Here's the dyno graph.....>

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Sep 27, 2004 | 10:06 AM

~~Mat Indukts Lambos~~

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Here's the dyno graph.....>

<center><img src="http://pictureposter.audiworld.com/54525/334whpdyno.jpg"></center><p>We noted the afr on the graph was considerably higher than what the afr was on the wideband that's installed on the car. Given the EGT readings we were seeing, I'd tend to believe the afr's on the graph (being read at the tailpipe) are about .5-1 higher (leaner) than what was being read in the car (sensor is about 15-16" after turbo).

EGT's peaked at about 1020 C during the entire dyno session, running 28 psi of boost. Fuel pressure could've been increased, there was more room as it's only set at about 3.8 bar base pressure, but all was running ok IMO.

Thanks for all the compliments I got at H20i!

Sep 27, 2004 | 10:39 AM

~~Mat Indukts Lambos~~

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And some other shots of the car. (BWW on this one)

<img SRC="http://pictureposter.audiworld.com/54525/shoppics804_022.1.jpg">

<img SRC="http://pictureposter.audiworld.com/54525/shoppics804_035.jpg">

<img SRC="http://pictureposter.audiworld.com/54525/shoppics804_036.jpg">

<img SRC="http://pictureposter.audiworld.com/54525/shoppics804_040.jpg">

<img SRC="http://pictureposter.audiworld.com/54525/shoppics804_041.jpg">

Get up on that gator.....
<img SRC="http://pictureposter.audiworld.com/54525/vir-car-42-05.jpg">

<img SRC="http://pictureposter.audiworld.com/54525/mat_audi_vir_apr_2004l.jpg">

Sep 27, 2004 | 12:49 PM

xr4tic

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Very nice....

I like that it has a lot of usuable RPM range.

What's the A/R on the exhaust housing of the turbo?

Was this done on a Dynojet?

Sep 27, 2004 | 12:58 PM

~~Mat Indukts Lambos~~

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Dynojet......>

afr's were at lowest, around 10.8, but I'd say they were normally around 11.5. On that afr graph, IMO they were around .5-1.0 lower. Could be mormal too, since the exhaust had the full length of the car to burn off any remaining fuel, which would then give a leaner reading, eh?

Sep 27, 2004 | 01:42 PM

xr4tic

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lol, not AFR, A/R

the turbine scroll ratio - A/R

ex: 0.48, 0.63, etc, etc

Sep 27, 2004 | 01:59 PM

RAD69

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Wow, very nice... it seems to pull right to redline

I am looking into turbos right now and have to decide on which exhaust housing I want - like John asked - what is your A/R on the hotside? .48? When do you see full boost?

Sep 27, 2004 | 04:25 PM

~~Mat Indukts Lambos~~

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lol indeed. sorry, I've been doing homework for a few hours......

We're not entirely sure what the a/r is, since ATP (Another Stupid Problem) failed to answer me when I asked. We've collectively guessed it's either a .48 or a .50 trim.