the squiggle

No problem Davie Pleasure to help

That may well be Davie but you did ask and i quote What sort of damage Jamie and what are the reasons? I have just fitted a Turbosmart supersonic and would like to know more about the possible damage that may/may not occur. If you did not want to know then why did you ask? You could have asked, i have have fitted a VTA dump valve to my car anyone have some advise to best look after the engine with one of these valves fitted? Best advise is to remove the valve, fit the std recirc and also fit a Soda Stream maker to the pax seat, this will give the noise to scare the grannies and provide a refreshing soda drink as well That fecking reply took 3 hours to write

Yes because the mapper can switch the fuel off on the over run

Righto The Impreza runs off the MAF sensor when in open loop fuelling, when you are giving it some stick. The Mass Air Flow will meter the amount af air being drawn into the engine and inject the corrosponding amount of fuel amount to achieve a rich enough Air to Fuel Ratio when on boost/load conditions. When you release the throttle, to change gear or slow, on a std recirc dump valve, the pressurised air will be dumped back into the inlet tract between the MAF and turbo inlet. When the throttle is closed on gear change on slow down the ecu will inject a corresponding amount of fuel to achieve a satisfactory AFR to compensate for the extra volume being drawn in. When you fit a Vent to Atmos dump valve, the pressurised air will be released to the atmosphere when the throttle is closed but the ECU will still dump extra fuel in trying to achieve a satisfactory AFR. The ECU thinks there is an extra volume of air being drawn in the engine and will inject the right amount of fuel to compensate, this metered volume of air has now been dumped into the atmosphere instead of the inlet tract. A std ECU has no way of knowing that the Air volume that has passed the MAF , which has been metered for and compensted for accordingly has been released outside the inlet tract instead of being drawn into the engine. This will in turn make the AFR be very RICH due to the air part of the AFR being expelled through a valve the ECU has no knowledge of The extra fuel that is being drawn into the engine, minus the volume of air the ECU was expecting will do 1 of 2 things. 1. It will explode when the rich mixture hits the piston crown, giving a flash of lift off DET. At full boost and at the point of ignition the temp of the exhaust gases can average 800 and hit 900 - 1000 degrees centigrade after a spirited drive, the crowns of the piston at the point of ignition can be as high as 700 - 800c. This tempreture is more than enough to ignite the fuel mixture before the spark can do the job and be a cause of lift off det and lift off dat can be damaging as DET under load 2. It will not expolde but as the mixture has ignited by the spark from the plugs and the flame front travels across the piston, by the time the exhaust valve has opened on the exhaust stoke the overrly rich mixture has not fully burnt by the inappropriate igntion level . Sometimes the rich fuel vapours not burnt from the time alloted in the combustion process will pop in the exhaust housing of the turbo when the gases exit the combustion chamber. Sometimes these pops will be sufficient to produce a a flame strong enough to travel the length of the exhaust syatem resulting a nice wee flame for everyone to go aaaaaawwwwww at but every time you do not get a flame the unburt fuel will be lingering somewhere in the exhaust tract, headers, hot side of turbo or even the chamber walls The atomised fuel droplets that cling to the wall in the combustion chamber will clean the oil off the walls of the piston bore every time the overly rich Air/Fuel mixture is being drawn into cylinders. The unburnt fuel mixture will get past the compression and oil control rings due to petrol mixture being a lot finer than oil and the excess mixture that has not been ignited will stick to the cylinder walls due to the condensation effect of the AFR that is being pumped into the engine every time the inlet valves open, mixture being around 10-30c and the walls of the cylinder being around 200 - 400c, the retaining temp from the previous combustion cycle which at 6000 rpm (avg gearchange rpm) would have happened millisecs beforehand . This fine petrol mixture will be transferred to the oil in the sump, getting past the oil control rings as atomised fuel is a lot finer than thick engine oil. The classics lubricated the piston bores and under the piston crown with the end of the crank scooping oil up and throwing the oil up the bores, apart from STI RA's which had under crown oil cooling jets to cool the underside of the piston. The oil that has been thrown up by the crank to lubricate the bore is prevented from entering the combustion chamber by the rings on the piston but atomised fuel can easily get past these rings assisted by the pressurised gases in the combustion chamber above helping it on its way and once past the rings the tiny droplets of fuel will soon find its way to the sump abley assisted by the laws of gravity. Over time these droplets of fuel will be sufficient to start to thin the oil down to a dangerous level and increase the chance of picking up a big end bearing My advice for the peeps running a Vent to Atmoshere is to, apart from dump them in the bin, is to increase the regularity of oil changes. Hope this helps All my own work

Code 22 is Knock Sensor Knock sensor has seen an abnormally high signal and triggered the CEL Normally this can be cleared with an ECU reset but if it immediatly throws a code 22 with a new ECU then i would reckon the Knock Sensor is guffed

160 miles is a bit of a kick in the teeth Only needs an oil cooler if oil temp exceeds 115c on a hard thrash or prolonged track session Hope it all comes good in the end

Pretty much convinced of it All the evidence says so esp as the Freelander wheels and decent tyres were untouched along with the Flymo. The Subaru alloys and bald tyres were the only things stolen

No they were STOLEN from my back yard STOLEN by a bloody lowlife I have my suspicions who stole them as all the evidence points towards them and with they Advans being quite rare i will spot them again. Imagine stealing off another forum member, bloody lowlife scrote

Thats what the Luxury Liner of Doom is for

I bought my Honda Civic VTi from there a good few years ago Coilpacks, Vtec valve and cam bearing failed within 100 miles Warrenty was only good for wiping my poo hole Avoid

Just the numbered plaque.

Acropolis, at a guess 200 made Version 2 STI with a numbered plate

Yup the old red shed with its rather daft exhaust system Sweet memories of that car

Damn, foiled by they pesky kids

431.6bhp 422.4lbs/ft With a prize like that on offer, well wortha guess-timate

Looks to me like there is no reserve on that auction.

I like that a lot Be interested to see how much it goes for in the end

Sure i have seen that car down Dumfries way Where near Dumfries are you? I am round that way every day in me yellow van scaring the hell oot the Doonhamers at every available oppertunity Nice clean Cassic

How about bringing the septic to Pete's place tonight A few of us are congregating there for our reguler feed Possibly get the visitor a hurl in the Chinese 399.7, if the owner is that way inclined or i will take him out in my car and do the pant wetting thing I will sit in the corner and play with my plastercine, if the embarressing Squirrel is the problem or even better get a takeaway so the visitor does not have to suffer the Squirrel's nonsense

Why not get them along to Petes place on Sat night. I am sure he does salad and other veggie food

Dave, i would guess at an MY99 PPP [] Too smart for Burger King and too dumb to be a hooker

My second favourite JDM STI RA V Limited SSSSSWWWWEEEEEEEEEEEEEEEETTTTTTTTTTTTTTTT Best car Subaru ever made

They would have a fecking field day with your car

Looks like a chip that contains a generic map for an early classic Personally i would go for the Scott Taylor chip called the Scoobyecu, as these have a proven track record in the early cars I feel slightly dubious when that Ebay ad claims increases of 50 bhp even with the std downpipe My opinion would be avoid this one and look for a genuine Scoobyecu, made by Scott Taylor, ScottT on Scabbynet

Erm i read it on the back of a Frosties packet Look at the tag at the bottom of the drivers seatbelt, this will give you an approx manufactured date. With it being on a P plate, i would say either Aug, Sept or Oct 96 but i would doubt Sept or Oct as the Version 3 production run started on Sept the 4th at the Star City facilty at the foot of Mount Fuji. If it is earlier than this it should be on a N plate but not to worry as DVLA as lax when it comes to early imports and sometimes approximate the time the car was manufactured P plate started on Aug 96 and the Version 3 was released to the Japanese public on the 12th of October and the last Version 2 was sold in Nagata on the 18th of Oct to a Hidetoshi Uregowa, a 32 year old fish trader ....but dont listen to me as i know nothing about the early cars