Actually, it doesn't matter if you have the base Z or Sport or Nismo, EcuTek includes LC, FFS and TC for all of them.

The reason I chose EcuTek is because I plan on running E85 eventually, and according to what I've read in the past, the tables for timing, VVEL and fuel are higher resolution.

Oh really? When I talked to the guys at ECUTek at SEMA they told me they didn't have it for the base.

I haven't had a chance to try it since mine is a Nismo.

It's what Seb at SpecialtyZ told me.

When you think about it, the only real difference between the base and the Sport/Nismo is the rev syncro. I don't think that particular feature has any bearing on TC or FFS. Since I'm still running the "off the shelf" tune, all I have at the moment is LC when I have VDC turned off. Seb says that once we get to tweaking maps 2 and 3, map 3 will have TC.

As for FFS, I'm not too concerned about it if I have that one or not. I used to FFS years ago in my old '96 200SX SE-R, '91 Ford Ranger XLT and '83 RX7, and I didn't need to have any software to help me with it. Back then, we called it speed shifting or power shifting.

The main difference between the two as far as the general idea of engine management is that the Uprev uses MAF sensors which is a very simple, non enough complex in my opinion way of fuel/load management. The Ecutek uses MAP sensor (Speed Density) which is better/more safe, especially in case of FI cars.

One thing definitely against Uprev is the support - they do not answer emails, I'm waiting over a week and no reply. I was about to purchase the ARC feature but no response from them.

Also I've heard the Uprev plan to add the Flex Fuel feature in the future.

They were all at SEMA last week, try emailing again. They are working on flex fuel support

I can confirm they were at SEMA as well. I don't think they had a booth, but were there to attend.

ECUTek does offer hybrid where it can use MAF, and SD depending on the parameters you setup.

I think the only reason why someone would want to do this, is because MAF does idle much better with cars and aggressive cams. But I can't think of any other reason to that.

https://s17.postimg.org/7tsz2uefv/synch.png


If you look, in the software you can see where it says "Synchrorev only"

I have a base model with ecutek can confirm that the ffs and lc are active on my car. In the software it says that it's not supported but my tuner tried them both and was suprised that they worked.

Also I passed inspection in Massachusetts with the tune.

This information wasn't out there when I chose ecutek vs uprev, but I'm super happy with the tune and can recommend Kaizen tuning.

I may be wrong but the base model comes with an open diff and that may be why ecutec doesn't want the lc and ffs active, I have a quaife installed on my car.