john banks

Great stuff John!

WREXY

I Have a question.

Bare with me please. I'm not the best when it comes to this tech stuff.

In my case, with the green ECU AE802, exhaust mid and backbox, APS induction and Blitz DSBC running 1.17bar peak, would an earlier ECU the 800 or 801 work better with my set up or would the green one which runs richer be better since I'm running the higher boost and don't forget the APS induction which leans the mix from what people say.

What I mean is, would an earlier ECU run too lean with my set up making it less safe for my engine? Is the later one better in my case?

Any ideas?

Cheers,

Wrexy.

john banks

You could try it? What sort of air fuel ratios do you get already? It seems only a small difference in fuelling and timing, and I suspect there would still be a lot of fuel about unless you have done the manifold too?

WREXY

Cheers John.

No, the manifold has not been done. don't know what the air fuel ratio is either, I've only got a knocklink fitted, however I plan to get to the one 4wd RR we have in Greece, which is a couple of hours away, to check the air fuel ratio and to see what I get power wise. I'll try and source an earlier ECU to try. If I can I'll take both ECUs to see what the difference is.

Since you mentioned manifold, I have a question again . Would a MY00 with PPP, exhaust manifold and downpipe run on the lean side? Would it be dangerous? I have a friend that has asked me and I thought it would be OK, but since you mentioned in your post above that "as long as I haven't done the manifold", it got me thinking, so I thought I'd ask?

Kind regards,

Wrexy.

T-uk

see Dave Brown's findings in the scottish forum.his car is an early MY99 so will probably have the black AE800.he is trying different turbos just now and checking everything on the select monitor and a local r/r.

it is the off boost performance that I am really happy with on my car,the boost as you have probably found with your own car can be sorted with a EBC/MBC.

john banks

My knowledge of manifolds is scanty, but-

Stephen Done might be better commenting, but I seem to remember several threads previously where APS filter AND manifold AND downpipes were fited were thought to be lean - this was on the standard ECU.

I asked Falkland Performance a while back about porting and flowing the existing manifold and they said it made no difference to performance in their experience, but obviously this is a different kettle of fish to a replacement manifold.

I was considered brave by some for fitting an induction kit and downpipe to a PPP a few months ago. So if there were changes to the manifold as well as increased boost you can understand my reservations about blindly recommending it, although it may be the way to go.

The way I see it is that your are (hopefully) increasing the volumetric efficiency of your engine with breathing mods. Hopefully the ECU will compensate fuelling using MAF sensor info - TO A POINT... it is finding out where that point is?



[Edited by john banks - 2/2/2002 3:19:34 PM]

T-uk

I think that after fitting the ECU,it needs about 20-30miles to settle in,unless you have a select monitor to reset them and run them for 5ish miles,to speed the process up.when I first put the AE800 in,the peaks/held started at 14psi.then after a few runs it went to 16.5 peak/15held.after about 15miles the peak was 15/16 and held 15.now after 30miles boost is very similar to the AE802 but held is far smoother.this does not worry me as the boost on the multiple ECU thread(1st page) is very similar,from a select monitor.

john banks also found that when he tried the Blitz back box nothing changed for 15min and then his car started hitting overboot cut.

john banks

.... which is very odd considering the ECU was not controlling boost. We wondered if it was advancing the timing more and this could have resulted in better boost?

T-uk

must be something like that as remember Andy (cc),put a straight pipe on as a back box and noted a large EGT drop,also remember when we had both b/b's side dy side the Blitz bends were far straighter possibly allowing quicker spool-up.

ski

I have just checked to see wich ECU I have got.
LHD MY00 green sticker Y6 in big letters, AE782.

is this unusual???

ski

WREXY

John,

Thanks again for the info! You are right. From memory, now that you mentioned it, Stelios had fitted a Falkland downpipe to his PPP MY00 and then he fitted the HKS manifold and he also said that he couldn't really notice any gains. He noticed a huge difference with just the downpipe but hardly anything when he added the manifold. Your last paragraph also makes sense.

Cheers T-uk,

I'll have a look at Dave Brown's findings. Is there a link to the Scottish forum. I haven't looked but someone will probably say it's on the front page of this bbs. If not, what is the link?

Ski,

It is unusual. What country did your scoob come from?

Kind regards,

Wrexy.

T-uk

it's on the front page ,at the bottom

john banks

Bottom of the front page

S**T in trying to embarrass you I made myself look like a muppet cross posting a**e

[Edited by john banks - 2/2/2002 5:41:43 PM]

WREXY

o:

WREXY

I'm going to have a look at my ECU again in the morning. I may not have looked at the number correctly. I saw the green sticker and immediately thought yeah AE 802 coz I did not think there would be a different code. Untill I read above. Mine could be green with the AE 782 number. Why do I think this? Because it is a LHD car and it came from the Netherlands.

Two people have posted that they had LHD cars, GTJ in the other ECU thread, fellow from the Netherlands, and SKI, on this thread and the other thread. One was a MY99 with a brown sticker, with the number AE 781 and Ski has a MY00, green sticker and an AE 782 number. Maybe all LHD cars have the variant number. Maybe they are the same ECUs but have a diifferent code to distinguish from LHD to RHD. So I'll look at mine again to see if this theory is true.

Cheers,

Wrexy.

[Edited by WREXY - 2/2/2002 11:39:18 PM]

john banks

Sounds like LHD = RHD - 20?

Robertio

iTrader: (1)

As expected my highly powerful EU import MY00 has the green AE802 sticker

babber

Guys,

Still very happy with my car now

Old MY00 ECU was a 22611, AE802, A18-000 D3l, 9X18 and was absolutely crap on the car. Changed for a RB5 ECU (thanks chins, where's my £20) Purchased Jan 2001.

Do you want to know which one I have now ? Will involve taking the car apart, AGAIN....

Cheers Phill

PS I'm just glad we tried this (me first I think) and fixed mine!!! Fair play to others for trying it themselves

WREXY

Ok Peeps,

Just had a look at mt ECU and it is in fact, not the AE802, but the green AE782. So it looks like the LHD cars have the -20 number, as John says from what the RHD cars have.

SKI did you experience any hesitation from your LHD MY00 and was your car slow? Coz I've never had hesitation and I was told that my scoob felt quicker, when it was dead stock, than the stock scoobs in OZ by my m8 mechanic from OZ, who came here to tweak mine up a bit.

Any other LHD cars checked theirs out?

Cheers,

Wrexy.

TonyBurns

iTrader: (3)

Ooooooops seem to have a boost problem now she now peaks at 16psi which is good but then plummets to 11 after 4.5k have a slight hissing sound so think that the manifold may not be sealed properly so going to check that again, good news is that i gained 2lbs of torque, bad news is ive dropped from 249bhp to 224 have to get this sorted soonest me thinks.

Tony

john banks

Tony you should be able to get peak/hold of about 16.5-17 on your setup. Hope you get the leak fixed.

TonyBurns

iTrader: (3)

Hiya John,
I can only assume that its a leak and what im not hearing is the turbo whistle up, but as it reaches 16psi at 4.5 then drops rapidly it seems the most likely of causes but not getting any sort of overboost which is good and she actually seems quicker and much smoother than before (well that 911 turbo was giving me a run for the money thou ) but im in the middle of thinking about swapping my MY00 in so i may resort her back to the cat d/p and part ex her for a Prodrive STi7 as its one hell of a car
Dunno yet thou but ill see if its a leak from the down pipe on sat when i get chance to take the car in to the garage.

Ta

Tony

john banks

Tony please take the time to at least try your Scooby at 17-18 PSI HELD with your downpipe before you chop it in and also try an Evo 7 please!

Assuming nothing is leaking or it is corrected, a Dawes would really be worth a try - it can be almost astonishingly rapid whereas PPP was interesting and with a downpipe was quite good.

WREXY

Cheers Ski,

So that's two LHD MY00s with the green AE 782 with no hesitation.

Anymore LHD cars want to check their ECUs and whether they have hesitation and less power than a MY99?

Regards,

Wrexy.

T-uk

Tony,

is it possible that an intercooler hose is slack after the d/p fitting?

john banks

I have a cut too from the plate after wiring my EBC yesterday!

Get an 800 ECU m8 before the country runs out of them!

Subzero

Andy, they all do that sir!

Don't dump the clutch either or you'll get a nasty bang from the txmission.

It takes a bit of practice.

John, remove the plate and mount the ECU under the dash for instant performance increase. The plate weighs almost as much as a passenger

F

T-uk

the hesitation is between 2000/3000rpm,as if the turbo is surging on gentle throttle.my held boost was not very well controlled with the green ECU and the car never seemed to pull as well as the earlier cars I have driven.I also had a flat spot at 4500rpm.I fitted the black AE800 and held boost control is better,I still do not have any hesitation(in since Friday)and the car is far more willing off boost and the flat spot has disappeared.

WREXY

Andy,

Although yours is a Dutch import, it is RHD. SKI's and mine, are left handers. This is why you have the AE802 ECU. But before I jump the gun is your's a RHD car?

Cheers,

Wrexy.

Andy Hobson

Wrexy,

Yep, mine's a RHD. Sorry - I didn't mean to confuse the UK / NL issue.

Perhaps the extra fuelling with the later ECUs may provide a useful safety barrier when running breathing mods and the Dawes.

Andy.