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Old 03-04-2008, 02:32 PM   #1
Worksport
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Default Need Help, Map for 2005 2.5

I tried the search function, no luck, hunted but no luck, i must be blind, if anyone can help me find a map for a 2.5 impreza please let me know, thanks.
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Old 03-04-2008, 05:21 PM   #2
LateApex31
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Your ECU already contains a great starting point! I think there is a thread on the ROM Raider forum about tuning the 2.5i cars that might have someone's ROM image posted in it.
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Old 03-05-2008, 12:46 PM   #3
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well the problem i have is my model is a cable operated throttle body and all the maps on rom raiders or others is for Electric Throttle Body only. the only thing i have found that could work is the Rallitek P6 ECU and accesories but thats alot of money, for my DD.

if someone has definitions for the Cable one i could work on a couple maps but i need the defintions first
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Old 03-05-2008, 02:02 PM   #4
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Old 03-06-2008, 12:43 AM   #5
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Quote:
Originally Posted by Worksport View Post
well the problem i have is my model is a cable operated throttle body and all the maps on rom raiders or others is for Electric Throttle Body only. the only thing i have found that could work is the Rallitek P6 ECU and accesories but thats alot of money, for my DD.

if someone has definitions for the Cable one i could work on a couple maps but i need the defintions first
OK, you have an 05, so your car is DBW. Go look.

If by some amazing chance, you go the first 05 off the assembly line and it's really an 04 but they put the wrong sticker on, then it's cable and you can't tune it.
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Old 03-30-2008, 02:06 AM   #6
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Quote:
Originally Posted by williaty View Post
OK, you have an 05, so your car is DBW. Go look.

If by some amazing chance, you go the first 05 off the assembly line and it's really an 04 but they put the wrong sticker on, then it's cable and you can't tune it.
my car is an 05 and IS CABLE THROTTLE
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Old 03-30-2008, 08:23 AM   #7
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Quote:
Originally Posted by Worksport View Post
my car is an 05 and IS CABLE THROTTLE
What is the 8th digit from the end of your VIN? Can you post a pic of the throttle body?
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Old 03-30-2008, 01:46 PM   #8
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Yes, no belief here until pics are seen.
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Old 04-01-2008, 02:57 AM   #9
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Quote:
Originally Posted by Tea cups View Post
What is the 8th digit from the end of your VIN? Can you post a pic of the throttle body?

I will post Pictures and some of my VIN, my model is a
2005 Impreza RS PRO VTD i dont know if that changes anything
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Old 08-21-2008, 08:40 PM   #10
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the 05 2.5rs is drive by wire
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Old 08-22-2008, 01:02 AM   #11
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Actually, this guy isn't the only one I've heard now claiming that he's got an 05 with cable throttle. However, no one has yet provided photo proof, so I'm still inclined to think that they just don't know what they're talking about. However, if it is true, it's got to be that Pro/VTD thing. I've never even heard of it. The internet has never even heard of it with the exception of a single CarFax report on one.
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Old 08-22-2008, 01:17 AM   #12
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Quote:
Variable Torque Distribution (VTD) : VTD All-Wheel Drive utilizes an electronically controlled variable transfer clutch in conjunction with a planetary-type center differential. Torque distribution is normally configured at a performance-oriented rear-wheel-biased 45/55-split front-to-rear. Utilizing Vehicle Dynamics Control (VDC) sensors, VTD All-Wheel Drive evaluates road conditions by continually estimating surface friction and adjusts torque distribution accordingly front-to-rear for optimum traction.
Sure sounds like DCCD by another name.

http://autos.yahoo.com/used-cars/sub...-cars270368350

I didn't think you could get VTD on a manual?

Last edited by MasterKwan; 08-22-2008 at 01:22 AM.
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Old 08-22-2008, 01:19 AM   #13
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Oh, the VTD I'd heard of, obviously. It's the "PRO VTD" option on a 2005 2.5RS that I haven't every heard of. There was the 2.5RS Sport that year, but nothing about this Pro/VTD bit.
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Old 08-22-2008, 11:37 AM   #14
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I have a map for a 4EAT 05. it is for 87 and is pretty damn good.
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Old 08-22-2008, 12:49 PM   #15
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Quote:
Originally Posted by Gr3en View Post
I have a map for a 4EAT 05. it is for 87 and is pretty damn good.
It doesn't matter if you have the same year, same model, same options, same everything. If you don't have identical ROM IDs, you can't share maps. It's also a bad idea in general to share maps as a map that runs well on your car may very well make his engine blow up.
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Old 08-22-2008, 03:54 PM   #16
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Hmm well, I'm using an 02 map on my 03. Guess I need to check ID's....
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Old 08-22-2008, 04:13 PM   #17
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Originally Posted by MasterKwan View Post
Hmm well, I'm using an 02 map on my 03. Guess I need to check ID's....
Sometimes you can get away with this if the hardware is similar enough. However, sometimes you can change between two seemingly exactly identical cars and it turns out that the require different data in the ROM to function properly. For instance maybe a sensor changed brands and requires a different calibration or something. Since Subaru doesn't publish _why_ they changed ROM ID, it's always safest to assume that they made some behind the scenes hardware change that will cause your engine to explode if you use the wrong ROM ID. It's probably not the case, but you never know if you'll end up with a problem, however minor or severe.

The "correct" way to share Car A's map to Car B is to pull Car B's ROM and copy/paste the individual values for all the maps from Car A's ROM into Car B's ROM so that any hard-coded parameters in Car B's ROM are still correct. However, that still doesn't mean that Car B is safe. Car A's tune might be aggressive enough to destroy Car B's motor.
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Old 08-22-2008, 04:28 PM   #18
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For the most part, if rom revision is from a vehicle that is the identical model, trim, year, market and transmission, then it is perfectly fine. However, the conservative approach would be to tune the ROM you pulled from your ECU. SOA does publish a brief description for each new revision - there's some posted at openecu.org (by Jon [in CT] I think).
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Old 08-22-2008, 04:30 PM   #19
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God damn, I'm not batting very well lately, am I?

Sigh... I wonder how much of this is because I did searches about most of the material on the enginuity forums before they departed and the information I found is a couple of years out of date...
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Old 08-22-2008, 08:15 PM   #20
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I went with the 02 ROM because some of the tables have more columns. I suppose, I could copy over my tables to the 03 ROM and flash that into place. Might be interesting to do it in order to see of the actual programming is different.
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Old 08-24-2008, 12:15 AM   #21
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i have been looking for some others that have been working on tuning work with the 05 2.5rs (MT). I pulled my cars map and have started to play around with it. We'll see how it goes

I am curious how people dealt with the ECU's target estimated AFR's past 4,000 rpm or if anyone bothered to mess with the 14.7 AFRs that fill more than half the map :O. Good idea for highway economy.

Also, was 05 the first year that the subaru 2.5rs/i came with VVT or whatever?

I wonder if the 4EAT cars kept a cable throttle? Although drive by wire seems like it would get along better with an automatic.
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Old 08-24-2008, 12:50 AM   #22
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1) 05 Did not have AVLS, that came in 06.

2) I have kept it at stoich below 4kRPM and below 0.9g/rev. It's a pretty good compromise between economy and responsiveness.
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