What is the maximum that a 20V T boosts to???

Subject: What is the maximum that a 20V T boosts to??? Wed Jun 03 2009, 12:32

Does anyone know what the maximum PSI a 20V T can boost to without causing damage to the valves, etc?

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

DaveDubber wrote:: Does anyone know what the maximum PSI a 20V T can boost to without causing damage to the valves, etc?

about 18p.s.i mate Smile

Nice one pal, cheers.

- what's yours running?

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

DaveDubber wrote:: Nice one pal, cheers.

- what's yours running?

around 12 i think Razz

Mines around 14-15 but I don't dare wind it up any more until I stick VAG-COM on there and see what the injectors are up to.

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

DaveDubber wrote:: Mines around 14-15 but I don't dare wind it up any more until I stick VAG-COM on there and see what the injectors are up to.

i wouldnt crank it much more tbh

Mines peaking at 20psi and holding 15-18psi,

i hope your not just adjusting the actuator.

Number of posts : 230 Age : 39 Location : watford Registration date : 2008-03-06

Cupra20 wrote:: Mines peaking at 20psi and holding 15-18psi,

i hope your not just adjusting the actuator.

That sound about right for a good remapped car..

powerplant wrote:

Cupra20 wrote:: Mines peaking at 20psi and holding 15-18psi,

i hope your not just adjusting the actuator.

That sound about right for a good remapped car..

Sure does buddy, although you can run more if it's mapped right and you are running the right mods, E.g i've seen a 1.8t hit 2bar but had a bigger tubby and fueling mods to suit.

The actuator is adjusted slightly on the standard Turbo - not a good idea then?

Ah, see what you mean - just been reading about that - best get it sorted!

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

Cupra20 wrote:: i hope your not just adjusting the actuator.

you dont wanna be doing that Shocked

Number of posts : 230 Age : 39 Location : watford Registration date : 2008-03-06

Not read much about the actuators yet but whats the prob in adjusting the actuators?

Over adjustment of the wastegate actuator (to much pre-load) so much so the waste gate can no longer control the boost which leads to boost spikes, boost creep and the worst effect can be over speed of the turbine rotor which will cause premature failure of the turbo.

Aparently people have even drilled holes in the pipes to bleed off pressure (actually wasting precious boost pressure) or used bleed valves (crude but better than drilling holes) which are at least adjustable, but still not a good idea (which is what was on mine - a manual boost controller from http://turborevs.org.uk/vmchk/turbo-and-boost-kits/manual-boost-controller/manual-boost-controller-kit.html but is back to normal now).

Custom Re-map is the way!

DaveDubber wrote:: The actuator is adjusted slightly on the standard Turbo - not a good idea then?

Nah not a good idea really as you've already found out, and i see your doing the right thing and having a custom map,

Whos mapping it for yah?

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

Cupra20 wrote:

DaveDubber wrote:: The actuator is adjusted slightly on the standard Turbo - not a good idea then?

Nah not a good idea really as you've already found out, and i see your doing the right thing and having a custom map,

Whos mapping it for yah?

turbo goes pop. lol!

ive seen a place in cambridge for mapping now called tourquingbhp any reviews anyone?

Personally i'd go to someone who has a proven track record of good mapping.

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

Cupra20 wrote:: Personally i'd go to someone who has a proven track record of good mapping.

jabba is my first stop Smile

I'll vouch for them, may be tad expensive compared to some maps but are good plus it's custom.

Number of posts : 230 Age : 39 Location : watford Registration date : 2008-03-06

tourquingbhp do alot of bmw's,merc's and so on..

Done mates supercharged VR6 and came back spot on..

Track and Road in Rainham essex are the boys do propa race cars up to 1500bhp

Lupton_20vt wrote:

Cupra20 wrote:: Personally i'd go to someone who has a proven track record of good mapping.

jabba is my first stop Smile

I'll 2nd Jabba as my car has been ampped by them about 4 years ago and stil runs spot on today. Would say though the boost comes in a little agressive

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

Ian83 wrote:

Lupton_20vt wrote:

Cupra20 wrote:: Personally i'd go to someone who has a proven track record of good mapping.

jabba is my first stop Smile

I'll 2nd Jabba as my car has been ampped by them about 4 years ago and stil runs spot on today. Would say though the boost comes in a little agressive

well the figures of both the maps seem identical. so i may give this touquingbhp a go since they are close..

Number of posts : 230 Age : 39 Location : watford Registration date : 2008-03-06

http://www.tracknroad.com/

Check this link out they are really top blokes..

Number of posts : 6815 Age : 34 Registration date : 2009-02-01

powerplant wrote:: http://www.tracknroad.com/

Check this link out they are really top blokes..

that jaguar = affraid

I heard Stealth Racing were a good company, bit of a trek though.

£350 + VAT for a stock AGU, ie; standard injectors, turbo, etc.

Don't really know where to go, everyone's got their own idea of where is best - I just wanna go somewhere they do it properly on a rolling road rather than sticking a chip in it!