Project RS

[ScottyB]

so i've started to delve into the foray of opensource tuning. i initially became interested about a year ago when the car started to become supported but i held off for a long time since the subject, frankly, intimidated the hell out of me. i've done alot of reading and i'll be moving very slowly.

the goals of tuning the car, in order of importance, are:

- remove the closed loop to open loop delay
- remap throttle to offer easier tip-in and more linearity (poking around in traffic at <1500 rpm in 1st is pogo/drivelash city because the throttle is real touchy at low rpms....very annoying)
- richen up the stock open loop map
- rescale MAF for closed loop operation
- rescale MAF for open loop operation*
- tune for safety on 87*
- tune for power on 93*

* can't do until i have a wideband

i most likely won't make it past the 3rd stage but i'd really like to see an 87 tune. people who have tuned the cars well on 87 are picking up over 10awhp so there is a whole lot of room for improvement....on 93 these cars could probably put down twice that increase. so far its been great to study this stuff as it opens up a lot of understanding about how the engine works, which is really cool to me.

Flintster sent me a cable to connect from laptop to car and i have the necessary tuning programs. unfortunately i found out my particular ECU is not supported yet - i thought it was as they had quite a few definitions for the N/A cars. so...i'll be waiting for the next group of definitions to be released.

in the meantime, i found a way to seal my WRX intake duct up to the rest of my intake (it used to just funnel air into the general area of the stock intake since the duct is bigger than the stock intake):

the seal came from here:


the groove accomdates the duct and supports it while being thick enough to bridge the gap between the duct and the stock intake






i happened to have some leftover from a side project so some measuring + hot glue = lower IAT's...and since putting my headers on the underhood temps have definitely felt higher when the car isn't moving as much (like staging at an autocross). so hopefully this will help in all areas - to my knowledge nobody who has the duct has sealed it, but some have still logged 10-20 degree decrease in IAT's over stock when the car is moving.