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PI - 9 and 10 November - Aust Supersprint Championship


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#61 redrbzed

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Posted 17 November 2013 - 03:52 PM


Box is a standard RB25DET with a short shift, and diff is 3.7.

#62 Ledge

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Posted 17 November 2013 - 04:01 PM

I am sorting out a diff now for when I come over to the island. Im going 3.9. Buy what your car is doing I would say
3.9 will be spot on

#63 redrbzed

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Posted 17 November 2013 - 04:15 PM


I think it might be pretty close, I change gears about 8k yours sounds like its got a few more revs to play with.

#64 Ledge

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Posted 17 November 2013 - 05:17 PM

Yeah my light comes on at 85, could go to 9 if I wanted.
looking forward to coming over there.  Hopefully early next year

#65 dat2kman

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Posted 17 November 2013 - 05:58 PM

Lovely wide spread on box ratios, nice low diff ratio, helps with good rpm drop to really use the "pull" on each upchange.
Less gearchanges per lap too.
Not a overly high top speed on the datalogger, but plenty of "get out of the corner" grunt

As opposed to a m/a engine, shuffling through gears, working out which diff ratio, not allowing too much rpm drop on upchanges,,,,,

#66 Lurch ™

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Posted 17 November 2013 - 08:25 PM

Yeah my light comes on at 85, could go to 9 if I wanted.
looking forward to coming over there.  Hopefully early next year


Just watch out for rouge Lamborghini's...

#67 260DET

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Posted 17 November 2013 - 10:02 PM

Yeah my light comes on at 85, could go to 9 if I wanted.
looking forward to coming over there.  Hopefully early next year


If you have not been to PI before get as much practice as possible, apparently Fridays are sometimes available before a weekend's racing. Maybe I'm one of the few who has had problems learning how to go fast there but the more laps the better anyway.

#68 260DET

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Posted 20 November 2013 - 09:44 PM

Sunday drive by me.



#69 Lurch ™

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Posted 21 November 2013 - 08:29 AM

LOTS of timer to be made up... well... everywhere Richard.

Traffic was a bit of an issue though...

#70 dat2kman

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Posted 21 November 2013 - 10:19 AM

Traffic! What traffic?
I get plenty more traffic.
Painfull lines in some corners, and the hide to criticise what i do!
Waldorfing.

#71 260DET

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Posted 21 November 2013 - 06:37 PM

;D Good or bad, I do what I do, enjoy it and try to do better next time.

#72 260DET

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Posted 29 November 2013 - 06:02 PM

Looking at getting a 'in your face' digital speedo, mainly for Bathurst and PI, to try and get respectable times. Turn 1 at PI for example, 180kph seems to be the go, a speedo just below the driving line of sight I reckon would gee me up to try 180. Jason has a point, racing in close company stirs you up which translates into faster lap times.

#73 dat2kman

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Posted 29 November 2013 - 06:21 PM

On the LHS of yourr dash binnacle, the moving up and down lights,,,,, engine rpm/shift now ya sill bugga thing?
Using Peter Ogden's gear calc program, ( free download) print out the chart, once you enter the parameters.
Depending on which gear, you will know, based on rpm, your actual speed.
It's a periphery eyesight thing.
The last thing you will want is some big thing in your face, distracting you, as you look for the flick wide then tip in, into Caltex.
Gear it as you had it for PI, the top speed you should have hit ( i didn't notice your lights flickering!!!) under the start finish line bridge at PI, will be the same speed between second hump and Caltex chase tip in.

You go chading top speed, your ability to run up and over the Mountain will be crap, the exit of all bar the five deviations from Skyline to Forrest's, are all uphill exiting corners.
Forsake top end, for better corner exit.

Bah, what the eff would I know!




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