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  1. ecclestone

    Conductivity Data of Hydraulic Fluid

    Hydraulic oils are not normally rated for dielectric strength.Your supplier for your mil spec products should be able to assist,assuming you are purchasing from the majors. Usually transformer oils are so rated,these are high quality mineral oils, with anti-oxidants and are absolutely...
  2. ecclestone

    Tyre vertical and lateral stiffness data

    Thanks Greg, I was hoping you"d reply on this.Rear squat although minimal could be ,and will be reduced further.Car already runs soft alround and is trimmed with driver adjustable bars Front and rear. Springs are tuned to each track. Stiffer fronts have given excellent turn in, and mid turn...
  3. ecclestone

    Tyre vertical and lateral stiffness data

    I have obtained vertical and lateral stiffness data from our "control" tyre supplier. Racing a 1500 kg sedan, 630 hp V8 on road courses,wishbone front suspension,live rear with a spool. Tyres are slicks and data is given at 32 psi. Vertical Load Verical stiffness 300 kg...
  4. ecclestone

    Running in oils

    I worked as an lubricants engineer with Castrol for many years,The "help" desk was always fieding questions which got referred regarding oil consumption ,either real or imagined on synthetics for run in.It was apparent though that the "Friction modified " oils of the 70's...
  5. ecclestone

    Ethylene glycol as tire stop leak

    Certainly ethylene glycol has a high compatibility to all rubber compounds,you rarely see hose laminating in well maintained coolant systems.The latest coolants contain numerous additives besides the ethylene glycol the main antifreeze anti boil element. Usually they also contain a bittering...
  6. ecclestone

    cylinder pressure vs power

    The sensors you describe are available from Kinsler Instruments, I read an article in Circle Track where Robert Yates used this technology which ,then,was obviously fairly "trick". I recall the HP gain by correcting peak cylinder pressures from cylinder to cylinder was 7HP.How you...
  7. ecclestone

    Ethylene glycol as tire stop leak

    Highgroove, If you are looking for a cheap rubber softener ,good old household bleach is just as good ,and in fact was used by most drag racers to commence burnouts, Oil of wintergreen is also a softener,as long as you dont mind smelling like a football change room.In some countrys tire...
  8. ecclestone

    Racing Damper Optimization

    I have only just picked up on this thread re FWD, You dont say wether you are running aN LSD or open diff.I have been involved with FWD race cars for some years. The main problem always seems to kill the understeer/push on corner exit. Now the driver is usually one of the biggest influences on...
  9. ecclestone

    Engine Oil spec

    I know this is avery late reply,having just joined up with this forum. Modern petrol/diesel engine oil essentially share the same additive system packages.,just used in slightly different proportions. API SJ lubricants have similar requirements for engine cleanlinless as does CH4 diesel emgines...

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