Engine Swap Forum

It's getting to be time for me to swap in the 3.5 into my Altima, and I talked to Fred before and others, and it seems like tuning a stand-alone EMS will be pretty difficult if you don't have any real knowledge of tuning, or if you don't have access to either a dyno (I have neither).

Because of this reason, I had planned on going with the 3.0 timing bits and ECU, but I as the engines progress and become more potent (like the HR's) I wonder if maybe I shouldn't go with a stand-alone in case one day I do decide to try to swap in a more potent version of the 3.5 and can't do the timing bits swap.  Not to mention, since it's not going into what was a 3.0 Maxima, I wonder if it'd be easier to hook the harness up if it's a custom EMS harness than trying to make the 3.0 harness fit with the rest of my car.

Like I said, I have no real knowledge of ems tuning so I'm kind of scared of blowing my engine or just having it not run at all for weeks or months on end. 

 

Thoughts?

Since its NA I think you'll be fine on your own. Just make sure you have a GOOD wideband and data logging system.

I dont know much about tuning, but Im not close to getting there. Theres lots and lots of info out there you just have to find it. I will be doing it all myself though.

Best thing to do is just look at a bunch of fuel and timing maps from the 350z guys, that way you'll get an idea on what to run.

~Alex

Sup pals ,

I also have no experiance, exept a little Safc2

I am at the point where i am congifuring my MsII, and damm there is a lot of parameters, and of corse i dont want to screw anythings

seriously the way i see it , piggy back (addon to Oem ecu ) safc2, greddy emange etc are easier , cheaper . 200-300 $

commercial stand alone , aem ems, haltec etc. are tougher , more expensive , more control, i guess they are great , but i dont know much more 1-2k+$

Megasquirt 1 and 2 was intend to be a eduacational project ,but finish in enthousist street cars, drags etc , its kinda cheap  for a stand alone aprox 400$. I htink its the best way to learn . , learn car electornics work , how tuning works , it might be more hard to tune than a commercial one but you will learn more for sure .

 

High

 

if i were you i would get a greddy emanage ultimate. you get 95% the features of the standalone, for <1/2 the price.

that was part of the plan of going with an OEM ECU.  I figured since it's a piggy back I would have an idea off hand of what settings are there already and go from there, and if I feel I'm about to screw things up just run off the OEM ECU again minus the EU. 

I'll tell you what, First hand: stay away from the emanage and the VQ30 EMS. It does not function to control both fuel and ignition and it will not kill the Rev limit either.

If you want to utilize the swap for all it is go with the stock ecu, there are nats bypasses or you can set the decoding ring up around your igntion, if you are going to street the car you need it reliable.

If you do not mind loosing VVTC go with the Megasquirt and EDIS 6. I know it works and went through hell to figure it all out and now there are guys who can send you the files for your set up.

 

You won't be stranded.

 

Drew

how do you feel about EU on top of an 02/03 ECU?  After reading up a lot on Maxima.org and seeing some threads on there recently, I'm actually considering using the 02/03 engine harness and ECU/etc.

I figure since I'm putting the engine into a car other than a 4th gen Maxima I'd have a custom wiring job anyway, why not skip the timing parts aspect of the swap?

I can't say I have not tried the 02//03 EMS. If there are guys who have made it work than great. It never did with the VQ30 EMS.

I agree preparing for the future is the right thing to do.

Drew

drews240:

I'll tell you what, First hand: stay away from the emanage and the VQ30 EMS. It does not function to control both fuel and ignition and it will not kill the Rev limit either.

Which emanage are you referring to? (EU or EB)

>95% of all VQ35 swaps into VQ30 maximas have utilized the stock ecu..

One of the fastest NA 3.0 maximas (13.0 ET - IIRC) was running the EU to control fuel, timing and rev limit.on the stock 3.0 ecm.

I run the EU on top of an 03 ecu. (A33B)

What year VQ30 ECM??????

I am refering to the e-manage ultimate with the 96 Maxima ECU and it did not work,

They did not make a VQ30  in 03 and if you read my answer i said i did not know about 02/03 ECU's dude.

 

Drew

drews240:

What year VQ30 ECM??????

I am refering to the e-manage ultimate with the 96 Maxima ECU and it did not work,

You were doing something wrong then.

You should spend some time on the .org. 

Right off the top of my head, I can name members with the EU and the following VQ30 ecms:

00-5MT, 99-5MT, 98-5MT, 97-5MT, 95-5MT, 95-4AT