As you can see in my sig, I have 2 '84 Audi's one is the street legal coupe with an N/A 2.6L 20v running 034 1C and E85, I track it more than I drive it on the street, I decided to go full racecar hence the 4000q R.C.O.D. (racecar of death!). Here's an old build thread going back three + years on the car: https://grassrootsmotorsports.com/forum/build-projects-and-project-cars/1984-audi-4000-quattro-of-dilapidation/62328/page1/
The basic setup: suspension, brakes, drivetrain, interior, safety (it'll need a new cage at some point), is done. So the last major step is the engine!
Vital stats on the build:
300-350 reliable whp (350-400 crank hp). on E85, track only so will always be running it hard and at full boost! I'm really after minimal lag, big flat torque curve.
Car with driver should weight about 2,700lbs.
Early (?) 7a (it came with a header instead of the cast manifold), stock rods and pistons, ARP rod bolts, basic rebuild, hone, rings, coated bearings, valve job, 3B water manifold machining (HANK!!) on head, block drilled for turbo oil return line, ARP head studs. Currently have steel head gasket, considering doing a comp. dropping gasket to 9.5:1 or 9:1
3B intake, 3B valve cover, 3" downpipe with 5 bolt T3 flange (thanks Wiley!), two 034 "crack 'o matic" welded tube header with T3 flange (thanks Jim and Wiley!), 034 mount bracket, stock wastegate with 2bar spring (thanks Jim), 044 hi flow fuel pump, 60# injectors, 034 1C, 034 aluminum flywheel.
Yet to be purchased/decided: turbo: GT2871R (do I need the anti surge housing?) T3 flange 5 bolt outlet
Intercooler size and placement
boost controller: looking at the Innovate SCG-1 http://www.innovatemotorsports.com/products/scg1.php
Crankcase vent system/catchcan
clutch, spec stage 2+?



















