Vented disks?

[Val]

All year SHO's supposed to have 4 wheel vented disks, correct? How come I have solid rear disks?

<small>[ March 25, 2004, 12:13 AM: Message edited by: Val ]</small>

 

[yamahaSHO]

In 93(I think), the rears became solid rotors.

 

[Val]

yamahaSHO:
In 93(I think), the rears became solid rotors.

Oh this aint cool? Why did they switch to solid? Cuz of bigger rotor size?

 

[NotSoSlowSHO]

There is nothing wrong with solid rotors.

Take a look at high end autos, mainly german autos such as Porsches and BMWs. They all have solid rotors.

BTW, my '89 has vented rotors on all 4 corners. And they are identical, front to rear.

Dirt cheap to replace

 

[Val]

Yeah, its just cool to say somethin like "Yow i got 4 wheel vented disk on my taurus " Well true about German cars, rear disks are usually solid but for the front ones, even lil 318i has air dams in the bumper for cooling them front vented disks. So 89 rear disks are same size as 93-95? If I happen to replace them I might rather get vented, I can get them dirt cheap 2, I work at AAP wink

 

[yamahaSHO]

Val:
Yeah, its just cool to say somethin like "Yow i got 4 wheel vented disk on my taurus

Having a Yamaha in your Taurus is not enough??

Last Porsche I saw had vented all the way around... And the rears were much bigger than my fronts wink

 

[NotSoSlowSHO]

Val:
So 89 rear disks are same size as 93-95?

No. Or at least I dont believe so shrug

'89 rotors are exclusive to '89 SHOs.

It is an exclusive club, sorry finger
We do have vented rotors on all four corners naughty

 

[Val]

yamahaSHO:

Val:
Yeah, its just cool to say somethin like "Yow i got 4 wheel vented disk on my taurus

Having a Yamaha in your Taurus is not enough??

Last Porsche I saw had vented all the way around... And the rears were much bigger than my fronts wink

Hehehe enough kinda. When I say that ppl usually ask me if I swapped a motor or something like "I did not know that Yamaha made engines for cars" oh ... or even worse, its still a slow taurus. But thats why I like SHO's cuz majority think that they are just average old ppls cars naughty But those who know about them always compliment me on a car. I dont see how vented disks could hurt braking performance...

 

[NotSoSlowSHO]

Vented rotors (of the same size as solids) tend to warp easier simply because there is less material to start with.

although, I have never warped a rotor on my '89, and I drive quit hard at times shrug

 

[Val]

NotSoSlowSHO:

Val:
So 89 rear disks are same size as 93-95?

No. Or at least I dont believe so shrug

'89 rotors are exclusive to '89 SHOs.

It is an exclusive club, sorry finger
We do have vented rotors on all four corners naughty

Im sure that 90 and 91 had 4 wheel vented as well finger My boi tim had a 91 and he said that he had vented on 4 corners. U aint exclusive any more Muahahhaha

<small>[ March 25, 2004, 12:57 AM: Message edited by: Val ]</small>

 

[NotSoSlowSHO]

oh yes we are...

So, got ABS?
Got airbags?

I dont finger

 

[Val]

NotSoSlowSHO:
Vented rotors (of the same size as solids) tend to warp easier simply because there is less material to start with.

although, I have never warped a rotor on my '89, and I drive quit hard at times shrug

Oh duh shud have thought about thickness 2. Vented are a lot thicker than solid rotors, there's no way stock pads will work. Ima gunna replace pads real soon. I bought it with brand new ones and I really hate its braking, lot of sqeacking and stops like a train, my guess is that the previous owner put cheap semi-metallic pads.

 

[Val]

Got airbags?

I dont finger [/QB]

Thats y ur goin to **** home boy finger rofl ... j/k

 

[olympic]

The 89's have the same size rear vented rotors as 90-92's, but they are different(thicker hats) and are not swappable. So yes, it is an exclusive club..lol!

 

[sdpatt]

You cannot install vented rear rotors on those rear brakes with SHOs origianlly equipped with solid rotors. You will need to install the proper caliper brackets and calipers along with the correct pads for those brakes. The rotors were changed from vented to solids because the solids were more than sufficient to provide the braking power needed from the rear end.

 

[snake396]

olympic:
The 89's have the same size rear vented rotors as 90-92's, but they are different(thicker hats) and are not swappable. So yes, it is an exclusive club..lol!

 

[pjtoledo]

sdpatt:
You cannot install vented rear rotors on those rear brakes with SHOs origianlly equipped with solid rotors. You will need to install the proper caliper brackets and calipers along with the correct pads for those brakes. The rotors were changed from vented to solids because the solids were more than sufficient to provide the braking power needed from the rear end.

And the mounting plates,,,between the spindle and the caliper brackets. The holes are about 9mm farther apart on the vented setup. The hubs are also different,,by about 3mm,,,just enough to cause the rotor to crash into the caliper brackets. Once again, the 89s have parts unique to only 89s.

Perry

 

[Porkchop]

I put the 89 vented setup on my car, and I started with drums in the rear .... shrug

<small>[ March 25, 2004, 11:08 PM: Message edited by: Porkchop ]</small>

 

[pete c]

You cannot install vented rear rotors on those rear brakes with SHOs origianlly equipped with solid rotors. You will need to install the proper caliper brackets and calipers along with the correct pads for those brakes. The rotors were changed from vented to solids because the solids were more than sufficient to provide the braking power needed from the rear end.

As is usually the case, scott gives the correct answer (I did too a few years ago, actually). I doubt ford did it for economic reasons as it meant coming up with a new part to stock. On a fairly low production model. The old ones, I believe are identical to the fronts.

Besides the fact that there is no need for vents out back, there is another reason to go that way. Unsprung weight. Weight in general is not a friend to performance cars. Unsprung weight is a mortal enemy.

When that wheel bounces through a *** hole or over a bump, the tire and everything bolted to it must bounce right along. This is a bad thing. This is why manufacturers use expensive aluminum in your wheels and cheap steel elsewhere. It provides the single largest unsprung weight saving. Going to a solid rotor also saves a fair amount of unsprung weight. How much? Not sure, but, I would guess that it could be as much as 3 or 4 pounds. Maybe less, but, seeing as it hangs out as far as it does on the swing arm, it is significant.

The only way I could ever see rear vents being an advantage on a SHO is on a smooth high speed road course with lots of high speed braking and really gummy track tires. A smooth surface would lessen the effect of the extra few pounds bouncing all over the place.

You could also stuff a jag rear end under it. Those inboard vents look sweet. And take care of the unsprung part of the weight. Ofcourse the halfshafts and cv joints needed to hook the brakes to the wheels would **** whatever unsprung weight savings you gained in that set up.

 

[SonicRiot]

Anyone who sees my car is suprised it has 4 wheel discs alone, nevermind vented rear discs.


I don't have ABS in my 91 Plus. I do have a light, though.