Microtech Removal Questions

[bozodos]

Ok so a mate suggested to me the other day that since I am running standard injectors and fuel reg, that until I can afford to get a remap/Nistune RB20 tune done, that I should take out my Microtech LT10S (the usual overfueling, shit fuel economy, horrible cold starts, fouling plugs, the fact that WOT = smokescreen deployed, and a EPA warning letter on top of that!) and replace with a standard RB25 ECU (think its all wired up still into the R32 loom).

Now assuming that wiring is all okay, am I likely to run into any major issues from running FMIC, KKR 480 turbo (boost set to actuator pressure of 8 psi) and turbo back exhaust? The motor is a Series 1 Stagea motor, would I be any better off with the Stagea ECU or just a normal R33 Series 1 do?

I do have an airflow meter sitting in the intake pipe albeit disconnected, and the O2 & VCT are disconnected.

[Guilt-Toy]

you wont able to run that turbo with the stock ecu.

[bozodos]

oh why not? another mate is able to run a HKS 2540 on a NEO and stock ecu with no dramas :S

[Beer Baron]

hard to say, but personally I would think the only way you'll know for sure is try it. half of us will say it wont work, and the other half will say it will at the end of the day there is a sure fire way of knowing.....

[PM-R33]

  bozodos said:

the fact that WOT = smokescreen deployed

Hahaha i know the feeling lol.

[James_03]

  Quote

I do have an airflow meter sitting in the intake pipe albeit disconnected, and the O2 & VCT are disconnected.

So do you intend on connecting them? AFM you won't get away with, the other 2 yes, but it's going to run like shit without VCT and o2.

If you can sort out the wiring, then provided you stick to 8psi then I can't see a reason why it wouldn't work.

[bozodos]

nah I will connect everything up, there are around 69000 R33's around here so I'm sure I'd be able to get a lend of one, its more fingers crossed that the loom hasn't been butchered, but I'm assuming that there's no major differences in fuel maps etc for Stagea vs R33?

Hopefully the ATTESSA *might* run with a stock ECU as well, but I'm not holding my breath.

Yeah it's mainly come about because I'm so sick and tired of the way the Microtech behaves, but then when you're travelling 400+km to get a decent tuner it's not a cheap exercise at all.

[bozodos]

spose ill do a bit of an update; finally got a stock computer, threw it in, hooked up AFM... and nothing! I'd forgotten that the Microtech had a relay set up in the boot for the fuel pump so stock computer wouldn't prime! I'll be getting a mate to rewire it for me in the near future, then we'll see what happens...

[STATUS]

  bozodos said:

Ok so a mate suggested to me the other day that since I am running standard injectors and fuel reg, that until I can afford to get a remap/Nistune RB20 tune done, that I should take out my Microtech LT10S (the usual overfueling, shit fuel economy, horrible cold starts, fouling plugs, the fact that WOT = smokescreen deployed, and a EPA warning letter on top of that!) and replace with a standard RB25 ECU (think its all wired up still into the R32 loom).

Now assuming that wiring is all okay, am I likely to run into any major issues from running FMIC, KKR 480 turbo (boost set to actuator pressure of 8 psi) and turbo back exhaust? The motor is a Series 1 Stagea motor, would I be any better off with the Stagea ECU or just a normal R33 Series 1 do?

I do have an airflow meter sitting in the intake pipe albeit disconnected, and the O2 & VCT are disconnected.

the stagea ecu is remappable with a type 4 nistune board andif tuned right passes all the epa tests.

[ITSR33]

best thing to do is throw that oldrotech in the bin

[bozodos]

nah gonna sell it to some sucker with a dirty 30 or a rotary owner

URAS: I thought that the type 4 board was only compatable with the NEO ECU? That's how I read the Nistune website anyway. Mine is a Series 1 Stagea motor with the old school RB25 and ignitor module.

[STATUS]

  bozodos said:

nah gonna sell it to some sucker with a dirty 30 or a rotary owner

URAS: I thought that the type 4 board was only compatable with the NEO ECU? That's how I read the Nistune website anyway. Mine is a Series 1 Stagea motor with the old school RB25 and ignitor module.

ah yep ser1 needs the z32 ecu trick, sorry should have read your post better sorry.

[N I B]

Nistune really is the best option for any supported Street based Nissan!

[bozodos]

will likely not bother with Z32 and just go RB20 remap and ditch the VCT since I already have a stock RB20 ECU lying around.

[STATUS]

  bozodos said:

will likely not bother with Z32 and just go RB20 remap and ditch the VCT since I already have a stock RB20 ECU lying around.

best running a jaycar switch then, ive got some dyno tests i did here with and without the vct and the hole in the mid range is about 15-19rwkw deep....

[bozodos]

really!? I was always under the impression that since it cut out at ~5000rpm anyway that it wasn't such a big difference! might have to reconsider that one lol

[PM-R33]

Yeah it does cut out at around 5000rpm, however you lose the power below 5000rpm...

Edited September 4, 2009 by PM-R33

[bozodos]

might bump this up again since I'm once again looking at this, I have no idea if the standard plug is for the R32 or R33 ECU, will this matter? when I plugged in the R33 ECU the fuel pump refused to prime, however there is a relay type thing for it in the wiring in the boot, would i need to circumvent that?