Aftermarket Pedal Boxes: Wilwood Tilton Street Use

[Cuzzo]

Hi all,

Looking at purchasing a wilwood pedal box. Dual cylinder brake, clutch. Overhung masters. Like so

Want to know:
Will the lack of booster will make street driving unbearable/unsafe? (obviously the master sizes need to be accurately selected.)
Should i opt for the longest pedal version to allow more pivot? (master size should also take care of this)
Is it legal / engineerable?
Anyone got one driving on the street in their toyotas?

Thanks,
Adam

[Cuzzo]

Hmmmm anyone have anything to add or I'll just get one and be the guinea pig.

[CELICASUPRA7M]

what would the benefit be fitting this to a street car? may not be legal also?

[George]

Cuzzo are you going to fit 1uz or something in small engine bay? In general, no booster is undriveable. However in the US it's quite popular to use another type of brake booster which can be installed remotely from the pedal. They use engine coolant somehow.

[Cuzzo]

From Russia with love....George you read my mind completely. Later down the Track
I would like to put a 1uz in her but not right now.

Main benefits would be
Clean engine bay look and no leaks on my new paint
Adjustability for the track days

[jondee86]

Dunno if this is any help... ...::: LES HUNTER RACING PRODUCTS :::...

Cheers... jondee86

[Cuzzo]

Definitely gives me some ideas!

[trdee]

IPRA forums etc may be of more help cuzzbro?

[convertableTA23]

as for remote mounted boosters some old (often import) nissan patrols had remote boosters that used vaccume.....

[allencr]

In general, no booster is undriveable.

In general????
Different, Sure. Undriveable, No way.
Do not compare it to braking with a non-functioning booster/servo & its large bore MC.

[George]

allencr Fiat124 originally came without booster. Unpleasant after newer versions with booster. And it was only ~900kilo/60hp
And no booster will mean longer pedal travel, which is also loss of comfort to my mind.

[supra2]

Hi Adam,
Unboosted brakes in a road car is not recomended and your constantly reminded at the lack of brakeing power which is annoying at best.
Older cars without boosters had big drum brakes which are self energizeing .
Ive got a Tilton box in the rally car and its been a constant struggle to find a rotor/caliper/pad/cylinder combo to bring the brakes up to a good feeling.
Your end up spending a lot of money just to bring the brakes up to where they are as standard.

[Billzilla]

I've got no booster on my Sprinter and the pedal is hard, but the car stops fine. I will eventually put a smaller master cylinder on one of the liens (got two master cylinders) to make the pedal feel a bit nicer.
The Fraser also has no booster and a balance bar, again it's fine.
I don't know about the legalities of it though sorry, but you will need an engineer to give you a blue mod plate plate that covers the changes you've made.

[TTV8RA23]

If master cylinders are sized correctly and pedal ratio is chosen to suit street car and then set up properly with balance bar etc they are better than boosted brakes for spirited driving ETC. Especially in something as light as a KE. Im looking into one for my car at the moment and have been talking to a Local race car builder (that seems to know his shit, built alot of quick, competitive cars) and he has been filling me in on all the details and im seriously considering going this way as i have very very little room.

Is there anyone on here that actually has personal experience driving an unboosted setup that has had the time and research gone into correctly sizing master cylinders to suit Pot size/numbers and disc diameters etc to give us an actual fully informed first hand reply not just what they have heard off other people and read on the net?? I have been told by many people who have heard second third or fourth hand that they are horrible and heard from one person that has first hand experience that they can be setup with better feel(firmer also obviously) and better braking control than a factory setup. I will ring another guy next week who has been building cars for years and years real good mate of my old mans that has alot of experience (i trust his opinion 100%, not like formerly mentioned guy who gets a bit carried away sometimes) and ill let you know what he says.

Legalities are not an issue here in NZ. Cant comment on legalities in OZ sorry.
Cheers
Simon

[Cuzzo]

Thanks for your time in the reply mate.

Any input is appreciated, especially first hand experience. Keep em coming.

Thanks billzilla.