古惑強

Need to investigate for the possibility of fitting a 20v turbo (or Nissan??) master brake cylinder.

Jason16VT

If I remember right, the master brake cylinder between the 16vt and 20vt are the same size.

Simon

Then is it possible if we reposition the push rod anchorage point, so as to advance the brake sensitivity?

coupeelvin

You're using calipers from 20vt?

PuntoPatrick

I think u modifly the push rod is same as u shift up the brake pedal higher, should help a bit for heel and toe, but the force still not smooth.
It happened on mind, I brought a 剎車真空倍力器，it just a metal cylinder with a vacuum gauge, install between engine vac hose to brake servo, the theory that should increase the volume of the brake cylinder. I haven't install it yet, duno it can help or not.

Simon

found in Fiat coupe forum
sizes of master cylinder as below:
20vt - 23,812mm diameter
20v - 23,812mm
16v all - 22,225

Simon

i.e. 16v turbo, area 387.751mm2
20v turbo, area 445.104mm2
it is a 14.7% increment
but i think, at least 30% increment will be useful in this situation.

coupeelvin

Yes according to workshop manual, the master cylinder diameter is different. 20vt is bigger than that of 16vt.
But it seems that the brake servo is the same.... Maybe finding a 20vt master cylinder can solve the problem?

Simon

巨龍已甦醒了. 上山真係好勁, 回復當年力量.

Simon

個迫力係好低, 不過, 日日揸住佢, 又唔覺係問題, 反而覺得佢大力左, 幾好收.
低唔低真係已經無比較.

romeochris

快車會唔會踏到地板o家?

Simon

又唔會喎. 只要踩晒個虛位, 之後就可以好線性, 印多D就迫力多D. 慣慣地.

romeochris

做到 heel toe?

coupeelvin

我記得你個brake不嬲都有虛位......

Simon

係. 但而家個虛位仲勁. 不過, 仍可以勉強做到heel-toe.

Simon

嘩~~~~...... 好凍呀. 無風機又無暖氣, 要開天窗行車.... 又凍又大風好似踩單車咁.

古惑強

Pls just add a variable resistor and direct connect the cabin fan system laa, otherwise she will be un-driveable during Spring time!

Simon

換左個水溫制, 用個梗頭好過卜頭. 帶左個卜頭返屋企, 點知拆埋水箱都唔夠位入, 焗住拆埋下水喉. 又搞到一地都係.

古惑強

welcome!

letsrock

歡迎Louis兄! Louis兄, 你居國內?