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Old 21 February 2006, 01:10 PM
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Paulo P
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Question ecu questions

I drive a MY93 Subaru Legacy single turbo. I have a TD05 turbo already fitted (which year wrx did that come from?) and now I'm getting a front mount intercooler. I had to stick with the Legacy ecu before because of the pump for the charge cooler but with that gone would I see any difference by "upgrading" the ecu?

My car currently has:

TD05 turbo
VOS chip which is an Australian chip specific to the Legacy. This is mapped for 95 fuel and 16.5 psi.
3" open neck de-cat downpipe to 2.5" (scoobysport)
2.5" de-cat center section (scoobysport)
hayward and scott backbox
k&n induction kit for a sti5

With this lot my car produced 265bhp on g-forces rollers on Saturday. I am wondering what is holding the car back, is it the uk ecu (remapped)? or the charge cooler. I am looking for new heads at some point too and will get sti ones.

What size injectors did the 260ps wrx use?

Thanks
Old 21 February 2006, 05:04 PM
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Paulo P
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bttt
Old 21 February 2006, 08:39 PM
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TD05's were fitted to all WRX's pre 97, execpt for the 5 door which had a TD04

You may see some benefit from shielding your induction from the engine bay heat

IMO, Sti heads probably aren't worth the extra expense over V3 or 4 WRX ones, as your Legacy bottom end will probably object to anything over 7200 rpm

AFAIK, all 260ps phase 1 models had grey 380cc injectors - the same as fitted to your car.

Not a bad dyno run for an ol' Leggy with a few breathing mods
Old 21 February 2006, 09:16 PM
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Paulo P
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Hi

Do you know if I'd benefit from using a wrx ecu? Are they any different? The guy at g-force read the graph wrong It was 230lbft That sounds more realistic

Shielding is on the way once I find a suitable sheet of Alloy
Old 21 February 2006, 09:44 PM
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jonny gav
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z4 is a nice match for the tdo5 but i am not sure how it will react with the cams in the leggy.

why not just fit a power fc, that will make the most of the turbo and mods you have already.

i know they are probably a little expensive but well worth every penny IMHO
Old 21 February 2006, 09:55 PM
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Paulo P
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Originally Posted by jonny gav
z4 is a nice match for the tdo5 but i am not sure how it will react with the cams in the leggy.

why not just fit a power fc, that will make the most of the turbo and mods you have already.

i know they are probably a little expensive but well worth every penny IMHO
I'm looking at going down that route eventually but probably not for a year. I'm looking for a cheap interim solution to get the most from the car

Do Legacy cams have a different profile?
Old 22 February 2006, 09:33 AM
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I have a 7k for sale.. boost target is 13.6psi..
Old 22 February 2006, 09:43 AM
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Originally Posted by Jolly Green Monster
I have a 7k for sale.. boost target is 13.6psi..
What is that? my boost target at the moment is 16.5 psi so how would that be better? I don't know much about these things
Old 22 February 2006, 09:50 AM
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lol.. sorry I read the original thread yesterday and then read the replies this morning and thought the 6k I have which is STi2 RA ecu would suit.. as it is a TD05 mapped ecu.. but sounds like your Vos chipped leg ecu is already mapped for the TD05?

Save your money for a PFC..

Simon
Old 22 February 2006, 10:42 AM
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My ecu has the VOS in and is mapped for a TD05. I was wondering if this could be bettered by a wrx ecu or something else 'til I get a real ecu. I have more work to do on the car before I get an apexi
Old 22 February 2006, 03:29 PM
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So has the vos chip been custom mapped for your car?
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