Tuning a 2.5 RS?

Imprezafan1 · 03-03-2003, 01:23 PM

Is it possible to dyno tune a 2.5 NA with a stock ECU? I heard Vishnu does it in the bay area. I was just wondering if it is a possible and inexpensive performance process. I have almost all the bolt ons on my car, but just heard that my 2001 RS can be tuned to perform better.

Vince

* Registered users of the site do not see these ads.

Kostamojen · 03-03-2003, 02:34 PM

Do you mean the ECUtek reflash that Vishnu does? For WRX's, they get about 30hp with it but it costs $700 or something like that... As for an RS, I dont know if it will do much if anything, maybe 5-10hp? Email vishnu and ask them if they can do anything with the RS, as I am kind of curious as well about it...

joefocker20 · 03-03-2003, 10:50 PM

Look into Cobbs technology, its cheaper, and you can tune it yourself if you get a wideband 02, EGT, and A/F gauge.

Kostamojen · 03-04-2003, 12:17 AM

Quote:

Originally posted by joefocker20
Look into Cobbs technology, its cheaper, and you can tune it yourself if you get a wideband 02, EGT, and A/F gauge.

I thought tuning with that system was only at Cobb's in-house dyno?

joefocker20 · 03-04-2003, 12:40 AM

Nope, I read a post that AccessFlash will be a product youcan buy yourself or have tuned in house. Youcan only reflash it so many times before the ECU runs out of memory. In which case you have to send your old one to them to make sure you're licensed for the use of their software to reflash it and purchase a new ECU.

EJ25 · 03-04-2003, 04:49 PM

check out Yoshio at the toronto subaru club www.toronto-subaru-club.com, he does 2.5 ecu re-programming and it works!

ychan · 03-05-2003, 12:29 AM

what type of gains re expected?
-y

Kostamojen · 03-05-2003, 01:31 AM

Quote:

Originally posted by EJ25
check out Yoshio at the toronto subaru club www.toronto-subaru-club.com, he does 2.5 ecu re-programming and it works!

Could you perhaps be more specific as to which post? I cant find anything under that user name.

altibaby · 03-05-2003, 12:38 PM

Quote:

what type of gains re expected?

It's depands on what mods do you have...
More info Here
You can search more info in the toronto subaru club.
Benjamin

Pocon · 03-06-2003, 04:22 PM

Japanese Automotive "street" tuned my RS back in January. I noticed an increase in low and mid torque. The pull is smooth and best of all, I only paid half of the regular price.

03-03-2003, 01:23 PM	#1
Imprezafan1 Scooby Newbie Member#: 4039 Join Date: Feb 2001 Location: San Francisco, California Vehicle: 2001 2.5 RS Black	Tuning a 2.5 RS? Is it possible to dyno tune a 2.5 NA with a stock ECU? I heard Vishnu does it in the bay area. I was just wondering if it is a possible and inexpensive performance process. I have almost all the bolt ons on my car, but just heard that my 2001 RS can be tuned to perform better. Vince * Registered users of the site do not see these ads.

03-06-2003, 04:22 PM	#10
Pocon Scooby Newbie Member#: 17479 Join Date: Apr 2002 Location: Toronto, On - Canada Vehicle: 1999 Impreza WRX Silverthorn Metallic	Yoshio Rocks Japanese Automotive "street" tuned my RS back in January. I noticed an increase in low and mid torque. The pull is smooth and best of all, I only paid half of the regular price.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Cobb Tuning Lightweight crank pulley for 99 2.5 RS	Assassin4457	Normally Aspirated Powertrain	9	11-16-2005 12:35 AM
4 Sale (Sacramento) - Tune up parts for 01 2.5 RS.	jotarou1	Bay Area Impreza Club Forum -- BAIC	0	06-05-2003 06:14 PM
Tuning a 2.5 RS	AntonioS	Normally Aspirated Powertrain	6	04-08-2003 12:09 PM
99 2.5 RS w/ S-AFC and ITC..help on proper tuning	Murray	Engine Management & Tuning	0	11-27-2002 09:32 AM
Tuning my Bro's 99 2.5 RS, Need help from Expert	psaeko	Newbies & FAQs	2	06-03-2001 06:08 PM

03-03-2003, 02:34 PM	#2
Kostamojen Scooby Guru Member#: 2272 Join Date: Sep 2000 Chapter/Region: BAIC Location: haha XD Vehicle: 95 L AWD LIFTED!!! 1970 Subaru FF-1 Coupe	Do you mean the ECUtek reflash that Vishnu does? For WRX's, they get about 30hp with it but it costs $700 or something like that... As for an RS, I dont know if it will do much if anything, maybe 5-10hp? Email vishnu and ask them if they can do anything with the RS, as I am kind of curious as well about it...

03-03-2003, 10:50 PM	#3
joefocker20 Scooby Specialist Member#: 13745 Join Date: Dec 2001 Chapter/Region: RMIC Location: Colorado Springs, CO Vehicle: 2004 STI Silver	Look into Cobbs technology, its cheaper, and you can tune it yourself if you get a wideband 02, EGT, and A/F gauge.

03-04-2003, 12:40 AM	#5
joefocker20 Scooby Specialist Member#: 13745 Join Date: Dec 2001 Chapter/Region: RMIC Location: Colorado Springs, CO Vehicle: 2004 STI Silver	Nope, I read a post that AccessFlash will be a product youcan buy yourself or have tuned in house. Youcan only reflash it so many times before the ECU runs out of memory. In which case you have to send your old one to them to make sure you're licensed for the use of their software to reflash it and purchase a new ECU.

03-04-2003, 04:49 PM	#6
EJ25 Scooby Newbie Member#: 10768 Join Date: Oct 2001 Location: Canada... bent and broken 2000RS Rally	check out Yoshio at the toronto subaru club www.toronto-subaru-club.com, he does 2.5 ecu re-programming and it works!

03-05-2003, 12:29 AM	#7
ychan Scooby Newbie Member#: 9418 Join Date: Aug 2001 Location: nyc Vehicle: 2002 2.5rs aspen white	what type of gains re expected? -y