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Basic but mandatory track mods help needed.

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Old 01-17-2012, 08:08 PM   #31 (permalink)
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Old 01-18-2012, 10:37 AM   #32 (permalink)
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I got in touch w the guys at Robispec (regarding a replacement rear strut bar). Their racing Z was destroyed on Button Willow. They are willing to fabricate a bar just like the one they had in the MotoIQ article. The problem is he needs a Z to reproduce the master bar before making more. Apparently the one they had was a prototype. They are located between LA and Vegas.

The reason I am interested in this setup is that it replaces the factory bar with a much stiffer one, fits a harness, and doesn't obstruct my rear view (daily driver car). Plus it just looks badass! They will powder coat it too.

Any interested parties?
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Old 01-18-2012, 11:24 AM   #33 (permalink)
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^ one thing to consider is that some sanction bodies (like NASA) assign points to a rear strut bar replacement and even more if it has 3 or more connect points (which a truly strong bar would). If you plan to TT or race, something to consider. Also, IMHO the OEM setup is pretty stiff already.
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Old 01-18-2012, 04:30 PM   #34 (permalink)
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One final point re oil temps .... I fitted a sump extender and carry 6.5 litres of oil in the sump as a consequence, together with a 19 row oil cooler. Even in 38 DecC ambient temps, oil temp never goes above 115 Dec C. I also like the idea of a deeper sump/increased oil capacity to avoid oil surge ... in the very early days, my race car was a wet sump and after losing 2 cranks with oil surge, we had no option but to go to a dry-sump, but this car is running 290/625R16 slicks so it has "lots" of lateral grip.

Now that I have a Motec dash logger - I'll plug that into the Z and be able to monitor lateral G's which is the best indicator of propensity for oil surge - it also samples oil pressure 200 times per seconds - another good reason for for a modern logger (have used a DL-1 for 10 years, but only a basic system).

So, I also suggest a sump extender but it does mean that oil temps in colder weather require the oil cooler to be partially blocked off (I use an aluminium foil wrapper), or an oil themrostat be used.
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