Fg Xr6 Turbo Brakes Ok?

[PHANTMXR6]

[PAH]

The stock brakes are an embarrassment for a car of this weight and power - the scabs should at least offer a hypo brake option.

On one hand, brakes the size of pizza pans are a waste because the degree of retaradtion they provide is rarely used in (sane) street driving. That's a bad argument, because the logical extension is that we don't need cars that run sub 14 second quarters.

On the other hand, I'd hate to be behind a car that stops from 100km/h in 38m if it takes me 42m. You guys say that DBA 4000 rotors and nicer pads work well. Fairy nuff.

PAH

[corpex]

Was waiting for Mr Positive to pop his head up.

Compared to anything else on the market in this price range, they are awesome.

That maybe true, however I do agree that their should be an option to upgrade from factory.

[Guest]

there is. its called the F6

Edited 04/02/09 03:59 AM by Ford_esky

[aiboart]

Hi Guys,

I fitted DBA slotted rotors to my Commonwhore SV8. Be careful what pads you use with DBA rotors.

I phoned DBA for advice on pads when I bought their rotors. The DBA tech advisor warned me that some pads are not real good at disipating heat, leading to extra heat in the rotors that can cause cracking. Contact DBA if you want to check my memory. http://www.dba.com.au/contact.php

Heading the advice, I fitted a set of heavy duty Bendix pads. They grip well when they're warm but they're a tad ordinary when they're dead cold for the first stop in the mornings.

PAH

I have used BA Factory Premium pads ($290?) with DBA5000. Head Rating A+, Heart Rating A++

Really fantastic in general, no upper limit detected in this combo.

Some minor loss of low temperature friction when very cool say in mid winter or on initial application after a long cruising run. This results in slightly non linear retardation rates that build up throughout the braking maneuver. The non constant braking may actually make the brakes feel more impressive than they really are in reality over all. (slight changes in G's are more apparent to the body than high but constant G's) Non linear retardation also means that the driver needs to modulate braking force in complex situations. The analogue is trying to modulating throttle in mid corner in an engine with a lumpy torque curve (tricky).

Make no mistake this is a brilliant combo and I love it.

I am now trying Ferodo DS2000 ($179) with DBA5000. Head Rating A++?, Heart Rating A+?

This was an attempt to improve on the Facotry Premiums.

The result is interesting. On the face or it, or more accurately, the or the bottom of it, the pad has way more retardation when cold but seemingly less retardation when hot. Max G is dead constant once weight transfer has been achieved and this is at any speed and at at any pad temperature.

This is consistent with Ferodo's test data. It is is also very boring. Boring however is is excellent for drivability and real world performance.... Getting high instant retardation early in the braking sequence has way way more effect on shortening the braking distance that maxing out the Fc and breaking traction late in the braking sequence. Furthermore having a dead constant Fc means that you can control the braking forces with great precision which in turn has a profound effect on car control.

To be fair I have not had the opportunity to test limits in these but I suspect they just keep going and going to 650C, just as the Ferodo test data says they will (Their other data seems to be spot on to date). By way of comparison, 650C is an exceedingly high temperature for brakes. The DBA5000's have a paint code that allows you to measure the maximum saturated temperature of your discs. My Factory Premium pads reached at 450C on the last set of DBA5000 discs.

So what? Well, what I really needed to do to get through the cloud of perceptions was to get both pads doing some runs with a G-Tech.This would have shown the true braking distance of each pad over a variety of conditions. It would have also demonstrated the performance of the pads within the actual braking sequences.

Regards,

aa

[Smoke them tyres]

How could anyone rely completely on what the bought off motoring press says? Some would make good politicians.........look at what they have said about the opposition's product sometimes only for customers to find out it bore no resemblance to the truth.

The disc diameter, thickness and caliper of the std setup looks fine so any issue of reasonable retardation must be with the pads (hydraulics aside).

I have always found the best pads are the one's with a good copper and brass ratio in them.....good at all temps and easy on discs.

Metal pads might work ok, but they are basically compressed metal shavings (scrape a screwdriver across one)....very hard on discs.

Ferodo's have usually been a good choice.

[Smoke them tyres]

I am surprised that even with the Brembo package that the discs are still one piece (Expensive Daewoo do no different with their setup either).

Evil F6, as for the Falcon's std brakes, have a look at what you get with either japanese cars (pissy front discs and drums on the rear....laughable) and some so called premium priced euro cars (now for what you pay with them, the brakes are a complete embarrasment....$100k+ and no 4 pots....what a ripoff).

[Evil F6]

Was waiting for Mr Positive to pop his head up.

Compared to anything else on the market in this price range, they are awesome.

Ah the fanboy speaketh.

[Evil F6]

I am surprised that even with the Brembo package that the discs are still one piece (Expensive Daewoo do no different with their setup either).

Evil F6, as for the Falcon's std brakes, have a look at what you get with either japanese cars (pissy front discs and drums on the rear....laughable) and some so called premium priced euro cars (now for what you pay with them, the brakes are a complete embarrasment....$100k+ and no 4 pots....what a ripoff).

Not many of them weigh 1800kg and have 270kW. If we were talking about them I'd tell you their brakes are sh*t too. I've got a Golf series V and the brakes are crap. And the commodores are no better, the brakes in an SS are sh*t as well.

Too many people want useless crap in their cars and could careless about the most important component of the car.

Edited 04/02/09 11:40 AM by Evil F6

[tab]

Everything is crap...makes you wonder if it's worth living hey???