hi, im wanting a uk ecu nearly the same to that of the z4 one. im at the moment trading/swoping my z4 for that of a uk model. is there an uk ecu very simerler to this. i was always told that the z4 was the daddy to all the ecu's upto 96. but is there a uk one the same, it needs to be uk as i want it to run on 97ron fuel, and have no limitor to 112mph. eather this or a chip to change these two things. any info would be great, thanks all

 

I was under the impression that the Z4 is fine with Optimax, I know mine was even after it was fully de-catted.

Also you don't have to change the ecu to remove the speed restrictor. Its about 100 quid to have it done, do a search and you should find more about it.

 

thanks matty, ive had a look on the net. all i can find is chips. but dont really want that sort of thing. the ecu seems to run better on 97ron fuel iits just mainly the speed limitor im not happy with. but with this info you've gave me. i'll have another look about it..

 

Z4 uses the same base map as the Pre96 Prodrive ECU. It also has a smoother fuel and ignition map, so will run better then a UK one.
It will be safe to run on SUL and will give 12.7psi over 11.47psi of the UK map.

 

thanks for that, ive been told that could damage my engine unless i use s.u.l 97ron fuel + octain boost together. so all i need to sort out is the limitor of 117mph really. just need to find out where?

 

ebay item number 4615535326. Seller does mechanical and electronic versions. Dont know how good they are. Dont know if youll need the jap one or the uk one seeing that you are puting a jap ecu in a uk car. My guess would be that you need jap electronic one because the limiter is coded into the ecu. May be worth asking him the question.

 

I fitted a knocklink, didn't want my high miles (101k) engine going bang when I had my 95 WRX. Also used Millers octane booster + optimax. After fitting the knocklink, didn't bother with the OB as there wasn't a peep from the knocklink with just Optimax!!

And as I said, mine was fully decatted and producing more boost as a result (14-15psi).

So don't worry about the ecu, just get a de-restrictor

 

thanks guys, you've put my mind at rest. just need to find where i can have this speed restictor taken off.im not having any look in finding any where. well back to looking

 

It should be fine, the Z4 base map used by Prodrive runs upto 13.64psi, so 12.7psi should be fine.
They did recommended to use SUL only and not UL for Pre96 PPP cars though...

 

thanks scott.t, i always use super unleaded fuel anyways. all now needto sort out is the restrictor on the thing. some one did mention a place that can sort this out, around a ton thay said. ive looked on the net, no look though.do you have any idea of this your self. thanks again...

 

is the item i showed you on ebay not suitable then?

 

the ecu in one way is, but ive not long ago got this ecu. ive also been told to, really stay away from chips. as thay run slower than the standard ecu its self. im still watching your ecu, but finding out if its worth getting another chiped one. i still keep on getting told not to bother with chips, but go for an apexi instead. im doing my resurch first.

 

Not sure who told you that. Having personally sold over 130 'chip's to fellow scoobynetter's I doubt very much a correctley mapped chip makes them slower.

I'm sure I would of heard by now

If you want endless map changing ability then go for an apexi Power FC.
If you want upto 16psi and UK fuelling, and will be quite content with that then get a chip.

Beyond 16psi and the chip remapping costs end up more then an Apexi if you intend to do alot of changes.

If your worried about blowing it up, drive it like a granny.

 

well i had a chip in my ecu before, and it did play up. i my self would try the chip ive seen on scoobyecu, all i would be happy with is the limitor removed & upto 14psi. with other mods. should be good. but i was told that most chips run an a slower speed than that of the ecu, the mhz, were different. somtimes cousing over fueling & twitching. i did find this tru with the last chip i had. the scooby ones say something about being two 8 bit chips to make one 16 bit. how much would one of these chips cost. with upto 14psi, & no limitor. + would i retain my standard map. it is a z4 after all.

 

the item i showed you was a speed limiter remover - not a performance chip! it would remove the 112mph limiter on your z4. By the way its not me selling um either!

ebay item number 4615535326

 

its the limitor remover im after. im speeking to two persons. one your self, & scott.t, im sure that scott sells them. please forgive if im wrong. but im mainly after a limitor remover. if i carnt get one, the ecu your selling on ebay, i'll put the bid in for that. im still making sure that these chips/bourds dont rec, the ecu's them selves. so far, its looking that these scoobyecu bourds are what i need. but i need it setting for my car.

 

The single chip used 'Fujitsu MBM-27C1028-15' or 'Fujitsu MBM-27C1028-20' are the chip originally design for the job (and is now obsolete). These have 150nS & 200nS access times.

As they were originally designed for the job and fitted by STi and Prodrive, I doubt they are too slow. I think the STi one is 200nS

Some of the adaptors may be though as they can be fitted with devices with access times from 45nS to 250nS (although the old one I have here runs at 100nS).

 

Here you go, found thison one of my old posts, ref Prodrive PPP Map Vs Z4 map (which uses the 27C1028 chip).

A PPP UK map is just a WRX95 MAP with the following changes :

7 out of 256 values changed on the fuel map (PPP a tiny bit leaner, but very minor difference).
4 out of 256 values changed on the Ignition Correction map.
14 out of 64 values changed on Target Boost map (PPP runs slightly more boost, 13.64psi as opposed to 12.7psi).
8 out of 64 values changed on Boost control map (PPP adjusted for above reason)
Speed limiter on PPP map increased to 170mph from 112mph.

 

can you still get hold of these chips. if i can get a chip simerler or the same as you mentioned. i'll will keep this z4, another thing. some one said that my injectors would need a sertain map as thay are higher cc. is this tru, how much do you do these chips for,besides ive just put a bid on an ecu with a scooby chip in. are all these chips the same ect. or would i need to get hold of a certain one. but if i get this other ecu of e-bay. can you or do you now anyone who can map/change the settings. thanks again for the info

 

Yes I can get hold of blank chips (got some on the way at the moment)
No they are not all the same, it depends who mapped it.
Your injectors should be 380cc, which is the same as all UK, WRX and STi <1996.

The chip could be loader with a Z4 base map with the limiter set to 170mph, but TBH it's a bit of a waste of a chip. YOu'd be better of (an cheaper) getting a mechanical speed de-limiter

 

Just read your other post where you say the car is fitted with 440cc phase two injectors...

What are you playing at........ fitting a standard ECU setup for 380's. Just ditch it a fit an Apexi Power FC.

A chip can be reworked to run with the 440cc's but it's a damn site easier to do it with a few clicks on the Apexi.

Standard ECU's run quite rich anyway at WOT, down into the high 9's in some cases.
So with an increase to 440'cc it will be running even richer.

 

before i started to do anything with this car, i asked persons on these sites for advise. the injectors came up, the fuel pump, lightend flywheel, light weight pullies, airfilter, full decat & the z4. well ive done all that, and now i get told the its wrong. but will this apexi run better + will it give that extra couple of miles on a tank. whats the next best move, apexi or scoobyecu chip?. if you say the apexi, i'll try to get out of the bid on e-bay...

 

If you don't want to play with it anymore then get a ScoobyECU chip fitted at ScoobyClinic. They have all the gear to ensure that it's running right and the AFR is correct for the injectors you have. They should also know what values to change in the map to rescale the injectors.

Cost about £700

If you want to add more mods and maybe adjust the map yourself, get an Apexi Power FC and get AndyF, Zen Performance of Jolly Green Monstrer (Simon) to map it. The initial cost is going to be about the same as going to ScoobyClinic. But you end up with a much nicer package.

Don't beleive everything your told on here though.
It sounds like you've been led up the path.
There's pelnty of people on here dishing out good advise but there's also plenty that read it in a book/magazine then think they have the answers. Where in fact the book or magazine is full of ............

The Impreza Book and Japanese Performance Mag, to name just 2 have been known to have mis-leading information.

 

hi again, so far matty. you have helped me get a proper grip on what i do really need to do. and as you said. the apexi is the best path to take. and again your right about the advise ive been give over the couse of having this car. pound for pound the apexi will cost me £450 for the apexi + the comander. maping by andy f is £220. at least as you said f i want more regards mods. i can get the apexi mapped again easy anought.
ive got and in a way scanked a guy, as i put a bid in for another chiped ecu. he was under standing though. if im in dought again, i;'ll try to ask for you on this site.