Originally Posted by
Confused
I'm not sure on the LSD side of things - you'll need to check your exact gearbox for compatible LSD choices.
Yes, the ECU is reasonably expensive, but the flexibility, ease of tuning, and the advanced features it gives you over a standard ECU are well worth it in my opinion. The ability to do things like limit boost by gear and add traction control will help you put that power down, as you will be traction limited. I have a VR4 engine driving the rear wheels of a Ford Anglia, and I'm definitely traction limited - once I get those systems properly set up, it'll be a game changer for how the car drives and how well it will accelerate at the maximum possible rate. The factory ECUs could never do what I want it to do!