Case Studies – Project Supra hits the Dyno!


When we last left our 1997 Anniversary Edition Supra, it was just getting used to calling to it’s new owner and had been modded for the first time in its life.

Because the car is so new, my friend is adamant about going slow and keeping it BPU for a while. He even goes so far as to utter the sentence I have heard about a zillion times from customers over the years.

“No, I’m more than happy with this power level, I don’t need to mod the car any further”

When people usually say this to me, I snort in derision and just sit back as the mod bug proceeds to take a huge bite of their wallet.

My friend has been a employee of Apexi for over 7 years, and even he cannot deny the temptress that is the 2JZ.

Within a few days of installing the old school Super AFC, he went out and purchased an upgraded turbo, manifold, Greddy 4 row intercooler, a full set of Greddy gauges, and 660cc RC injectors.

The turbo installed is a T4 62-1 with a 4 inch inlet .70 a/r compressor, with a stage V 1.01 A/R exhaust side.

For a rough idea of how much of an upgrade this small turbo is, take a look at this side by side comparison of a T4 62-1 and a CT26.

He’s elected to go with a SSAutochrome style Ebay log style manifold coupled with a 44mm Tial wastegate dumping back into a 3inch downpipe and full exhaust with a high flow cat.

With just a few mods and a turbo / manifold swap, we head down to our friends at DSR, check them out here : http://www.dynospotracing.com/

Using the DatScan datalogger, we tap into the Supra’s ECM to get a firm readout on the engine’s vitals. More importantly we determine the tip-in point for boost as we dial in the fuel trims accordingly.

We are aiming for a 12.5 AFR at the transition and a rock solid 11:1 at WOT until redline. The Supra is running 22 psi of boost through a full catback and 3inch Vibrant High Flow Catalytic Converter.

After just an hour, the car put down a SAE corrected power level of 521 with 433 ft lbs of torque.

The Supra put down a very healthy number with an excellent fuel curve, all for just a handful of mods. Next up for the car is a bigger turbo, more boost and Crower cams!

Congratulations Eric!

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