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      05-30-2016, 11:31 AM   #1
arctic_fox
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Turbosmart Plumb back DV - which spring?

Hi.

Added a set of Turbosmart Plumb back DVs to my CP-e chargepipe yesterday. But I have som issues with boost pressure dropping when reaching about 12.5 psi. It drops about 1.5 psi then increases again until it again drops the same amount. The problem is bigger when putting the car in 3rd gear or higher and then WOT. If I accelerate normally from 1st and 2nd gear until 6000rpm the pressure holds better. A bit strange I think..

I have checked all hoses and clamps and cannot find any leaks. Could it be the green spring being to soft? What springs are people out there using? I boost about 17 psi with a Cobb stage 2 sport OTS.


/Johannes
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      06-01-2016, 02:25 AM   #2
arctic_fox
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Noone running Turbosmart DVs who can tell if they had to replace to stiffer springs?
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      06-08-2016, 02:50 AM   #3
arctic_fox
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Anyone running with Turbosmart Plumb back DVs who can help me determine whether I need to swap to stiffer springs or if there is something else going on?
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      06-08-2016, 06:57 AM   #4
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I would try a stiffer spring if you have one.
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      06-13-2016, 08:54 AM   #5
BEAM3R
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I'm pretty sure that Turbosmart don't use different spring rates. Well at least mine don't. Instead you twist the top of it one way to 'stiffen' and the other to 'loosen'.
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      06-13-2016, 09:00 AM   #6
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Here I found an image on Google. See the 'harder' and 'softer' marks with the arrows. Try messing around with that. Just remember how many turns you do on one so you can do the same on the other.
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