All Things Mk5 > Performance Modifications

Audi TTs / TT-rs injectors

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Teutonic_Tamer:

--- Quote from: BDMAlex on October 20, 2010, 11:34:22 am ---
--- Quote from: Teutonic_Tamer on October 19, 2010, 10:48:02 pm ---
--- Quote from: BDMAlex on October 19, 2010, 02:25:52 pm ---RS4 injectors run around 15% more than the S3/ED30/Cupra injectors.  The main reason the RS4 injectors were used in the first place was due to the S3 ones not being available in the US as they dont have the S3.  They had to wait for the TTS to come out over there.  The only issue with the RS4 injectors is the spray pattern isnt perfect, but they still run ok and start up is ok too.
--- End quote ---
Oi - whadya mean the RS4 injector spray pattern isn't perfect?  Don't you go dissin my ride, dude!  :evilgrin:

Seriously, whats wrong with them?  Is it that the RS4 injector pattern doesn't suit the combustion chamber design of the 2.0 TFSI? :popcornsoda:

--- End quote ---

I am sort of dissin your ride  :love:

As KRL has pointed out with the perfect picture.  They are not 100% suited to the 2.0 FSi combustion chamber design.  Looks like there is less overall spray to help with the air to fuel mixing?

--- End quote ---
The air/fuel mixing is primarilly down to the swirl and tumble effects from the inlet manifold, ports and piston crown design.

I wonder if the wider spray angle of the two 2.0 TFSI injectors are more prone to bore washing?

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