Just bought a S4.... mod recommendation
02-08-2004, 11:12 AM
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Just bought a S4.... mod recommendation
A couple of weeks ago I bought a 2001 s4 tip that was intended to be my daily driver with no mods but already I feel the need to tap into this cars potenial to make power. I have decided to start with a chip (GIAC), filter, and diverter valves. Can anyone recommend a good set of DV valves? Do after market valves make the pssst noise? If so is there a good set that doesn't? Also, does anyone have dyno sheets from a chipped tip? I have read that most chips for the tip produce a limited amount of torque due to the tranny. Is this true, and does the tip tranny limit the potenial torque you can saftly produce?
02-08-2004, 11:49 AM
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unofficial tq lim is 340 for tip tran, officially it is lower but 340 is the #, keep stock filter,..
also, get the Tip Chip and upgraded to a new throttle body boot (tbb)
summary
X Chip
Tip Chip
710Ns
Samco TBB
"no filter"
nice upgrade package with 710Ns and Samco TBB for added protection of higher boost
summary
X Chip
Tip Chip
710Ns
Samco TBB
"no filter"
nice upgrade package with 710Ns and Samco TBB for added protection of higher boost
02-08-2004, 12:03 PM
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stay away from blow off style valves on any 2.7 twin engine - S4 or A6 2.7T
the computer doesnt understand when you vent the charge pressure air out into the atmosphere, it expects it to be re-circulated to the back of the line. Will result in overboost scenarios = over heat turbos = bad ....
