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View Full Version : Hypothetical situation here.



Glenn
19-10-2007, 06:18 AM
Ok, so I Have a good friend of mine that is about to put his TT in his VRX, engine built, way too much money, good for ~300KW.

Here is my argument.

Brother wants to put some 380 twin piston calipers that are cheap and not necessarily nasty ( me have no idea on the durability or performance of them )

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OR

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Spend the extra dollars and get some brembo's or similiar which was my suggestion, since you spent so much money allready ?


He's calling me out and saying whats the difference, so is there?
Would you spend mega $$$ on a killer motor and then skimp on brakes?

discuss

MicJaiy
19-10-2007, 06:31 AM
I think the 380 brakes would be a good upgrade but not for a car with 300kw

I would say go for the Brembo's but very pricey.

Talk to TZABoy about his brake upgrade. I think he got them custom made to fit from a Corvette.
Found the threads;
http://www.aussiemagna.com/forums/showthread.php?t=38975
http://www.aussiemagna.com/forums/showthread.php?t=40431

RuSSiaN
19-10-2007, 06:40 AM
He's calling me out and saying whats the difference, so is there?
Would you spend mega $$$ on a killer motor and then skimp on brakes?

discuss


If your upgrading too a very high performance engine, its seems smarter to also upgrade to very good brakes to protect that investment, and the drivers overall safety. You dont want something thats gonna give way, or wreck under intense pressure, or that cracks etc etc

You want quality thats gonna stop the power of 300KW, it would be almost like a grandprix car using bendix stock pads.

Go the brembo's thats my personal opinion mate

Glenn
19-10-2007, 06:41 AM
If your upgrading too a very high performance engine, its seems smarter to also upgrade to very good brakes to protect that investment, and the drivers overall safety.

You want quality thats gonna stop the power of 300KW, it would be almost like a grandprix car using bendix stock pads.

Thats my personal opinion mate


exactly my thoughts, once he reads this topic he will change his mind, not that my ribbing allready hasn't allready changed it for him :badgrin:

M4DDOG
19-10-2007, 07:15 AM
Depends how hard he plans to push his car too.
Does he do alot of twisty runs where he needs the brakes alot?
The 380 brakes (if they're the same as the ralliart magna's, i think they are) should be ok, unless he does some stupid amount of braking at 200+ km/h all the time. Brake size shouldn't correlate with power, should go off by how fast you plan to go, but i guess you don't make your car 300kw to drive it "sensibly" :P.

VR33XY
19-10-2007, 07:29 AM
You would be nuts not to go with brembo's I think. If it is not a straight line machine, the benefits of bigger brakes over the feeble 380 size could go on for pages.

Phonic
19-10-2007, 07:55 AM
I think the 380 brakes would be a good upgrade but not for a car with 300kw

I would say go for the Brembo's but very pricey.

Talk to TZABoy about his brake upgrade. I think he got them custom made to fit from a Corvette.
Found the threads;
http://www.aussiemagna.com/forums/showthread.php?t=38975
http://www.aussiemagna.com/forums/showthread.php?t=40431

I agree, the 380 upgrade is alright for a mildly modded Magna, but no way would I personally feel happy with them on a 300kW car. Brakes are one point you don't want to skimp on. :P

thebowler30005
19-10-2007, 08:27 AM
check out the brake upgrades that rpw have the have some that are not too pricey and u really only need to upgrade the fronts :P

thebowler30005
19-10-2007, 08:32 AM
I agree, the 380 upgrade is alright for a mildly modded Magna, but no way would I personally feel happy with them on a 300kW car. Brakes are one point you don't want to skimp on. :P
tzaboys ones are not cheap tweakit at monavale does them not sure how much i looked at this option and i didnt have the $$$$$ cha ching cha ching at the time

MicJaiy
19-10-2007, 08:35 AM
tzaboys ones are not cheap tweakit at monavale does them not sure how much i looked at this option and i didnt have the $$$$$ cha ching cha ching at the time
True but compared to brembos which are double in price. :cool:

Poita
19-10-2007, 08:36 AM
ummm who cares if its a 10kW or a 2000kW engine, if its just for street use the 380 brakes will be fine unless he is doing some illegal high speed stuff. It adds hardly any weight to the car which would be the only factor worth considering for normal street use.
Even in straight line stuff at the local drag joint, the 380 brakes would be fine.

If he is doing track work and getting the higher speeds/repetitive hard braking then the brembos will be worth the investment.

Disciple
19-10-2007, 08:38 AM
Brembos without a doubt. You can pickup a full set of Brembos including calipers, rotors, lines, pads - everything you need for cheaper than that hopper stopper package, and they're fronts only.

mad082 magna
19-10-2007, 08:57 AM
if you are upgrading brakes then you really need to do all 4 rather than just 2. if you only do the fronts, then you alter the bias. by making the fronts more powerful, you make it so less pressure is required to have them lock up. this means that less pressure is being applied to the rear brakes at the lock up point, which can actually make your stopping distances longer (but only if your current brakes lock up easily. if they don't lock up much at all then you would still get a perfomance gain).

how hard you can brake is partly determined by your tyres. grippier tyres mean that you can apply the brakes harder before you lock a wheel.

has anyone thought of adapting a set of 4 piston front calipers and twin piston callipers and rotors from a turbo r33 or r34 skyline onto their car? you can pick them up dirt cheap, and they have the right stud pattern. just take a bit of engineering to get the mounting sorted.

Glenn
19-10-2007, 09:25 AM
When you say TT, is this the engine that has gone to Redline EFI we just finished. If it is - its going tobe a monster.

I'm not at liberty to disclose this information ( at this point hehe ) :badgrin:

Disciple
19-10-2007, 04:39 PM
Considering I am one of the few people to actually drive a 300kw vehicle, I think I can answer this with some experience.

The 380 / ralliart / twin piston brake package front will do the job fine for everything except for consistant race track duty. That is where they break down with lots of high speed consistant braking after 2 - 3 laps. If he is doing this type of work, then brembo's are definitly the way to go.

But if he is just doing street duty or occasional drags then the twin pots are fine. I run my twin pots on a daily basis, and run the brembo's on circuit days only.

There is no need to modify the rear brakes regardless of twins or brembo's, cause under hard braking they do virtually nothing anyway with the weight transfer to the front of the vheicle. I upgraded the rears on my vehicle to the ralliart spec units, and didn't really notice any difference at all under hard braking, but under medium to light braking that is where I felt a small improvement with the twin pots up front.

When you say TT, is this the engine that has gone to Redline EFI we just finished. If it is - its going tobe a monster.
That's all well and good, but as I've already said a set of Brembos can be had for the same price as the Ralliart upgrade - so which would you choose?

Trotty
19-10-2007, 06:20 PM
Brembo's ATW!!!

Just look at what other 300KW cars are using.... What about the WRX STI's? they have some massive stoppers on em, and are they not about the same weight? making 206KW?
300KW is gunna be like GO to HOLY CRAP in no time flat!:noway:

Zedd_D1abl0
19-10-2007, 07:30 PM
My thought is...

If he spends that much money on the goddam engine, he better bloody well get the brembo's.

Not for the stopping power or anything. Its just that if he wants to waste money, he'd better do it properly.

andrewd
19-10-2007, 08:23 PM
my fav quote

"i build my cars to go, not to stop"

i think that was from Mr Maserati

monty_magna
21-10-2007, 10:45 PM
not sure with prices but my mechanic is ex ralliart and said that the twin piston callipers off an evo 4 would bolt straight on

doddski
22-10-2007, 12:21 AM
while i dont pretend to know a whole deal about brakes and whatnot, i do know what they are there for - and how more power potential = greater potential for high speed braking.

and also wank-factor, spent all that money on getting a nice engine put together, think of the extra goodness its going to bring in the maccas carpark :
"yeah i stop my 300kw beast with brembo's"

if so much $$$ has been sunk into the motor, it doesnt make sence not to throw a good amount of $$$ at making it stop.


if for nothing else
Brembo's look good!!
(my 2cents on the matter :P lol)