ECU Question
09 August 2013, 01:27 PM
#33
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Yes, the MAP sensor detects the manifold pressure and feeds the info back to the ECU which will switch off the fuel to stop overboosting. Doesn't matter what pump you have fitted.
09 August 2013, 01:29 PM
#34
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The ECU will only make minor timing changes to try to prevent knock/detonation but won't change the air/fuel mixture. That is only achievable through careful remapping.
09 August 2013, 01:33 PM
#35
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Ok that's great lads so for a min just leave as it is thinks best all round option is a ecu and a remap but still worried for min that after mods it's only been rollers and not touch in any other way surely to make sure it's safe get another roller and ask them to fine tune if that's what they do whilst I'm saving for little while is that possible or just leave as is tuner said it was fine love the site
09 August 2013, 01:42 PM
#37
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There's no point going back to the rolling road, they can't tune anything for now. I have a few mods on my car too like Blitz Nur spec full system, decat downpipe, FMIC and so on but it looks like I have the standard ECU as well. I'm just staying off the throttle until I get a new ECU fitted.
Keep your car at standard boost levels and don't boost it when your driving until you get a new ECU!
Keep your car at standard boost levels and don't boost it when your driving until you get a new ECU!
09 August 2013, 01:59 PM
#39
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If you've had engine mods and the ecu hasn't been tweeked to run the mods I'd be staying off boost incase you do any damage to the engine eg if you wack your boost and your air flow meter can only read a certain volume of passing air, so say you double you boost your air flow meter can only read 3quarters of the passing air so puts that amount of fuel through but then you've got say 30% extra air goin through unread by the afm and ecu, then you'd be under fueling and doing damage hope this makes sense I'm on my phone (all info is what I've read through this site)
09 August 2013, 04:20 PM
#41
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Thanks guys again great help so don't bring on the boost at standard boost as I don't have a boost controller anyway only the tuner said its fine as it is to boost aswell for the minute as he said boost controller would be the next step with the standard ecu and a rolling rd it will be fine so I don't really understand I shouldn't get a boost controller and I can't boost it as it is with the mods I have which are fmic walbro pump cone air filter full de cat exhaust tdo5 standard turbo so do I leave it on the drive till I find a ecu. Lol
09 August 2013, 04:35 PM
#42
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im not a expert mate but i wouldnt risk it , is the mapper youve talked to a subaru man ie specalist if not i wouldnt listen to them im sure one of the clued up mapper guys on here will give a definative awnser as there are a few, i got told not to fit my front mount without the map tweek as i was going to fit the fmic run about in it still then fit the turbo and remap then but im waiting till i can afford to do it all in one go,but other people have said i can put the bits on to drive to the mapper just take it really easy and dont boost up
09 August 2013, 04:53 PM
#43
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Ok mate yeah don't want to blow it not yet anyway lol many thanks to all the helpers was very useful what is a decent ecu to use again all options open thanks again fellas
09 August 2013, 06:30 PM
#45
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There are only a couple of options I think:
ESL Daughter board, fitted to your own ECU.
Apexi standalone ECU.
Personally I'll be going for the ESL board.
ESL Daughter board, fitted to your own ECU.
Apexi standalone ECU.
Personally I'll be going for the ESL board.
09 August 2013, 10:50 PM
#47
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Would love to but unfortunately can't afford it right now but if any one is selling one in two weeks time for same money ill have one cheers guys looks like its gonna be collecting tree sap for a while
10 August 2013, 11:00 AM
#48
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Hi all I can get my hands on a cheap sti on a m plate will the ecu you be finer tuned for my vehicle it is it just a no no keeping all options open also what is a daughter board capable of launch control lol
10 August 2013, 11:13 AM
#49
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Nah, you'd 100% be better off with the ESL board. As far as I know it can do anti lag and launch control.
http://www.enduringsolutions.com/
http://www.enduringsolutions.com/
10 August 2013, 11:28 AM
#50
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all comes down to how much you wana spend on a ecu setup spend alot youll have all the goodies , ive read that the lacunch controll is pretty useless (unless building a drag/sprint car)your best bet is to ring a specialist subaru man with a good rep on here and disscuss your options (jolly green monster, bob rawl ,slowboy racing to name a few)im not saying any of the info me and pie have said is wrong 
theyl be able to say what is the best setup for you
theyl be able to say what is the best setup for you
10 August 2013, 05:08 PM
#52
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yea you know to much stress on the gbox and clutch,if i do a hard launch il have it in 1st biting revving up holding it on the handbrake ,then bang off you go lol , not the best method but puts less stress on it as it already loaded other than a quick snap of power shock all at once, takes a few goes but when you hit it wright you fly off the line
11 August 2013, 01:14 AM
#53
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yeah sound advice guys i love the sound of launch but would definausttly put an end to something pretty quick sounds like i will need an ecu or daughterboard sometime soon thanks for all the advice though its appreciated looking for a quick fix at the mo though tying to get it up castle combe 30 august any advice would be great
11 August 2013, 02:57 PM
#54
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I honestly don't think there is a quick fix, if there was, I'd have it too! Just keep the boost at normal levels I guess. I've given mine a few short blasts here and there at full throttle an it's been fine but I wouldn't do it for more than 20 seconds really. Even that is probably pushing my luck! I've emailed ESL for some info and hope to have my board at the end of the month. Also need to get EGT and AFR gauges to set everything up.
