Brake Pedal Feel Issue

[fatboycowen]

Bleeder is on the bottom left of the photo. Has the rubber cap on it.

In the car, it's located under the fluid reservoir, very close to the side of the car, which makes it difficult to get to.

[LVP]

Weird. I checked mine and there is a line coming from that port. there is a port under it that looks to have a plug, not a nipple. My car is a 1998 328i with the ASC (or whatever that excuse was for traction control).

Bleeder is on the bottom left of the photo. Has the rubber cap on it.

In the car, it's located under the fluid reservoir, very close to the side of the car, which makes it difficult to get to.

For those of you that have deleted, a question.

My car is 98% track car. The other 2% is driving to/from the track. For those who have deleted the booster and gone with a dual master setup, how hard is pedal effort? Lee's delete kit is said to be close in feeling to that setup. I just need to make sure I don't kill my leg (or myself) going to/from the happiest place I know

P.S. I am doing Lee's delete. The crap pedal that has plagued me for so long will soon be gone. If anyone has a BMW master part number that would fit the measurements, please post. Thanks

[flink]

For those who have deleted the booster and gone with a dual master setup, how hard is pedal effort?

It's acceptable, with the altered pedal ratio and master cyl diameter. Working back from the measured brake line pressure of 600-800 PSI, I figure I was applying very approximately 100lbs at the pedal for what felt like threshold braking effort.

So it does take a lot of force, but the quads and glutes are very strong muscles! I've never come anywhere near feeling that my leg was tired, and I'm a flabby old fart whose left leg gets tired in a 2-hour lemons stint from lifting it onto the clutch so often.

It takes time to get used to it! There's a lot of muscle memory in braking so for a day or so you'll find that you go to brake and nothing happens. You say oh dammit and press harder and then things happen, so you lost 0.5 - 0.75 seconds. This passes with time. Then you get into a car with boosted brakes and stand the damn thing on its nose every time you go for the brakes. Weirdly, driving on the street for several weeks with boosted brakes doesn't reset my braking brain at all.

[Evice]

What's the benefit of unboosted brakes? Precision?

[NeilM]

What's the benefit of unboosted brakes? Precision?

Read this thread.

So it does take a lot of force, but the quads and glutes are very strong muscles! I've never come anywhere near feeling that my leg was tired, and I'm a flabby old fart whose left leg gets tired in a 2-hour lemons stint from lifting it onto the clutch so often.

Years ago I did a Skip Barber 3-day race school at Mid Ohio (total surprise birthday present from my wife). At the time they used Formula Ford cars, which have unboosted brakes. As a street driver my first reaction was "Oh #*&@!!!, the brakes don't work and I'm about to die!" but you soon find out that, as you say, our legs are pretty strong.

Neil

[Massive Lee]

Old farts will remember that until the mid seventies, many cars had unassisted brakes. It even was a novelty when it became standard. Cars now came with ashtray, radial tires and... servo brakes. Even the mid 1970's VW Rabbit had no assist.

Basically, to reduce effort, simply reduce MC size. But as nothing is free, reduced efforty also comes with increased pedal travel. In the beginning the change from assisted to non-assisted will be unsettling. I suggest to look for that perefect seat position that will allow the best ergonomy for braking.

[Evice]

Read this thread.

Read the whole thread for something I can't even do on my car, IS. I'll keep using the "pump couple times and freak out the person behind you" method, will do well with my ( X ) sticker.

[Massive Lee]

Another device just off the machineshop. Will NOT work with e46 M3 (throttle-by-wire).

[NeilM]

Mmm, bare nekkid race part porn!

Neil

[E36forever]

Me likey

[jimmypet]

Thats pretty sexy Lee.

[Massive Lee]

Thats pretty sexy Lee.

Thanks for the compliment. The part was designed initially for the e30 chassis, but after checking e21/e36 and e46 pedals, it has become a "universal" fit part intended for racecars. It bolts on the floorpan and can be adjusted. Instead of producing it with stamped aluminum, I prefered CNC from billet for a more solid feel. Just made a small batch of 20 units. 16 are anodized clear, and 4 are anodized black. I personally prefer clear anodizing as black could be mistaken for... plastic.

Can't wait to present them on S14.net when it reopens.

[Massive Lee]

[will v]

That is a nice piece -- eliminating the old "i put my foot through the pedal and it snapped off at the top" jobber that I have done a few times

[Massive Lee]

That is a nice piece -- eliminating the old "i put my foot through the pedal and it snapped off at the top" jobber that I have done a few times

That was the purpose of this pedal. Especially that with heel and toe, they are subjected to a bit more lateral stress. I recognize that a new plastic pedal is cheaper, but this one shall last the life of the car and won't shorten your race. It also offers adjustments not available with the plastic pedal. BMW Motorsport used to offer something similar back in the days.

[GatorMech]

When will this be available and how much?

-Robert

[Massive Lee]

When will this be available and how much?

-Robert

They are now available. Got them this morning back from the anodizing shop.

http://www.facebook.com/media/set/?s...2267056&type=1

[GatorMech]

How much?

[Motomeister13]

Issue appeared at Mid O.

Looking back through old receipts, my car was at various shops for the same issue in 08 and 09 with the previous owner.

It did not become an issue for me, until the brake pads went below 50%.

Rich

[noodlexyz]

I am still awaiting for two small pieces to complete the whole system. One is the pedal height adjuster, the other is the tab that triggers the stop switch. But basically almost everything is here. With a pedal ratio of 6:1, requiring an ATE/Girling MC with around 19mm pistons (3/4").

What is the status on this kit?

-Ryan

[Massive Lee]

For people emailing me about what MC to use on stock M3 brakes (60mm front and 40mm rear) when using a booster delete kit, here's what I suggest

1987 Porsche Carrera had no brake booster and therefore used a smaller 19mm MC. Part # 911 355 011 12

http://www.ebay.com/itm/77-89-Porsch...sories&vxp=mtr

[LVP]

Hi,

Any feedback from people who have done the E36 delete yet? I bought the kit and a master, but have yet to install it. I'm getting mixed opinions on the install, but like several on this thread, it seems to solve an issue that plagues our brakes.

Cheers.

[Cody Overcash]

I'd like to hear reviews as well. I'm planning on purchasing and installing in July.

[Massive Lee]

I'd like to hear reviews as well. I'm planning on purchasing and installing in July.

Somebody sent me this review.
http://www.maxbimmer.com/forums/show...&postcount=429

[M369]

Another device just off the machineshop. Will NOT work with e46 M3 (throttle-by-wire).

Why doesn t work on m3 e46??