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Part 10: ECU and Transmission
After some research, it became evident that the Edelbrock ECU was not up to the task of managing a turbocharged engine. I did some searching and decided to do a DIY controller called the MegasquirtAVR. It is a project that evolved from the original Megasquirt, but it has much more tuning power and controls timing based on manifold pressure. Below you can see a picture of the board, the not so pretty enclosure I made for the unit, and the LCD that can be used with a PS2 keyboard for tuning instead of a laptop. It is also good for monitoring engine temps and pressures.
The transmission is a TH350 race built by a friend of mine and is backed by a 10 inch Torco race converter. I also added a combination transmission/engine oil cooler to help out the radiator, which was donated by a late model Camaro, and try to keep engine oil temps decent with the tall grouted block and turbo.
The below picture shows the transmission and the tubular cross member with Urethane mount. It was a REAL tight fit with some hammer work involved. I actually had to cut holes in the floor to tighten the bolts. This was due to me moving the engine back about 2 inches over the standard S-10 V8 setup. This was for weight distribution of course. Hindsight is truly 20/20 here. If I had known it would be this tight, I would have put a new trans tunnel in. I will have to eventually when I get to a track that is a stickler for the flywheel shield. It has an SFI approved flex plate, but a shield is still required under a certain E.T.
Click here for Part 11: Interior
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