Here is an 09 WRX on E85 we finished up yesterday. The car has the following mods:

Catless TBE
TurboXS FMIC and Intake
EQ Tuning Custom Blow-Through MAF piping
Greddy RZ BOV
Walbro Fuel Pump
Hallman MBC
DW1000cc Injectors
EQ Tuning Custom Tune

We made the blow-through piping and finished up the tune on this car yesterday. So far this is the quickest and best running 09 WRX I've done. I was asked to keep the torque relatively "mild" due to the 5 speed, so we kept peak boost to 22psi.

I started the tune on our Dynocom chassis dyno and touched it up on the road.

Here is the chart from the dyno tune:



And here is the road dyno chart:



As you can see, the car spooled a bit faster on the road which resulted in a bit more torque and an earlier torque peak. It was also able to carry more power out to redline due to the increased airflow at high speed on the road as compared to the dyno environment. There were no changes in timing between the two pulls, just a couple very small corrections in a/f.

This comparison also clearly shows how I calibrated our dyno to read very closely to my road dyno software. Considering the difference in conditions between the road and dyno, the results are VERY close. FYI, I am running a .85 correction factor on the chassis dyno to achieve this calibration.

Just for fun, here is the same chassis dyno chart without the .85 correction:



400whp VF52 anyone?


*** Standard Dyno Chart Disclaimer ***

This software reads low and should be compared to the lower reading mustang dynos. Here are some proven numbers and trap speeds for reference:

Stock WRX - 155-165whp
Stock STI - 215-225whp

265-275whp - 107-108mph traps
300-310whp - 112-113mph traps
325-335whp - 115-116mph traps
380-390whp - 122-123mph traps

*** End Disclaimer ***


Thanks
-- Ed