123tom123tom

I have a list of mods done to a car I have bought and I am taking it to be mapped, just wondering what kind of stats it may produce

-my95
-(think it is uk2000 engine as it has 8S ecu) but it is a import car???
-IHI VF43 turbo
-Walbro 255 pump
-big tmic
-full turbo back 3.5" Blitz nur spec exhaust
-HKS filter

and I that is it?? Is there anything else I can do to this car to get more out of it without going crazy in expense, am talking less than £2000. any idea's and thoughts are welcome

regards tom

ianbott

8S ecu is what I have on my 98 which I believe is unmappable, you sure it's a 95? I was told the 8S is only on the 98?

123tom123tom

yep its a 95 import but, looks like it has had a new engine put in at some point during its life in the uk? was imported in 2006, what model is yours it might help clarify what i have

classicgc8

iTrader: (4)

i also have a 8s on my 1998 uk wagon,not just a spare cover over a aftermarket ecu is it ??

123tom123tom

hi there, how would i know this or find this out???? all looks pretty standard as far as a ecu can look that is

ianbott

Does it run ok? Any noticeable lag? What boost is it running? If you know.

classicgc8

iTrader: (4)

standard 8s ecu will have 3 separate yellow blocks/connectors to it,
a correct ecu for instance applicable to a 1995 wil have four separate block connectors,does it have 3 or 4 blocks ??

123tom123tom

boost kicks in at about 2800 rpm, boost is running about 18psi, the other night it was hitting fuel cut and i think spiking to 19 psi, not had it on a long enough road yet to get it out of 3rd it was damaged rear end when i got it 4 week ago?

I bought the car for £700 from a insurance company, I have my own Bodyshop and was going to use the car for advertising, do a few shows a year etc. just need to know what i am running under the bonnet first

ianbott

A standard 8S as far as I'm aware will only run around 1 bar! Remembering that an 8S can't be modified as yet it can't possibly be a standard 8S ecu and liky an aftermarket ecu in an 8S shell.

classicgc8

iTrader: (4)

not only that a 8s ecu will fuel cut at one bar after 3 secs.

123tom123tom

how do i get rid of this fuel cut??? I had a supra and that had a non mappable ecu, I had to fit a Greddy Fuel Cut Defender to it so i could raise the boost... Is that he same principle on uk impreza's???

123tom123tom

is there anything that may give me a clue in what the ecu might or might not be i.e are the internals any different or is there something on the boards to look for etc?

classicgc8

iTrader: (4)

pictures of the board will help mate,post the on here for all to see.

classicgc8

iTrader: (4)

picture of engine too bud

123tom123tom

http://first-car.webs.com/apps/photo...bumid=12059631

the link above sends you to a few pics of the engine and ecu, but not the internals of the ecu, will have to do that tomorrow, can you not replace the ecu with one that is mappable.... or is that not advisable, like off a wrx or something else

classicgc8

iTrader: (4)

the one you have should be mappable or it better be running a vf43 mate,post up pics tommorow

123tom123tom

what do you mean????? it sounds bad how you put it with the vf43

Graham1998

that definately looks like a 1998 uk spec engine and it has the 3 connector ecu loom used with the 8s I think the original 94 ecu would have 4 connectors I could be wrong bu I am sure someone else can confirm. If it is an 8s it will not be mapable

classicgc8

iTrader: (4)

yep phase 1.5 engine,and 3 block loom,not original engine or loom then ??? only put the vf 43 as a different turbo when fitted needs to be mapped to avoid damage,original would have been a td04l turbo,vf43 is a nice turbo

123tom123tom

so can i put a z4 ecu straight on or does it not work like that??? is there a ecu that will go on that can be mapped??? can i use a fcd to get rid of fuel cut etc need help on a solution to this, especially now mapping on this ecu is out the question

ianbott

To be honest mate it's been explained to me that the "ONLY" option is aftermarket ECU, the 8S will be able to make certain compensations but I wouldn't of thought it would've able to compensate to 18psi, might be worth reverting back to a standard TD04 turbo till you can get yourself an aftermarket ecu and get it mapped.

123tom123tom

would a piggy back be ok for fueling, or do you recommend a full unit like the apexi? is there a way of bringing boost down on a car without changing the turbo??? ie boost controller

123tom123tom

still need help with options on what to do really with this car? I want to keep the nice big turbo, but make it usable, this is my first impreza so dont know much yet but when i get into it like i did with the supra i will fly so to speak??? just need some general advice really on what to do next and maybe a bit of shopping list help

classicgc8

iTrader: (4)

yep as above a aftermarket ecu apexi/simtek/syvecs and a remap is the way to go,difficulty is knowing whether the internals of the engine are standard though as the mapper who does it would be able to map the engine for more performance safely.
im not sure of the upper limit of a phase 1.5 uk spec internals,maybe a mapper will be able to comment if 1.4 bar is a safe value if mapped correctly or not?
you could contact jolly green monster on here https://www.scoobynet.com/member.php?u=5000 and ask his opinion and see what he thinks. ???

123tom123tom

contacted the jolly green giant, lets see if he has any info on this issue? fingers crossed p.s would a hks f-con do the trick

Jolly Green Monster

iTrader: (4)

I can't see pics on my phone for some reason.

But knowledgeable ones above pointout that an 8s is a uk 98 ecu and therefore someone has fitted a 98 engine and loom or the car is incorrectly registered as a 95.

Regardless the car needs checking and assessing whether it has an aftermarket ecu i the 8s ecu case or not and what is required from there. Be it a check over or a replacement ecu and remap.

Where abouts are you and is the car repaired and back on the road?

Simon

123tom123tom

Hi Simon

thanks for the response, the car will be back on the road in the next few weeks. The car is done but isn't taxed and I haven't received the logbook yet to do so. Is there anything I could look at to alert me to any differences in the ecu's internals which would make it modified different to a genuine 8s??? what ecu do you recommend as a alternative for the uk spec

regards tom

Jolly Green Monster

iTrader: (4)

Kind of doesnt matter, it needs mapping and setting up for the mods present.

Guess it is possible there is an after market ecu hiding in there

123tom123tom

can i fit a electronic boost controller to the car would this enable me to stop it fuel cutting by turning the boost down to a more suitable level? or can you not fit one to the uk spec

Jolly Green Monster

iTrader: (4)

Not with the mods listed no. It needs setting up properly or returning to standard.