st 204 turbo Options

[thorshammer]

Hi I have a st204 Celica with 5fse engine and am wanting o turbo it. I have read 1bwilson's and Shid's posts on turboing a 5sfe and list of components needed and this seems to be the best way to go. In my neck of the woods CT26 turbos are hard to come by, T3/T4 turbo is easier to sourc.e My question is what T3/T4 do I need and other than a CT26-T3/T4 adaptor is there anything else I need. I live in Australia so Mustangs and other American cars are not common here but plenty of Japanese sources. Thanks

[lagos]

You can use the 98+ head too. You just gotta put all the electronics from yours into the newer engine. The crank angle sensor can be left unplugged into any ECU but installed onto the engine for later use with the megasquirt, yes.

Can't you just use the crank angle sensor inside the distributor on a 5sfe?
I know some 5s models came with an actual crank sensor, but on the 3sgte we take both crank (NE) and Cam (G1/G2) from the distributor.

It requires a few modifications to use (particularly installing a Zeal Dual VR conditioner board.

It might require the Zeal board, but only if you are using the standard MS2/PCB setup. The DIYPNP kit (microsquirt based) I used on my 3s had an optional LM1815 circuit included, but I never needed to use it. All I had to do was install a 33 kohm pull down resistor, to lower the pickup threshold for the the cam signal. The NE crank signal had no problems being picked up with or without a pull down resistor.

Because of this I think the DIYPNP kits are the best solutions for the 5s/3s. Same setup that I have should work with a 5s distributor (aren't all toyota distributors 24-1?) , and if you happen to find out that you need to run the signal through the conditioner, there is one included on the circuit board.

You might be able to get a crank only setup to work, but personally Id rather have sequential injection.

This post has been edited by lagos: Jul 8, 2013 - 10:41 PM