On a lighter note have you noticed how many ways warranty has been spelt on this thread?

 

OMG this post is confusing.
Escort T25 ( Small turbo ) I agree with Mr. Felstead on something they are not very tuneable but with a Group A fuel pump and a GGR Chip mine had 292bhp, and that was with the cat still on

John Banks have you seen STi 7's detting with a decat centre ?
I thought it was just a problem when you cahnged the front cat ?
Anyone else know ? I for one will take my centre pipe off if there's a problem.

Jas

 

co55ie,
I bow to your superior technical wisdom.
you're so so right.

what am I saying?


you're talking crap!

 

Thanks Pete, I'll stay standard on my STI7 surprise, surprise!

I am assuming the STI7 is the same as the WRX,Yes?

It would seem Subaru have much improved this weakness...which is very good news. I wonder if this sensor type could be used on the earlier cars...probably not if it is completely differant but worth asking the question.

 

Guys when I first saw the title of this thread I thought it was another subarus are x/y/z thread, but it is another of those threads that makes checking the BB daily worthwhile even with all the duff 'My subaru is quicker than your boeing 747' nonsense.

Good work fellas


Andy

 

Had a report this morning of a completely standard STi 7 detting on the rollers.

Damn, I should have started selling knocklinks, but since I don't make a penny out of them, I can wholeheartedly recommend they get purchased in big numbers, along with a boost gauge - even on a standard car? - I would.

 

John

This STI7 then, do you know what it was boosting to. My PPP'd car has peaked at 1.475 bar on the Defi's. When standard, boost peaked at 1.45 bar. It never really held high boost for long but it certainly is doing so now... :O

What with all this engine failure talk, I am seriously considering buying a knock link. I know that warranty is still there, but i'd rather prevent if at all possible, any pending failure than have to put up with it being off the road for X number of weeks.

Cheers

Simon

[Edited by YorkshireSimon - 12/21/2002 10:55:10 AM]

 

The RR did not take the boost unfortunately.

 

Got mine back and am now running in.
Will let you know. Done a few high gear short tests and car peaks to about 1.4.
Lower gear short little burst produces abot 1.1 to 1.2

 

John,

Do you know what fuel the car was running on? (and any idea on inlet temps?)

Matt

 

My experience backs JohnB's observations. The STI7s will det badly when the IC is heatsoaked. ECU doesn't seem to do anything about it - well, not enough to stop it anyway.

Edit: Water Injection is next. Have bought the 1s kit, now planning the install. Boy is the engine bay tight.

[Edited by RT - 12/21/2002 2:31:07 PM]

 

Following the thread with interest -

So the oil panel filters are not in line with Std Subaru design.

What about the exhaust mods. These don't exactly seem to be doing any damage to other components do they? (FYI I've a MY02 WRX and was thinking about the new Scoobysport mid section and back box)

OR is it only STi's go bang -LOL-

Nigeyboy

[Edited by Nigeyboy - 12/21/2002 3:15:09 PM]

 

Nigeyboy,

I don't find STI's going bang laughable.

Rob.

[Edited by Rob D - 12/21/2002 4:26:11 PM]

 

John,do you know whether it was a JDM or UK.A respected tuner told me he could actually hear the det on a UK STi he was test driving.

 

Deep,

What time of the year was the det occuring?

Cheers,

Rob.

 

Rob it was about March/April time I think.

 

Rob

I was not larffing at STi's going bang - just at my suggestion that the problem is only with STi's. I'm sure lots of WRX and Turbo also go Bang!

 

No. Only if they are modified by amateur tuners.

The very thing that attracted me to this car was the legendary relaibility - and my experience that that of almost evryone I know has proved this to be so.

Now evryone is talking about Scoobys as if they are made of chocolate, and go "bang" at the slightest provocation (if that's not a mixed metaphor!). This is of course utter bollox.They are very reliable motors in the main.

If you think you know better than STi how to tune a Scoobie, you should be in the tuning business - otherwise think again. Please spare me the "i fitted a full de-cat to my Sti 6 and now the motors gone "bang" wail.

As for those muppets driving around on SUL........their cars are just disasters waiting to happen.



Si

 

Standard UK STi 7 detting. Need to log it and listen to it to see what is going on. Fuel quality was uncertain because the car is from near Inverness.

[Edited by john banks - 12/21/2002 11:40:16 PM]

 

Thanks John,I have a suspicion(based on no science!) that the UK STi dets more easily than the JDM.
Si James,why should using SUL be a disaster waiting to happen? I take it you mean NUL

 

The UK STi7 was "de-tuned" to operate on NUL (as did Prodrive with the P1?) to suit the UK market. If det occurs using SUL and everything is apparently working correctly, (assuming inlet temps etc are within sensible limits) in my book it indicates something is badly wrong. Safety margin with these cars should be considerable.
Back in the "old days" det would often be the result of carbon build-up becoming incandescent. No amount of ignition retard would fully cure this. However, this should not be the case these days! An overheated plug or sharp edge of the combustion chamber could though?
JohnD

 

not sure if they did change the map on the P1,fairly sure the high and low octane maps are the same.I thought they had just put the broquets in the tank.

perhaps the type uk is the same if I am correct.

 

Type UK's and P1's are re-mapped for 97ron, 95ron is for emergencies only.

[Edited by Big Goon - 12/22/2002 3:20:44 PM]

 

P1 was not remapped, same maps as STi5/6, knock detection is more sensitive (it seems) but not much else is different.

 

And who said the STi UK was detuned vs the JDM STi? It's more emmissions friendly and has a more restrictive exhaust but that doesn't mean it's detuned. The Ecutek boys may be able to answer this though. Bob, I don't suppose you've had the opportunity to compare the STi JDM & UK maps yet?

Also, if the power figures are quoted for local fuel then that could account for the power difference alone, before you even take into account the more restrictive exhaust on the UK.....

Matt.

 

Matt,if power drops from 280 BHP to 265 BHP and an even larger % decrease in torque takes place in most peoples eyes this would be 'detuned'

 

WARNING!!!

For everyone who has replaced ANY part of the exhaust system. The Warranty is void!!!! No question, no arguments, its a see you in court scenario. My worthless bit of junk at the moment is sitting in bits at the dealer, and until I take Subaru to court or I pay for the work its going to stay there.
So bear in mind if you don't have the and I quote "O.E Muffler on it" your warranty is void! That also includes your PPP people who swap the exhaust.
I will be seeing them in court, but I wouldn't want anyone else to be put in this position. I would love to know if anyone else thinks that the removal of these parts of the exhaust is a real reason to say that a 6k mile less than 6 month old car would let go of a piston because if it is then I'll just have to stump up the money. I'm not technical but is the front cat not a lot more important in the scheme of things?

 

personally i'd agree with you that if the O.E. downpipe is still there then the Aftermarket exhaust will only alter sound output and look of your car..

(i aint a car techie mind..)

good luck with getting IM to fork out...

 

Adair, oh God, nightmare situation! Just for not having an OEM exhaust has cost you your warranty? I wish you all the luck with this, as it sounds crazy and you have to ask yourself where it will end - fit an air freshener and you void your warranty? (ok, extreme example, but this will be a precedent for a lot of people)

Genuinely hope you get it sorted under warranty.
Nick.

 

Thanks Guys

I know your sentiment though, do bigger alloy wheels put more pressure on your engine eh?
We'll see fingers crossed.