Thursday, October 27, 2011

Project Pics: David's Twincharged AW11 Induction Work

Here are a few more progress pictures of David's Twincharged MR2.  Enjoy!
Lots and lots of piping. To try to explain how this system works, we'd have to sit you down and start drawing  turbos, supercharges, piping galore and stick figures and happy faces.




During the mockup process. What's designed here is to have both the supercharged air and turbocharged air to run through segregated air to water intercoolers (each have their own cooler) then they join back together and feed the engine.

Here you can see some more piping coming thru the firewall and some AN fittings where we've run coolant lines to the air to water intercoolers. An electric water pump circulates the water/coolant mixture to the front bumper where there are two air coolers mounted behind the front bumper ducts.

This looks like a throttle body but it's not. We're calling it a bypass valve. We're using a magnetic actuator to open and close based on load and rpm parameters. What we've achieved is to close off the excess piping when the supercharger is working. Just before the supercharger leaves it's efficiency range, this valve opens allowing the boost created from the turbo (in it's efficiency range) to push more charged air into the motor.

Here's another pic of the bypass valve actuator cable. Below it are PLX Devices  control units for their digital gauges. This car is equipped with up to 12 datalogging sensors. We want to datalog intake and water temps before an after the cooler. Other guages such as EGT, AFR, Oil Temp are all getting wired in.

Two Spearco air to water coolers are stacked on top of each other with coolant lines running from it to the front of the car where two coolers are mounted.

This is where the original MR2 intercooler resides. It has now been replaced with a  large engine oil cooler, custom tig welded fan shroud that will gasket and seal itself against the hood cover. The SPAL fan will aid in the oil cooling.


If everything's custom why not make a strut bar to add? Aki fabbed up this strut bar after we finished up all the piping work.

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