built2run":1gtl4a0o said:
simba, isn't the ALS system just inactive in the wrc st205? i'm pretty sure there is a pin in the wrc's ecu that when gronded activates the ALS
The only part of the system that exists is the bare manifold casting and the air injection pipes. The holes for the pipes are not drilled through on the production manifold. The pipes are the only part of the ALS system that exists on the production cars, and it's a tiny part of the whole system.
You'd also need the air pump, VSV assemblies and plumbing, ALS sub-harness, and the rally ECU, which is entirely different from the production street ECU.
None of the ECUs produced for street use have any ALS provision whatsoever.
Moreover, ALS is not a "ground it and it works" system. There are many levels of ALS which are used with different programs for different situations. E.g. the tarmac ALS program is the most aggressive, the winter/snow program the least, and so forth.
ALS has no place on a street car. You can fake it with timing tricks that most of the aftermarket EMS units can do, but true air injection anti-lag will destroy a steel turbine turbo inside of a thousand miles. That's why TTE went to very exotic materials to give the turbos any kind of life, and even then they only last a very short time.
You
could roll your own ALS system using a 205 WRC manifold, and control it with a good EMS that has enough IO to run such a system (you need to monitor, and actuate many things), but you would in effect be starting from scratch so far as activation scenarios and logic go. You'd be where Toyota was in the early 80's, only without the million dollar R&D budget.
To make a functional air-injection system on a 205 WRC manifold, you'd need:
- CT26R (or other) inconel turbo, or a few dozen Garretts.
- Drilled manifold so the "pipes" can actually deliver air into the exhaust stream.
- VERY powerful air injection pump-- you could probably use something from an emissions system. Ferrari did this for a while on the 355 and 360.
- High temp exhaust/air VSVs. Again, Ferrari makes one. They're $400 each. You'd need four.
- An EMS with lots of IO, probably Motec or EFI Technologies.
- All sorts of VSVs, plumbing, and a stellar crapload of R&D time.
Expect to pay around $15k to build such a system, and on a street car, the only use of it would be to destroy turbochargers.