toymotaguy

hello i am doing my research before going crazy, I have a 95 sc400 4.0 v8 automatic, my question is how to tune for a centrafugal supercharger setup while keeping tractiction and cruise control i dont want the engine light to be on and i am keeping automatic transmission. what ecm or ems should i run i cant seem to find a plug and play solution

toymotaguy

i see alot of choices with no clear answer im am not entirely worried about cost im looking for a good unit for around 1000$ i see alot of piggy back systems too please help me decide im going to tune my sc400 stock few mods then over the winter im going to supercharge it for spring and id like to be familiar with my tuning system by then

toymotaguy

heres a pic of my new sc400

toymotaguy

anybody have any suggestions ? i was told i can run stock ecu with larger fuel pump and injectors up to 9 psi has anybody done this >/>?

Clean400

iTrader: (2)

An AEM FIC 8 is a good choice if you want to keep your stock ECU and keep everything as close to factory as possible. The FIC is also very easy to tune, and can be a very powerful tuning device in the hands of the right person. It's not expensive either.

With an FIC 8, Supra TT Denso Fuel pump, and bigger injectors you should be good to go.

Stock ECU does a good job at compensating for low boost regardless, from what I've read.




Wiring diagram for AEM FIC 8 for SC400. I got this from MMCTuner who got it from Carlos (both who are running 1uz turbo setups.)

toymotaguy

thanks alot i am relieved i just picked up a aem f/ic 8 for 300 bucks now one question why do i need to connect to each injector if i will be tuning using rpm maf tps and 02 doesnt the stock ecu control them anyways or is it purely to run aftermarket high impedence injectors instead of stock saturated injectors

Clean400

iTrader: (2)

The FIC 8 takes complete control over your injectors. It can control your stock injectors or bigger ones from other vehicles. Can't wait to get mine on.