Jellybean Posted February 29, 2012 Share Posted February 29, 2012 (edited) Hey I was out in a R33 GTR yesterday, it was very twitch(dangerously Twitchy) like it was plotting to kill me;I took out my 998cc polo after and it was more fun!! It just got me thinking how the Supra would hold up on track considering the GTR is 4WD. I am not out to be break any records just want to enjoy a day out , hopefully without any mechanical issues. Any advice on setting up the car based on Spec? and any advice on Preperation 2jzGTE 25 Row oil cooler (Sandwidtch Plate Installed too) Project Mu SCR Front rotors Endless CCX pads all round Fuchs ProS 10W50 TRD Bilstein/TRD Springs (Shock is fixed rate by Bilstein; springs Front K=107.8N/mm; Rear K=92.1N/mm) 19 inch Wheels (245 & 275 Rear) Carbonetic LSD (1.5 or 2 way I dont know) I am looking for some advice on Tyre Pressure Oil Temps (Should you really have an Oil temp guage?; I run Water Temp, boost and Oil pressure guages) Will 10W50 suffice? What should you check after a few laps? What fluids do you need to change after a track day? Track is Mondello, Kildare , Ireland National Circuit http://www.mondello.ie//images/data/gallery/217_small_1272555441.png oZ9xPvibq98 Edited February 29, 2012 by Jellybean (see edit history) Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 For starters i'd have a low pressure oil light on the dash rather than a guage Quote Link to comment Share on other sites More sharing options...
Jellybean Posted February 29, 2012 Author Share Posted February 29, 2012 For starters i'd have a low pressure oil light on the dash rather than a guage I have an alarm on the Guage and the standard OEM oil light on the Dash, not do? Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 If your just having a day out then no need really, i was thinking if you were going to be doing it on a regular basis then i'd fit one. Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 (edited) I didn't add any extra guages when i did my track days, i did a brake fluid change and new pads and just checked the other oil levels and off we went (Diff, gearbox and engine) Take a tyre pressure gauge and pump and check your pressures after a couple of laps, not sure on the ideal pressure but i kept mine at 36 front and rear when they were hot ! I also gave the car a lap to cool down before coming into the pits and parking up Edited February 29, 2012 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Jellybean Posted February 29, 2012 Author Share Posted February 29, 2012 I didn't add any extra guages when i did my track days, i did a brake fluid change and new pads and just checked the other oil levels and off we went (Diff, gearbox and engine) Take a tyre pressure gauge and pump and check your pressures after a couple of laps, not sure on the ideal pressure but i kept mine at 36 front and rear when they were hot ! I also gave the car a lap to cool down before coming into the pits and parking up Cool thanks , that what we where doing with the GTR Did you leave her running in the pits or is the cool down lap enough? Do you do a full fluid change after or is it based on condition of the Fluid? Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 I think it depends on how old it is before hand and how many proper hard laps you do. I didn't leave mine running for very long after the cool down lap Quote Link to comment Share on other sites More sharing options...
Wez Posted February 29, 2012 Share Posted February 29, 2012 If you pull into the pits and you have blue discs, melted dust caps and have over boiled your power steering I would say let it run with the bonnet up for a min or two Quote Link to comment Share on other sites More sharing options...
Jellybean Posted February 29, 2012 Author Share Posted February 29, 2012 I noticed the boiled power steering on another guys car , what can you do about that? I presume it is not good Quote Link to comment Share on other sites More sharing options...
Wez Posted February 29, 2012 Share Posted February 29, 2012 I noticed the boiled power steering on another guys car , what can you do about that? I presume it is not good Fit a better power steering cooler, the stock unit is pretty poor. If you have an auto rad on a manual car you could use the built in gearbox cooler, failing that just fit a simple cooler from somewhere like speedflow or thinkauto, if your not in a rush there are loads for sale on summit racings website Quote Link to comment Share on other sites More sharing options...
Josh Posted February 29, 2012 Share Posted February 29, 2012 Get some smaller wheels as the 19s won't be the best for handling. If you have stock UK brakes, then gets some stock 17" wheels. Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 Get some smaller wheels as the 19s won't be the best for handling. If you have stock UK brakes, then gets some stock 17" wheels. Didn't have any handling issues on my 19's, In fact it handled very nicely Quote Link to comment Share on other sites More sharing options...
Josh Posted February 29, 2012 Share Posted February 29, 2012 Didn't have any handling issues on my 19's, In fact it handled very nicely As well as it would on 17s? Your car looks too nice as is to put crappy stock wheels on Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 As well as it would on 17s? Your car looks too nice as is to put crappy stock wheels on Way better Calum Lockie pictured below took my car out and thought it was pretty good too so that'll do for me Quote Link to comment Share on other sites More sharing options...
Wez Posted February 29, 2012 Share Posted February 29, 2012 Stock 17s or correctly setup 18s for me, the advantage of 18s is larger brakes up front and availability of used slicks In the US some run 18s up front and 17s on the rear, not sure if anyone has bothered here though. Which ever wheel you go for get the lightest you can afford. Quote Link to comment Share on other sites More sharing options...
mellonman Posted February 29, 2012 Share Posted February 29, 2012 after your day you will need to change brake fluid for sure first time i done mine had to change discs pads fluid,and had to do a caliper refurb before the next time added dot5 fluid,brake servo stopper was alot better yeah cool down laps before coming in would be nice, extra gauges you wont have time to look at unless on a straight and even then your be going to fast to want to take your eyes off the road. i have heard that you shouldnt put your hand brake on once you come in as it can whorp the discs Quote Link to comment Share on other sites More sharing options...
Josh Posted February 29, 2012 Share Posted February 29, 2012 after your day you will need to change brake fluid for sure first time i done mine had to change discs pads fluid,and had to do a caliper refurb before the next time added dot5 fluid,brake servo stopper was alot better yeah cool down laps before coming in would be nice, extra gauges you wont have time to look at unless on a straight and even then your be going to fast to want to take your eyes off the road. i have heard that you shouldnt put your hand brake on once you come in as it can whorp the discs The handbrake thing is so the pads aren't touching the hot disk which can boil the fluid. Quote Link to comment Share on other sites More sharing options...
Wez Posted February 29, 2012 Share Posted February 29, 2012 I never use the handbrake when back in the pits, just take something to chock the wheels to stop the car moving, its also good to move the car slightly so you dont have same area of pad and disc together, this will help prevent warping. Cool down laps with only very light braking is a very good idea as others have recommended, just keep well out of the way from others on hot laps. Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 (edited) after your day you will need to change brake fluid for sure first time i done mine had to change discs pads fluid,and had to do a caliper refurb before the next time added dot5 fluid,brake servo stopper was alot better yeah cool down laps before coming in would be nice, extra gauges you wont have time to look at unless on a straight and even then your be going to fast to want to take your eyes off the road. i have heard that you shouldnt put your hand brake on once you come in as it can whorp the discs I didn't have to change brake fluid or the pads, discs or refurb the calipers ! Dot 5 is also silicon based and doesn't mix with Glycol based Dot 5.1 or Dot 3 or 4 and can be bad for abs systems as it lacks the lubricity of glycol based brake fluid. I use Motul RBF600 which works really well and isn't very expensive. Silicone Brake Fluids In years past, all brake fluids were glycol. Then D.O.T. 5, a silicone fluid having a higher temperature rating, emerged, initially to meet the higher boiling point requirements of racing use. (Race car brake systems include oil-cooler-like heat exchangers and ceramic pads.) Silicone fluid was able to withstand the most heat of any brake fluid, so it earned a reputation as a racing brake fluid. However, silicone brake fluid has properties very different from glycol fluid, and has its own pros and cons. On the advantage side, silicone fluid will not harm paint or plastic, and does not aggressively attract additional moisture as glycol fluid does. On the disadvantage side however, silicone fluid aerates easily. Harley-Davison, one of the sole current OEM users of silicone fluid, warns buyers to let the fluid sit at least an hour before using it. The trip home in the saddlebag is enough to aerate silicone brake fluid until it looks like a freshly poured soft drink. Silicone fluid is also slightly more compressible than glycol fluid, does not change color to tip the user to its moisture content, and worst of all, neither accepts or disperses moisture, making systems using it more corrosion prone, and requiring much more frequent fluid changes. Silicone brake fluid also lacks glycol fluid's naturally occuring lubricity, making it incompatible with the mechanical valving in some antilock braking systems. Edited February 29, 2012 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 The handbrake thing is so the pads aren't touching the hot disk which can boil the fluid. The handbrake doesn't operate the pads, the handbrake operates on shoes on an internal drum machined inside the brake disc on a mkiv If you were going to boil the fluid that would have happened whilst out on track which i suffered on my first track day due to going out with 4 year old brake fluid which had lots of moisture in it which boiled easily under heavy braking at Donington. Quote Link to comment Share on other sites More sharing options...
mellonman Posted February 29, 2012 Share Posted February 29, 2012 I didn't have to change brake fluid or the pads, discs or refurb the calipers ! Dot 5 is also silicon based and doesn't mix with Glycol based Dot 5.1 or Dot 3 or 4 and can be bad for abs systems as it lacks the lubricity of glycol based brake fluid. I use Motul RBF600 which works really well and isn't very expensive. i did i found that i had a siezing caliper,unrelated to the op but can still happen,after 4 hard laps had some very serious brake fad then had to cool down for about the same again, at the end of the day just depends on condition after use if its okay its okay mine was not and its always sergested to change brake fluid after a track day if your giving it the beans, and sorry it was a 5.1 i put in i think i cant even remember now Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 29, 2012 Share Posted February 29, 2012 i did i found that i had a siezing caliper,unrelated to the op but can still happen,after 4 hard laps had some very serious brake fad then had to cool down for about the same again, at the end of the day just depends on condition after use if its okay its okay mine was not and its always sergested to change brake fluid after a track day if your giving it the beans, and sorry it was a 5.1 i put in i think i cant even remember now Doing a track day shouldn't cause you any problems if the braking system is working properly with fluid thats not too old and calipers that aren't in need of a refurb before you get there. I did lots of laps round Silverstone and Donington and had no issues with the brakes, i learnt my lesson after doing my first track day with old brake fluid and 3/4's worn out brake pads. Other than Motul RBF600 fluid and braided lines my brakes were totally stock UK set up Quote Link to comment Share on other sites More sharing options...
mellonman Posted February 29, 2012 Share Posted February 29, 2012 yeah probably needed the work done before to be fair but didnt notice the problem,pads where quiet new did come as a shock when i could hear a pad scrapping but when looking through the wheel at the pad it still had 3/4 left,and none on the other side Quote Link to comment Share on other sites More sharing options...
pedrosixfour Posted March 1, 2012 Share Posted March 1, 2012 Smaller wheels equal cheaper tyres. I'd rather buy 17" tyres with a sane profile than 19" rubber bands. Quote Link to comment Share on other sites More sharing options...
Dnk Posted March 1, 2012 Share Posted March 1, 2012 Smaller wheels equal cheaper tyres. I'd rather buy 17" tyres with a sane profile than 19" rubber bands. Stock uk front size 235 x 17's Kumhos are £80 My fronts are 255 x 19's and Kumhos are £100 so as long as you arent doing trackdays on the top brands then its not so bad. Or get part worns from Germany Quote Link to comment Share on other sites More sharing options...
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