Buschur Racing's Evo X has arrived!

[vwjeff]

The car is already making 10% more power than it came in with. A fuel pump is sure to come soon. Especially if they put a mbc on.

The stock pump is like a 255 if not better.The flow of the pump is HUGE over a IX pump from what I have seen.

[Lonnie gandee]

The stock pump is like a 255 if not better.The flow of the pump is HUGE over a IX pump from what I have seen.

I'd imagine if they keep the boost to 22 psi at 7000 rpm, thats another 100 hp on the way though.....


C-mon, no fuel upgrades, thats silly thinkin...

[brian 5150]

what about some sort of tuning device david? jarrod i believe said the car ran pig rich. anything to control that yet?

[Spoolin0nYou]

what about some sort of tuning device david? jarrod i believe said the car ran pig rich. anything to control that yet?

S-AFC is about the only thing I can think of currently that will work with the X...and even that may not work.

With all the electronic controls for the S-AWC system being in the ECU, it's gonna make it a PITA to tune. Surely somebody will hack the code soon, and they'll be doing flashes to the ECU.

Also, judging from what I saw of the engine bay of the X at the dealership today, it's gonna be a PITA to put a large turbo on it. The ABS controller is RIGHT NEXT to the turbo. Bigger turbo = closer placement, and more heat = bad for brakes. Also, there's ~4 brake lines that are on the firewall right above the turbo/downpipe. From what I can tell, you will be required to get an aftermarket exhaust manifold in order to run a upgrade turbo. Mitsu surely made this EVO a PITA to mod.

[David Buschur]

I will be doing the fuel pump sooner than I probably need to so I can get into the fuel tank and make a double pumper. I don't plan on taking 4 years to make 600+ whp with this car, I'd like to have the parts out and available that I know we'll need.

Looking at the turbo on the car, I don't think it's going to be hard to get a larger turbo back there. I'm looking forward to it actually.

There is tuning software coming very soon for the car. As soon as you start modifying it the AFR's start coming around. Stock they were 9:1. Now we are up in the low 10's with just the few things we've done. I actually put a bung in the exhaust and have the wide band from the dyno directly in the exhaust so I can keep exact track of the AFR's.

I can tell you for sure there is fuel mileage to be gained in this car. I have no idea why Mitsubishi has it running so rich at cruise speeds. I'd have expected to see 14.7 at the richest and maybe as lean as 15:1, no way. The car will not run leaner than 14.4. This is very good as there is room for improvement for sure in fuel mileage too.

[wishihadatalon]

I would like to say to thank you to all of you for putting the stock radiator trim piece back on over the the intercooler pipe. Others probably are able to, but you did do it. Great work, as I should expect. I can't wait to see where the 10 goes. One day (hopefully soon) I will be able to buy one and finally have a nice daily.

[blackout]

Parts are lookin good, keep it up. Thats one of the the great things about you Dave always thinking about saving the customer money! I have never heard anyone else mention about better fuel economy for the car, which is good because people are out of boost more than they are in boost. Well most people.

[t2fastalon]

have any special plates in mind?

[BossEvoVIII]

^^^^^HAHAHAHa awsome plate ideas lol

[Rogue]

What injectors are stock?

What are the spec of the stock parts vs what your putting on?

IE - IC pipin diameter, exhaust diameter, injector size, fuel pump size, etc.

[SloRice]

Reading some of the other X threads on EvoM, I think the engine management of choice right now is the AEM FIC. From what I've seen in the IS300 world, which is a CAN BUS car, it seems to work pretty well.

[Jrod@Buschur]

Here it is guys! Hope you like it.

Buschur Racing True Dual 3" Catback *SOUND CLIP VIDEO*

[boostedinaz]

Reading some of the other X threads on EvoM, I think the engine management of choice right now is the AEM FIC. From what I've seen in the IS300 world, which is a CAN BUS car, it seems to work pretty well.

So far that seems to be true. A local company just put down over 400 at the wheels with a 20G upgrade using the FIC.

[David Buschur]

I considered the FIC from AEM the problem is there will be much better software coming SOON. So I don't want to go down the same road we did with the EVO8-9's with hacking into the factory wiring for an AFC. Too many people really tear up the wiring harnesses. I think the best bet on fuel management is to wait for something to do it right. The car is responding really well to modifications right now. The AFR's are rich, so very safe. I think until we reach the point the car is running leaner from the modifications there is no need to "worry" about fuel management. Don't get me wrong, if we had it now the car would be up a TON of power but atleast at this point adding parts is safe and the car is gaining power. I do not want to cut the cars wiring harness for a temporary solution like an AFC or FIC when I KNOW something else is close.

Today we will test the downpipe, offroad pipe and boost controller. Then we are going to the FMIC on the car.

As for specs on the stock parts compared to the replacement parts. We will get to all that as soon as we can take a breath from working on the car. The factory parts on this car are very nice and large. The bends are all mandrel on the exhaust. The muffler was for sure the largest restriction in the exhaust, now maybe the cat will be next. I am fairly certain there will be no gains in the downpipe but the 02 housing is a wreck and needs to be changed/redesigned.

[David Buschur]

Today was a ROUGH-ROUGH freaking day. What a headache.

Here is a run down of what we did. Brought the car in first thing this morning. We built an offroad pipe. Easy piece to build, put in the 02 bung, built a mount on the side for the hanger and the factory heat shielf for the rubber mount. As soon as I started the car it sounded great. Much deeper (louder) and sounded like an EVO now!

We put the car on the dyno and made a few pulls. NO power gains. WTF?! Very disapointing. Pretty soon the CEL came on. Very disapointing x2. Grabbed the scanner to pull the code, the scanner we have would not work. Great. Called a bunch of parts stores to find a scanner that was OBD2-CAN compatible. Found one and it was delivered very quickly. Pulled the code, yep it's for the cat. Very odd as we used the mechanical 02 fix we use on the EVO8-9's, not good enough for the EVO X. So that sucks on top of that there was no gain with the offroad pipe, so atleast I can justify putting the stock cat back on and then the light will be off, right? Wrong.

Next thing, I figured while it was on the dyno and now that the exhaust was free flowing I'd finally put our inline manual boost controller on it. INSTANT success. The freaking car impressed me. 292 whp and 261 ft lbs of torque, power was still climbing at 7,000 rpm where I am ending the runs. This was a gain of 47 whp and 3 ft lbs of torque. The torque did not come up as the factory boost controller is hitting a solid 22-23 psi on each and every run. I set the manual controller to the same peak boost but it now holds about 18-19 psi at 7,000 rpm where the stock controller only held about 12 psi.

Unloaded the car from the dyno, put the stock cat back on the car. Loaded the car back on the dyno and re-dyno'd. Now the new results make sense. The car with the boost turned up and stock cat re-installed back on the car it now lost 3 whp peak but lost 17 whp in the upper mid-range. I did quite a few runs on the car today trying to sort things out. Fuel cut is right around 24 psi and I hit it leaving with more CEL's to get rid of.

So today I learned the stock cat is pretty damn good. The peak power difference between the stock cat and a 3" offroad pipe is minimal, the midrange is effected from what seems to be higher knock counts. I am now monitoring the timing and with the stock cat it was more retarded in the 5800 rpm range than it was with an offroad pipe. Also seems as though the old mechanical CEL fix for the offroad pipe is not going to work. I will mess with it more but right now looks like, NO.

The car runs pretty damn good timing numbers, I am seeing 17 degrees at 7,000 rpm on the scan tool. I also think once we get some real tuning software we are going to find a ton of power as it appears as though Mitsubishi and Subaru got together on their drive-by-wire technology and the scanner is telling me the throttle never reaches 100% opening.

So for your viewing pleasure here is the dyno sheet comparing the car with our 3" True dual catback exhaust, BR air filter kit, BR upper i/c pipe to that PLUS a manual boost controller:



Here is the BR catback, BR air filter, BR upper i/c pipe, BR manual boost controller compared to all of that PLUS an offroad pipe:



Enjoy the sheets.

[David Buschur]

Very impressive gains when you compare where we started just 48 hours ago with this car. We have gained 102 whp at 7,000 rpm and 81 ft lbs of torque at 7,000 rpm.

The peak number gains are 81 whp and 25 ft lbs.

The peak torque numbers have not gained much because the peak boost is very close (within a pound) of the factory 22-23 psi peak.

I am very impressed so far. Really need some tuning software to really wake the beast.

In 48 hours we have gone from bone stock to now having our BR 3" True Dual catback exhaust, BR upper i/c pipe, BR airfilter kit, BR 3" offroad pipe and BR manual boost controller on the car.

Check out the gains on the dyno sheet.

[blackout]

I love the dyno sheet! Have to shove it in the face of all those nay sayers that said the car would suck.

[brian 5150]

was funny i was sitting at the dentist with my father today reading motor trend and they had the new mr against the new sti wagon. said the new sti pretty much beat up on the mr in a few areas but overall the evo was much better to drive cause there isnt much correction in the yaw control which means they were able to drift the car into powerslides in the road course. they said the sti was way to stiff and very uncomfortable and wasnt as suited to the course as the evo was. they also said the gsr was a total shit box when they first tested it, but again it was kinda like the prototype model and mitsu wasnt done with it completely so im glad to hear things were commin along. they said they dynoed the mr and it made 245 at the wheels so that sounds promising as well.

[Spoolin0nYou]

I love the dyno sheet! Have to shove it in the face of all those nay sayers that said the car would suck.

I'm doing that on the local forums right now... lol

[Sebba]

Thats awesome!

What I can't wait to see, is when you finally get the chance to push the limits of the stock internals : )