Motorsport brake fluid
 

Hey guys.

Just wondering what brake fluid you guys are using in track orientated cars?

Ive upgraded my brakes a fair bit lately and im pretty happy with the setup now apart from the fluid. At the last MC sprint i could definitely feel what im pretty certain was the fluid overheating. Towards the end of the day the pedal became noticeably mushy and felt quite un-nerving. The brakes still stopped the car very well, but the pedal feel went to shit. It was like stepping on a turd once the heat got right up there. Im currently running Castrol React dot 4. Only because its pretty cheap and readily available from SCA. And im thinking this is the issue. Once temps cooled down, the pedal returned to its usual firmness.

I dont thnk its pad fade. I had what i believe was pad fade last year with QFM A1RM, and that was different. Once hot, they would have a very noticeable decline in actual stopping performance. I recently swapped to EBC yellow at the front because of how un-impressed i was with the QFM. And put Ferodo DS3000 in the rear in order to get the hydro working properly. And i also upgraded the front rotors to 355mm specifically for more heat handling than the 332mm rotors offered. Front brakes are Wilwood FNSL6R 6 piston, rear are Sti Brembo 2 piston. In all pad changes i have properly run the pads in and progressively heat cycled them before racing.

I used MOTUL DOT 4 (RBF660) in my MPS with only a pad upgrade, it held up great and I never boiled the fluid on the track.

I also used it in my VE SS after the Brembo uprgade and in my DC2. Both preformed faultlessly under moderate

I am currently running Pernite DOT 5.1 in the Forester because it was all I could get on short notice, and it had held up great on several track days in 36 - 38*c heat. It has only just started to discolour slightly.

I will be putting the Motul RBF660 into the clutch and brakes of the Forester when the Penrite degrades too much.

[B][I]Motul 325*C Boil > Penrite 296*C Boil [/I][/B]

Elf htx115 5.1

Motul RBF 600 here...

I have used Motul dot 5.1, Motul RBF600 and Motul RBF660.

All very good.

I recommend any of these Motul products, and suggest you buy whichever one you can get the best deal on.

Cool. Thanks for the replys guys.

Any local stores that carry the motul range, or online the prefferred choice? Is there such a thing as counterfeit motul on ebay etc to be wary of?

Brembo LCF600+

You can get it from Maximums.

[QUOTE=phoenix;836748]Brembo LCF600+

You can get it from Maximums.[/QUOTE]

+1 used on the sprint series no pedal fade at all nothing was really good :)

custard is love custard is life

Motul you can get from motorcycle masters just up the road from maxi's for about $35 a bottle for the RBF600

Alot of the motorbike shops will also stock it

Mao stocks Motul too now.

Auto Pro Canning Vale stock Motul.

using the Perth-WRX mobile app

Project Mu G/Four 335 Brake Fluid
[url=http://www.project-mu.com.au/en/products/other_fluid.php]Project Mu Brakes - Brake Fluid[/url]

Castrol SRF for me generally considered the best fluid also has a high wet boiling point
$150 per litre it want to be good
Also had good results with padgid yellow pads

150 per liter. Damn. Expensive consumables. I generally bleed brakes every 1 or 2 track days. And i pushed trough a good 4-5 liters just trying to bleed the hydro up.

I ordered 1L of the motul 660. $39 per 500ml. I was nearly gonna get the Pmu stuff aswell as thats got even higher boil value again. But ill see how the motul goes first. I dont think i will boil that stuff to easily.

[QUOTE=Bram;836845]150 per liter. Damn. Expensive consumables. I generally bleed brakes every 1 or 2 track days. And i pushed trough a good 4-5 liters just trying to bleed the hydro up.

I ordered 1L of the motul 660. $39 per 500ml. I was nearly gonna get the Pmu stuff aswell as thats got even higher boil value again. But ill see how the motul goes first. I dont think i will boil that stuff to easily.[/QUOTE]

Where did you order from?

[QUOTE=WREX;836837]Castrol SRF for me generally considered the best fluid also has a high wet boiling point
$150 per litre it want to be good
Also had good results with padgid yellow pads[/QUOTE]

If I remember correctly Castrol SRF is DOT5 = SILICONE brake fluid.

Silicone brake fluid is not compatible with regular brake fluid which is glycol-ether based.

They react when mixed and can damage all rubber seals within the brake system.

To switch to (or from) Silicone brake fluid it is recommended to overhaul every component within the brake system and flush all the lines.

[QUOTE=nick73;836849]Where did you order from?[/QUOTE]

Ebay.

Its probably gonna take 3 weeks to arrive and probably knock off. Probably take SCA brand brake fluid, put it in fake motul bottles and charge 500%

[QUOTE=type25;836850]If I remember correctly Castrol SRF is DOT5 = SILICONE brake fluid.

Silicone brake fluid is not compatible with regular brake fluid which is glycol-ether based.

They react when mixed and can damage all rubber seals within the brake system.

To switch to (or from) Silicone brake fluid it is recommended to overhaul every component within the brake system and flush all the lines.[/QUOTE]

Not sure what it is but i have changed 3 car's over to SRF without a problem

This is what I use.
[url=http://gslrallysport.com/au/brakes/brake-fluid/trw-gp600-dot-4-racing-brake-fluid.html]GSL Rallysport - TRW GP600 Dot 4 Racing Brake Fluid[/url]

Have it delivered to my door for under $80. Usually receive within a couple of days of placing order.

[QUOTE=type25;836850]

To switch to (or from) Silicone brake fluid it is recommended to overhaul every component within the brake system and flush all the lines.[/QUOTE]

[url=http://www.castrol.com/en_au/australia/products/cars/brake-fluids/react-srf-racing.html]Castrol React Srf Brake Fluid | Castrol Australia | Brake Fluid - Car Products | Castrol Australia | Car - Motor Oil & Lubricants | Castrol Australia | Products | Castrol Australia | Castrol - Motor Oil & Lubricants | Castrol Australia[/url]



It is miscible with all conventional fluids meeting the US Federal Standards FMVSS 116 DOT 3, DOT 4 and DOT 5.1, ISO 4925 and current SAE J1703. This means that changing the brake system to Castrol SRF is easy. Drain and flush out the conventional brake fluid with Castrol SRF then top up the system with Castrol React SRF Racing. Although Castrol React SRF Racing is miscible with conventional brake fluids, topping up Castrol React SRF Racing with conventional brake fluids will reduce the benefits of the product.

[QUOTE=WREX;836837]Castrol SRF for me generally considered the best fluid also has a high wet boiling point
$150 per litre it want to be good
Also had good results with padgid yellow pads[/QUOTE]

Jamie i buy the srf on my account at castrol. I get it for $110 / litre. Next time you want some just let me know.

Brendon

The Motul 660 that i ordered arrived today. Just in time for sunday

I use Motul 660.