imports and ecu's

[Guest CRAIG D]

hi people,

iv just got a 95 wrx sti from japan and iv heard loads of storys sayin that i need a new ecu and remap in order to run on uk fuel ie opitmax.

is this true?? cos am actually scared in case i blow the engine

is its true, were the best place to go in scotland??

thanks for the time

[l5tuy]

That does seem to be true, people say you need to use higher octane or the engine COULD go pop. However two of my mates have old skool wrx's and they are running standars fuel with no drastic consequencies (excelent spelling, i know) loose a little bit of power thats all!!

[dipsy]

Optimax and octane booster or Apexi ecu remaped and sold by Andy forrest

[Guest CRAIG D]

cool, so much are we ruffly talkin about for a apexi ecu etc etc??

[dipsy]

Have a look on Andyforrestperformance .

[neilswrx]

agree with dipsy

had many agruments over this one

but from the experts like A Forrest optimax +boost highly recommened

[jcscoob]

About 850ish fitted and maped !

cheeper if you dont get a handset (but wots the point in that)

[neilswrx]

might be cheaper if there is a few of you to save on  his travel costs

yep you will want the handset

[dipsy]

Andy's workshop is at Seton port near Edinburgh

[Guest CRAIG D]

hmm very intersting just had a wee look at the website if andy. bloody hell he knows his stuff

so optimax and booster is a short term thing but the car will still run ok. but in the long term a new ecu etc etc is needed.

what sort of booster etc is best?

[Guest CRAIG D]

anyone intersted in a group buy ???

[neilswrx]

you could try fleabay(ebay)for an apexi ecu

sure there,s a few other recommendations for ecu,s out there

must go for a drink birthday tamorrow

ta

[dipsy]

Millers Octane booster

[Guest CRAIG D]

so i take it is in a bottle and uv got to add so much per litre rite??

[dipsy]

I bottle treats 50litres of Fuel well i stick it in 60 litre tank ie in fuel tank first then fill up with optimax

[Guest CRAIG D]

rite i better be stackin up on these boosters

where the best place to buy

[dipsy]

I bought a case of 10 from Awd in Perth

[Guest CRAIG D]

cool m8, my mission is to get me sum booster at the weekend.

take it just running optimax on its own is no use

[the squiggle]

The std ECU in a import 95 car is a Z4, lift the panel in the pax footwell and the sticker on the outside should state Z4. If you are in luck and it has not been removed then you can run it on Optimax alone

The Z4 contains a very similer fuel and ignition MAP to the UK Prodrive ECU of the same year so this means the import Z4 is the most suitable to run on UK fuel

It is generally other factors that make the engine go pop!

Oil getting in the inlet tract and causing Det

Inlet charge temp getting to high and causing Det

Failing MAF sensor causing the AFR to lean out

Taking the car over 100mph for a prolonged period of time, this causes the charge temp to rise pretty quickly. The slanty phase 1 intercooler in the 95 is not the most efficient in the world and over 100mph the air starts to miss the smallish scoop on the bonnet. The cars were limited to 112mph in japan.

Grant

[Guest CRAIG D]

perfect il have a wee check tomorrow and see if its the z4 ecu and if it is then il run it on opitmax only.

thanks

there is a oil temp and pressure gauge on the dash of the car so that should indicate a probs rite

[johnnyr6]

like grant says, check out the ecu, then if unsure before you go throwing lots of cash at it get it checked out ona rolling road. If your central, try dastek, very good guys there.

My import STI2 has a decat exhaust and ran perfectly on the rollers with optimax alone.

[Guest CRAIG D]

think thats what am gona do m8. take it to dastek and see what they cum up with.

thanks for ur help

[ANDYJDMSTI]

I would also recommend shelling out a £100 or so on a knocklink. Then you can see the knock/ det activity in the engine.

Again try fleabay