[s-cars] A4 turbo mod questions

[Michael Lardizabal]

Steve-
 
PM Mike Toxcheap over on Motorgeek.
 
He built his brothers 1.8T up to 400+ hp and tuned it at EPL. I was there that day and it was very impressive. I'm sure he'll be happy to share what he knows what a GT's fueling needs are at low boost.
 
So long as the injectors stay in place and there's a boost gauge and AFR gauge with the car......a stock tune just might be safe. Its going to map stock level boost ( low _lower) and stock level fuel which shooting thru the 52lbrs might be fine.
 
Gabe Caldwell has been running his Urs4 w/ RS2 turbo and injectors on a stock tune for yrs with no adverse effects. I know its apples to pears.....but same principle insofar as fuel+map-boost.
 
You can always add in a manual boost controller and dial it down....waaay down.
 
Good luck.
 


--- On Wed, 4/7/10, Mark Rosenkrantz <speedracer.mark at gmail.com> wrote:


From: Mark Rosenkrantz <speedracer.mark at gmail.com>
Subject: Re: [s-cars] A4 turbo mod questions
To: "Steve Marinello" <smarinello at entouch.net>
Cc: quattro at audifans.com, "S-CAR list" <s-car-list at audifans.com>
Date: Wednesday, April 7, 2010, 10:08 AM


I'd expect you can use a lower hp tune, but not stock.  The bigger turbo and
larger injectors will make the maps have difficulty not going overly lean
and rich (and probably back and forth).  The real concern is under full
throttle loads.  You're just asking for trouble not going with something
tuned for the package.

Mark Rosenkrantz

On Wed, Apr 7, 2010 at 9:32 AM, Steve Marinello <smarinello at entouch.net>wrote:

> I know this isn't S-car related, but I am considering an '03 A4 1.8t that
> has a big turbo mod and Revo switcheable software.  The components include:
>
>
>
> 1.      ATP GTRS turbo hardware
> 2. ATP Manifold 1.8T Longitudinal HighFlow
> 3. Revo Big Turbo software
> 4. EuroCode Tuning EPipe TestPipe
> 5. Bosch 52lb - High Impedance 550cc injectors
> 6. 4 Bosch 3 Electrode Spark Plugs
>
>
>
> The car also has a Neuspeed cat back exhaust and Carbonio intake.  That
> being said, any idea of how something like this would run on the stock
> programming?  It has Revo's switchable capability and I'm wondering what
> the
> stock tune would be like in terms of lag, performance and mileage.thinking
> of putting the kid in it with stock programming.
>
>
>
> Thanks,
>
>
>
> Steve
>
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