11-05-2020, 05:58 PM | #29 |
Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012
Location: Canada, eh!
Posts: 5,091
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11-05-2020, 06:05 PM | #30 | |
Drives: Track prepped 2018 Camaro ZL1 (a10) Join Date: Aug 2013
Location: Victoria B.C. Canada
Posts: 1,376
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Quote:
True, I think i'm carrying more speed through the corners than these guys as well at least partially from better trail braking perhaps
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2018 ZL1; Mag 2650, 2" LT Headers and intake, a bunch of SPL suspension upgrades, YYZ springs, sway bars, APEX wheel and SC3R's
Last edited by GunMetalGrey; 11-05-2020 at 06:25 PM. |
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11-05-2020, 06:12 PM | #31 |
Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012
Location: Canada, eh!
Posts: 5,091
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11-05-2020, 06:13 PM | #32 |
Drives: Track prepped 2018 Camaro ZL1 (a10) Join Date: Aug 2013
Location: Victoria B.C. Canada
Posts: 1,376
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I believe TrackClub has experience with the DS1.11s on a Corvette he used to have, but I have no experience with them myself yet
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2018 ZL1; Mag 2650, 2" LT Headers and intake, a bunch of SPL suspension upgrades, YYZ springs, sway bars, APEX wheel and SC3R's
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11-05-2020, 06:23 PM | #33 |
Drives: ZL1 1LE Join Date: Jul 2020
Location: MA
Posts: 46
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I'm kinda shocked you lost the brakes with the DTC70s and Motul 660.
But then again I boiled Motul 660 in my little lotus Elise, switched to SRF and never had an issue again. My camaro came with SRF and DTC70s and despite having approx 700whp and going from about 145-45 into turn 1 at my local track the brake setup seemed completely and utterly unfazed. I had the Re71s up front singing under braking too, and the tires were greasy, but brakes, brakes were awesome. Cooling ducts should help, even if you weren't completely fading the pads, it would still likely help with pad life. If you're fading them, yes it would help, but the biggest bang for the buck would likely be the shims, if it's the fluid thats boiling. Is the pedal going to the floor, or it's firm but the car's just not stopping in as short of a distance? |
11-05-2020, 06:29 PM | #34 | |
Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012
Location: Canada, eh!
Posts: 5,091
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Quote:
GMG, a pad you may wanna try is DS2500. It should give you a bit more torque without frying things. I think Strano sells them (at good prices). Might be worth a try and see? Cheers! PS Hope Yanbags chimes in here as well re his SS experience. But again, when considering pads one MUST also consider the venue. I had run ST43 which cooked my fluid and almost set my wheels on fire (seriously) on a tight track in just few laps, but they did ok at Mosport where apart from 2 corners out of 10 braking is rather light and a long straight cools things pretty good between laps. So it all depends... |
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11-05-2020, 10:01 PM | #35 |
Drives: 2019 ZLE Join Date: Jul 2020
Location: Dallas
Posts: 136
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For those boiling fluid, how old is it? Fresh fluid is rated at the dry boiling point. Over time, and depending on exposure, the fluid absorbs water and the boiling point drops dramatically to it's wet boiling point. It doesn't take long to contaminate fluid. For example:
Fluid Dry Boiling Wet Boiling Motul 660 617 400 Motul 600 594 401 Brembo HTC 64T 635 397 SRF 608 518 The reason people have good luck with SRF is because it is less hygroscopic than conventional brake fluids - it absorbs less water in a given time. Conventional fluid can absorb moisture sitting on a shelf. The more important number is wet boiling. If max dry boiling is important, be prepared to change the fluid before every event. The negative with SRF is the moisture it absorbs can become corrosive. You need to change SRF every year. Conventional fluid is designed to resist corrosion and can sit in the system for much longer periods. but it will be reduced to it's wet point Like everything related to tracking a car, there are trade-offs. I like Brembo HTC 64T for its low compressibility and high dry boiling point. Gives you a firmer pedal. But I will be changing it a lot more frequently due to it's relatively low wet boiling point. Link to a comparison of all the major brands https://thebuildjournal.com/tech-gui...parison-guide/ |
11-05-2020, 10:07 PM | #36 | |
Drives: Track prepped 2018 Camaro ZL1 (a10) Join Date: Aug 2013
Location: Victoria B.C. Canada
Posts: 1,376
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Quote:
This only happens to me when I don’t take a 40 minute break between my 20 minute sessions I’m also using Goodyear super car 3R tires in 305 front and 325 rear widths, which I understand to be the stickiest non-slicks you can buy, Which will definitely allow the brakes to work harder than with RE 71s The car gives me a warning on the corner before the corner where the pedal goes to the floor by not stopping very well, on the next corner the fluid boils... the first time I chose to ignore this and almost crashed the car, the second time I did not ignore it!
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2018 ZL1; Mag 2650, 2" LT Headers and intake, a bunch of SPL suspension upgrades, YYZ springs, sway bars, APEX wheel and SC3R's
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11-05-2020, 10:14 PM | #37 | |
Drives: Track prepped 2018 Camaro ZL1 (a10) Join Date: Aug 2013
Location: Victoria B.C. Canada
Posts: 1,376
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Quote:
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2018 ZL1; Mag 2650, 2" LT Headers and intake, a bunch of SPL suspension upgrades, YYZ springs, sway bars, APEX wheel and SC3R's
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11-05-2020, 10:17 PM | #38 | |
Drives: Track prepped 2018 Camaro ZL1 (a10) Join Date: Aug 2013
Location: Victoria B.C. Canada
Posts: 1,376
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Quote:
Once my fluid boiled I should’ve realized it would happen much easier the next time I was on the track, Even after a 60 minute break between sessions it happened again. Does anyone know where to get Castrol SRF?
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2018 ZL1; Mag 2650, 2" LT Headers and intake, a bunch of SPL suspension upgrades, YYZ springs, sway bars, APEX wheel and SC3R's
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11-05-2020, 10:19 PM | #39 |
Drives: 2019 ZLE Join Date: Jul 2020
Location: Dallas
Posts: 136
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11-05-2020, 10:21 PM | #40 |
Drives: 2019 ZLE Join Date: Jul 2020
Location: Dallas
Posts: 136
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Note: SRF comes in 1l bottles. Most others, like motul, are 500ml. Divide price by 2 for comparison
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11-05-2020, 11:01 PM | #41 | |
Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012
Location: Canada, eh!
Posts: 5,091
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11-05-2020, 11:04 PM | #42 | |
Drives: 2020 SS 1LE (previous: 2017 SS 1LE) Join Date: Mar 2012
Location: Canada, eh!
Posts: 5,091
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