I have bought a second hand PPP ECU and a 3" Graham Goode exhaust. I've installed them both in my UK MY99 turbo wagon (old ECU was a AE800)

Now - I hear a lot about these "restrictors" that Prodrive apparently fit as part of the PPP package.

Should I get one installed? Do I need one? What does one do?

Thanks in advance.

 

I installed a PPP ECU and I didn't have to use restrictors. I dare say they are used to control overboost.

Drive a round for a bit (especially when it's cold) to see if you actually need to worry about it!

 

The restrictor is 1.1mm rather than .9 (i think)mm as the PPP ecu gives you more boost etc and a higher threshold (which is a good word considering this time of night ) of 19.5+ psi cutout.

Tony

 

So should I get one installed then?

 

where is the restrictor located ?

 

The restrictor is in the T pipe coming off the boost solenoid (lhs of the engine)

Tony

 

Burr, I'm not aware that the PPP kit changes the standard 1.2mm restrictor, used to control over-boost and spikes as Andy says. Do you have a boost gauge? I would recommend one. And a KnockLink for peace of mind

Richard.

Edited to add up-graded intercooler piping is recommended. The standard item will split sooner or later with higher boost.

[Edited by Hoppy - 2/2/2003 4:16:29 PM]

 

Knocklink - that's the paranoia machine, isn't it?

Thinking of a boost gauge tbh

 

Paranoid - maybe, but it's a clear visual indicator!

With a full decat, induction kit and PPP ECU, I noticed the Knocklink light up on a cold morning! I think the boost went up to 19psi!

I blame the quality of the fuel! As I had to fill up, but a tank full of Shell SUL (no Optimax at the time!) later, the problem could not be replicated!