The GM PCM and Nissan ECU and CAN function as completely separate unit in that car. The GM PCM has full control over all engine management while the Nissan ECU and CAN systems remain to control BCM and gauges. The only non-functioning gauge post swap was the Tachometer.
ABS still works perfectly but gone is that pesky Nissan traction control because the DBW for the LS2 is now controlled by the GM PCM. Now I can do standing burnouts until the tires burn off.

 

That was Noah's car in LV. I haven't been able to get into any shows yet.
I need to start looking around for some local car clubs that could use a new member. *Hint*

 

 

Great work Havok! I will be ordering my Speedhut Tach soon as you did exactly what I had in mind!

I am have a full stand alone Electromotive ECU and ignition system for my LS1 and will be using a TH400 transmission instead of the T56. Since I just sold my VQ35 I can now afford to purchase all the parts in the next couple weeks and hopefully get going on this.

Unfortunately, Sikky was not very good at responding to my questions so I am just going to make my own parts. I am not very good at waiting for companies to beat around the bush with me.

Other than that you did a wonderful job and it makes me even more excited to get my car running!

 

The speedo and fuel level sensor are independent of the motor so that is easy as long as you leave the stock Nissan modules in the car and connected. In my application I am just going to install the stock Nissan coolant temp sensor in the unused heater core port on my car.

 

Quamen,,

Man that is weird that Sikky did not get back to you. Every time I call or email they answer all my questions.

I actually just talked to them the other day and they said that their 350z kit should be ready to order in two weeks. This is what they said
"The kit, which includes pretty much the same components as our 240sx kits but a different design and a billet aluminum short shifter assembly (similar in design to the famous "Billet Products" short shifter) with all hardware and new bushing design for $2250. "

I also talked to them about the wiring harnesses and he said that it would be around $340.

I'm just going to wait for their kit cause I have seen the S14 kits and they and very well crafted..

 

What does that price include?

Headers/Oil Pan/Trans Mount/Motor Mounts/Drive Shaft/Shifter?

 

The kit includes every thing the S14 or S13 comes with, along with a shifter.



I don't think it comes with headers,, those are extra.

 

You might was to save that for the coolant line steam fitting. The LS motors already have a coolant temp sensor on the heads.

 

I wounder where Sikky got that idea?

I paid $500 for my Billet Products shifter and had it shipped direct from AU so it could be cut in half, extended 2 inches, and welded back together so that Sikky would have a prototype for their "New Design".

http://www.billetproducts.com.au/gto.html


Before


After






YOU'RE VERY WELCOME!!!!

 

Headers were a custom weld job by JE performance. Sikky didn't or still doesn't have completed kit headers yet.
If you really want to know everything you're going to need to complete this install on your own then you really need to be calling James, Chris, or Seth at JE Performance and tell them Rob sent you.

 

I hate to sound like a "Book Club of the Month" member but if you're really interested in getting an idea of what it would take to do this swap then I advise you find a copy of "How-to-Swap-GM-LS-Series-Engines-into-Almost-Anything" by Jefferson-Bryant. It's a pretty good read and has realistic information.
http://search.barnesandnoble.com/How.../9781932494815

I purchased this book soon after getting the idea from Noah (another member on this site and the first LSX install) after my VQ blew following the turbonetics install. Both AAM and Function Tuned quoted me between $13-$18 thousand to either rebuild or replace new my old turbonetics setup. Even then neither shop would warranty their work with the turbonetics kit installed.
It occurred to me that it didn't matter how much money I was willing to spend on the VQ. There are just as many people on this forum blowing up built VQ engines as there are stock ones. The more I thought about it the more the LSX swap made sense. Right?

In truth I probably could have done this install on my own but I'm pretty sure it wouldn't have turned out as well as it did. The guys at JE Performance are world class in their attention to detail and professionalism. I feel like the smartest decision I made regarding this swap was deciding to let them handle it.
I wouldn’t have had any problems with the physical motor and transmission swap or even the electrical wiring but I would have been up ***** creek without a paddle when it came to all the custom welding involved. BTW… There was a lot of custom welding involved and I can’t weld for ****. LOL
It’s funny but every time I show my engine swap to someone they always say something like “That’s FN Awesome!” and then “Holly ****! Those welds are beautiful! That must have cost you a fortune!” as if the entire swap didn’t cost a fortune by it’s self. LOL

Lesson 1: Know your limitations and be realistic about them.

I’ve been getting a lot of PM from members asking about the total cost of this swap and I’ve been very reluctant to give an answer. It’s not that I was being an a$$ not giving an answer but rather it’s not something that can be answered correctly I think. Looking over all my receipt for this project cost me almost $21k. But that also includes parts and work not performed by JE. I’d say that if you’re expecting this to be a cheap swap over a simple rebuild or replace you really need a reality check. The initial swap cost is more expensive but future power potential is greater as well.
If you’re thinking that you’ll be able to recoup any of the cost for performing a modification of this magnitude in the future should you choose to sell or trade I’d advise you to adjust your thinking right now.
It would be easier to think about it like this…
Take 18 to 22+ thousand dollars of your own money to your paper shredder (if you have one) and start making party confetti or take it to your back yard (if you have one) with a gallon of gas and burn it all. It’s the same thing in the end really. Anytime you modify a car and more so for an expensive swap like this because in some states it may not even be legal for resale. In some states it’s not legal to swap an older engine (LS1) in a younger vehicle (2005+) and then again it's only worth what another person is willing to pay for it. Most sensible people won’t be willing to pay “X” amount of money for your modified LSX 350z when they can get a Vette for the same price or cheaper. Just something to consider.

Lesson 2: Know your limitations regarding how much you’re willing to spend and be realistic about it.

 

My Electromotive will be receiving the temperature reading from the port in the head. The coolant gauge will be from near the thermostat though.

 

I have gotten some PM's also and my response is the same. You can maybe do it for $10-$12K if you find a good deal on a motor and can do most the work yourself. Otherwise this is not a cheap swap.

I have been doing a ton of research on this for about six months now and there are a number of things people don't tell you. Such as you need a larger master cylinder for the T56 as the stock Z one is two small for the hydraulic throwout bearing that GM uses.

I would also suggest buying some performance how-to books from Car Tech that are specifically about the LS motors. They outline the significant differences between the LS motors over the years and provide some very useful information.

 

Believe me it'll cost more then $10-$12K unless you can do all the custom welding and wiring yourself and you get an LS1 + trans for nest to nothing. A Good LS2, LS6, or LS3 will cost you more than half that and the LS7 could cost more than $13K for the motor alone. It's true that the LS1 can be had for cheap though.
True about the larger upgraded master cylinder for the T56 and NONE of the kits I've seen include these parts in the pricing of the kits.

 

Yea I thought it was weird that both the kits did not include the upgraded master cylinder. Cause I know all the S13/S14 guys change theirs..

My I ask Havok, what type of welding you had to do or the shop had to do, cause I know Sikky's kit does not have any welding involved. Also thanks for the whole Billet Products shifter design..

 

Headers = Custom Welding
Complete exhaust = Custom Welding
Coolant hoses = Custom Welding
C/A Intake = Custom Welding
Drive shaft = Custom Welding
Shifter = Custom Welding

 

I can do all the welding and wiring myself no problem. It is really not that hard to do if you are running a standalone that is not specific to the Z such as I am.

In regards to the motor, I got a fully rebuilt LS1 from a retired GM mechanic out of Michigan who had it all ready to go for his 69 Chevelle but needed the money and dropped the project. Motor only cost $2,300 picked up!

My TH400+Converter+Cooler+Flexplate+Shifter comes out to about the same price as a T56+Clutch+Flywheel. Then you would have to add the shifter and the master cylinder so I come out a couple hundred cheaper there also.

 

I hear you on all that. These kits just don't seem to be "complete" swap kits like the are lead out to be. Sure they mount the motor and transmission but that is just the start of a swap.

 

Okay thats not bad I knew about all of that.. Thanks

Quamen,

Man you lucked out on that motor, nice pick up