 6 are down 10 psi. I think our overheating trouble on the first day did the damage. It appears to be slight, so let's run it again. So, except for the little trouble with the Z's motor, we look good.
That means the work that is required for the Pointless Race is general maintain, paint and lipstick will take about a day for each car, and we then should be ready for the net adventure. With that said we can switch our efforts into some nice to have.
One item I would like to look into more is the performance of the Z. With the Traqmate we are able to compare the performances of Rubby and Whitey. I have gone through the Traqmate comparing car performance from several races. From that I have found, Rubby's performance still looks to be a little better. Below is set of graphs comparing performances.
This has Rubby (Red, 2012) versus Whitey (Blue, 2014) at Sonoma Arse-Feeze event.
The comparison is complicated as a result of a different turn 11 track layout, so a shift in distance occurs. However, on first review of the graphs at the various high G events, Rubby constantly achieves a higher G load than Whitey is showing. Elevated G load in itself does not mean quicker times, but I think in two spots in this graph, we can see possible correlation with higher speeds.
The first point to look at is at the 2,000 foot distance. This represents turn 3 a left then right up hill complex. Rubby constantly has 0.15 more G loads at apex of the two corners, and it shows up in 10 mph increase speed throughout the complex. Since the following straight is so short the added speed only shows up briefly.
The other spot and more importantly is at the 10,000 foot mark. This point represents the turn nine, right left chicane at the end of the fastest part of the track, followed by an average length straight. The 0.15 more G's carried by Rubby shows up again. In this corner the better cornering resulting in about a 5 mph exit speed out of turn 9. This exit speed is then carried down the rest of the straight and is likely worth about 0.75sec reduction in lab time.
So, now the big question is "how do we get Whitey to increase it's cornering?"
I think the easiest place to find this is in the sway bars. We are currently running stock NA sway bar with front being 26.5mm and rear at 16mm. Seeing if we can find a TT sway bar we would get an increase in the rear to 26mm (the fronts are the same at 26.5mm). Without spring changes, this would have us go in the wrong direction and increase oversteer. The other place to look is the 350zx and 370zx. Both run a 36mm front and 23.25mm rear, but heavy modification is needed to make this work. There is an after market adjustable sway bar that is 28mm front and 21mm rears. New is not Lemons budget friendly, so I'll search E-bay and Craigslist, but have little real hope of finding it at Lemon friend prices. Finally, we could look to manufacture the sway bars which is a lot of work.
We have a month to figure this out to let the fun begin.
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