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-   -   brake upgrades (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/brake-upgrades-330584/)

mr_sunshine 07-23-04 12:27 AM

brake upgrades
 
I've been lookinging around for a brake upgrade kit for my '89, unfortunately I've discovered that brembo only makes front brake conversions. does anybody know of a company that makes 2-piston caliper, vented+slotted or vented+crossdrilled rotors (or better) brake conversion kits?

Etrips 07-23-04 12:29 AM

2 pistons....? arent the original calipers on 7's 4??

mr_sunshine 07-23-04 12:37 AM

single piston calipers stock.... they are ok for street.. but not much else

koukifc3s 07-23-04 12:41 AM

The TIIs and some n/as had 4 pistons in front. You should upgrade to those and get some good pads. Should be enough for you I'd think.

Etrips 07-23-04 12:56 AM

ah ok was thinking of the t2's thats why

lokeli 08-10-04 01:34 PM

corksport sells a brake kit but it's right around $3k for it all

intro_kz 08-17-04 11:22 AM

if you were going to upgrade to the t2 calipers, would you have to do any other work to the brake system?

GeeHee13B 08-17-04 11:38 AM

i can get really nice stainless steel lines. have them on my car. from Stainless Steel brake Company

RETed 08-17-04 12:56 PM

repeat again...
drilled rotors is not an upgrade


-Ted

Syonyk 08-17-04 01:15 PM


Originally Posted by intro_kz
if you were going to upgrade to the t2 calipers, would you have to do any other work to the brake system?

Technically, no. However, most people snag a TII master cylinder as well. The 4-piston calipers take more brake fluid to actuate, and the TII master cylinder pushes a bit more fluid. Your current one will work, but it will take more pedal travel to stop the car.

-=Russ=-

introVert 08-17-04 04:50 PM

cross-drilled = weaker, only a tradeoff if you have oversize rotors and are fanatical about weight ( totally unecessary on your car )

slotted = prevent fading, but wear pads faster. Look cool, but unecessary if you drive street.

Save your money- stainless lines and good pads are all you really need. If you want to dress it up, paint up the stock four pot calipers.

Done.

import_rican 08-17-04 04:53 PM

^^^ excuse the ignorance, so unless you go with a bigger contact surface (oversize rotors) cross drilled and/or slotted are a waste? I know cross make them weaker... and slotted ate up your pads but they are not beneficial in stopping your car any better?

introVert 08-17-04 05:24 PM

The slots prevent glazing, and merely keep your brakes more consistent during hard use. As far as stopping better, make sure you have good rubber on those rims. The tires actually stop the car, not the brakes. Most other mods are made are for brake feel and reliability, not stopping distance.

MoReRyCe 08-17-04 05:38 PM

i did t2 upgrade.. pretty easy... although my hawk pads that i had on the regular brakes didnt fit :(.. lol oh well no i have hawk pads and they woprk great with ss lines... still have the same cylinder and travel its bad.. brakes way better than my 240sx that i used to have..

intro_kz 08-18-04 10:36 AM

so it's pretty necessary to upgrade to a t2 master cylinder?

ilike2eatricers 08-19-04 12:14 AM

I believe some rx7 vendor offers or used to offer a 929 brake master cylinder upgrade kit for $150. I cant remember who though.

Dan H 08-19-04 12:59 AM


Originally Posted by import_rican
^^^ excuse the ignorance, so unless you go with a bigger contact surface (oversize rotors) cross drilled and/or slotted are a waste? I know cross make them weaker... and slotted ate up your pads but they are not beneficial in stopping your car any better?

Theres a good thread in the suspension/brakes forum or racecar tech forum. I forget which one but basically from what I've read, crossdrilled offer no performance benefits for today's modern brake pads.

dsmrx7 08-19-04 01:54 AM

If slotted/drilled rotors are not beneficial, then why does all the retailers of the product state that "Upgrade" from your stock rotors=better braking, less wear on pads, blah, blah, blah? Also, then why do the $50 grand + cars running slotted/drilled rotors? Anyways, just wanted to share my 2 cents.

Hope I didn't piss anybody off.

RETed 08-19-04 01:58 AM

http://fc3spro.com/TECH/MODS/BRAKES/rotors.htm


-Ted

DerangedHermit 08-19-04 08:39 AM

The way I look at it, slotted and drilled rotors reduce the contact surface, causing less friction. Why would they stop you better?

Rob500 08-19-04 08:59 AM


Originally Posted by dsmrx7
If slotted/drilled rotors are not beneficial, then why does all the retailers of the product state that "Upgrade" from your stock rotors=better braking, less wear on pads, blah, blah, blah?


"blah, blah, blah" is the key phrase here. It's called marketing.

Rob

Bukwild 08-19-04 09:01 AM

well we can go round and round about cross drilled rotors but if they were no good and didn't help with performance then why does Porche and you high end sports cars use them year after year. Porche does put a damn thing on their 911 that doesn't have to do with performance. Its all up to personal liking. If you like them get them. Shit ebay has brembo fronts and bradi rears for 190 bucks a set.

DerangedHermit 08-19-04 09:12 AM


Originally Posted by Bukwild
well we can go round and round about cross drilled rotors but if they were no good and didn't help with performance then why does Porche and you high end sports cars use them year after year. Porche does put a damn thing on their 911 that doesn't have to do with performance. Its all up to personal liking. If you like them get them. Shit ebay has brembo fronts and bradi rears for 190 bucks a set.

They do help, on cars that are made to experience heavy braking. F1 cars use them, but look at how much wear they get. As do Ferrari's. However, our cars are made for occasional high speed runs, drifting, autox, but also city use. It's easier for a company to make regular brakes reducing the chance (almost completely) of fade in regular everyday driving. Think in sensibility, not marketing.

RETed 08-19-04 10:08 AM


Originally Posted by DerangedHermit
They do help, on cars that are made to experience heavy braking. F1 cars use them, but look at how much wear they get.

WRONG.
They used carbon-carbon discs which have no cross-drilled holes on them.



As do Ferrari's. However, our cars are made for occasional high speed runs, drifting, autox, but also city use. It's easier for a company to make regular brakes reducing the chance (almost completely) of fade in regular everyday driving. Think in sensibility, not marketing.
Cross-drilling is something that was a myth that most dumb consumers wanted - supply and demand.
Some cars (i.e. Porsche) used them cause the brakes were already oversized, and drilling them did not cause their braking performance to suffer substantially to worry about.

READ THE (*)(#(&@ LINK I POSTED.
It has a link to the original GRM article that was written a few years ago.
READ IT.


-Ted

RETed 08-19-04 10:09 AM


Originally Posted by Bukwild
well we can go round and round about cross drilled rotors but if they were no good and didn't help with performance then why does Porche and you high end sports cars use them year after year. Porche does put a damn thing on their 911 that doesn't have to do with performance. Its all up to personal liking. If you like them get them. Shit ebay has brembo fronts and bradi rears for 190 bucks a set.

You're another one...
CLICK MY LINK AND CLICK THE MR2 LINK INCLUDED.
It's all explained there.
If you're still going to disagree, then why bother arguing...


-Ted


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