fsi / carbon buildup

[Cody Forbes]

Just wait until you see the gains on the forthcoming E85 tune from APR for these cars!

-Cody Forbes (mobile)

On Jun 6, 2014, at 12:59 PM, thejimrose <thejimrose at gmail.com> wrote:

> no kidding!? great now i want an allroad MOAR. =)
> 
> 
> On Fri, Jun 6, 2014 at 9:34 AM, Cody Forbes <cody at 5000tq.com> wrote:
>> No need for rumor, I've personally seen "5th injector" cars here in North America. Every new Allroad I've seen had it, and a few 2014 A4's. they are also flex fuel compatible.
>> 
>> -Cody Forbes (mobile)
>> 
>> On Jun 6, 2014, at 11:40 AM, thejimrose <thejimrose at gmail.com> wrote:
>> 
>> > rumor is that the euro audis [not m/a yet] are using upstream injectors
>> > [intake] to wash the backs of the valves to prevent / minimize carbon
>> > buildup. read any rs4 forum about it, the pictures are a horrorshow. guys
>> > rolling in with the ports 50% clogged and putting down 200hp. agreed that
>> > it's a 40k service check / job. i think most shops are doing it for a few
>> > 100$. it's not a nightmare, just another component to the vag ownership
>> > 'character'. trade your cam follower checks / replacements with decarbon
>> > treatments.
>> >
>> > also it sounds like guys running pcv deletes, catch cans, and frequent
>> > seafoaming in the intake still doesn't prevent the carbon buildup. i know
>> > nothing of chemistry but it makes sense that you need some fuel to act as a
>> > solvent to prevent carbon from forming when the engine is hot, once it
>> > forms/hardens during the drive cycle it's probably mostly there to stay,
>> > until it's forcibly removed a la media blasting and dental picks.
>> >
>> > no such issues on my sti. of course the ride quality is like being in a
>> > metal trashcan full of hammers rolled down a hill.
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>