Tired of the Old Audi...

Reply Subscribe

Thread Tools

Search this Thread

Jul 23, 2018 | 08:06 AM

#121

rockstar143

Moderator
Chapter Leader (South Florida Region)

iTrader: (6)

Joined: Sep 2008

Posts: 78,247

Likes: 20,201

I think I have the diverter as well...
you'll hear it with the downpipe and high flow or removed cat!

Jul 23, 2018 | 08:32 AM

#122

SamDoe1

Ex-OEM King

Joined: Dec 2013

Posts: 17,878

Likes: 7,024

From: Minnesnowta

Diverter is the way to go. Dumps excess pressure back into the intake so it doesn't need to be done again rather than dumping it outside where it doesn't matter. Also, less ricer sounding.

Jul 23, 2018 | 09:21 AM

#123

rockstar143

Moderator
Chapter Leader (South Florida Region)

iTrader: (6)

Joined: Sep 2008

Posts: 78,247

Likes: 20,201

it's what the car came with though...
I think I replaced mine on the Audi...the diaphragm on the older ones was prone to separation and leaking.

Jul 23, 2018 | 11:08 AM

#124

brian2

Safety Car

Joined: Oct 2002

Posts: 3,963

Likes: 811

From: NJ

Quote:

Originally Posted by 1killercls

OK..will do later today.

Jul 23, 2018 | 11:38 AM

#125

1killercls

Thread Starter

GEEZER

Joined: Jan 2003

Posts: 44,444

Likes: 2,227

From: Dunedin, Fla.

Quote:

Originally Posted by brian2

Jul 23, 2018 | 11:49 AM

#126

TacoBello

Team Owner

Joined: Jun 2014

Posts: 30,487

Likes: 4,417

From: In an igloo

Why don't you JB4 it, in the mean time, while under warranty? It's a cheap mod, and you can do it so that it is completely reversible without a trace (there's an AFR wire you have to tap, but, you can build or buy a small harness that avoids you having to tap it, making it completely reversible without a trace).

According to their site...

Quote:

The JB1 is a true user adjustable plug and play solution for all MQB based models in the VW Audi Group range. Power Gains: Starting at 45bhp and 45ft lb with 91 octane with + 4.80psi boost over stock on the default setting. Up to 90bhp and 70ft-lb with bolt on modifications, higher octane and boost adjustment with the optional BMS Data Cable.

They have a dyno on a stock A3 that appears to have gained just over 52lbft of torque. Those numbers quoted above likely are on the low end.

JB1 & JB4 VW Performance Tuner - BurgerTuning.com

Last edited by TacoBello; Jul 23, 2018 at 12:03 PM.

Jul 23, 2018 | 01:59 PM

#127

RPhilMan1

2024 Honda Civic Type R

Joined: May 2006

Posts: 4,190

Likes: 1,520

From: Chicago, IL

Quote:

Originally Posted by 1killercls

The 2.0T is a "Closed" Turbo system. It has a Diverter Valve Rather than a Blow Off Valve. Weird thing..I could hear my diverter on my old audi with a tune...can't here the the turbo or the diverter on my A3.

Same thing on the ST, until I changed to a BoV.

When I first got the car, I couldn't hear the turbo that much until I put on an aftermarket intake. Then the whoosh was nice and loud!