Stage 1 with upgraded pulley?

[GID]

The car is a 16 A7 EPL Stage 1.

APR's order of recommended upgrades is:
Stage 1
stage 2 with Drive pulley
Stage 2 with dual pulley

EPL seems to recommend the Crank pulley instead of the Drive pulley.

Can anyone think of a reason why it would matter? Would it be ill advised for me to upgrade the Drive pulley while remaining on EPL Stage 1? I don't know If I"m ready to flash to stage 2 yet but I feel like I'm leaving a lot of power on the table with only changing out 4 bolts and a belt.

My thoughts were to buy APR's drive pulley and run it on my EPL stage 1. Thoughts?

[07S6]

Replacing a pulley to spin the supercharger faster will do nothing if the ECU parameters aren't updated to make use of that additional boost.
The car will bleed off anything outside of stock parameters, so changing any pulley without the software tune will do nothing.

[GID]

Thanks for explaining that.

Can you share with me what the benefit of upgrading the drive pull is as opposed to the crank?

If I do go stage 2, why would one choose one pulley over the other?

I would prefer the drive because it would be really simple to reverse in the case I need to take it to the dealer.



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[BWilson]

Thanks for explaining that.

Can you share with me what the benefit of upgrading the drive pull is as opposed to the crank?

If I do go stage 2, why would one choose one pulley over the other?

I would prefer the drive because it would be really simple to reverse in the case I need to take it to the dealer.



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The SC pulley that EPL gives you to change when doing Stage 2 will be hard to notice the difference when just looking at it and I don't think the dealer will notice either. You will notice the performance upgrade. If you change the pulley you must flash your ECU with Stage 2.

[Chris@EPL]

The OP has a 2016-2017 A6/A7 with Simos16 management and the 4 bolt SC pulley. These cars have a speed sensor on the pulley snout and when you flash back to stock and the SC spins faster than it is supposed to will trigger a CEL, so flashing back to stock would require removing the pulley. 2012 to 2015 3.0T A6/A7 cars are Simos8.5 and take the press on SC pulley and spinning the SC faster than stock does not trigger a CEL, they have a bypass valve and the car will just bypass the extra boost.