r1c

iTrader: (9)

I'm thinking of buying a ppp ecu for my classic, do I have to have the y pipe or will it just make it better? Also will the ecu manage with a decat front pipe instead of a sport cat? I'd like to have a remap but really can't afford it, this way is half the cost an should be a noticeable change, what about the fuel pump? Would that need to be changed for the ppp?
I'm currently running
full decat
jasma backbox
green panel filter
uprated brakes
oh yeah it's a 99 uk turbo 2000

s70rjw

iTrader: (2)

PPP is a generic remap. With a decat you will get a CEL unless you remap.You will not get the best from your decat. Most tuners recommend a Walbro fuel pump if you're upping the boost, I'd say definately on an 11 yr old car. The standard WRX intercooler pipe has been known to collapse with the additional boost, hence they fit the stronger Prodrive one.
Cheap mods may cost more in the long run....

Andy1899

iTrader: (6)

Fully decatted system or only decat downpipe? i'm asking this because i'm about to install a 97/98 PPP ECU and have a decat downpipe. cannot dare to remove the second cat in the centre section here in germany... Will the PPP ECU cause any problems when using a decat downpipe and keeping the centre section cat?

his-n-her-scoobs

iTrader: (5)

r1c

Apparently the MY99 Prodrive ECU does not like full decat. PM TonyBurns, he has experience of the problems and will probably advise you to either fit a sport down cat or have the original ECU remapped.


Andy1899

The UK MY97 Prodrive ECU was designed to retain the standard down cat, the centre cat was replaced with an STI resonated centre section. It passes UK emissions no probs and you cannot tell it has centre decat as the units look identical. So much so that when mine arrived from the breakers I was convinced it was a cat centre pipe and had to put a hose pipe thru it to convince myself it was a decat.

The ECU is designed to work as part of a package which includes
The ECU
STI resonated centre section
Silicone Y pipe
Prodrive back box

Provides a reasonable increase in grunt and drivability (and burble) and is well worth it if all the components are cheap enough. Budget about £400 for a worthwile mod. Oh, and you probably already know that the MY97 cannot be remapped.

Good Luck

joey_turbo

iTrader: (26)

I had PPP on my MY00 and full decat and it was fine. But I capped the boost at 1.2bar to prevent overboost.
There was no sport cat option on the classic PPP and you won't get CEL from decatting a classic, I think s70rjw thinks you are referring to a newage PPP which doesn't like the full decat.

r1c

iTrader: (9)

Thanks for the info guys much appriciated still not 100% on things, is the ppp ecu the same as an rb5 ecu? I keep seeing prodrive ecus in eBay, Ill try to source one from here when I need it might be a safer bet!

Jolly Green Monster

iTrader: (4)

Rb5 ecu - the standard one is just a uk ecu.. the prodrive/WR version had a ppp ecu.

Sounds liek with those mods you would be far better off getting in mapped.

Simon

r1c

iTrader: (9)

In an ideal world I would just have it mapped, maybe I'll just have to hang on a bit longer and find some more money and get it mapped, was just thinking of a cheaper option, but as people keep saying mapping is the better option I think I better listen.
Is it a must to have a knock link or just safer? As all this is gonna add to the cost and am gonna need to know how much I'm looking at, I don't want to cut corners as it's my only car and been so good to me for years, I don't want it going **** up cos I'm tight!!! Obviously not the cost of the map but extras what I'll need a walbro I'll get, but afr meter, knock link anything that is essential to the mapping

Jolly Green Monster

iTrader: (4)

afr meter and knock monitor not necessary if mapped no.. as it will be set up correct and safe at time on mapping

Simon

Andy1899

iTrader: (6)

i'd like to thank you all for your answers, too. and yes, i know that a MY97/98 can't be remapped. that's why i bought a ppp ecu from a my97 (very, very lucky to find one!).

there's hopefully somebody who can tell me what to expect and/or what will happen when using the ecu with a decat downpipe and leaving the second cat in the centre section?

why do the ppp's always retain the downpipe and replace the centre section?

r1c

iTrader: (9)

Thanks Simon you've been more than helpful, when I have my money sorted I'll be in touch to book some time for a session.
Andy1899 I can't see why you would replace the downpipe cat with a decat but leave the centre cat in? Seems a bit pointless, the ppp leaves the front cat in to pass emmisions laws I think.

Jolly Green Monster

iTrader: (4)

you know you will need to get the keys coded on the 97/98 for that new ecu.. dealer can do it.

mot/emissions/cost mostlikely.

Simon

Jolly Green Monster

iTrader: (4)

no problem

Andy1899

iTrader: (6)

to pass german emission laws we have to keep the second cat. works with a decat downpipe when driving a few fast minutes just before the metering.

Andy1899

iTrader: (6)

know that. thanks mate!

his-n-her-scoobs

iTrader: (5)

Correct, unless you were fortunate enough to get the matching immobiliser box and key transponders with the Prodrive ECU. Then it is a straight swap with no recoding.

Andy1899

iTrader: (6)

Unfortunately only got the ecu. But believe me it was pretty hard to find one.

his-n-her-scoobs

iTrader: (5)

Tell me about it. Took me near a year from start to finish with both MY97 cars. One ECU with all the bits from Grade A, one from ebay. Decat pipes from Grade A. Back boxes from Scoobynet and Silicone Y pipes from Scoobynet, along with loads of help and info, including the numbers found on the ECU box.

Worth it tho

angusallan

iTrader: (4)

https://www.scoobynet.com/private-sa...-my-terzo.html

I have a PPP ecu for sale which will fit 97/98 if anyone is interested?