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My ‘84’ 4000 quattro’s I have three that are not parts cars and they are all black. My insurance agent loves me, especially trying to keep them separated. One is my daily driver, which has 250,000 miles on it with no major repairs, original clutch and neither head nor pan has been off. The second is my wife’s daily driver with 180,000 miles and the third is my project car which is getting an MC turbo out of an 89 200tq. First my driver, which is in very good shape thanks to friends with a body shop. I also bought it from them as a rebuilt total with 130k on the clock. I found through help from the quattro list that the Boge Turbo gas struts are the best for the money and I really like them. The car has also received wheels and other non-interesting maintenance. I started by updating the side windows with ‘85’ windows without wings as I hate wing windows. I have installed Ram-Air on this car, keeping in mind several items, one is to try to keep the inlet as high as possible to minimize debris and water ingestion. I also placed a drain hole to help. I can definitely say that this has improved performance. I have been running this for 4 years (apx. 80,000 miles) and never ran into "carb iceing" on the airflow sensor as I did once with my rabbit GTI with a similar setup. I live in Spokane WA which gets it’s share of cold and snowy days. I chose to remove the high-beam headlights and use the hole for right one, with both covered with grill. I have replaced the lost high's with good driving lights mounted on top of the bumper for optimum performance. I also run H4's with 55/100's so lighting has been improved as well. My project car is in the process of receiving a MC Turbo engine out of an 89 200 tq. I have the engine installed and most of the wiring figured out. Due to the differences in wiring I doubt that specific info that I have figured out can be of much help to anyone else unless they are also installing an early single knock sensor 89 MC. There are two common choices about what to do about the airbox, either just buy an UR upper or cut and glass back together a stock 4kq upper, other options include cutting the fender and installing a 5kt airbox or trying to plumb the air intake without turning it around. I decided on a new approach which offered a few added benefits. I heli-arced an airbox together out of 1/8 aluminum. The bolts on the side allow it to use the stock mounting holes for the side and a third bolt through the bottom which is adjustable. This arrangement allows the airbox to be tipped forward and with the engine side slightly down easing intake plumbing. It also has a larger intake to the airbox through the bottom instead of the front which will allow for a air intake track that will allow maximum cold air intake and even possibly a little “Ram-Air” effect.I certainly have no concern about “carb-iceing” on this car due to the unavoidable heat in the engine compartment. It even appears to me that Audi did not run a heat tube on the ur-quattro. I found that the fuel lines were not too hard to get routed satisfactory but appears quite difficult to be as neat and clean as OEM. First is first and getting it in and running right will happen before I start modifying other aspects. This car will not be a daily driver and will have as much lightening as possible. I am also planning on getting it to the track and rally racing it a bit while still barely street legal. I have several ideas of things that should work for my purposes that likely would not for others. One of these is modifying a Dodge TD intercooler as it appears that I can shorten it though it still will be VERY long. According to my measurements it will fit between the outer headlights if the inner headlights are removed. If I am lucky (not the norm) I will be able to bow the intercooler to match the curve of the front of the car and use the intercooler as a grill though the core support will have to be severely modified. Another is related as the intercooler will block airflow to the radiator and as I intend on running this hard additional cooling will likely be necessary. I have thought of running a secondary radiator in the trunk or possibly only a trunk mounted radiator.
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