What's peak and what does it taper off to?

I was hitting about that while stock, then it would taper off to about 8 psi. Stage 1 I'll hit 17-20 then it tapers off to 8-12 usually.

Elevation may also play a role in what you are boosting. Where are you?

 

In NC, mine spikes to 15 and tapers to 11 i think. I will check.

 

I'm guess that you either have a boost leak or that ECU is stock. Find someone around town that has a stage 1 GTI and race him. You'll know for sure then.

 

In NC, mine spikes to 15 and tapers to 11 i think. I will check.

I live in NC also and if I remember right my 08 used to hit about 14-15 and settle out at around 11 also.

 

In NC, mine spikes to 15 and tapers to 11 i think. I will check.

Stock For A Mk5 .... What Does Ur Boost Gauge Read At Idle If Its Not At 20 On The Vac Side Or Close To It Then U Have A Boost Leak .

 

where should stock mk4 levels be at?

 

10psi

 

Does anyone know what the stock boost pressure should be? I've got a 06 and it is boosting around 13-15 psi. just trying to figure out it this is the stock pressure. Dealership said the car had a tune on it. Any help Thanks

try turning on the cruise control with the ignition switch on and holding the "set" button if your CEL starts to flash then you have apr tune on the ecu, usually, 1 flash per second is stock, then moves to 2 flashes is 91 octane then to 3 is 93 octane, release the button on the program you want and turn the key off for 10 seconds, then turn it back on and your CEL and EPC light should flash for a few seconds then you can crank the car and you are in that program. this is only for apr tho, could be a chance you lucked out.

 

Unless he has the security lockout.. That would suck.

 

Unless he has the security lockout.. That would suck.

true but you can hope the PO didn't lock the ecu, or call up APR or other chip dealers and see if they chipped the car.

 

Maybe mine isn't supposed to, but it seems to lock automatically while driving for a while.

 

maybe if your battery gets disconnected or runs low, but mine never locked itself

 

Mine will randomly do it just while I'm driving. It's really weird.

 

Checked the cruise control thing and no luck there. I think the Dub dealership reflashed the ecu when the car went to them for maintenance. I know when I test drove the car it boosted about 17 psi in second and now all I get is 14 maybe 15. Anyone know of any good tuners in NC? I'm in Jacksonville area.

 

Checked the cruise control thing and no luck there. I think the Dub dealership reflashed the ecu when the car went to them for maintenance. I know when I test drove the car it boosted about 17 psi in second and now all I get is 14 maybe 15. Anyone know of any good tuners in NC? I'm in Jacksonville area.

Talk To Slippednfelled ... Hes In NC Area

 

stage 1 on a mkv at 20psi?

 

stage 1 on a mkv at 20psi?

I would not thinks either, but i actually saw mine spike up to 20psi today on Unitronic stage1+. Stage1+ for uni is supposed to be 18 I think. I was actually starting to think there for a while that they flashed my GTI with the regular stage1 that is rated at 16 lbs of boost. I will find out for sure when I have access to a laptop and learn my way around vag-com a little better so I can see what the computer is actually demanding.

 

yeah mine hits 20 on apr stage 2

 

I would not thinks either, but i actually saw mine spike up to 20psi today on Unitronic stage1+. Stage1+ for uni is supposed to be 18 I think. I was actually starting to think there for a while that they flashed my GTI with the regular stage1 that is rated at 16 lbs of boost. I will find out for sure when I have access to a laptop and learn my way around vag-com a little better so I can see what the computer is actually demanding.

Stage 2 Uni on a TSI is 20 spike, 18 hold... fyi....

 

Stage 2 Uni on a TSI is 20 spike, 18 hold... fyi....

My UNI Stage 2 FSI Is Similar .... Spike 20-22 Hold 18-20

 

Stage 1 APR I'm peaking 21 and holding 17-18 PSI.

From what I'm reading sounds like the same peak with stage 2 APR. How does it makes the additional HP / TQ?