How much vaccum, LCR?

[Gubien]

Finally got a VDO boost gauge connected, and it still makes boost damn slow, enough about that!

How much vacuum should a stock LCR make in idle?

 

[LEE69]

Sure it is 22 mines making 18 awaiting on a pump to see if it fixes mine.

 

[Gubien]

22!! Mine only makes 10!

 

[LEE69]

WOW!!

Have a look at this http://www.seatcupra.net/forums/showthread.php?t=227650 and this http://www.seatcupra.net/forums/showthread.php?t=228102
Also check all vacuum lines

 

[Gubien]

LOL... I feel the sarkasm!... But thats some difference!

 

[LEE69]

Wasn't sarcasm, it was shock/disbelief.

 

[Gubien]

But 18-20 psi seems much, when comparing my VDO gauge only is able to show 1,0 vacuum

 

[LEE69]

Engine braking i get 22, which i used to get on tick over too.

 

[tripdiesel]

Mine sits around 20-24 on vac, boosts to around 25

 

[Gubien]

tripdiesel: is that in idle or when letting off throttle?

 

[Gubien]

When I hopefully finds out why it makes so little vacuum I should get another gauge that shows more than -1.0!

 

[tripdiesel]

tripdiesel: is that in idle or when letting off throttle?

when letting off throttle it will go as low as 30 then sit at 25 on idle and after awhile at idle creep slightly lower to 20ish

 

[tripdiesel]

When I hopefully finds out why it makes so little vacuum I should get another gauge that shows more than -1.0!

Sounds like you have a leak somewhere, check all the obvious vac hoses and clamps

 

[Gubien]

Will try to check out the big vacuum hoses under the inlet manifold...
What gauge are you using?

 

[dg-1984]

when letting off throttle it will go as low as 30 then sit at 25 on idle and after awhile at idle creep slightly lower to 20ish

Yeah same value I am seeing from my halfords autogauge.

 

[Gubien]

It's nice to hear several people confirming the same numbers, then I have a goal to achieve!

 

[BoomhaueR]

Yeah same value I am seeing from my halfords autogauge.

Same here too.

 

[Gubien]

Ehm... sure its a "BAR" skale and not "Inches of HG" you guys have on the vacuum side?
Cause 0.7 bar = around 10.2 psi = 20.7 in.hg which is somewhat equal your numbers!

We have to compare bananas with bananas

 

[BoomhaueR]

Sorry yes, my vac idles around 20-25 inches of mercury (not PSI), and goes to 30 when letting off throttle. Im sure tripdiesel means the same.

 

[Gubien]

Then it all makes sense!! I myself should also have made it a bit clear that I was talking about "BAR"