Neilo

Im hopeing that some of the mappers on here might have some input to this, and im sure that other people may be interested to know if this is the case.

But....

Are there any limitations to the sort of power that a tek3 can produce? i.e. is there a maximum that the ECU can handle? or sort out/correct with the new map? I have heard 330/340 with a WRX is a realistic limit on the standard ECU? After that switching to a GEMS or MOTEC ECU?

Any ideas people?

Cheers,
Neil.

Neilo

Hmm...ok....well who has the highest output from their tek3's then??

Im generally talking about UK WRXs here, or Late Classic models that are Tek3 able....

minor_threat

Also, what degree of power gains could be feasible on a MY00 without having to upgrade from the standard turbo/fuel pump/clutch/injectors?

Neilo

From what ive been told the limiting factor is the fuelling, which inthe case of a MY00 is 380cc i believe.

Apparently the maximum power can be calculated very roughly as 100cc of injectors = 20bhp.

So in your case 20 x 3.8 x 4 injectors = 304bhp

So a safe level for yours would be around the 280bhp mark perhaps? The later cars (late bugeyes and 03/04 cars have 440cc injectors) are less limited but i think if you want to see over 300bhp then you woul dhave to upgrade the injectors to at least 440cc if not 500cc.

Neilo

TD04 (if thats the turbo in yours) i think will run out of puff at most powers over 300bhp, i think the clutch is ok, just depends how you drive the car really....

Hope that lot helps,

Neil.

STi wanna Subaru

iTrader: (1)

I don't think the ECU is the limiting factor. You need to have all the supporting mods in place to get high power. If I remember correctly John Banks was using the JECS ECU in his car with a re-map and getting 350bhp +

john banks

Add 100 BHP (450 BHP) and I'm still using it with 2.5, iON turbo etc. Needs careful thought though above the high 300s, discuss with your mapper.

Neilo

I guess another large factor that needs to be considered is the intercooler too....front mount is most advisable!

Neilo

John who did you use??

Im looking to get mine mapped soon once ive had the exhaust made up by H&S, other than that i have an APS SR30 turbo but a standard intercooler on an 03 WRX although i am looking at upgrading to a frontmount in sue course but will probably just remap again when that has been purchased.

Any ideas if this is good for 300? I know the turbo is!! (gonna have to run it at low bar i think.....

Im just not sure who is best to go to as ive never done anything like this before.

Cheers,
Neil.

minor_threat

Wow thanks Neil, that's very informative! I'd settle for 280bhp! 300bhp would be fab but I think I'll wait another two years and buy an import before I go beyond the 300 mark.

If I kept the MY00 fairly standard (except new exhaust) would the Tek3 re-map be detectable by an insurance company (unless they drive the car or I told them about it)?

Neilo

im really not sure about that part to be honest....ive got to have a long hard think about what im going to do myself as i know that my current insureres are just going to laugh at me when i tell them about mine (as im only 24)

minor_threat

LOL, I know what you mean! I'm 28 but Scoobess (SN username!) is still 24. I'm hoping that when she turns 25 the insurance may get a tiny bit better, and in 2 years when I'm 30 (yikes!) we can get an STi import and go with L&V for insurance as they don't mind modifications. I'd like to get a Tek3 re-map with the MY00 though and not tell the insurance company about it, hence the question about whether it's easy to detect a re-map!

john banks

Neilo, I was the first outside of Ecutek to start mapping with using their tools back in May 2002, and did it for about 18 months, but in October 2002 I became a partner in General Practice and found I had rather less time and inclination to continue mapping in my evenings and weekends so I wound it up, but I continue as an enthusiast for my own car and T-uk's. Ecutek will be fine for your SR30.

You MUST declare all mods to your insurer. No questions asked, no exceptions. There are ways to detect a remap if you have access to the remapping tools. Same applies to warranties.

Up_North

Minor Threat,

<off topic slightly>

I would double check with L&V. True, they don't mind modifications to a UK pec car but I don't think they will insure a grey import.

Ian

minor_threat

Cheers Ian, that's worth checking out. I saw you this morning at the traffic lights near the train station!

John, after a re-map could I use Delta Dash and the live user tuning feature on a MY00 or will this only work on new-age cars?

Up_North

Yeah saw you too - but was past you before I realised!!!!

Ian

minor_threat

Heavy right foot or were your shades too dark? Only joking!

Up_North

It was sunny when I left home at t'other end of town!!!!

john banks

Live user tuning is new age cars only.

minor_threat

Ah well! Thanks John.

Bob Rawle

The factory ecu fitted to the MY99/00 is capable of far more than maybe first thought, hopefully I will demonstrate that over the next 3 months.

Ceratinly there is no problem getting to 400 ish, its also my belief based on some recent work I have done that its possible to use it to get alot further.

If I can demonstrate that then the cost of coping with high power mods will be reduced by some margin.

The MY01 onwards ecu's have always been capable of supporting good power when associated with the right mods.

The ecu is not the limit, the engine and associated peripherals dictate what can or cannot be done and then its down to the mapping and fuel strategy that is used.


bob

WRX_Rich

iTrader: (5)

Neilo

can I sugest you keep well away from ECU tek and Bob Rawle

I once had a nice my02 wih a few bolt on extras ... nice wheels and a big spoiler and I really felt happy with the car, then I took it too far The car was remapped and it turned into a pig

now those lovely summer runs with my girl firend turned in to a nightmare with constant screams of SLOOOOOOOOOWWWWW DOWWWWWNNNN, no longer could I let mr porsche boxter or Audi TT stick to my rear if I could see them in the mirror I wasn't trying hard enough

but the worst this is you gain a love for you licence, you keep it in your pocket keep checking every 10 minutes making sure its still there, sleeping with it upder your pillow but then you entre the car and it trys to rip it from you,

I might just go for a run round the block

tips are make sure you pick your mapper well, don't pay twice like some of us did, I can't rate Bob highly enough but I know there are other's, and get a knocklink as this probably saved my engine

Bob, if you had to spec a bugeye wrx for a daily driver with std internals and gear box what performance mods would you do,as Im sure these allot of us on here who would make good use of your advise as I bet you have sat in more modded bugeyes than most

Neilo

Hehe, Thanks Rich...

The platform that i wish to use for my effort is as follows (and i would appreciate any thoughts from anyone of if i am missing anything)

WRX UK 03. covered 18k miles.

Modifications Bought (but not fitted):
APS SR30 Ball Bearing Turbo
All samco hosing available for the 01+MY cars
GodSpeed Big brake kit (most important for stopping the damn thing)

Modifcations intended to be purchased:
Full 3" Hayward and Scott exhaust with Sportcat downpipe and resonated center
Uprated Fuel Pump
Front Mount intercooler (possibly Hyperflow)

I am looking to achieve around the 300bhp mark with the standard intercooler with the first mapping.....

Then when i have enough spare cash for the front mount maybe increase it a little further.

Do you have any thoughts on that Bob? Is that fairly sensible? I dont want to push it too far as it is a daily driver (kind of weekly at the moment)

I appreciate that perhaps some larger injectors may be on the cards as the power reaches 330+.....

Cheers for any input!!

Neil.

P.S the car in its current state (green panel filter and SS backbox) made 248bhp and 252bhp on 2 seperate RR days so i think the engine is a bit of a "goodie" to start with

Bob Rawle

The SR30 is a good move, I will say I was quite impressed with it (for a small turbo) when I mapped cars using it, you need to fit an adjustable fuel pressure reg as well as a pump. The std injectors should be fine with that set up, think about the induction as that makes a big difference.

bob

Neilo

Phew thanks for that Bob, nice to hear that id made a good choice. The other one i could have had was the SR-40 but i think that it spools up a little too late for everyday driving, the 30 seemed to be a nice compromise.

Thanks for the pointer on the fuler regulator, ill add it to my list.

One question for you though......what sort of pressure (in your experience) can the WRX cylinders/pistons take safely? is it worth getting a new head gasket to replace the standard one?

Cheers,
Neil.

john banks

I've now got my Tek 3 running speed density without the MAF sensor. A few transients from 2000-3000 RPM to sort out, but the whole conversion from an airflow sensor took place without reprogramming the ECU at all. Think of it as a MAF emulator

Upshot of this is that the ECU is now no longer limited at all on intake design and flow limits, so no real power ceiling that I can see

Bob Rawle

There will be a ceiling, using the std maf I have worked out the callibration to scale the load axis so that I hit 56 (max 56.5) at 1.7 bar (cut 1.72) and peak loading. Still using my "small" 500 bhp turbo. The nice thing about the MY99-00 ecu is that there seems to be no injector base setting so the fuel maps can be scaled to suite whatever you want, even my 740's are working well on closed loop now. Once sorted for the std maf I will redo it for something more robust.

I think what you have done there is superb John.

Bob

Bob Rawle

The std steel laminate head gasket will be more than adequate for your set up

bob