Pelican Parts Forums - CIS Residual pressure -Timing

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- - CIS Residual pressure -Timing (http://forums.pelicanparts.com/porsche-911-technical-forum/942288-cis-residual-pressure-timing.html)

hmm interesting .

So either the TTV is opening to fast (but then it would be leaning out to soon) or something else is not 100%.

I have a spare TTV somewhere.

Quote:

Originally Posted by boyt911sc (Post 9435802)

Ty,

I believe you but you have to demonstrate it now (?). When I was younger I could lift a 100 lbs. barbell. Today, I could barely lift a 40 lbs. bag of salt without straining my back. What matters most is what the device/s could achieve today not when it was brand new.

Tony

I owned that car for 10yrs. the WUR pressures were always the same, along with the .8bar drop.

I think the WUR on my 930 also has about a .8bar drop when on boost

i avoid picking up even 40lbs these days.

about 15-30 sec is what i had on my TTV also.

to the OP.
if it is opening at 15 seconds, and the idle goes up with no backfiring or popping leave it alone

I only see about 0.6 bar difference engine vac applied or not.

This is a 089.

The testing vac can be held for a very very long time so I assume the membrane is OK.

If I had a euro for every time I could not leave something alone...I would drive a 930 at current prices ;o)