THE BAT

Hi all,
Ive got a 96 import wrx with a KN filter,Full de-cat exaughst and a forge DV,Iam looking for ideas of what i could do next to gain a little more power,Any ideas please.

cheers

the bat

ps suspension and brakes are sorted as well.

mega_stream

Dawes manual boost controller, or if you wanna be flash an electronic jobbie

john banks

Knocklink before anything else.

Brun

How much is one of these knock links? I'm not sure i completely understand about the whole knock thing. Can anyone show me the light.

nom

Knocking; you don't want it
Knocking is caused by many different things, but, for example, increasing gas flow (the first stages of tuning - induction, etc.) will make the fuel mixture leaner. The ECU may compensate for this (add more fuel), it may not, but it certainly only will to a point. When the mixture gets weaker, the engine will run hotter, promoting knock. Knock is when the flame ignites before it's meant to, causing a massive pressure wave to hit the cylinder head. If it does this enough, the engine pops.
Upping the boost - the other favourite - also increases the likelyhood of det (higher pressure & also higher intake charge as the turbo is running harder).
What the knocklink does is tell you when this is happening; when the thing starts blinking (above a 'safe' level), it is time to remove foot from loud pedal. If it does this often, there's something funny going on & it's time to sort it out before the engine blows.
In short , a very handy bit of kit. Available from all good performance parts stockists

mega_stream

Have a look here for some info on engine tuning and knock.
http://www.scoobynet.co.uk/bbs/threa...D=62551&Page=1

See here for a good deal on a Knocklink device.

http://www.performanceexhausts.net/gauge.html

J

Moles Dad

I suppose I had better invest in this too...have been a bit 'head in sand' to some degree re det.

Will be next on the list after my (still waiting) HID upgrade