928 brake upgrade

[skyhawk5421]

I'm finally willing to admit that the brakes on the 944 n/a suck. I'd like to upgrade but I don't want to spend too much cash. I can pick up a whole 928 parts car near me for the price of what people spend on brake upgrades, but my question is does it have to be an s4? Which models came with the baby brembos? I'll keep searching and hopefully I'll find the cheapest combination of hubs/spindles/rotors/calipers that work

Thanks

[flash968]

before you give up on the brakes, try changing to stainless braided lines, at least DOT4 fluid, and most importantly, change the front to rear bias, increasing braking to the REAR of the car

far too often people put big brakes up front, and what they really need is more rear brake, and adding just front actually makes things worse.

an example of simple brake balancing is on the 968, where changing the stock 5/18 bias valve to a 5/33 transforms the braking of the car, dramatically reduces the nosedive, and flattens out the braking. this results in less heat at the front, and a more balanced grip all around. stopping distances are seriously reduced, as is the amount of braking time in the turns. it also reduces teh upsetting of balance in the turns due to excessive weight transfer

stoptech has a pretty good article on this

[Techno Duck]

What is your problem with the stock brakes? They are actually pretty good.

The baby Brembo's were used on all 951's, S2's and 968's (excluding the Turbo S and M030 equipped cars). Also they were on the 964-993 (excluding S, 4S and Turbo). Not sure what year they were on the 928's (or if they even were), but the S4 caliper is the same as what was used on the 951 Turbo S

Depending on year of your car, you need either '86 951 spindles or any of the late offset 951, S2, 968 spindles. To fit the S4 calipers, you either need M030 spindles from the Turbo S or M030 S2 / 968 or just get the adapters (the way i would go).

[CHICKS]

If your na brakes sucks then it's: 1. There's something wrong with them or 2. You're trying to out drive your na.

[Pete R]

The 928 came with those four piston Brembo's from 86.5 and up, until the GTS which had larger front brakes. So yeah, other than the half year in 86 it's gotta be an S4 (or GT). If you end up with a manual with an LSD let me know .

[9FF]

If your na brakes sucks then it's: 1. There's something wrong with them or 2. You're trying to out drive your na.

+1 With well sorted na brakes you can lock all the wheels up. Bigger brakes have no advantage unless you are increasing hp and need more stopping power. Also with the 928 brakes you will need at least 16" wheels, so if you have stock 15" on your na add the cost of wheels to your purchase.

[homer944]

The stock brakes are some of the best brakes I have ever had on a car. Even with using the cheapest metal master pads the car stops on a dime. Your brake lines are either swelling or you have air in the system. Metal masters are even good for a day at the track.

Do a full brake fluid flush and if done correctly you will notice a difference.

[skyhawk5421]

Interesting replys. I just put new pads all around and bled with dot4 with my power bleeder. The pedal feels like an old chevy truck compared to my turbo, is that normal?

I'll definitely look into the bias valve, the front rotors are much much hotter than the back even after normal driving

[Pete R]

how old are your hoses? Any chance they are just swelling under the pressure?

[zedsn]

could your power brake booster be faulty?

[flash968]

while i can agree that there is a limit to what the brakes can do, and sometimes you need more brake, it would never be on the street. the brakes on these cars, when set up correctly, do an excellent job.

that being said, the correct pad, a little more rear bias, and good hydraulic lines are key to maximizing the brakes. having everything else in good working order is key too.

the lines fail from the inside, and you can't see the problem. they are also only rated for 5 years, and after 10 are more than done. switching to stainless braided lines will help with pedal feel and provide better response. a good pad (like the porterfield R4-S) will go a long way toward better braking too. the bias valve (assuming the 944 has the same thing) will make a huge difference. when everything is right, the car will stop flatly, evenly, and very quickly.

[skyhawk5421]

Sounds like I need new hoses. I should really give the UPS guy a key to my garage

[Dantilla]

I race a 944 with stock NA brakes.

Being a relatively low-powered car, the best way to pass is to out-brake others in the corners.
Late in a sprint race, most other non-Porsche cars are starting to suffer from brake fade, while us 944 guys start really having fun pushing other drivers to overheating their brakes further.

If your stock brakes "suck", there is something wrong. Find the problem, and fix it before giving up on some of the best brakes around.

[ernie9944]

Originally Posted by skyhawk5421

Sounds like I need new hoses. I should really give the UPS guy a key to my garage

Suggest you go with these (if brakes lines are your problems) Pelican part # PEL-RP6944D S/S brakes lines quote at $67.50 Pelican Parts - Porsche Parts & BMW Parts - Automotive Parts and Accessories - Porsche & BMW or Paragon Products - Porsche Parts & Accessories - Koni, Pagid, K&N, Bilstein, Racers Edge, Weltmeister, Porsche suspension, porsche brakes, 911 parts, 944 parts, 968 parts, 914 parts, 930 parts, boxster parts, cayman parts, 968, cayenne part# POR 500 quote at $65.00
- #1 Pelican# 2 -Paragon

[skyhawk5421]

Dantilla- Awesome story, looks like I'm going to save money

ernie- I just ordered the set from pelican. Hopefully they'll feel better!

[Rasta Monsta]

Naw dood upgrade to 6 pot brembos

[Rasta Monsta]

Originally Posted by Rasta Monsta

Naw dood upgrade to 6 pot brembos

OK, just kidding. What pads did you install? New or at least turned rotors? Proper bedding in?

As stated, hundreds race on the stock caliper and rotor any weekend. I could dislodge your spleen in my car.

[skyhawk5421]

I really don't know what kind of pads they are, someone gave them to me at the last swap meet I attended because he was tired of carrying them around without being able to sell them.

I realize now I shouldn't have said suck. I just don't like how much pedal travel there is compared to my turbo, it's really kept me from pushing the brakes too hard. I'll give them a proper testing with the new lines though

[Rasta Monsta]

Pedal travel is adjustable! And, don't use crappy pads that somebody gave you!

[skyhawk5421]

They were like race car drivers man. Is it adjustable like the clutch pedal? I really love that rock hard feel