Currently my car is NA, and it is running lean from simple bolt on modifications. I want to get an aftermarket engine management system so my car can be tuned for a bit more power. Most importantly though, I want to make sure and pick one that is good/usable for my future goals of going turbo. I don't plan on doing the tuning myself, I'll probably have to find a shop (Z Car Garage or someone) to do it for me. Which engine management systems would be most suitable for what I'm looking for?

 

that is the most vague request ive ever heard of so:

Haltech
Uprev
Cobb
Utech


pick one.

 

Get the tubo first. Everything else is an accessory.

 

my utec is for sale...cheap!!!!

https://my350z.com/forum/turbos-nitr...k-warning.html

 

If you have money haltech. But if not, i will go with uprev for sure.

 

Uh.. thanks, I am guessing Haltech is the best since it is a stand-alone ECU? I guess I really want something that is most useful for FI engine management in the future when I do go turbo, but in the mean time will tune out the current leanness of my NA motor with it's mere bolt-ons.

Can't go turbo yet, still waiting on my active duty orders... soon as Uncle Sam gives me my O-1e pay I can buy lots and lots of toyz.

 

how do you know you are going lean? have you logged some pulls? do you even have a wideband? What are you considering lean? A NA car should be in the low 13s at WOT near redline with stock timing.

simple mods will not lean out the car. the stock ecu can control a very wide range of AFRs

The UTEC with a good tuner would be sufficient

 

Did some pulls on my local shops dyno with a baseline dyno, and after some common bolt ons... bassani exhaust, motordyne 5/16 spacer, JWT intake the car lost hp/tq all throughout the entire powerband although it did gain peak power. They didn't hook up the wideband o2 sensor though so I'm not entirely sure, but the loss of low-mid range power makes me think this is what's happening. Either way I could benefit from a tune though I'm sure.

 

leaner makes more power, esp on a car that was tuned rich from the factory. a poor mixture of bolt-ons loses power.

either way, Up-rev reflash is the best for a NA car. UTEC is an ok compromise between NA and FI.

 

there is no "best" - the ideal choice for you, is whatever your intended tuner is most comfortable tuning with, coupled with what unit affords you the features you want.

 

Adam you said it perfect.

 

I dont think he has a poor mixture of bolt-ons, though.