BuRR

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.

Andy Tang

iTrader: (3)

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!

TonyBurns

iTrader: (3)

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

BuRR

So should I get one installed then?

rayman_2

where is the restrictor located ?

TonyBurns

iTrader: (3)

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

Tony

Hoppy

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]

BuRR

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

Thinking of a boost gauge tbh

Andy Tang

iTrader: (3)

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!