WRC CT20b

Q&A regarding engines, turbos, and intercoolers and power upgrades

Postby Simba » Wed Sep 23, 2009 8:19 pm

built2run wrote:how would I find the rally ecu ?


1) You wouldn't.

2) Even if you did, it would cost north of 5k, be extremely expensive to make work in any fashion with a production engine, and almost certainly destroy said production engine in short order.

A good EMS will do everything (and more) that a TTE ECU will do, for a fraction of the cost, and with software you can actually modify.
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Re: WRC CT20b

Postby Overtriped » Mon Oct 27, 2014 2:11 am

Image
Image

Stumbled apon this thread. Here's my 205 WRC swap. Interested to see how yours turned out.
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Re: WRC CT20b

Postby Overtriped » Wed Dec 10, 2014 4:30 pm

Did a road test finally with no boost leaks. I'm assuming the waste gate flap is stuck on my downpipe, so it over boosts.
The turbo spools and fuel cut hits about a second or less on WOT. Telling me it's gonna make some Big torque right off of the idle! :evil:
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Re:

Postby MWP » Mon Dec 15, 2014 10:57 am

Simba wrote: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.


Its an old post, but since its been dragged up again...

Pretty much the only things right here are the first two points.
The 205 and Corolla WRC cars anti-lag systems are not complicated.
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Re: WRC CT20b

Postby underscore » Mon Dec 15, 2014 7:11 pm

Regardless it's just a really complicated way to destroy turbos.
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Re: WRC CT20b

Postby MWP » Tue Dec 16, 2014 12:28 am

No, its a really good way to destroy turbos... all that extra low down response and torque.
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