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Author Topic: true anti lag system idea for 1.8T.  (Read 15003 times)
Terror_Flynn
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« Reply #15 on: March 25, 2015, 09:53:25 AM »

Evo cars have an pretty good ALS hardware setup I think. They bypass the cylinder head completely, running air injection tubes straight into the exhaust manifold. So it must be a bit easier on the valves. Turbo and manifold are always gonna take a beating with ALS.

Have an turbo speed sensor in the compressor housing, you could have a minimum/maximum turbo speed threshold value to control the trigger ON/OFF of the ALS-function in a ECU. Maybe an EGT-sensor too, to shut off ALS if the temperatures are becoming critical.

I'm just thinking out loud. And it started to sound more of an aftermarket ECU function than a possibility on OEM ME7.
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Audi A4 Avant 1.8t Quattro -2001 (AWT)
prj
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« Reply #16 on: March 25, 2015, 11:51:42 AM »

Evo does not have DBW until EVO X.

Makes no difference whether you run the air through the engine or not.
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dayofthejackal
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« Reply #17 on: March 30, 2015, 08:04:32 AM »

I remember seeing some trying this on another forum. They used the SAI pump but it didn't have good enough flow and didn't work.
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« Reply #18 on: May 25, 2015, 06:03:28 AM »

This is how Audi did it in the 80s

https://boostboostboost.files.wordpress.com/2013/08/umluft-2.png?w=978
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prj
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« Reply #19 on: May 26, 2015, 05:08:31 AM »

That's the only way to do it if you do not have a DBW throttle, but these cars do.
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