I have these gizmos in my UK MY00 car. Does anyone know the procedure i can use to increase my boost pressure safely without damaging my engine?

How do you tell when it is at the limit, ie. what do you have to look for in the airflow meters etc?

cheers

 

The AVC you can adjust the boost setpoints and duty cycles, but your car will probably have a 17 PSI fuel cut unless that has been altered. Up to that point it should fuel fine.

With the S-AFC you need a lot of car in setting it up. Most seem to lean out by up to one AFR point over 3500 RPM. The standard car gets richer and richer up the revs and many run 10% CO or more at standard boost, certainly most do when you turn the boost up.

Most of the Link cars seem to be tuned to between 7 and 9 % CO.

The richer fuelling reduces power a bit, but keeps temperatures cooler which is useful with a small inefficient turbo like the TD04L which comes in the MY99/00 UK.

If you are altering things, you need an accurate air fuel ratio display (preferably a DVM), proabably an exhaust gas temperature probe, and some way of measuring knock (various options). You also need to leave some reserve for the unexpected and different conditions/rubbish fuel etc.

Intake temperature monitoring might be useful to work out how well the intercooler copes with higher boost.

There is quite a lot to doing it all well and safely.

 

Get in touch with these guys.....

http://www.rcdevelopments.com/

I cannot say enough about how good these guys are, and they are alos experts with the APEXi gear!


Rich.