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Old 08-21-2011, 05:11 PM   #1
ScoobieBlue18
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1997 ej18t Impreza
Not WRB

Default StandAlone EJ18t project

Alright here we go. ive been planing on making my car faster for a long time. and since im going to college soon, nows the time. after doing a lot of research i decided to keep the ej18 block and boost it. since ive never been much of a fan of piggy back systems i decided to go with AEM ems4.

Engine:
ej18 block
ej22 heads ported and polished (5 angle ground valves)
ej18 cams and rollor rockers
ej22 intake manifold/ throttle body
stock tdo4
04 sti cross member
wrx headers, uppipe and down pipe
wrx tmic
04 wrx crank sprocket
wrx expansion tank
wrx water pump
braided stainless oil lines
manual boost controler

Electrical:
AEM ems4 ver 2.8 (Now Running 034efi Stage Ic standalone)
AEM wideband o2 sensor with guage
AEM intake Air Temp sensor
GM 3 bar MAP sensor
ebay boost guage
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Last edited by ScoobieBlue18; 12-28-2011 at 12:46 PM.
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Old 08-21-2011, 05:25 PM   #2
ScoobieBlue18
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Not WRB

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Old 08-22-2011, 11:58 AM   #3
OddBallRacing
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So you cut the harness plug off your stock harness and are going to splice in the AEM?

+1 for tuneage in the garage!
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Old 08-24-2011, 09:44 AM   #4
ScoobieBlue18
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Not WRB

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All the "engine" wiring is done and 98% of mechanical stuff too. im working on geting a map for the ems4 tweaked and loaded. hopefullly a few turn overs and maybe a start today!

[IMG][/IMG]
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Old 08-24-2011, 10:06 AM   #5
xilles
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I dig this
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Old 08-24-2011, 02:37 PM   #6
Dominator
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Nice! I love the ej18t builds. Subscribed for updates.
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Old 08-24-2011, 08:58 PM   #7
ScoobieBlue18
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okay... i have a bad update. it started out good but turned bad. we got everything mechanical and electrical done with the car today around maybe 12:30 or so. we promptly plugged in the computer and started loading and tweaking maps. we had an issue with the ignitor pack and had to investigate. after we sorted things out we had bigger problems. since 1pm today we have been trying to connect the EMS4 to a computer with no luck at all. it keeps giving us the response "unknown device detected" with no further options. We have tried 6 laptops and one desk top with no luck.

if youve heard of these problems before or can give any advice please do so. thanks.
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Old 08-24-2011, 11:21 PM   #8
mxpunk
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color looks familiar

try contacting AEM?
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Old 08-25-2011, 04:51 AM   #9
Dominator
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To me that sounds like a computer hardware driver issue. Did you load AEM software and restart the laptop?
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Old 08-26-2011, 01:45 AM   #10
ScoobieBlue18
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Not WRB

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alright. so after some reading up last night i found out that our conection problem was the cord from AEM which sounded strange to me. but after buying a new $30 USB cord from best buy the EMS4 connected flawlessly all day long.

unfortunately now the problem is just as bad, we cant figure out how to sync the crank position sensor with the calibration map. my map has the relucor ring teeth programed in properly but the EMS wont register the teeth even while cranking. which means no spark or fuel...or a running car. on the other hand its picking up the cam position marks perfectly, which is strange.

on a lighter note. today i make my gauge holder that replaces my cup holder area and i also received my Cobra head intake, and STi expansion tank.
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Old 08-28-2011, 02:45 AM   #11
ScoobieBlue18
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CAR IS RUNNING!!! we had the first star up at around 12 oclock in the morning! and worked out some bugs and then did some street tuning! i cant believe its running!
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Old 08-28-2011, 05:48 PM   #12
subi400
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Sweet!!! How much power do you think you will be making?
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Old 08-28-2011, 08:11 PM   #13
PeteJM
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Congrats mate, I will be following this project
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Old 08-29-2011, 07:03 AM   #14
Kevin Thomas
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Quote:
Originally Posted by ScoobieBlue18 View Post
CAR IS RUNNING!!! we had the first star up at around 12 oclock in the morning! and worked out some bugs and then did some street tuning! i cant believe its running!
Sweeeeeet!!!
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Old 08-29-2011, 04:12 PM   #15
geronimo81
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Glad to hear! Why did you go with the ej18 cams over the ej22 cams?
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Old 08-29-2011, 04:23 PM   #16
xilles
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Old 08-29-2011, 06:18 PM   #17
ScoobieBlue18
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Update! although the car runs we cant seem to find any reason why it wont rev out past 2500 rpm which means no accel or boost and a pain in the ass. it feels like fuel cut but were getting plenty of fuel and the injector duty cycle is not even close to maxed out. were thinking it has something to do with the spark plug wires interfeering with the signal from the crank position sensor. or something with ignition syncing, because im running the factory wasted spark coils...


geronimo81: i did this because ive heard that the ej18 cams have a slightly longer durration. also because they are wide enough to support the ej18 roller rockers as opposed to the ej22 standerd "ski style" lifter.

xilles: hes where i got the idea and influence, except mine is "full standalone"
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Old 09-03-2011, 04:58 PM   #18
ScoobieBlue18
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today i bought a new AEM coil driver. i will be converting my engine to coil on plug! still no real help from AEM tech support though
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Old 09-06-2011, 08:28 PM   #19
seven881
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I'm thinking of replacing my old G1 Link Plus with the EMS4. Wiing issues aside, how hard is it to confiure the AMS software for a GC8? I have a 01 RS and I'm think of getting the EMS4 since AMS is about 45 minutes away from me for tuning.
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Old 09-10-2011, 11:57 PM   #20
ScoobieBlue18
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Not WRB

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Alright guys, so just about 40 min ago i got my car back up and running after about a week of nothing. i got rid of the OEM wasted spark coils hoping that was the issue behind my mysterious 2500 rpm rev limit. and well it didnt work... so now im back to where i was 2 weeks ago. at this point im starting to think its has something to do with a software issue that i cant figure out.

if you have any thoughts on what to do to help let me know. thanks guys.
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Old 09-12-2011, 12:35 AM   #21
anothernord
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Fun build. More pics of engine bay and intake please.
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Old 09-12-2011, 10:53 PM   #22
2slofouru
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Any help from AEM? How about the seller? Seems like they would already have some experience with the ems and could help...
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Old 09-13-2011, 10:12 PM   #23
ScoobieBlue18
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uhhh. not really. like all of the issues ive had so far have been solved by my own trouble shooting... beau is the only one on the tech support team that actually knows what hes talking about everyone else is retarded. But even he cant do to much from over the phone. and no they really havent had much experience with subaru stuff. honestly, i would never recommend an AEM standalone unless you have no time constraints and a lot of time. and even then its just a pain in the a**. like i understand theres going to be issues with projects. but this is ridiculous.
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Old 09-15-2011, 11:54 AM   #24
geronimo81
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Quote:
Originally Posted by ScoobieBlue18 View Post
geronimo81: i did this because ive heard that the ej18 cams have a slightly longer durration. also because they are wide enough to support the ej18 roller rockers as opposed to the ej22 standerd "ski style" lifter."
You must be talking about ej22t heads/cams then
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Old 09-15-2011, 10:47 PM   #25
ScoobieBlue18
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geronimo81: that i know of. the heads i bought were from a NA ej22.

any who. so yesterday when i went to start my car to trouble shoot. i didnt even think about the air/coolant temp enrichment in the software. basically my injectors we firing twice the amount of fuel that should have been sprayed. and it fouled out my plugs so i need to get new plugs and then go back at it...
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