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Ben Lipman Goo Roo SA Soarer TT manual, plus TT track car
Posts: 3251 Reg: 04-2006
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Monday, July 30, 2012 - 10:26 pm, by: Ben Lipman(Ben12a)
I think the wing needs some more angle of attack. It sits quite flat as is. I was hoping it would be enough, but with no data on the wing it is all guesses. I'll make up some more adaptors with more adjustment range. Currently I am using the ones that West threw in (the uprights sit more vertical in their application). Did it help? Despite the ruined rear tyres I am up about 4kph from testing earlier in the year through the kink(to 196kph) on the same tune.
I went back to my original idea of making a ladder frame out of steel down to that rear box section. That combined with the threaded rod cross pieces have made it a lot more sturdy. Is it the final solution? No. I just wanted to go drive the car so used scrap lying around the shed.
Lap times are comparable to last year (1:22 ish) before my break through to 1:19. I haven't driven much so there is probably a lot more gains in the driver to be had. Plus there is no confidence to go deep with braking when the rear is playing up so bad.
Yes that is my back yard. It does look a bit like a park from that angle. The missus would be flattered. She does most of that work.
I think I may have broken a few Sports Sedan rules. Bonnet, skirts, front bar, guards...
Allan- no data aquisition beyond the racechrono lap timer. I can get a speed trace and overlay laps with that, but that is it. The Haltech PS2000 has some data logging capability, but I do not know how to access it. I was going to get the racepak dash (plug and play with the Haltech) for my birthday but after some recent criticism from guys out at the track about the lap timer/GPS function I have decided to wait to see if Haltech improve it. Apparently no one is getting reliable signal, even in open wheeler cars. I get 7-10 satellites when parked in the garage at the track with my trusty nokia/Qstarz setup. All for less than $160 too...
I am going to check the mechanicals at the rear of the car for obvious faults first, but I am wondering if the tune might be causing the chattering. There have been a lot of changes to the front undertrays, splitters, and a harder pad as well between my nice, deep, reliable, predictable braking package when I ran 1:19 and what I am experiencing now.
I was going to change back to the old faithful Intima SR6300 pads but went off and called it a day. I'd have to go back and look at my notes, but I think the rear end was playing up with the old pads in last test day also.
I'll post up some photos of the wing mounting when I find them on this 'puter. The data drive seems to randomly appear and disappear when it feels like it. Very annoying.
