Boost 'leak' & manual boost controllers

[bertelli_1]

I'm losing boost at higher RPM & have done various checks & come to the conclusion my wastegate spring is weak. Since I am very poor I can't afford an elec boost controller but have seen this at Demon Tweeks -
http://www.demon-tweeks.co.uk/products/ProductDeta... which appears to be the same as this one on Ebay (MUCH cheaper) -
http://cgi.ebay.co.uk/NEW-UNIVERSAL-TURBO-BOOST-CO...

But will it fix my problem?

[eliot]

As i said before chap wire it shut, set MS overbost protection to a sensible value and *gently* bring it up into boost and see if it holds pressure.

[stevieturbo]

If he's using MS....cant MS do boost control ?

All that would need purchased is a suitable solenoid.

[bertelli_1]

eliot said:

As i said before chap wire it shut, set MS overbost protection to a sensible value and *gently* bring it up into boost and see if it holds pressure.

But surely all that will do is take out spark / fuel as it overboosts. Unless MS can control a solenoid valve. I'll have a look through the megamanual when I have a spare couple of hours.

[eliot]

bertelli_1 said:

eliot said:

As i said before chap wire it shut, set MS overbost protection to a sensible value and *gently* bring it up into boost and see if it holds pressure.

But surely all that will do is take out spark / fuel as it overboosts. Unless MS can control a solenoid valve. I'll have a look through the megamanual when I have a spare couple of hours.

Only to proove if a)the turbo can maintain boost up to redline and b)there really isn't a boost leak.