Let me start off by saying this build thread should have been started a very long time ago. over the next few days i will be adding all the pictures and information i can to this thread for all to enjoy and benefit from.
OK so lets get started with a rundown on the car and plans. So in August of 2016 i purchased my 2006 Audi S4 25th Anniversary Edition.
I purchased this car with the intent of it being my daily while i swap in my 2.7 into my b6. Well plans changed. i found out that this car had scored cylinder walls and the v8 engine inside was on its last limbs. The moment i found out i decided i was going to swap my engine into the 25QUATTRO.
I will try to put the pictures in the most chronological order i can.
B7 S4 25QUATTRO
Audi announced a limited edition run of 250 special edition S4 saloon cars, celebrating 25 years of quattro four wheel drive. This exclusive model was called the Audi S4 25quattro. Available only in the United States, the exterior has unique front and rear bumpers, a carbon fibre boot lip spoiler and lower front splitter, a rear functional red tow hook, and a high gloss Phantom Black painted grille with the "quattro" emblem. 15-spoke DTM alloy wheels, along with optional dealer-fitted 'Audi four-rings' decals for the front doors complete the exterior makeover. Black and grey contrasting interior leathers, along with "quattro" embossed into the Recaro seats, together with a "1 of 250" exclusive quattro gear shift knob for the manual-only gearbox define the interior changes and act as a subtle reminder of the exclusivity that the limited numbers command.
On the mechanical side, the S4 25quattro was the second Audi, after the B7 RS4 to be fitted with the latest Torsen T-3 asymmetric ATB centre differential for its quattro permanent four-wheel drive system. Under normal grip conditions, this is set with a default rearwards torque distribution bias of 40:60 front to rear, and a maximum of 100% torque can automatically be apportioned to the rear axle (and up to 80% to the front) as conditions warrant. The final drive ratios are 3.889.
I purchased this car with the intent of it being my daily while i swap in my 2.7 into my b6. Well plans changed. i found out that this car had scored cylinder walls and the v8 engine inside was on its last limbs. The moment i found out i decided i was going to swap my engine into the 25quattro.
I will try to put the pictures in the most chronological order i can.
This is day one with the engine i brought home. This 2.7 came out of a 2001. i picked it up cheap complete engine with the 01e Trans, axles, driveshaft, and subframe.
OH NO!
Bye Bye Wimpy rods
i guess it had piggies??
Paint Time
Heads in the front of the picture are from a 2.8. They had bent valves. time to swap out for the 2.7 exhaust valves.
Arp Main Studs and then sent out to machine shop for align hone and cylinder hone
Cleaned up the 2.8 heads
Building heads while block is at machine shop
Lets clean these bad boys up and remove some of that casting flash
lets do some gasketmatching while we are in there
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) 2005.5 Audi S4
2011 Dieselgate Q7 TDI..... patiently waiting for my warranty to expire!!
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