renob123

Great post, 'Chux. Jacob

Subruise is referring to me. There was one Brat in Canada or NE Washington that had one before mine did, though. Don't bother with any power beyond an EJ22 with Delta cams until you've worked out suspension, brakes, and drivetrain. Jacob

How did you bypass it? With a bracket? The wastegate could be opening early. Is the arm hooked up ok? It sounds like a vacuum/boost leak, in that case. Also, if you don't know the difference between a coil and a coilover, then you should take it to a shop:) Jacob

Can it get over 3-4,000 rpm at all? If not, it may be valet mode. Jacob

Are you sure they weren't on an EJ20G/EJ20K ECU, though? Jacob

I think it's a Group N ROM for an EJ20G/K. I wish I could find the link for it. Jacob

Do you have any info on the Group N roms? I know I've seen a pretty good site/post for them, but I couldn't find it. Jacob

Where are your IDCs? Jacob

Cool. I have an ECU from the '91-'93-ish era. I've always wondered what was going on inside of it. How does it look when it's not idling? I'd guess it's not lean at higher RPMs/loads. Have you considered anything else to be your problem? Bad MAF/O2/Injectors/Plugs? Don't bother with the top thing. I tried moving it all over the place, and it didn't help. Using the bottom adjustment helped, though. I'd phrase it this way. Right now, your IACV isn't controlling the idle. Mine is. Messing with the thing on the bottom gives the ECU/IACV some ability to adjust the idle. Right now yours could very well be pegged, with the conditions that are way outside of what the ECU is willing to do. I can't remember what my warm idle is. The car is in the shop for some work. Assuming the air travels at the same speed, then yes, I'd guess the difference in time is minimal. I don't know anything about fluid dynamics, but I'm betting the air takes less time to get to the cylinder when it has 2 places to go vs. 1 place to go, at least when both places are summoning the air with vacuum. So sometimes the air gets to the cylinders quickly, and the injectors need to fire soon, and sometimes the air takes a bit longer. That is totally my rudimentary understanding, though. Cobb would probably have a way better explanation. Maybe williaty on NABISCO would as well. Jacob

I may want to get in on that. Mostly out of curiosity, though. I'm happy with my Frankenmotor+cams and OBDI ECU. It took a long time to figure out the idle, though. I guess it has something to do with the overlap reducing dynamic compression which reduces the vacuum. We're dealing with a limited sample size, so I think it's too early to tell whether you're unlucky, or I'm lucky, or if there's some magic step to take that will help everyone. To me, my Frankenmotor just feels like an engine that has cams. If you've been to a "hot rod" show (aka: cars that just sit there show), then you'll know how a car with cams will behave. For the IACV, yes, I'm talking about the bottom one. The top is the electric thing with an electric plug on it. The bottom will have a hex on it so you can use a socket wrench on it. The electric thing didn't help. Turning the hex on the bottom helped. Yes, the air has been metered. However, my understanding is that in a MAF car, under some conditions, the time between when the air is metered and when it is used in combustion matters. If a ton of air gets metered, then the computer expects to dump a ton of fuel some time down the line. Lengthen or shorten that time, and you'll get lean/rich conditions. That's why STIs could use a retune after the addition of most aftermarket intakes. Does that sound reasonable? Jacob

Huh. I hadn't realized you could use RR on a '92 ECU. I have no idea about the tuning part. I ended up getting a pretty good idle on mine by adjusting the IACV. The upper adjustment didn't do much, but the adjustment on the bottom helped a lot. If you're running lean due to unmetered air, then I'd bet on the IACV over air sneaking through the exhaust valves. Jacob

My 2 (well, 3, I guess) suggestions still apply to your case. Hydro or 200SX rear calipers. Jacob

Use this. The two options I know of are to swap to rear calipers that have an e-brake bracket on them (obk25xt is selling some, BTW) or swap to a hydraulic e-brake, which would make you less street legal. Jacob

Yes, you'd have no problem bolting them onto a '96. Round mounts are present somewhere around 2006-ish. I've heard good things about this as your next upgrade: http://turninconcepts.com/product_info.php?cPath=1_9_10_1496_1499_1506&products_id=186 Jacob

Jacob

I drove a Megane along the Autostrade from Roma to Firenze. It was hard to give that car back to the rental agency. Mine wasn't a Group N one, though. Oh, I forgot to mention the other thing about these mounts. If you have the round motor mounts, then you'll need the metal plate that attaches to these square ones. The Megan package doesn't come with them. If you get the mounts from a dealership or something, then they usually do come with the plate. Jacob

Yeah, I told you the stock transmission mount would be a joke. My work blocks my pics. Now that I can see your pics, I know mine weren't chipping like that. Jacob

I'll say it as many times as that place gets posted here. Autopartswarehouse has incredibly poor service. It'll be fine if the order goes totally according to plan and you don't need to call them or do any warranty claims or anything. I'd rather pay a few extra bucks (if that) for the extra protection and knowledge that I won't get treated like isht on the phone. Jacob

I've done this upgrade twice now. A few things: 1) The pitch stopper is the same as an STI one. It's widely accepted that it will make no difference at the power levels that just about anyone on this board is making. 2) The price of the official Group N engine and transmission mounts from Subaru is about the same as this kit. You just don't get the pitch stopper. 3) Mine weren't spray painted, I don't think. They honestly looked like Group N mounts with a Megan sticker on them. 4) Your car will feel a lot more solid and predictable, and it'll be easier to shift. The stock transmission mount is a joke compared to the one in this kit. You'll feel a little more side-to-side vibration, but the "connection" to the car that is gained was well worth it to me. 5) I did this swap on cars whose mounts were 1 and 6 years old. Doing the swap on 15-year-old mounts will probably be substantially more rewarding. Jacob

That's certainly the first part of the standard upgrade path for Subarus with turbos. Cams and headers make the biggest difference on an NA Subaru that I've seen, though, with cams probably making the most power/$. Keep in mind that an STI can make substantial power with the stock airbox, but then, there used to be pictures on NABISCO of a guy who got his hand sucked into the turbo while tuning. NA Subarus don't quite have that same ability to pull in crazy amounts of air. Williaty's hybrid intake and the old-school Ganzflow are the only two intakes I know of that are backed with any form of measurement. To the OP: We can't decide if it's worth the trouble for you. That's up to you. If you like flushing money down the toilet, then go ahead and purchase the WeaponR. Jacob

You should start here, in addition to searching: http://www.ultimatesubaru.org/forum/showthread.php?t=73676 You'll want the front crossmember from a turbo Brat so you can fit the up-pipe. You'll also need lots of time and money for unexpected issues. For example, that engine will show you how badly you need better mounts, brakes, and suspension. Jacob

There are bumpers made in the US by a few people for your car. You can probably find one by searching on here. You can also improve your approach angle by lifting the whole car. Primitive Racing in Oregon sells King Springs, which will lift your car. The other way would be taller tires, but that would mess up your speedo readings. Jacob

Were you there? What car did you have? Jacob

I was there. I saw them once in service, and once in a Parc Expose, but they were pretty elusive during the day. I wanted to have a peek inside and take some pics, but I never got close enough. Jacob

He's not hard to find: http://www.ultimatesubaru.org/forum/member.php?u=54 Jacob