25/30 Neo Head.

[32Gts't]

Hello,

I'm currently building a 25/30 with a neo head. I have just bought a stagea

25 with coilpacks, injectors, manifolds etc.. But no loom.

I have a 33 wiring loom & ecu that I am going to use because I heard the

33 ecu is less restrictive than the 34..

Just wanted to know what wiring difficulties I will run into & what I will have

to do.

Cheers.

[KiwiRS4T]

Big mistake - the R34 ecu is better because it can be Nistuned and will control the VCT. Although in my case it deosn't matter as i have a Link G4 in the original Stagea case and loom.

Hello,

I'm currently building a 25/30 with a neo head. I have just bought a stagea

25 with coilpacks, injectors, manifolds etc.. But no loom.

I have a 33 wiring loom & ecu that I am going to use because I heard the

33 ecu is less restrictive than the 34..

Just wanted to know what wiring difficulties I will run into & what I will have

to do.

Cheers.

[Duncan]

You need the loom that matches the externals and sensors, and they all go in the head. So pick on that matches your head (c34 stagea?)

Having said that, looms can be modified if required.

You really need to change the ECU when you change to a 3l bottom end because the airflow will be very different, so buy an ECU that fits into your engine loom (although again, the loom can be modified for a different ECU, and many ECUs are total wire in anyway)

[32Gts't]

Thanks for the input guys, So I won't be able to run the

33 wiring & ecu at all?

I have the plug for the 34 VCT I was just going to cut

& wire that into the loom..

[KiwiRS4T]

You don't want to use a standard ecu so you need either an R34 ecu with a Nistune chip.... or you could probably fit a Link or Vipec into your R33 case and use the loom so long as you double check the pinouts but the R33 ecu itself is no good to you.

[32Gts't]

Alright then, thanks for that.

Would it be a good idea just to buy a z32 ECU so it

matches the AFM & get it nistuned or just go aftermarket

all together?

[Duncan]

Most ECUs can deal with different AFMs so that's not a big deal.

Basically any tuneable ECU will be fine including Nistune, Power FC (I'm using this on mine), Link etc etc. The thing to watch out for cost wise is weather they have a plug in for the head (and loom) you have because wire in can be expensive.

[Simon-S14]

get a neo looms and ecu and run that with a nistune and you'll have a FAR better result overall.

or use the 33 loom and get a G4

[32Gts't]

Thanks for the input guys, I'm thinking go with the Link G4.

It seems great bang for your buck in ECU's.

Simon will that plug straight into the loom?

[Simon-S14]

you can get plug and play link g4 ecus to suit 33 and 34 loom. so really use whatever loom you have available.. using a 33 loom on a neo engine will require some change of plugs tho