TD Extreme User!
Join Date: Jun 2004
Location: Everett, Washington
My Ride: '88 Shelby Z TII
Engine: 2.2 TII
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Re: Any one have these measurements?
I agree that the 3.3 engine used would have been a pre-production unit, but would have used parts intended for production as it was durability testing.
I don't know what size turbo was on the engine, however I did ask. The dyno operator didn't remember. I can for sure tell you that the turbos used on the 3.0 SOHC turbo prototype engines were most definitely NOT one of the options used on the 2.2/2.5 engines. Small-ish for "big" power, sure, but more than adequate for decent power and reaction.
The tuning at the time would have been pretty much the same as the 2.2/2.5 engines. While there's certainly better options today, and different methods of control, it's hardly the same as comparing it to rising rate regulators, extra injectors, etc. that have been used in the past with varying degrees of success. I seriously doubt that the engine control was the issue...especially on a manufacturer's experimental engine on a dyno being used for durability testing. It would have had all kinds of sensors poking all in it for monitoring all aspects. I seriously doubt they would have gotten to that point without making sure the tuning wouldn't scatter it.
It's all moot anyway...the people involved either don't remember all of the details or aren't around anymore. The V6 turbo program got cancelled and it never happened. If you can succeed in doing the manual transmission swap, I think it's worth possibly looking at, but until then, the A604 has a limited life under that strain without a better shift schedule. The only OEM program known to work well is the Prowler, and the way I understand things, you have to have a VIN in order to flash the TCM...IF you can find someone willing to do it that has the stuff...and it's unknown whether the Prowler TCM program will work in a regular A604 without the "slap shift" option. Maybe the LH guys would have an easier time with this, but the FWD TM's we mess with never had that.
Yes, I have seen a few 3.3's and 3.8's with turbo's and superchargers. It does work. For how long? Unknown....