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We recently just got our hands on a 2009 B8 Audi S5 6-speed. Totally in love with the looks and the sound of that incredible V8. My plans with this car is to go absolutely nuts with modifications. The initial goal was to have an all-wheel drive,6-speed, V8 car that was not only nice to look at and unique, but also fun to drive, which the S5 and RS 5 seemed to check every box with flying colors. I would like to get advice from seasoned owners such as yourselves before I dive headfirst into the money pit. (I understand that I may be entering 6 figure ranges)
The goal is to either Rebuild the current S5 engine + trans + SR66 Widebody (and the accessory mods that come with both; intake, suspension, etc.)
BUT
We have absolutely fallen in love with the sound of the B8 RS 5 V8. We were having thoughts about making what should have been the perfect RS 5, (Widebody, 6-speed, and tuned/modded V8 (don’t worry, +exhaust)). I wanted to know if this would even be possible to manual swap the RS 5 with a donor trans from a S5. I read somewhere that enthusiasts speculate that the bellhousing matches, but I wanted to get an internal set of opinions.
The plan is to self-perform the suspension, bodywork (mostly), and the exhaust and I wanted to get advice on to run now, or if there is a shop remotely close to Charlotte, North Carolina, that would even consider taking on majority of the engine/trans work for this project. Please let me know of advice, because the more information that I can gather before making what will likely be the worst financial decision of our lives, the better.
The 6spd will bolt right up to the RS5 CFSA motor. The software will be your only issue there. Just need the RS5 motor, and complete wiring harness and ECU. From the S5 you need the shifter, clutch, flywheel, and transmission and mounts, plus the hydraulics for the clutch. Will need to swap pedal boxes in the car to add the clutch pedal. The RS5 already has wider flared fenders, larger brakes, and would have the engine so you would only have to do the transmission. Plus the RS5 is a B8.5 whereas your S5 is a B8 so you would also get a little bit of technology upgrade into the next generational improvement in the MMI.
Audi Recreates Crazy-Looking Speed Record Breaker From 1935
Slideshow: Audi has recreated one of the wildest machines of the pre-war speed-record era, reviving a streamlined V16 racer that originally exceeded 200 mph in 1935.
Looking to Modify an S5/RS 5, crazy style.
