Quote:
Originally Posted by Sieg
Was the master cylinder bench bled according to Wilwoods instructions before installation?
What method was used to bleed the system on the car?
Spongy usually equals air trapped in a high spot or pocket in somewhere in the system. Sometimes it's a real challenge. Altering the direction of fluid flow and push vs pull may remove a stubborn air pocket.
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As Scott stated, spongy generally equals air. That said, an undersized MC relative to the caliper piston area can make the pedal feel "bouncy" for lack of a better word, which could be confused for "spongy". We can go back and forth over semantics, but that's probably not productive
If you know your piston diameters or areas, please share, otherwise we're forced to make assumptions. My best guess is that your Wilwood Dynalites have 1.75" pistons and therefore 4.80 square inches of effective piston area. As for the rear calipers, are the RSD kits using the 78-85 Caddy calipers or something else? Just based on your front calipers, the 7/8" bore MC is on the small side of things...if the rear calipers have 3.00 square inches or more area, then you're definitely undersized on your MC. That's not to say that it won't work, it just may not provide the feel that you desire.
Tobin
KORE3