timmyajmy93wrx

iTrader: (27)

Hi all
I know this question has probably been asked a thousand times but...
Would anyone have an idea on my cars power with the following info.

Import 93 wrx
Z4 ecu
scooby chip to 15.5psi
K&N Ind. kit & cold air feed
new cpoil packs & Blitz Iridium plugs (i know no power gains)
HKS 3 inch d/pipe and vortex angled exit system
Uprated walbro fuel pump (i know no power gains from this..)

Any ideas as to the power i may be running?

And to get more would i be wise to get a dawes device and HKS FCD? or would these just be a waste of money or make a good improvement.

I did want Blitz boost controller but that means running 100 ron rated fuel....
So hence the question of d.device and hks fcd.

Cheers in advance all.

Tim

RRH

probs about 265-270 I would guess.

fit a knock-link before playing any further, just to be safe. although the dawes works well on most turbo cars the results on JDM cars seem to be less than on a UK car for some wierd reason???

timmyajmy93wrx

iTrader: (27)

cheers RRH, was hoping for more but as you say not sure.
I have a boost g and knock link sensor fitted and an afr on the way.

i was guessing right on these lines..

z4 ecu - 260
full decat + 25/30?
K&N + 5/8?
scoobychip????????? not a clue! anyone an idea what diffrence these make!?

so are these ridiculous figures i have here?

Cheers

vulnax999

iTrader: (7)

Import WRX was about 240 std.

Z4 ecu I think increased boost by 1 psi and smoothed the drive, so maybe 250 ? ( Z4 fitted when car went to 260 bhp IIRC, but not sure what else done to make this! ).
Air filter/induction kit ... if car needed more air ok, but unlikely so maybe 2-3 bhp?
D/p decat and big exhaust ( what about centre pipe/cat? thatgone or you left it in .. ? ) 10 - 15 for d/pipe, 2 - 3 for back box, and about 5 for centre if decat.

ScoobyECU at 15.5 PSI, from ECU info above unlikely to get much as Z4 gained you some of this, but as it now can use UK fuel safely may have lost a little power, but tuned ignition advance and fueling better so overall not a lot of gain. If Z4 allowed less boost then ScoobyECU would have given much more!

I would have been surprised if you got 280 on that set up ... try a Dawes device and a little more boost ( to say 16.5, ScoobyECU should have raised fuel cut a little too ? )

Roojai

very interetsed to know how 96wrx got 260ps if not just from Z4 ECU???

vulnax999

iTrader: (7)

Dunno, maybe cams, compression ratio, injectors, air intake system, turbo actuator, 3 port boost solenoid, cooling, intercooler, dump valve, headers, etc. When did they go from TD04 to TD05 ... ? or was that just wagons vs saloons, or UKs going in reverse!

The Z4 may well have just improved the ignition, fueling and upped the boost a bit, but I would expect more ... ok so I may be wrong!

timmyajmy93wrx

iTrader: (27)

thanks for the replies people.

I was told that the 93 import wrx had 240 ecu, but mine cme ova with a few miner mods i.e the Z4 ecu which i was told 260 standard which was fitted to 95' ish imports.
so i presumed this would be the base figure to work up from.
It is a full decat system i fitted
I am also ordering an AVO actuator which is able to hold boost far better (from jw racing).
I am also thinking (as previously mentioned) the jw manual boost kit and fcd - but are they worth it? will i see any gains?

Cherrs again!

NotoriousREV

My MY93 WRX has a ScoobyECU, running 15.5psi, HKS induction kit, Scoobysport exhaust and Bosch coils.

It made 272 at Well Lane and 288 at Prosport (follwing re-plumbing of my boost controller)

Before the ScoobyECU, running standard boost, but with exhaust and filter, it made 249 at Well Lane.

Tone Loc

iTrader: (1)

The 260 figure you quote is PS not bhp... so about 257bhp. Also that is on jap fuel (102 RON) so what fuel do you put in it. If Optimax and NF then maybe you could get about 245ish bhp as standard then go from there. With very similar mods but running 16.5psi i got just shy of 290bhp at well lane.

Not sure why you need an actuator??? The standard one will hold that level of boost fine.... waste of money if you ask me. Never had a problem with mine.

I've yet to find any differences really from the pre95 and 95 cars... id say the extra 15bhp or so is gained via the optimised map only.

Tony.

timmyajmy93wrx

iTrader: (27)

thanks for that, it gives me a better idea on what ive got!
nice one.

but still no answer on me getting a fcd and jw racing manual boost controller!
will i benefit from these!?

Im guessing i would but dont want to waste money on something that may go wrong or not make a difference to my setup!
Cheers

kramer2k4

Hi Everyone,

I have a 95 Wrx Wagon with a few mods:

K & N panel filter
Superchipped
Full De Cat
Dump Valve.

Always ran on Optimax and now Millers Octane Boost.

I was at Well Lane a few months ago and got 286 bhp on the rollers, i was quite pleased lol.

But my95 has developed Det problems , this is happening every now and again.

It holds back at 4500 revs then surges forward.

Delboy2

This surging backwards and forwards actually sounds like you have a coilpack breaking down under boost. What actual boost are you running? Do you have a Boost Gauge fitted?
The Superchips are not recommended by regulars on here as they are really a Fuel Cut lifter with a Bleed valve which is not Ideal on a scoob especially a Jap variant.
Prolly a good investment would be to purchase a Knocklink to monitor for DET.

Cheers

JDM_Wrx

hi,

i have a my94 wrx saloon, with z4 ecu, full turbo back revolution exhaust and sti panel filter. i had power run at clive atthowe in norwich yesterday and made 267 bhp. this was running just optimax. next step is to change my turbo to td05 and add scoobyecu. i have td04 but this only holds 12.5 psi constant boost and according to clive these mods should move bhp up another 40-45 bhp. does anyone else have better ideas. dawes device?

Roojai

I thought the Z4 ECU was mapped for the TD05.

I have a 94WRX wagon with full decat and I have tried the dawes but did not like it (esp with no knocklink). Scared me a bit. Pulled great until about 5000rpm but then did not seem to pull so well. Perhaps TD04 turbo could't keep up, but also worried that engine was retarding ignition due to knock. Or, perhaps compared to the power low down it just didn't FEEL so good higher up.

I have gone the TD05 route (still to put on car) and also have a Z4 to put on at the same time, as well as a VOS chip to play around with (tried the VOS with the TD04 but had problems). I let you know what it's like when I get my TD05 on.

sparkywrx94

I have a 1994 wrx with the following mods

revolution down pipe/magnex centre and back box
apexi avc-r boost controller
hks induction cold air feed and DIY cold air box
knock link, dawes afr gauge etc
hks fuel cut defender

running 1.1 bar I achieved 315 bhp and 265 lb torque at well lane last year

I am currently in the middle of some further mods which include oil catch tank, walbro fuel pump, fse regulator, FJO wideband lambda sensor and gauge, ported headers and FMIC.

at the moment my injectors are maxing out if I go over 1.1 bar, will have to think about new ecu/550 injectors to make best use of these new mods.

Mark

TonyBurns

iTrader: (3)

Just a quick reminder that there are differences between the early 4 door and 5 door WRX's, ie 4 doors up to and inc 94 had 240ps, 95/96 cars had 260ps, 5 doors had 220ps upto 97. Also a difference in turbochargers between 4 and 5 doors (which is quite amazing as the uk 5 doors had exactly the same TD05 as the 4 doors where as the JDM wrx's had a td05 on the 4 door and a td04 on the 5 door!) so making a point out of which model (saloon or wagon) will help

Tony

kramer2k4

Thanks for the Reply DelBoy2.

Well Lane said im running 1.5 psi over standard boost.

In the process of getting a Knocklink and also Boost Guage.

Is the car hesitating then surging forward due to Det or am i getting confused.

Cheers

Delboy2

If the surging/hesitation is around 4 - 5k mark on full boost its is likely to be a coilpack/s breaking down, if you remove the coilpacks to check it may be wise to replace the spark plugs at the same time or at least check them Does the surge/hesitation only happen under boost conditions?

Cheers

kramer2k4

Hi Delboy,

The car has just had full service about 3 mth ago and the plugs were changed then.

Yes m8 it only happens on full boost.

Cheers

Delboy2

Have you observed the boost gauge when the hesitation/surge happens? What does it peak at? There is a possibility it could be overboosting
Have a gut feeling it is coil pack related though

Cheers

neilswrx

94wrx import z4 ecu with full decat,itg panel filter ,never got to more than 9-10psi been told loadsa times 220-240bhp standard (reckoned mines about 230 wishfull thinking)and not 260 how would i get that far ?
ta