Stock ECU capability, low boost?

[ChrisGB]

The stock exhaust will strangle the gains the PPE has the potential to make, regardless of ECU.

[lamcote]

To give an answer to the original question on this, my gut feeling is that it could be possible to run a supercharger with an intercooler setup at a max of c.4psi boost (measured in the intake manifold) using an entirely standard engine other than fitting a rising rate fuel pressure regulator (perhaps 2-3psi extra fuel pressure for each 1psi boost?) and using at least 98 octane fuel.

That's my guess, and I reckon that would make about 175-180bhp? But as Chris says it probably also needs a better exhaust system too.

Adding other bolt on engine mods (eg exhaust manifold etc) might well get it up to nearer 200bhp. Beyond that I reckon you need to modify the ECU.

[MrT]

Hello all and thanks for the advice and recommendations.

As I asked, does anybody have any leads or contacts regarding replacing the ECU chip please?

lamcote

I believe your suggestion re the fuel pressure regulator is exactly what Power Enterprise did on their Turbo kit with stock ECU. And they did not intercool at that either. I plan notionally so far to do exactly that, controlled by manifold pressure and add an uprated fuel pump and fuel rail return for the regulator. I will possibly also fit yellow 2zz injectors. No intercooling. Basically it is giving extra capacity to the components such that the ECU trims back fuelling to compensate and gains headroom in stock fuel tables to accommodate the added performance.

Ultimately, replacing the ECU chip sounds the most attractive. Allows access to remap but keep a simple, clean installation of everything. Any news on this would be greatly appreciated, thank you.

Re the thread, if anybody else has experience, most likely with the Performance Enterprise turbo kit in stock form, I'd love to hear from you please. I've seen a number of forum member have or had this kit in stock form on their car. Some upgraded to piggyback chips for more power.

[lamcote]

The problem with 2zz injectors is that the ECU may well struggle to cope with those when you are off boost. That is why I suggest just going with the rising rate fuel pressure.

[Essex2Visuvesi]

Have a look over on spyderchat.... there's quite a few threads on this topic. Sadly I think all of them gave up.
Even Dev (of MAF mod & co-pilot fame) didn't have any real success hacking the stock ecu.
I'm not saying remapping the stock ecu isn't possible, only to my knowledge there has been no successes that have been confirmed.

[shnazzle]

The place is called OrangeVirus and the work in question was for a Scion or Matrix.

The Spyderchat thread was this:
http://spyderchat.com/forums/showthread.php?t=45384

So some guy said his 2zz ecu came back with lift in earlier but power felt the same.
No confirmation of anything really and the thread died.

Still think you'd be much better off getting an emanage...

[jvanzyl]

Tyler if you want I can sell you my EMB setup with the open loop box of tricks... it's got the full harness and everything. I'm never going to get round to using it I reckon...

[MrT]

E2V, shnazzle
Thanks, I will have a look. Going to google the earth while on holiday next week.

Lamcote
Off boost? Begging your pardon sir, I don't expect a little m24 supercharger to every be off boost! It is pumping at a fixed ratio to the engine displacement rate... But I understand and that is a valid comment, thank you.

Jvanzyl
I'll have to look into that, not familiar with it. What is the full name please. Does sound interesting, however my goal was simple, cost effective and near stock.

 Free power almost... Can't have your cake and eat it, but you can try right  s:D s:D

[lamcote]

Presumably you will be using a bypass for part throttle driving? You only need boost during acceleration (or very high speed driving). It only takes about 25-30bhp to drive at a steady 60mph so no boost required for that.

[jvanzyl]

Emanage Blue. It's got the all the wiring harnesses etc so it should be plug and play really..

[1979scotte]

I think EMB has had its day.
For the money ECU master Det3 is unbeatable.

[shnazzle]

I wouldn't do emb for a turbo either to be honest. Ultimate at least.
Det3 looks good on paper