SVX Network Forums Live Chat! SVX or Subaru Links Old Lockers Photo Post How-To Documents Message Archive SVX Shop Search |
IRC users: |
#1
|
||||
|
||||
ECU Tune idea for the next version chip...
I was driving my friend's WRX today and he has a Cobb Accessoprt which he reflashed his ECU and now has "Launch Control"... The basics are if the car is in nutral or if the speed is between 0 - 5mph then the revlimiter is restricted to 4500rpms... It makes for a VERY clean launch in the WRX... I tried it myself in the SVX lastnight and 4500rpms is almost too much... So I tried it again at about 3,800rpms and the SVX JUMPED off the line!... Would it be possible at all to encorperate a launcha control feature into the SVX ECU??
~ Chris
__________________
2020 Subaru Outback Touring - Wife's first Subaru 2005 Volvo V70R - 5-cylinder love! :Heart: ** SOLD **1998 Subaru Legacy 2.5GT Wagon - MOST RELIABLE car I've ever owned ** SOLD **2006Subaru WRXSTi (Former "Boxer4Racing.com / Continential Tire" STi) - Built EJ22t block / EJ207 JDM STi "big port heads" - 9,000rpm MONEY PIT!!! ** SOLD ** 1995 "Tree-Hugger Green" SVX L AWD(5 MT) --- "Gumby" 130K miles #399 in MY95, my original love... |
#2
|
||||
|
||||
Soooo??? What do we think??? Is it do able or is this just a fantasy?
~ Chris
__________________
2020 Subaru Outback Touring - Wife's first Subaru 2005 Volvo V70R - 5-cylinder love! :Heart: ** SOLD **1998 Subaru Legacy 2.5GT Wagon - MOST RELIABLE car I've ever owned ** SOLD **2006Subaru WRXSTi (Former "Boxer4Racing.com / Continential Tire" STi) - Built EJ22t block / EJ207 JDM STi "big port heads" - 9,000rpm MONEY PIT!!! ** SOLD ** 1995 "Tree-Hugger Green" SVX L AWD(5 MT) --- "Gumby" 130K miles #399 in MY95, my original love... |
#3
|
|||
|
|||
would be cool ...
__________________
Nightmare is the name of the car... |
#4
|
||||
|
||||
Quote:
Tom |
#5
|
||||
|
||||
Apologies for hijacking a question posed to LAN.
I think it is doable in theory. The SVX ECU already has a different rev limit for when it is in neutral to when it is in gear. The simplest and easiest method would be to lower that limit to 3800. Whether that would give the result you want or not is hard to say. I have some ideas on better ways it could be done, but the biggest problem is always how much code needs to refactored or relocated to make space for the addition. Patching machine code in place is a lot more tricky than building from source code.
__________________
Subaru ECU and TCU Website 1992 Alcyone SVX Version L 1992 Alcyone SVX Version L 1994 Alcyone SVX S40-II 2004 Subaru Legacy 2.5 SE Sports Tourer 1996 Subaru Legacy 2.2 GX Wagon 1988 Subaru Justy J12 SL-II |
#6
|
||||
|
||||
well the ECU has two modes(P&N then there is the in-gear map). If you wired your trans in-gear switch to activate the N&P mode, it would work. BUT you couldn't shut it off w/ speed without further investigation. But this also requires him to write a chip specific to a 5mt. Being such a selective market it will prob never happen for the same reasons there is no OBDII ECUtune...
Tom |
#7
|
||||
|
||||
Good points Tom (and everyone else)... I guess I'll just have to train my "launch control system" (left leg) to respond the same all the time... No worries
~ Chris
__________________
2020 Subaru Outback Touring - Wife's first Subaru 2005 Volvo V70R - 5-cylinder love! :Heart: ** SOLD **1998 Subaru Legacy 2.5GT Wagon - MOST RELIABLE car I've ever owned ** SOLD **2006Subaru WRXSTi (Former "Boxer4Racing.com / Continential Tire" STi) - Built EJ22t block / EJ207 JDM STi "big port heads" - 9,000rpm MONEY PIT!!! ** SOLD ** 1995 "Tree-Hugger Green" SVX L AWD(5 MT) --- "Gumby" 130K miles #399 in MY95, my original love... |
|
|