X30XE - Making an Engine Transplant work

In this video I describe the last few jobs on the car including making the ECU Loom, Adding a modern Fuse Box to the car, Mapping on a rolling road, adding a half roll cage to the car among other things

[@vaughanh2905]

Happy Xmas dude. 👍

[@lozl]

Thanks buddy. You too :)

[@stu.c]

Intriguing teaser of the rollers just behind you in the garage! Remind me - what was your rationale behind using an aftermarket ECU versus the stock GM one? I know the explanation is *somewhere* in your thread on ScimitarWeb, I just can't recall offhand...

[@lozl]

Thanks Stu. I am so excited to get stuck into that project, gotta get the land rover done first though.
A number of things really..... primarily it was because I wanted to make as much power as possible and I thought that the modifications I was planning would be outside of what the standard ecu could handle. In addition, in some cases you can free up power by JUST switching to an aftermarket ECU, the standard ECUs can sometimes limit power with retarded ignition. I will never know if this is the case or not. The standard ECU will have had fuel trims that aught to be able to adjust but I wanted to get rid of the MAF sensor too in aid of performance and the aftermarket ECU uses a MAP sensor instead.
Another reason was that I didn't know I could make it work with the standard ecu, whereas if I followed the instructions with the aftermarket ecu it should run. And I knew I could look at every parameter via a laptop.
I suppose another reason was that I wanted to do it for the learning experience and the challenge.
I think I stand by my decision for this car as its meant to be a fun road car and track day car. But ....
I definitely have a great appreciation for how difficult it is to get a good cold start, warm up running, idle stability and, low throttle running behaviour with an aftermarket ECU.
It seems to me that (providing you have a good rolling road operator who is confident and tuned into the sound of knock), making good power is the easy bit. Any ECU can do it, batching firing or sequential it doesn't matter. Its the bits I mention above that are trickier, and require either a more sophisticated ECU and a lot of time messing about, or an OEM ecu.
So I really appreciate the benifit of staying with a standard ecu now.
Sorry for the massive overshare reply :)
Merry christmas

[@Auto-TaT]

@@lozl I was about to ask the same thing so your long answer is not wasted. With my Jag V6 I have no choice but to go aftermarket as I don't have the original ECU and the loom has been chopped up.

[@lozl]

@@Auto-TaT Thanks Auto, nice to know folk read others comments. What are you going for with the Jag V6. And what's planned for the car? Is it track only or road work too???