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Old 17-02-2015, 04:16 PM
parmas parmas is offline
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Join Date: Jun 2013
Location: malta
Posts: 210
Default Re: Pre and post turbo injection in an audi b5 s4

Quote:
Originally Posted by HYDE16 View Post
Is there a way to block the post turbo jet to see the effects of only the pre-turbo? I'm installing a .3mm pre-turbo to start but I forget what the cc rating is.
It is very easy to block the post turbo jet. Just a tap on the water line makes it running pre-turbo only.

The only issue is that I don't want to inject much pre-turbo so I am trying keep the post nozzle fixed while changing pre-turbo flow.

When I reach my goal of lowest air temp at max boost of 18psi, I will make 3 tests.

1. Post Turbo only
2. Pre-Turbo only
3. Post+Pre Turbo

With AFRs used / Ignition Advance / Air Temps @ Throttle Body / EGT readouts / Spark plug readouts including datalogs and graphs
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