UK-POLOS.NET - THE VW Polo Forum

Posted: **Thu May 31, 2012 12:37 am**

Hi was just woundering if anyone knows what psi the 9n3 runs standard?
Thanks.

Posted: **Thu May 31, 2012 1:16 pm**

Stock boost peaks at 7psi(about 0.5 BAR).

Posted: **Thu May 31, 2012 5:45 pm**

correct!
logged mine while it was stock and it was spot on 0.5bar

Posted: **Thu May 31, 2012 11:43 pm**

Ok thanks I was just woundering as I'm runnin a forge 007p valve with a yellow spring as I was told this is what I'd need for remap, I also have a k&n 57i induction. It doesn't chatter very often it just releases the pressure in one go when comming off boost but yet a friends chatters all the time does anyone know why this is?
Is it because of the valve I'm runnin?

Posted: **Fri Jun 01, 2012 1:53 pm**

From Forge website!

Valve Spring color coding

Green - 5-15 PSI
Yellow - 15-23 PSI
Blue - 23-30 PSI
Red - 30 + PSI
The above figures are estimates only and should only be considered as a guideline
Please note - fitting a stronger spring into a valve will not increase boost pressure unless existing pressure is being lost. Failure to allow the valve to operate by installing a spring which is to strong may cause damage to the turbocharger.

So Green = Standard Boost !
Green with spacers = stage 1 depends on your software!
Yellow = Remap Stage like stage 2 apr revo etc! / [Extreme stage 1(?)]

Should be like that!

EDIT: Link dint work! Search Valve Spring Tuning Kit @ Forges Website!

Posted: **Fri Jun 01, 2012 2:03 pm**

and still it's not so correct...
i must use blue or red spring (i now have blue, red is slightly to heavy), with all the rest it's opening to soon

(stage 2)

Posted: **Fri Jun 01, 2012 2:17 pm**

Turbomier wrote:and still it's not so correct...
i must use blue or red spring (i now have blue, red is slightly to heavy), with all the rest it's opening to soon (stage 2)

Then use blue with some spacers to adjust right?

Allthough you don´r run Revo 2, you got some custom ecu done if I´m not mistaken with really high boost almost tops it?

Posted: **Fri Jun 01, 2012 10:13 pm**

Well I'm goin to get stage 2 done soon so I should be ok wiv the valve I've got or do I need to change it for a green spring

Posted: **Tue Jun 05, 2012 11:42 am**

Matt_27 wrote:Well I'm goin to get stage 2 done soon so I should be ok wiv the valve I've got or do I need to change it for a green spring

Forge Website wrote:Please note - fitting a stronger spring into a valve will not increase boost pressure unless existing pressure is being lost. Failure to allow the valve to operate by installing a spring which is to strong may cause damage to the turbocharger.

Posted: **Tue Jun 05, 2012 2:33 pm**

Mine seems to be around 9psi. Standard car except miltek exhaust, replacement filter and a recirc valve..

Posted: **Wed Jun 06, 2012 1:25 am**

Crippin wrote:Mine seems to be around 9psi. Standard car except miltek exhaust, replacement filter and a recirc valve..

The answer is there!

Posted: **Wed Jun 06, 2012 12:01 pm**

Ok thanks for your help

UK-POLOS.NET - THE VW Polo Forum

What psi do standard 9n3's boost

What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost

Re: What psi do standard 9n3's boost