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06-20-2012, 12:31 PM | #1 |
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03 wrx v7,v8 swap question
hey guys finally gettin around to fixing my 03 bugeye. i was planning to pick up a jdm v7 or v8 sti motor an ecu. my main concern is being that i live in hawaii we aint got much tunning options around here. will i be able to run on pump gas. i only have access to 92octane. should i run the stock ecu or the jdm one.. thanks for the help guys. the quicker i get this answered the quicker i pick up the phone an make an order haha
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06-21-2012, 01:48 PM | #2 |
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would the stock ecu work ok until i can find a way to tune the v8 ecu
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06-21-2012, 02:15 PM | #3 |
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You should be able to use the stock ECU and just re-tune it for the v8 STi motor
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06-21-2012, 05:23 PM | #4 |
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06-21-2012, 05:56 PM | #5 | |
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Vehicle:2002 wrx 6speed son! WRB |
Quote:
you can run your ver8 motor on a stock ecu but you will have no avcs. Get the iag wire kit and a version 8 motor plus ecu and your golden. dealership wont know what to do unless one of the techs know how to or is into tunning |
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06-21-2012, 07:23 PM | #6 |
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will the jdm ecu run ok on 92 octane. thanks for the help man
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06-21-2012, 03:45 PM | #7 |
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You wont be using AVCS if you use your ecu. You also wont be using AVCS if you just plug you jdm ecu in. You need to wire in the AVCS OR buy the IAPerformance plug n play kit. Hit up ClarkTurner for an Etune.
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06-21-2012, 05:20 PM | #8 |
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That sounds like a plan. When you say Etune would that be through open source tuning I was leaning toward buying the cable n downloading the software. Am I on track now ?
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06-21-2012, 08:45 PM | #9 |
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JDM motors see around 98+ octane equivilent to the US gas.
You must tune the car via "electronic" tune or physically before pushing the car at all. You can cause catastrphic damage. I suggest doing at least a good week or two, if not more research on jdm motors and tuning before doing what you're planning. |
06-23-2012, 02:41 PM | #10 |
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thanks guys so i ordered my v8 sti complete twinscroll, ecu, every thing but the trans. going to order the avcs iaperformance wiring kit today. going to also order a tatrix cable an download the riight software thats what i need for an etune right at least to get goin
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06-27-2012, 07:00 PM | #11 |
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^ did you have good luck reaching someone over @ iaperformance? I've been calling them but no answer. BTW can anyone source out the ECU by itself ? I need a version 7 jdm ECU!
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06-27-2012, 10:38 PM | #12 | |
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Quote:
Call any place that sells swaps on the vendors thread they should have extra ECUs, a V8 ecu would also work for you. I have a well sorted rom for running a V7-9 motor on 91 oct here in AZ, I have been working on it for a few months and it is DD stable. You are welcome to give it a go if you can flash it yourself |
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06-28-2012, 08:20 AM | #13 |
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Contact Jacob @ coolblue05 here in NASIOC
JDM Importer out of the Michigan I think. Easy to deal with |
06-28-2012, 01:18 PM | #14 | |
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Quote:
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06-28-2012, 08:40 PM | #15 | |
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07-16-2012, 04:23 PM | #16 |
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so heres an update on my swap. i received my sti v8 with twinscroll setup an WOW looks so nice haha. also my avcs wiring kit should be here today along with my tactrix cable. got the stock motor out already..sense this is goin in a 03 wrx is it a must to upgrade my fuel pump? or will it be ok
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07-17-2012, 07:53 AM | #17 | |
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Quote:
Is this just a swap with no intentions to upgrade? What are you using for turbo, injectors, etc? If you are going greater than 03 stock turbo, etc., then you will need supporting upgrades, including fuel pump |
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07-17-2012, 10:46 AM | #18 | |
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Vehicle:2004 Spec-C Type RA What MAF? -Speed Density! |
Quote:
Yes get a fuel pump, the stock injectors on the swap are the pink 560s. |
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07-17-2012, 12:41 PM | #19 |
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ok thanks you guys. yeah im gonna run the twin scroll setup so i guess ill need a fuel pump. heres another question the previous owner of my car long time ago i heard did a bunch of upgrades to this car then put it back near stock before he sold it except for the uppipe n intake, bov ect minor bolt on's. sense he had an aftermarket turbo is there a way to check if he installed a fuel pump, without taking out my back seat just to check..thanks for all the help once again
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07-17-2012, 01:10 PM | #20 |
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No, you can't just guess.
Make sure what you have for injectors Make sure they will support the fuel flow to whichever turbo you use Make sure you have the correct fuel pump. How do you expect to tune this if you have little to no tuning options in your area? Check your local forum for tuners. You could also call some well known tuners on the West Coast and see if they can recommend someone in your area |
07-17-2012, 01:35 PM | #21 | |
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i wasnt guessing haha. im running a V8 sti stock twin scroll.stock everything motor wise. i was saying the old owner of my car might of installed a fuel pump is there a way to tell?
as far as tuning im goin the open source route an get an e-tune from Phatbotti tuning Quote:
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07-18-2012, 03:10 AM | #22 |
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fuel pump wise the only way to tell is by pulling the pump itself out of the tank and reading the numbers on the side of the pump.
if you dont have a pump get one asap! and make sure its not a take off they die really fast. |
07-18-2012, 12:58 PM | #23 |
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thanks man. should be easy to tell the difference between the stock wrx one an aftermarket. in a 2003 wrx can i get to it from the trunk or do i gotta take out the back seat
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07-28-2012, 01:25 AM | #24 |
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Motor is in I just have to get a few things plugs belts ect an it's finished I will get pics ASAP
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07-28-2012, 12:54 PM | #25 |
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Are u going to wire the avcs cable? Let me know how it all goes, I'm tryin to do a swap on my 03 wagon. Going to same ej207 v8 twinscroll setup.
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