AndyUkImpreza

Hi all, Im wanting to buy a prodrive ecu for my99 uk wagon, Ive seen a few for sale but they seem to have a variation of codes n part numbers, some also list sti etc etc,
Any advise please
Thanks Andy

TonyBurns

iTrader: (3)

They are an STI badged ECU but with a specific code on them (cant remember it off hand) but you really need the full pack to gain the maximum from this (scorpion/prodrive exhaust, intercooler piping etc) otherwise your better off getting your standard ecu remapped.

Tony

Rich D

iTrader: (12)

I've got one in mine and this is what the label should read >>>



The '0313' in black is the serial number and will vary between ECU's, but everyhing else should be the same.


To complement the ECU, you will also need a decat centre section, performance backbox and intercooler y-pipe, otherwise you won't see the full benefits.

Does make a nice improvement though!

AndyUkImpreza

Cheers for the replys

Its got a stainless back box and middle section fitted, only cat i can see is on the down pipe. Is it ok to keep that one or does it need to go ?

So if i get the ecu and y piece silicone pipe for under intercooler im sorted ?

Are the prodrive ecus 240bhp ?

Thanks again
Andy

Splitpin

You theoretically should keep the downpipe cat to run the PPP ECU as intended. Running a full decat with them tends to cause boost spiking - which can be fixed, but if you have the standard DP in there at the moment, you may as well leave it.

Should be, yes. PPP is, in practice, probably a little more than 240, but the main improvement is the torque curve. Makes a much more driveable car than the standard, and feels much more than an extra 25-30-odd bhp.

Rich D

iTrader: (12)

the Prodrive ECU is mapped for the catted downpipe, as Splitpin said, they tend to spike with a decat, so you're best leaving it as it is

yes, all you need is the ECU and the silicone intercooler y-pipe, a Samco (or similar) is fine, doesn't need to be a Prodrive one

the PPP 'allegedly' gives you 240bhp according to the Prodrive blurb, however it seems that figure is a little conservative and in reality they make more, mine for example was 258bhp on the rollers

Rich D

iTrader: (12)

quick question for Splitpin...

would a sports cat downpipe have the same issues as a decat downpipe with PPP?

this is something I have been considering

Splitpin

Pass, don't have the experience to offer an opinion, especially so seeing as not all sports cats are alike.

If you wanted to go that route, though, there's no reason why you shouldn't. If you haven't already got a boost gauge, fit a tidy one and drive round for a couple of weeks on the standard DP to get an idea what the response is supposed to be. Then fit your sports cat, and keep a close eye on the gauge for signs of spiking. If you get some, make sure your boost control pipework is clean. If it is, drill your restrictor out from 1.2 to 1.25mm. Try it again. Repeat until problem solved.

Also bear in mind that if you're going to get it, it'll be at its worst on a freezing cold day, so pay attention when it's chilly out.

Rich D

iTrader: (12)

my logic is that there will be more back pressure with a sports cat than a decat, so it shouldn't spike as much, but I don't know how that differs from a standard downpipe with a cat

I have Defi gauges, so know what the boost response is like and can monitor it if I did get a sports cat

as you say, the restrictor can be modded to suit if not

Rich D

iTrader: (12)

oh, and how much boost is too much with PPP in your opinion?

1.1bar is the target, but I suspect that will increase with a sports cat or decat

Splitpin

Your logic is pretty sound - as you say it shouldn't be as bad with a sports cat as with an open flue, but it's all a question of degree. You may well be okay without doing anything, but you're well taken care of in the monitoring department so however it shakes out you should be set.

Too much boost is any more than the target, especially if it's a transient. The ECU uses +- 0.02 bar as its definition of a boost error so by that definition anything over 1.12 at WOT is probably worthy of some corrective action. The biggest thing to watch for is peaks above the target, either one-off when you apply the throttle, or constant oscillation.

Rich D

iTrader: (12)

thanks for the advice

AndyUkImpreza

Thanks very much again for the sound advise
Cheeeers Andy

coupebrett

iTrader: (1)

sorry to jump in on this thread,
but i have a my98 uk turbo with a hks induction kit, full de-cat and a sti intercooler!
i also have ppp ecu sittin in my shed but im not sure whether to fit it or not?
and would i see any power gains if i did?
any advice?
thanks

TonyBurns

iTrader: (3)

With all those mods on there, its not worth fitting as it would cause more issues than anything.

Tony

coupebrett

iTrader: (1)

thanks tony

looks like im gonna have to pay out for a smtek then!

TonyBurns

iTrader: (3)

The ESl chip is due out shortly, may be an option but think there was an ecu for sale in the for sale section to fit your car

https://www.scoobynet.com/private-fo...w-a-l-l-c.html

Tony

coupebrett

iTrader: (1)

wot is the ESI chip then?

TonyBurns

iTrader: (3)

Should be esl think I missed hitting that caps lock lol
Google ESL chip and there was a thread about it not long ago in gen chat.

Tony