high power street car. My build thread is here:
DIY - 335IX built motor/trans single turbo build
Figured I might as well start a thread for this. I was running pure600s on a stock bottom end. Too much torque, even ramping boost in slowly. I bent a rod. I'm putting it back together with a stronger motor and transmission. I'll document the build here for all the work. The motor has the...www.spoolstreet.com
I miss the real time tuning and datalogging of standalones on this platform, but I do recognize the stock DME is fairly powerful. I've tuned Haltech, AEM, Wolf, Fueltech, Motech, TEC, etc...
That said, there's a lot of undocumented logic with few people who have actual answers and a lot of clowns recommending bad practices. For example, I've just found out that leaving the boost reference connected on the FPR is a bad idea, as the DME will pull back duty cycle to reach target, aside from trying to run the pumps into near useless territory. I'll be addressing that with some table changes and removing the boost reference and setting the static pressure to 80psi and likely adding a BPM4 to run the pumps.
On the other hand, oem ecu has a good bit of safeties, granted, I need to deal w/ the false knock still, but I'm taking baby steps.
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personally for a high powered street car i would try and stick with the eom ecu for as long as you can.
as you already know getting the low rpm drive ability and warm up phase, cold/hot start similar to oem can take a good bit of tuning time on a standalone.
if you were getting too many limp modes, other ecu related issues, wideband or direct injector related issues driving on the street, enough to spoil your enjoyment of the car then i'd consider going stand alone. however i think most people would find street driving pretty forgiving on the lack of oem ecu flexibility up to a point.
since fuel economy is not on your agenda, i would consider any of those ecu's you are comfortable with not just the syvecs and weigh them up based on qty of inputs/outputs, knock control method and other features you want.
