TRD big brake kit....WARNING

[switchlanez]

Originally Posted by Captain Snooze

Huh?

Think about what bursts more readily: a) steel or b) rubber. Then reread my post and think about path of least resistance.

[Captain Snooze]

Originally Posted by switchlanez

Way I see this is there might be isolated occurrences when people beat on their brakes and the weak links are the lines or connections OUTSIDE the SS braided lines that are bursting.[1] If so, that means theoretically [2] ANY SS line you put will cause failure if you beat on your brakes the same way because of a faulty brake fluid delivery design inherent to every car [3], not to the TRD brake lines. Basically, this car is not SS brake line friendly unless you modify the fluid delivery system up and/or down the chain to match the rated pressure of your SS lines. And the way TRD resolved this is to load the pressure more evenly [equalize] across the delivery system [4] with replacement rubber lines. Again, this is assuming the SS lines cause more strain on non-SS components. [5]

Huh?
[1] Right. Because one reads of bursting brake lines all the time. I mean seriously?
[2] It is not a theory, it is a hypothesis.
[3] What is this "faulty brake fluid delivery design" you speak of?
[4] "load pressure more evenly"? Applied pressure is the same throughout the system.
[5] The pressure achievable is determined my your leg muscles independently of the type of flex lines fitted.

[Asian Delight]

Originally Posted by husker741

Good thing most people can't afford the fucking brakes.

HHAHAHAHAHA! this made my day. I agree

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[switchlanez]

Originally Posted by Captain Snooze

Huh?
[1] Right. Because one reads of bursting brake lines all the time. I mean seriously?
[2] It is not a theory, it is a hypothesis.
[3] What is this "faulty brake fluid delivery design" you speak of?
[4] "load pressure more evenly"? Applied pressure is the same throughout the system.
[5] The pressure achievable is determined my your leg muscles independently of the type of flex lines fitted.

[1] @nzer hasn't experienced it. Not 100% of owners have this problem.
[2] It's closer to theory because it's based on observed evidence of what has happened, not a prediction (hypothesis) of what will happen.
[3] If things are bursting while fluid is being delivered through the lines, then the design is faulty.
[4] The same pressure is loaded unevenly with more flex in rubber sections resulting in excessively more volume/mass of fluid per length of line in rubber sections than steel sections.
[5] It's still not loaded uniformly throughout. You will experience more resistance with SS lines and not be able to depress the pedal as far compared to when you apply the same force against all rubber lines.

[andrew20195]

Originally Posted by switchlanez

Way I see this is there might be isolated occurrences when people beat on their brakes and the weak links are the lines or connections OUTSIDE the SS braided lines that are bursting. If so, that means theoretically ANY SS line you put will cause failure if you beat on your brakes the same way because of a faulty brake fluid delivery design inherent to every car, not to the TRD brake lines. Basically, this car is not SS brake line friendly unless you modify the fluid delivery system up and/or down the chain to match the rated pressure of your SS lines. And the way TRD resolved this is to load the pressure more evenly [equalize] across the delivery system with replacement rubber lines. Again, this is assuming the SS lines cause more strain on non-SS components.

What you're saying does make sense, but I don't think that's the case in this situation (unless you know of any failures with this system. I haven't seen any yet).

Originally Posted by TRD

when the metal fixed point receives extraordinary pressure which is beyond our
assumed level of bending

It's hard for me to understand this broken english, but it seems to me that they're talking about suspension travel and the point where the hose is affixed to the strut, i.e., they made the stainless lines too short. Or possibly the mounting bracket is too small for the expansion of the braided line.

[Trap63]

Originally Posted by OrbitalEllipses

That should put doubt in the minds of all users of stainless lines, IMHO.

That's right.......
It's not a worth matter. Simply , steel lines are affordable for racing. Some people forget that race car have ordinary check each time they go on track. Some parts are changed with a special timing that on road car noone does.
On my prevoius car (500 AssettoCorse), steel lines goes out of service two times for the same trouble (In Italy we have roads like Calcutta) . I installed Brembo GT with floating ......the big issue isn't steel line but the end of them. The crimping, sometimes can damage internal line. Brembo or not.
Thanks to Toyota....Fiat did not.

I've heard if similar issues with Honda civics and actually was talking to a guy from hel about some Goodrich brake lines that failed on my friends focus rs he had a mountune BBk made by alcon. Basically they found plastic coated hoses over 300mm long would be flexed at the ferrules where the meet the hard lines and they would shatter at the crimps causing potential brake failure. Their solution is rather simple but highly effective was to make the hose slightly longer than they are supposed to be and install thick heat shrink over the ferrules which reinforces them and puts the flex point into the hose after the heat shrink and not at the ferrules. infortunatley due to the shrink ratio of the plastic it needs to be done when the hose is made as you can't get shrink over the banjo fitting to retro fit it.


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[jng]

Just for a laugh... the Toyota authorised dealer in Singapore has the list price for the TRD BBK at SGD$32,888 (US$26,000). No typo.

Link.

[troek]

I wish i could afford all the trd parts, i guess i just have a hard on for them, even when i know u could get same or better products at a better price.

[dradernh]

Originally Posted by jng

Just for a laugh... the Toyota authorised dealer in Singapore has the list price for the TRD BBK at SGD$32,888 (US$26,000). No typo.

Lived in S'pore. Most here would be astounded at the Singaporean car-pricing/owning/'end-of-COE' experience (this was in the 90s, so maybe it's different now). Only thing cheap there that I wanted/needed were the hawker stalls - the nice weather was free, tho'! lol

[Dezoris]

Every company who manufactures the highest quality performance parts will tell you one thing about them: "Increased maintenance and shorter service intervals." Just a fact of life.

There are some very high quality SS lines like Speigler who have rotating fitting, race experience, coatings etc. But even they will tell you that you need to inspect the lines if you are piling on miles or racing.

From an OEM perspective like TRD/Toyota they can't sell a product for a mass produced car that can't handle extended service intervals without liability.
In that case the variable is the installer and the supplier of the SS lines, and they probably saw early on their techs not doing proper installations and had some failures and got smart.