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View Full Version : FXT 4EAT Dyno Dynamics results - 258tq 239hp


AaronB
12-07-2004, 09:25 PM
I got my wife's Forester XT Automatic (4EAT) dyno tuned at DynoComp Monday. She has the following Mods:

Forced Air Technologies XT 3" Turboback (with Cat)
VF39 (Ceramic coated hot side)
STi Up-Pipe
Walbro Fuel Pump
Panel Filter
ECUTek Tuning by DynoComp

Stock it put down roughly 150tq and 150hp. Here are the 3 stock pulls and boost/AFR:
http://www.azscooby.com/members/christine/scan.jpg
http://www.azscooby.com/members/christine/scan1.jpg

After mods, but before ECUTek tuning it did 230tq (boost spike) and 196 hp. With no tuning/boost control it would spike to 18psi and quickly drop off to 7 psi. Here is that pull. Sorry no boost/AFR chart.
http://www.azscooby.com/members/christine/fxt_before_tuning.JPG

After tuning was done it did 258tq and 239hp running a solid 16 psi tapering down to 11 at redline. Here are the charts with the stock results for comparison:
http://www.azscooby.com/members/christine/fxt_final_vs_stock.JPG
http://www.azscooby.com/members/christine/fxt_final_boost_AFR.JPG

Notes:
All runs were on 91 octane :( The stock FXT top-mount is heat soaking bad at these levels, we would lose about 10-15 HP on the top end if we did consecutive pulls.

I am quite happy picking up about 110tq and 90 hp across virtually the entire RPM range :)

Next mods: intercooler, and tranny cooler ;)

Regards,

Aaron

fastrob691
12-07-2004, 10:02 PM
I had them tune my WRX as well. Excellent results, I didn't have the cash for ECUtek yet, just my UNICHIP. The one thing I notice on your stock run is the Closed Loop, open loop delay. My car was doing the same thing, 14.7 AFR for like 3-4 seconds. Good numbers, my mom wants a FXT.

b4437
12-08-2004, 02:03 AM
that's some awesome power. i can't wait for my xt. :D