Hey everyone, longtime reader from Qld, Australia, first time poster. I have been extraordinarily lucky in my vehicular endeavors recently. I managed to aquire basically my dream car for only $2500. It's a 1985 Mitsubishi Cordia GSR, 1G 4G63 DOHC 2L turbo swap, front-mount cooler, Microtech LTX-8 ECU, retrimmed interior, Ford Blood Orange, its beautiful. But...it also makes 45hp, at the wheels.
That's not a typo. The guy who put it on the dyno said it's running way too rich and the timing is so far out it's hilarious. But before i can get a tune done, i need to replace the throttle body i broke. I over-tightened the idle control switch and broke the thread off the side of it. Finding one of these TB, especially off the 1990 HG Galant with the built-in unremoveable FIAV, is basically impossible. I've searched online and every wreckers i can find within 300km, and after speaking with the guy up at a local performance shop who himself loves and specializes in the 4G63, he recommended getting an aftermarket replacement.
After some research i stumbled accross the S90 Pro TB: click
Now given my engine is the Cyclone intake with the 60mm TB, should this one bolt straight on? I can't take the FIAV off my current one so i've been told getting a deletion plate to remove it completely is ideal. It wasn't plugged in anyway thanks likely to the aftermarket ECU. Does this sound right?
My current idle adjusting screw thingy (serious WTF is it called) that no longer screws into the side of the throttle body had a little tag on the end for a wire that went back into the firewall. I assume this was some sort of closed-throttle sensor for the ECU. This new one i'm looking to get doesn't have that is that ok?
With this new TB installed, does the ECU need a retune or should it work well as a simple bolt-on replacement?
Prepare for incoming car porn pics. Some of these you may want to hide your children or those sensitive to awful power curves and glowing headers. Enjoy!