LemonA8

I should have the compressor housing on Tuesday from ATI. It would be nice to see the housing sit on the passenger side of the engine compartment ie (remove airbox) but it looks like the drivers side is the only spot that will yield belt alignment. So with that being the best location a front mount air to air intercooler is in order I think.

1 Ati procharger
2 custom made power steering and supercharger mounting bracket.
3 longer 6k belt
4 1.8T PS to waterpump belt drive to run ps pump
5 3 inch tube
6 front mount intercooler
7 Vortech FMU
8 Bosch injectors (working out size?)
9 air flow meter extension harness
10 Rs6 type sparkplug's
11 parts to disable manifold changeover

going to setup the car with 6.5 psi,and leave the timing alone as the factory timing is not aggressive. So I see no need to chip tune. I'll play with fuel only on a Dyno and see what kind of power she makes.

PaulW

I have a whole flolder of any and all super charger pics....here's the best ones.

<img src="http://www.audipages.com/images/russian1.JPG">

<img src="http://www.audipages.com/images/russian2.JPG">

<img src="http://www.audipages.com/images/russian3.JPG">

<img src="http://www.audipages.com/images/russian4.JPG">

<img src="http://www.audipages.com/images/russian5.JPG">

<img src="http://www.audipages.com/images/russian6.JPG">

<img src="http://www.audipages.com/images/gambellas81.JPG">

<img src="http://www.audipages.com/images/gambellas82.JPG">

<img src="http://www.audipages.com/images/gambellas83.JPG">

<img src="http://www.audipages.com/images/gambellas84.JPG">

<img src="http://www.audipages.com/images/gambellas85.JPG">

<img src="http://www.audipages.com/images/gambellas86.JPG">

<img src="http://www.audipages.com/images/gambellas87.JPG">

<img src="http://www.audipages.com/images/gambellas88.JPG">

LemonA8

I'm pulling the manifold off and setting it up like an MB s55 compressor.

PaulW

I wish you luck, will you do a wide band tuning on a dyno at the end? How will you increase fuel flow? With aftermarket injectors? How to control them?

LemonA8

easier then a turbocharger.
I wanna also keep the compressor close to the throttle body, for every foot of pipe = like 1 psi of lost boost. Even hard bends start to retract from it's efficiency.
since turbochargers work under load they are very complex to fuel. Superchargers especially this application with fixed psi of 6.5lbs will require more fuel from about 2,800 rpm's to redline. If I run a larger injector I can still use the factory firmware and electronics. If injector size and duty cycle become a problem I can play with fuel pressure, rising rate fuel pressure which could add say 5 lbs of fuel pressure for each lb of boost.
People make tuning out to be some form of black magic, a perfect air fuel ratio under boost is all I need to make more power. An Audi motor will not allow it's own death, if it runs lean it will show many signs before it comes apart

PaulW

After reading that supercharger book, lean is the kiss of death for a supercharged/turbocharged engine!!!

Look forward to your progress.

OOOOya

...and that's not to say I am an every-application expert, nor would I want to come off as telling you "how it's done".

I'd like to steer you away from the rising rate regulator. I've played with a good range of band-aid fueling items on my roots supercharged [unmentionable non-Audi] and it's lived because of a programmable ECU, a wideband o2 with numeric display, datalogging, high volume fuel pump, and big injectors. Basically a total system upgrade. Leave the fuel pressure a predictable constant if you can and change the injector pulse width to suit the fueling demand.

Of course the programmable ECU is a major luxury item, and I wouldn't know where to start on that end of things with an Audi. I just know that a rising rate fuel pressure regulator will always either raise the fuel pressure too much or too little at certain RPM/pressure ranges.

The ignition timing curve is a whole other ball of...
Even a low 5-6 psi, you absolutely must be able to retard the timing unless you plan to run av-gas or suppliment toluene, xylol, etc. Non-intercooled boost + todays naturally aspirated compression ratios is where detonation breeds. What's worse is the longer you stay in boost, the hotter the temperatures get, the higher the cylinder pressures, the more detonation.

As long as you are going at it on your own, I'd say pipe the boost through an IC and the fuel &amp; ignition requirements will be less aggressive, suggesting that you might be able to get away with some things a non-IC system can't live without. There are a couple options other than the standard air-air front mount. Laminova is one attractive liquid-air IC because they are relatively compact for their cooling abilities.

mcarcane

sounds awesome...im jealous cant wait to see how it works

gtreng1

.. a local college Formula SAE team, see if they can get you one for a discounted rate. You might have to donate $ to the team, but its going to a good cause. They get deals on the Motec systems.

LemonA8

todays ECM makes a motec look silly... Pactel, FAST, and a few FI units do much more