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PostPosted: Fri Sep 14, 2018 11:16 pm 
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The Silent Administrator
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Location: Ottawa, ON, Canada
I would pay heed to what gregd and myself have already stated, vacuum will put you back on the map and give you a much better application and feel when applying the brakes in all circumstances. Try the reservoir and move on from there.

I am curious how you managed to get more pressure from your brake system by shortening the rod? Was there a constant apply, or was this creating an unwanted consequence?


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PostPosted: Fri Sep 14, 2018 11:28 pm 
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Location: SoCal and Wisconsin
No constant apply, but the engagement was at the top of the pedal travel, above the clutch pedal.

Shortening the rod gave the pedal and and rod more leverage, physics type stuff that's over my head, so less foot force needed

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90 Mirage LIL EVO 940awhp
14 Audi R8 V10
07 LS460L, 01 LS430
13 Tundra TRD S/C, 96 T100
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PostPosted: Sat Sep 15, 2018 6:24 am 
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What is your pedal free play at now?

The amount of travel before it engages components in its path of travel ?

Essentially, the extended system is there to adjust the amount of movement before the pedal travel engages the rod and in turn the booster and through to the master piston apply.

Is this the rod at the booster assembly that contacts the master piston assembly?


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PostPosted: Sun Sep 16, 2018 7:41 pm 
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Location: SoCal and Wisconsin
Do you have the FSM page for testing brake pedal travel by chance? I have a few booster "nubs" laying around I can swap in and tweak length even more.

Now it feels like every other car on the road - normal. Not pedal on the floor low, but in the sweet spot middle.

With no other changes I can lock the front tires up. On decel it brakes even harder. Harder than ever before. I have that 1 1/16" master on the way. Will report again with a direct comparison between the 1" and 1 1/16".

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90 Mirage LIL EVO 940awhp
14 Audi R8 V10
07 LS460L, 01 LS430
13 Tundra TRD S/C, 96 T100
96 Land Cruiser GT35R


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PostPosted: Mon Sep 17, 2018 5:55 pm 
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PDF 1989 Mirage Turbo Chapter 5-9 http://4g61t.org/archive/manuals/89%20C ... arking.pdf


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