MembersPage/MarcellGal/PowerAndTraction/CompressorChargeCooler (2007-07-11 20:09:48)

Subpage of MembersPage/MarcellGal/PowerAndTraction

The real charge cooler:

http://www.vems.hu/gallery/main.php?g2_itemId=327

[See more pics]

We can mount this cooler horizontal or slanted in appr atan((70-28)/660) angle (which might look ugly). Anyway, it must clear the hood-hook, and with total height appr 340+70+70=480mm still allow reasonable clearance from pavement or other obstacles. Obviously, air will flow vertically. Unfortunately the air is turbulent at the nipples. I'll ask if they can weld on a bended tube.

Drawing made with European style projection:

cooler.png

Download same in [cooler.pdf vector format]

Hungarian text:

Felfogatás a rajzon kék fülek az oldalán


S4 intake idea dropped

The current intake has the opening at the rear part of the engine, pointing towards the exhaust (the only worse way would be a counterflow 10-valve ;-) . The S4 intake has the tube at the side (45 degree, going towards a front-mounted charge cooler). Unfortunately, this upgrade would effect:

Unlike the audi80, in the audi200 it's not possible to rotate the radiator 90 degrees (via horizontal axis) to gain space, because of a strong beam interfering in the bay that probably protects in a frontal crash.


Get boosted first, meausure, than evaluate

Before the final cooler placement is sorted, we decided to evaluate a quick-setup. We have doubts about the performance of the currently mounted charge cooler, but it was easy and cheap to make a tubing using flexible 10bar tubes and a few elbows. This setup should be suitable to measure the performance of the cooler, and to tune upto appr 240..250kPa (1.5 bar boost).

The cooler was washed internally with solvent to remove junk.

The tubes got some heat-insulation to protect them and help keep MAT down.

http://www.vems.hu/gallery/main.php?g2_itemId=100

After MAT and pressure-drop measurements, we'll see if