Install was quick, took like 25-30 min. So far the only differences noticed are a LOT more noise. Compressor noise is beautiful, lots of recirculation noise. Also, there is a noticeable difference in response. It also over-boosts much more now. I pegged it at 15 PSI a few times today. Normal peak boost is 11-12 PSI.
I've been thinking more about future powertrain options. Vipec ECU and a tune on stock turbo? VF39? 20G and E85?
I'm actually currently under contract on a house, so its possible the RS will have a GARAGE to call home! In that case, the body items I've been dying to fix will move up the list as well.
Ooph...Sometimes this damn car takes me to my wits end.
So, this last weekend, was driving to a friends on Saturday and the car goes into limp mode. Checked the codes (black connectors) had 4 Major engine codes including Knock sensor (Which is very new), TPS, MAP, and one other. So I'm thinking 4 bad codes out of nowhere? Maybe a bad ground. Sure enough, had 100-200 ohms between the negative battery terminal and the main engine ground.
So the next day, I went and got a new ground cable and installed. Sure enough, codes didn't return and the car ran super strong. You could even hear a difference in the starter motor - further proving that the ground was likely an issue.
then this week driving to work it goes into limp mode again. This time though, its not setting any codes :crazy: Even when I had those 4 major codes, the CEL never set. And now it's seemingly in limp mode for no reason.
I'm super fed-up with the stone-age level ECU. Got some quote yesterday on the Vipec plug-in model. I think after everything with the house is settled and closed, I'm going to buy it. Then that way, even if I decide to stay stock turbo for a while, I'll have a modern controller with far better diagnostics.
Some drunk asshole at my apartment threw a fire extinguisher at my window while I was gone for the weekend. $200 later, new windshield....good as new. Still, it bounced off the roof and left some dents ehhh...Can't catch a break.
Closing on my house keeps getting pushed back and back. Hopefully closing in 2 weeks...GARAGE...!!!:banana:
Moving on...Work has been pretty generous with Bonuses this year so I ordered a Vipec plug-in ECU for V2 WRX from Innovative Tuning in NY. I have to wait for them to place a stocking order, so It might take a bit...but...! Super excited.
In preparation, I got an AEM wideband and EGT gauge which I'll wire into the ECU. EGT will go into my center gauge pod, taking the third spot. This left me with no place for the Wideband, so I went ahead and did this...
Center vent removed, turned into gauge pod. I wanted to keep the gauge high and within sight.
Made a cardboard template
Cut it out of carbon fiber
Cut a clearance for the gauge
Hopefully I'll get to installing the working bits tomorrow.
Since August the biggest change has been we finally have a house! And more importantly...a garage!
I now have my tools at home and can takle longer term projects and leave the car apart if I have to.
Updates to the car have been:
AEM egt gauge installed. Still need to install the sensor in the manifold.
Right before we moved I got a killer deal on a used Blitz Nur-spec R. This required a new down pipe as my ebay junk one was the wrong length. Picked up this AMK down pipe on Ebay for $140 shipped and it fits perfectly. Very good quality and nice cast bellmouth.
However! In order to install, I wanted to fix the 2 broken studs on the turbo that I had never addressed. This turned into 3 broken/damaged studs as I was trying to fix the other two. There was no way I would get this done with the turbo on the car, so I decided to remove it. Easier said than done. All 3 of the nuts mounting the turbo fought me tooth and nail on the wait out. The last one, I had to cut/chisel off which damaged the stud on the up pipe. Instead of fighting with replacing that stud too, I got an Invidia up-pipe.
The turbo studs turned out to be a huge project. I eventually had to have some machinist friends at work help me out. They had to drill out the 3 old studs, weld the holes in, re-drill and tap all 3.
I got my silicone turbo inlet which is a generic reducing elbow. It has no provision for a BPV so I'm going atmospheric. This is a turbosmart kompact supersonic knock off. I'm skeptical that it will work, however it is a very simple design and so far seems to be functional. I had to modify my samco inlet hose to fit it.
The aforementioned Blitz Nur-spec all polished up thanks to some Nevr-dul
And more the AMK down-pipe. I gotta mention that this is the least expensive DP with a second O2 bung for wideband on ebay. Shipping was super quick and as I said earlier, the quality and fitment was perfect.
I got the rear bumper off so I could start attacking the rust on the pass side rear quarter. The bumper beam itself was super rusty so I'll probably replace it with the aluminum beam. Rust is going to be a bitch. The lower panel I can buy and weld in, the fender it self I'll patch with a custom made panel.
Blitz exhaust installed. It sounds SO much better/more aggressive than the ebay crap I had. Fitment is much better too.
I also was able to order my Vipec plug-in ECU from Innovative Tuning this week! I had to expedite shipping, but it will be worth it. Hopefully that will be my next update in the coming week or 2.
Current engine bay shot...still have to complete my pcv/catch can vent
Close up of new turbo inlet and BOV
Silicon inlet is a 90* reducing elbow (2.5 - 2.25" ) from siliconeintakes.com. of course there are no ports for pcv or BPV, hence the vent to Atmo pcv can and BOV. The new ECU is map based air path control, so VTA BOV will be no problem.
So far the knock off BOV seems to work okay. Its a pretty clear copy of a Turbosmart Kompact Supersonic. I have had to shim the spring a little bit to get it to work better and also removed one O ring in the piston bore. In the genuine version the piston seals right to the bore presumably by tight machining tolerance. On the knock off they use two O rings which restricted the piston movement. Removing one seems to free it up nicely and still seal.
Had two projects to complete (or at least start) today:
Install EGT thermocouple
Remove intake manifold so I can finish my PCV system and pain the manifold.
Some photos from today....
It's suuuper dirty because the PS pump has been leaking for some time it looks like. Did my best to clean it up a bit, but its hard with the intake ports open and in the car. Probably will have to rebuild it at some point and thoroughly clean then.
Eliminated the throttle body/IAC coolant lines. Just ran a hose from one nipple to the other...
Crank case vent hose and T all cleaned up
I'll plug the PCV valve hole with a bolt. Heres the CC vent re-installed. Hose coming from left is from the passenger side rocker cover vent. hose going to the right goes to the drivers side rocker cover vent.
The line in middle from the T will go to the catch can mounted next to the alternator. Catch can is vented to atmosphere via the little filter. With the intake mani out, I was able to pull out all the stock plastic PCV hard lines.
I stripped the intake manifold, de-greased and cleaned, and masked
Sprayed VHT wrinkle red
Also decided to do my Apexi intake too
Still drying and wrinkling but looking pretty good...
While all that dries I got to work on the EGT probe install. Removed the drivers side exhaust manifold. Drilled with 11/32 bit...
Tapped with 1/8 NPT
Get the TC centered in the pipe..
TC and compression fitting installed and ready to go...
Thats all for today. Gotta wait for the wrinkle red to dry at least two days before I can re-assemble.
Vipec standalone should be here next week (fingers crossed!) so I'm hoping to have it all together and running by next weekend :clap:
Got the engine back together yesterday. I wasn't sold on the red before doing this but now that its all back together I'm really pleased with how it came out...
After getting it back together I drove it around a bit on the stock ECU to make sure all was okay. It actually ran better than it has in a looong time. Too bad It hasn't been running like this for a while!
Onto the Vipec install...
Removed the stock 3B wagon ECU
Here's what comes in the Vipec kit...
Board, anti static wrist strap, USB cable, decals and an IAT sensor that was extra
Open the stock case up and remove the old board...
Installed the new board...
Had to notch the case so the interface cable can protrude
Aaaand...Up and running!
Still need to configure IAT, Wideband O2 and EGT into the ecu...all on my to do list. And then base fuel tuning...
Okay, so again some time has passed since I've made an update. Since last September there have been a couple of changes and a couple of trips, but mostly the car has been sitting in it's new garage.
IAT and EGT sensors were installed and configured. EGT gauge installed as well. Working on wiring...
Just after I got my Vipec ECU all up and running, I started road tuning and doing some tinkering. I noticed pretty soon on that the internal baro sensor would drift up as the car was running. After doing some diagnosing and working with both Vipec directly as well as Innovative tuning (my dealer) we figure it was defective. I must say that both Vipec and Mike/Ian at Innovative went to incredible lengths to get my problem solved. Not only did Vipec send out a new ECU immediately (without me having even sent my old one in), they got it to me from New Zealand in 3 days! And, Innovative sent me a bunch of decals and a hoodie for my trouble.
Up and Running on the new module!
All of this meant I could take my RS to LSPR rally in Houghton, Michigan as I had been planning on - but not without one more hitch.
3 days before I was supposed to leave for LSPR my radiator sprung a leak - A cracked end tank almost thwarted my plans. However, I was able to get a Mishimoto from Summit just in the nick of time.
Here's some photos from LSPR...
I'm loving the Nur spec, btw...!
A little grass mustache
Accumulated dirt from the weekend...
Also, here's a couple videos of playing with the rotational idle and a little bit of playing with the anti-lag. Let me tell you...This thing, with the crazy idle, the Blitz exhaust and Anti-lag......produces an absolutely brutal noise.
I need to get some better videos up of playing around with the anti-lag...
Other than all of that, I've just been working on getting the tune more refined.
The Mishimoto Rad uses GD WRX style radiator brackets so the stock ones wouldn't work. I got some Mishimoto brackets to match...Perrin wants something like $70 for these! The MM Brackets we're $22.
Next up...I had been suspecting my knock off BOV had been the source of a boost leak. The car will spike to like 12PSI and then quickly drop and hold 10-11PSI. So I got a 25mm plug to completely block off the BOV. I'm not worried about the turbo...I'm already using anti-lag and this is just a little more torture for the stock TD04. Plus, a friend of mine has been using no BOV on his VF39 for more than a year with no issues.
Also, played around with some turbo blue 110 Leaded race gas. Because why not. Found a gas station like 3 miles from my house that sells it!
A couple of non RS related updates...
Finally pulled the trigger on a garage heater. This will make it possible for me to start the rebuild on the RS this winter. My plan is to completely tear the car down and clean, rust kill, and replaces parts as needed (bushings, suspension, etc.). My main goal is to get all of the rust cut out and fixed and all of the body work repaired.
So anyways...new heater and gas line installed in my garage...Heater install this weekend:
Also got new rubber for the STi...Gonna need brakes soon too which isn't going to be cheap...
I wouldn't worry about the no bov situation. Most aussies with built / semi built engines don't run one. I've heard many a stories of them lasting years without a bov and a solid tune required to boot.