daveturbo

bit of a daft question but somebody i gave a lift to the other day asked what it was and i aint got a clue lol

so 1994 wrx sti 260 ps?

any ideas ladies and gents , or do u know any good sites displaying all of the o-60 and quater mile times standard for the imprezas?

many thanks dave

taylormade89

4.6 to 60 or so it say ing the back of japanese performace

dan83590

Why not time it yourself and post it up..?

jef

iTrader: (13)

i have a 1994 sti import

i thought they were 240bhp?

is that incorrect?

taylormade89

250 i think

Aztec Performance Ltd

iTrader: (234)

At 16 years old, I wouldn't rely on test figures from when they were new

belliott69

iTrader: (3)

probably more like 5.5-6 seconds nowadays.

dan83590

No reason wht not Bob. Depends on how well the car has been looked after, you know that..

myblackwrx

iTrader: (1)

Well the times all depend on how YOU launch the car as manufacturers specs can be conservative but i would agree with belliot69.

jef they were rated at 250ps = 246.5 bhp

dan83590

Manufacturers scorch their cars off the line to get 0-60 figures too....

joz8968

iTrader: (13)

That's right. I remember evo saying that you would never launch your car like testers/journalists do (unless you have NO ounce of mech. sympth.).

They spend time finding the sweet spot of any given engine/transmission and will dial in optimum revs and whilst holding it there, they'll literally 'sidestep' the clutch, so ALL available torque at those revs gets dumped into the drivetrain at that instant. Using this method - and assuming they get the technique down pat for the car tested - then I reckon they can achieve anything up to 0.5s quicker to 60, than doing a 'normal', mechanically-minded, more sane launch.

The art is to cause the driven wheels to j-u-s-t spin - but as little as poss, obviously. If they don't spin, you're not dialling in enough revs, and it will be 'bogging down' to a lesser or greater degree, and will wasting valuable 1/100ths or 1/10ths.

FWD, RWD and 4WD all require different techniques. 4WD more so than the others.

myblackwrx

iTrader: (1)

But do they do it under normal conditions i.e road spec tarmac,full tank of petrol etc etc?

joz8968

iTrader: (13)

I can only speak of Evo mag:-

They always try and do it on dry tarmac (weather permitting); 2-up; and either a full tank or half (can't recall). I believe they do a run in each direction and average the 2 times, so as to factor out a gradient in the road.

Whether manufacturers use this method, or use some kind of different 'motor industry standard', don't know.

daveturbo

mine has the z4 ecu which is 256ps i think or close, with stailess and and induction kit it ran 262 ps, so from what i can see its preety heatlty, prob had a build last few years.

area 56 is it? said it was a good one.

either way im just after the magazine spec kinda thing, just so i know really as im gona get it roalling roaded now ive got other bits on it and gona time my 0-60 aswell.

joz8968

iTrader: (13)

Well dave, the contemporary official literature for the first 1992 240PS WRX saloon states 5.2s. But I reckon that's a bit optimistic - 5.5-5.7s I reckon is prob more like it.

Your 1994 STi has about 10bhp more/30kg extra weight, but also shorter gearing and overall final drive - so all that will pretty much cancel each other out, although the lower gearing probably makes it a tad more accelerative, overall.

So I reckon your car's good for <5.5s.... But all quoted figures are obtained using the manufacturers'/magazines' "show no mercy" method of figuring the 0-60!!! (as explained above).

ratboy

iTrader: (4)

Yep,in F1 before the traction control ban they said having 10% wheelspin offers the best possible traction off the line.

daveturbo

doesnt sound bad that, its just nice to know that these old babies can still kick it well.

ive got uprated fuel pump, fmic, and decat on top of the 262 run, so am hoping for 270 bhp+


the boost is running at 12 psi, which aint much i dont think myself, any easy harmless way of hiking it to 14 maybe?

mbc or sumat?

dave

joz8968

iTrader: (13)

Dave, your OEM MAP sensor is capable of allowing <1.2bar, so the mapper would set to 1.15bar (16.7psi) anyway.

With those mods you should normally see 270-300, with 280 being a common figure.

But if you're gonna fit a FMIC then change your 380cc injectors for 440s or 550s as it will be them that limit you to c.280. With the the bigger injectors and FMIC - and mapped on 99 RON - you should see 310-330 on your TD05H 16g turbo... maybe anything upto 340+! if you get lucky.

joz8968

iTrader: (13)

You do realise that you need spend on ESL Live, PFC, Simtek, etc. ECU management too, to be able to map, right?

daveturbo

wasnt planning on mapping, im mad i know, only coz i cant afford it.not yet anyway

fmic is on already, goes really well.

joz8968

iTrader: (13)

Hmmn, you really shouldn't hoon (i.e. use boost) - or actually drive at all! - with an unmapped FMIC on.

Good luck is all I can offer....

ratboy

iTrader: (4)

I got 310bhp on standard 380 injectors.
Also my old zerosport ecu (mappable) is up for sale(from the person i sold it to) for only £100.

bigsinky

just watch that engine go bang. do you have any idea whatsoever on how a subaru engine (or any engine for that matter) works. modifications will require a remap for air, fuel, boost, injector duty cycle etc etc. run with a standard map and face detonation and possible engine destruction.

It amazes me that people buy bits n pieces, stick them on their car and then wonder when the engine ***** itself. anyhoo i will await the gurny post about how subaru engines are crap, and does anyone have a spare ej20 block on the cheap. good luck you're gonna need it.

N_Scooby

iTrader: (2)

Is that the correct ecu for an STI? I thought the Z4 was for the WRX.

myblackwrx

iTrader: (1)

It is indeed SC (wagon ecu with STI chip),SB and 6K are STI ecus

daveturbo

yeh i know how engines work as im a mechanic, tuning subarus aint my hotspot but i know it needs mapping eventually, but i bought the car as it is now and have been saving for a remap.

bad thing is christmas has killed me and having 3 kids aint easy when trying keep this in tip top condition.

im debating selling as i just havent got the money to have it how i want. not for a while, and my run about has just gone **** up so the impreza is the only reliable car i have at the mo.

so dont worry i wont be posting up how **** boxer engines are, unfortunatly as most of u have said i need some good luck to see me through at the moment as im in serious ****.

so on a positive note.........

yes im on my **** and dont want this car go bang, so what is the cheapest way of getting this car mapped? and what do i need to do it on the subarus, my last sti was mapped already and ive been used to cossies in the past.

so i need a different ecu do i?

im sorry if i dont know this but thats exactly why im on here.

any help will be much appreciated

dave

dan83590

If you have no cash for a remap you could consider taking the car for a rolling road. At least then you will know if the changes you have made are causing the car to run lean or not.

daveturbo

yeh dont think its fueling correctly, and i havent done the mods, otherwise id have kept it standard till could afford.

just been looking at mapping and it says there r 2 options

ecutek ecu with map

or

live esl board with map

is this correct?

dave

joz8968

iTrader: (13)

Not EcuTek - that's for MY99/00 and New Ages i.e from Sep 98>on...

But ESL Live - MAF-based or non-MAF-based - is your cheapest option for sure. And perfectly good it is too.