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Tracking / Autocross / HPDE / Drifting What these cars were built for! |
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#15 | |
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Also, why anyone runs anything other than SRF is beyond me. Just flush it once a year and call it good. Oh, it was ~500/hr without engine, trans, diff, bearings, bushings, etc. as they were under warranty. BRZ is probably $200 WITH all that stuff. Miata is basically free if I run 200TW. I run hoosier scrubs and they'll probably last 8 hours and cost $400, lol. Brakes last forever (and rotors are $75/set)
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2014 BRZ: WRL Build (GP2) Gutted, caged, coilovers, AP enduro, etc-
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2022 CT5 Blackwing: Stock. 2024 GMC Sierra AT4 2500HD: knock knock knock knock knock... (toy hauler) |
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#16 | |
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#17 |
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I find myself in a similar situation. Currently the GR86 is my only car serving dual duty, about 10-12 track days a year. With the 7k/8k springs and 255 V730s I get pretty beat up commuting (roads suck in many places). This month I’m actually making the car a bit more street friendly at the cost of speed on track, going back to softer suspension and SX2s. I think I may have more fun with a dedicated track car and leasing a cheap daily. My budget would be about 20-25k so I could have 5-7.5k left for track prep. That means C5, C5Z06, C6, older S550 or S197 Mustang. The other option is to buy a SS1LE or new Mustang GT PP new if I want to continue with the dual duty route but go faster. Idk. I have giant spreadsheet already made up calculating out consumable costs, depreciation, financing foster, everything lol.
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#18 |
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Castrol SRF: 310°C/590°F dry and 270°C/518°F wet.
Endless RF-650: 323°C/613°F dry and 218°C/424°F wet. Basically, no difference completely dry (you're not going to boil either unless something is very wrong) and almost 100 degrees different wet, where 424 is low enough to be in danger of boiling (but 518 is pretty high). I dont know about Endless, but SRF isn't very hydrophillic either.
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2014 BRZ: WRL Build (GP2) Gutted, caged, coilovers, AP enduro, etc-
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2022 CT5 Blackwing: Stock. 2024 GMC Sierra AT4 2500HD: knock knock knock knock knock... (toy hauler) |
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#19 | |
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Convert the BRZ to track only duty and get a nice daily. Money and performance aside, you'll love the peace of mind of sipping coffee in a a reliable way to get to work .
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2014 BRZ: WRL Build (GP2) Gutted, caged, coilovers, AP enduro, etc-
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2022 CT5 Blackwing: Stock. 2024 GMC Sierra AT4 2500HD: knock knock knock knock knock... (toy hauler) |
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The Following User Says Thank You to GrandSport For This Useful Post: | Will_ (09-14-2023) |
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#20 | |
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#21 | |
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The only compressibility I care about is not compressing vapor, so high boiling point. I've swapped fluids before and can't tell a difference. Quite frankly, I find it preposterous that people claim it makes a difference. Between everything that is changing from tire temps to heat cycles to pad temps to the wind and air temperature, the last thing I care about is compressibility of one brake fluid compared to another. I bet that even at 400 degrees, there is less than 0.01" of pedal travel difference between SRF and Endless. and whatever it is, it's going to be constant anyway. There's just no way I'd notice, let alone it effect anything. Marketing hype and Placebo at best imo.
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2014 BRZ: WRL Build (GP2) Gutted, caged, coilovers, AP enduro, etc-
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2022 CT5 Blackwing: Stock. 2024 GMC Sierra AT4 2500HD: knock knock knock knock knock... (toy hauler) Last edited by GrandSport; 09-15-2023 at 07:04 PM. |
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#22 | |
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The compressibility of the fluid is actually part of pedal tuning for drivers. For drivers who like to crush the pedal, you use SRF for the extra squish. For drivers who like a firmer pedal, you use Endless. Depending on the braking system, you can use fluid choice to determine if the pedal is longer or shorter, when you have no other way to adjust the hydraulic system, or want a change in a hurry. The two are the only fluids used at high level motorsport for that exact reason. The compressibility difference is large enough that you'd see the difference with even just a hand piston. The only folks who can't feel the difference in blind testing are the folks who just sit in ABS all day (in which case SRF is almost always the better choice). |
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#23 | |||
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Here's an external reference with some details - https://www.torquebrakefluid.com/abc.html (the Compressibility section): Quote:
Last edited by Ohio Enthusiast; 09-18-2023 at 02:29 PM. Reason: Added another sentence to the quote to make it clear that the 200% diff in density has a direct relation to compressibility |
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#24 | |
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Whatever it is, it's pretty easy to adapt to it. As I said, there dozens of other variables that are far more significant. fluid compressibility is more or less in the noise, at best.
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2014 BRZ: WRL Build (GP2) Gutted, caged, coilovers, AP enduro, etc-
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2022 CT5 Blackwing: Stock. 2024 GMC Sierra AT4 2500HD: knock knock knock knock knock... (toy hauler) |
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#25 | |
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That said, you're already on SRF. Nothing wrong with sticking with what works, in this case. |
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#26 |
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Yeah, for sure. At this point, I have enough things I'm trying to change on entry. The last thing I need to do is have a new excuse!
There's also a huge value to swapping it once a year and not having to mess with it or worry about it, which is what its extremely high boiling point gives me.
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2014 BRZ: WRL Build (GP2) Gutted, caged, coilovers, AP enduro, etc-
2013 Viper GTS : Tractive Coilovers, ACR sway bars, aero, carbon, exhaust, etc. 1992 NA Spec Miata: 1.6 + 1999 NB Spec Miata: 1.8 w/ all the goodies. 2022 CT5 Blackwing: Stock. 2024 GMC Sierra AT4 2500HD: knock knock knock knock knock... (toy hauler) |
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