adjusting boost

[red79]

once i've fitted my new i/c can i manualy adjust my boost without having to buy a boost controller or do i need to take it somewhere to have it done.:thumb:

[Dyney]

All the intercooler will cool the "charge" air from the turbo better. Giving you a denser (more) air in the engine :)
To raise/adjust the boost you will still need a boost controller.

You can fit and set up a manual/mechanical boost controler yourself, you can even set up an Electronic controller yourself if you take your time :)
To get the best out of an Electronic one I would get it set up by someone who knows what they are doing, but DIY will run fine.

[red79]

i've got a manual boost controller on its way. how high can i push the boost safely without causing damage to my turbo or engine. i'm currently running 0.9bar:thumb:

[ScoobyDuck]

what year car?

safely - well, if its <96 then 1.1 is about MAX before it boost cuts.
later will go to just under 1.2ish

main thing is to get it checked, as you can never really tell .

if its a JDM, i'd probably not. UK i would :)

[Scott.T]

1.1 for sept 1994 - 1996
around 1 bar for earlier

there are other options though that are alot safer, and approx. for the price of a electronic boost controller ;)

[red79]

boost controller arrived today. i've fitted it. it was one that can be inside the car but have decided to but under the bonnet as it makes a squealing noise all the time. my scoobs a 95 import and i've got the boost up to 1.1bar really does make a difference to the performance. will it be safe enough to run at this pressure.:thumb:

[Scott.T]

marginal some will run it this some won't.
I have heard a scoob det at 1bar between 4,800 and 5,200 above the sound of the engine....if you can hear it without dectcans then it's v.bad.

[red79]

thanks for the advise scott but not really sure what you mean?

[ScoobyDuck]

what Scott is saying, is that some cars will be ok and some arent even at normal boost (or even slightly elivated).

Steve

[Dyney]

det = detonation/pinking/pre-ingnition :)
det for a sustained period = hole in piston/badly running car/new engine ;)

Next mod I would sugest a KnockLink followed by an AFR monitor (LambdaLink etc) to make sure it's running without a problem.

[red79]

i need a whatie,what,what from where and how much?

sorry i dont mean to be ignorant but you've baffled me with science.

[2-jaffacake-tone]

hows your detonation steve :waggle: :waggle:

[ScoobyDuck]

me? i only get det when it hits the limiter !! ;)

[Dyney]

These:
http://www.performancesubaru.co.uk/products.asp?cat=27
http://www.brdevelopments.com/link.html

Or instead of a Lambda Link you could use one of these:
http://www.flat4online.co.uk/catalog/product_info.php?pName=ac-invision-air-fuel-ratio-gauge-2-52mm-impreza-9200&cName=impreza-9200-gauges
http://www.flat4online.co.uk/catalog/product_info.php?pName=ac-s7-air-fuel-ratio-gauge-impreza-9200&cName=impreza-9200-gauges