Stage 1 Gas Milage? Economy Mode??

STi05' · 09-02-2005, 10:55 AM

Hey guys, I am somewhat un-educated on the AP stuff and was wondering what the gas milage was like. Given these days you have to chop off an arm for a few gallons of gas, I was wondering what the economy mode on it was like. Also, has anyone gotten away with reflashing back to stock before major warrenty work?
Thanks for the help in advance.

drfrink24 · 09-02-2005, 11:26 AM

There is no economy map for the STI. Its apparently in the works though.

STi05' · 09-02-2005, 11:29 AM

Ah, ok thanks for the clarification.

ucbsti · 09-07-2005, 05:38 PM

I called cobb today, they should be done with the STi economy map by the end of the month

WolfPlayer · 09-08-2005, 05:05 AM

Since this is a StreetTUNER forum ... I say make your own economy map I took a look at Cobb's STI economy map (got a sneak peak - THANKS TO YOU KNOW WHO!). From what I saw, any of us could put one together like this. Turn your target boost to zero. Turn all your WGDC maps to zero. Then add a degree or two of ignition advance. That's it. I took this a step further with my current map. My WGDC maps are set to zero across the board except for 80% throttle. Thus, when I am WOT it runs like a raped ape. But, when I am part throttle the ECU is doing nothing to help raise boost levels. Economy with Stage II power - lol. Besides changing part throttle WGDC values, I also went into Dynamic Advance A/B and added between 3-4 degrees of ignition advance in the low-mid RPMs at very light load (cruising loads/RPMs). I also started upshifting as much as possible. Yea, 6th gear at 40mph. Basically, any gear that I use to use ... I now am using at least one gear higher. Long story short ... I do all city driving. I was getting like ~16mpg. This recent fill up netted me 18.0 mpg. With a 15 gallon tank that makes an extra 30 miles to the tankful. That's like $5.50 with current gas prices. For me, that means about $17/month. Is $17/month worth it? I don't know. But it does mean I get to go out to lunch like 3 times that I wasn't able to do before. Yes, I know it is rather silly to be worrying about gas mileage on a car like the STI. It's a performance car. However, this was more about me experimenting with the programming than anything else. The extra 3 lunches a month ... well ... that was like a side bonus. Keep in mind that it wasn't the programming that netted me all of increase because I am now upshifting a lot more. The real test would be highway driving ... but I don't really do much of it. t

jays05 · 09-08-2005, 07:23 AM

I'd like to have a lean-burn cruise, but ST can't target AFR's leaner than 14.7

***wdb*** · 09-08-2005, 08:50 AM

I've been collecting data on STi and fuel consumption. See my sig for the thread. There is also a thread in the FAQ section.

Reports I have so far for Cobb Stage 1 fuel mileage are that it has no noticeable effect plus or minus.

WolfPlayer · 09-08-2005, 09:40 AM

Quote:

Originally Posted by jaygoesfast

I'd like to have a lean-burn cruise, but ST can't target AFR's leaner than 14.7

I'm with you on this one Jay!!!!!

There is a thread on NABISCO about ECUTek now having this functionality. So, if ECUTek has it ... then the stock ECU has it .... which means that StreetTUNER should definitely be able to have it!!!!! Felp!

t

Christian. · 09-20-2005, 04:36 PM

christian@cobbtuning.com about an economy map for their STi will get something to look at...and test.

09-02-2005, 10:55 AM	#1
STi05' The Next Petter Solberg Car: 05' STi CGM/Silver Fav Mod: Recaro Sports Location: Mercer Island, Wa Posts: 976 Join Date: Oct 2004 Trader Rating: (1)	Stage 1 Gas Milage? Economy Mode?? Hey guys, I am somewhat un-educated on the AP stuff and was wondering what the gas milage was like. Given these days you have to chop off an arm for a few gallons of gas, I was wondering what the economy mode on it was like. Also, has anyone gotten away with reflashing back to stock before major warrenty work? Thanks for the help in advance. This ad is not endorsed by this member. Please register or login to hide this ad.

09-08-2005, 05:05 AM	#5
WolfPlayer Moderator & ECU Tech Car: 05 CGM STI Fav Mod: mo boostaz Location: Fredneck, MD Posts: 3,703 Join Date: Jun 2004 Trader Rating: (6)	Since this is a StreetTUNER forum ... I say make your own economy map I took a look at Cobb's STI economy map (got a sneak peak - THANKS TO YOU KNOW WHO!). From what I saw, any of us could put one together like this. Turn your target boost to zero. Turn all your WGDC maps to zero. Then add a degree or two of ignition advance. That's it. I took this a step further with my current map. My WGDC maps are set to zero across the board except for 80% throttle. Thus, when I am WOT it runs like a raped ape. But, when I am part throttle the ECU is doing nothing to help raise boost levels. Economy with Stage II power - lol. Besides changing part throttle WGDC values, I also went into Dynamic Advance A/B and added between 3-4 degrees of ignition advance in the low-mid RPMs at very light load (cruising loads/RPMs). I also started upshifting as much as possible. Yea, 6th gear at 40mph. Basically, any gear that I use to use ... I now am using at least one gear higher. Long story short ... I do all city driving. I was getting like ~16mpg. This recent fill up netted me 18.0 mpg. With a 15 gallon tank that makes an extra 30 miles to the tankful. That's like $5.50 with current gas prices. For me, that means about $17/month. Is $17/month worth it? I don't know. But it does mean I get to go out to lunch like 3 times that I wasn't able to do before. Yes, I know it is rather silly to be worrying about gas mileage on a car like the STI. It's a performance car. However, this was more about me experimenting with the programming than anything else. The extra 3 lunches a month ... well ... that was like a side bonus. Keep in mind that it wasn't the programming that netted me all of increase because I am now upshifting a lot more. The real test would be highway driving ... but I don't really do much of it. t Last edited by WolfPlayer : 09-08-2005 at 05:19 AM.

09-20-2005, 04:36 PM	#9
Christian. STI Driver Car: 01 Subaru WRX STi Sp Fav Mod: Coming Soon Posts: 262 Join Date: Aug 2005 Trader Rating: (0)	The first to e-mail me @ christian@cobbtuning.com about an economy map for their STi will get something to look at...and test. This ad is not endorsed by this member. Please register or login to hide this ad.

09-02-2005, 11:26 AM	#2
drfrink24 Junior STI Driver Car: JBP 04 WRX STi Posts: 197 Join Date: May 2004 Trader Rating: (0)	There is no economy map for the STI. Its apparently in the works though.

09-02-2005, 11:29 AM	#3
STi05' The Next Petter Solberg Car: 05' STi CGM/Silver Fav Mod: Recaro Sports Location: Mercer Island, Wa Posts: 976 Join Date: Oct 2004 Trader Rating: (1)	Ah, ok thanks for the clarification.

09-07-2005, 05:38 PM	#4
ucbsti Senior STI Driver Posts: 339 Join Date: May 2005 Trader Rating: (0)	I called cobb today, they should be done with the STi economy map by the end of the month

09-08-2005, 07:23 AM	#6
jays05 Spec C Club Car: Blue 05 STI Fav Mod: Synapse FMIC Location: Upstate NY Posts: 1,701 Join Date: Nov 2004 Trader Rating: (0)	I'd like to have a lean-burn cruise, but ST can't target AFR's leaner than 14.7

09-08-2005, 08:50 AM	#7
*wdb* dances with roads Car: 2005 CGM STi Posts: 5,066 Join Date: Apr 2005 Trader Rating: (8)	I've been collecting data on STi and fuel consumption. See my sig for the thread. There is also a thread in the FAQ section. Reports I have so far for Cobb Stage 1 fuel mileage are that it has no noticeable effect plus or minus.