Originally Posted by
32krazy!
ips in columbus oh. built a full twin turbo kit for the e55 v8 motor in less than 4 months. after a falling out with the owner over costs it was removed and buckhead imports bought the kit and it is now installed on craig hawkins e55 total time for the install, 2 days! tuning starts this week and the car should be road ready by the end of the week. so it can be done!
Well yeah, when you're using an ECU that can do something with boost lol. The turbo is actually somewhat similar to the SC in certain conditions too... Idle, no boost. No load, no boost.
I was just contacted by someone with an SLK55 AMG that put the 55K motor in and he's still using the original ECU for the 5.4 NA but tuned and it doesn't really work. It runs but he said it's lean as hell up top and rich as hell at idle. So sure, once he has a 55K ECU that I'm building for him it'll work great, because it'll actually do something under boost.
Another example is Bart's, same story, but the C32 ECU on an NA turbo requires quite a bit of modification to a good amount of things. I'm still drawing schematics and a new layout for sensors, its a B!TC*... But yeah, with an ECU that has the drivers and processor algorithms to adjust based off the MAP and IAT signals, it'll work.