TSOA - Holden HSV Sprint
Quite a bit of prep for this meeting including fitting a nice home fabricated strut brace and getting my front rotors machined as they had picked up a nasty warp. Also fitted an oil pressure guage which I was a bit worried would scare me but after an excursion into the sand trap at the last track day and sitting watching my oil light flickering I decided that I needed to know - even if I didn't want to.
This was also my first event with a 4.11 Diff with a Salisbury type LSD rather than my usual Quaife.
Practice went OK getting used to the lower gearing - the strut brace was instantly noticeable with MUCH better turn in - very sharp and solid. Diff was also working really well - just needed some controlled aggression for the short track which demand quite an attacking style - kerb hopping helps! I actually got a better time in practice than in the actual proper timed runs! Fastest non V8 but not quite quick enough for my liking - bit out of practice and the car is now quite a handful changing into 3rd overdrive uphill , flat out on the limit on a left bend - kind of steps out for a good half turn of oppo' at about 80mph - good fun tho' just need a bit of track time to explore the new wheel spin free handling the new diff offers.
Humph was going welll with his new steel rodded , forged piston bottom end and Andy Miller was again the quickest non V8 TR - pic's and Vids to follow
Only issue was my new oil pressure guage telling me that I need an oil cooler NOW!!! I had always been a bit ambivalent to oil coolers as we generally only do 3 laps and I usually run Mobil 1 but looking at the pressure wilt after 3 hot laps especially back in the paddock when all the cooling air stops and the heat sinks in was frankly a bit scarey. After one proper run I threw in the towel as its simply not worth dropping a rod when you KNOW the oils getting too hot - to think I have been in blissful ignorance for the last 10-12years!!!
I have all the fittings for a cooler of my Pi estate but sadly the 16 row cooler is U/S as one of the alloy threads has been damaged and I won't risk such a important part leaking or failing - I have now ordered a 25 Row monster off Think Automotive. This should have sufficient capacity for anything I can throw at it. I will also whip the sump off and weld in a fitting so I can fit the other worry gauge - an oil temperature gauge although hopefully with the cooler this will all be an over reaction.