OMG very Nice stuff guys. This is the BEST Catback we seen. Thanks for taking your time on making them and not rushing things out just to be the 1st like some other places. When do you guys think this will be ready for sale?

 

David, When I go to your site, I do not see the your parts for the X, am I doing something wrong? You have some items I want.

William Jackson (jacksontw60) jacksontw60@comcast.net

 

I am working on that now.

I apologize for the delay. I HOPE to have something up and going by this afternoon but I can not make any promises. It would be probably monday at the latest. Sorry for any inconvenience. You can however call us. 440-839-1900.

 

PM sent sir!

 

That exhaust sounds SWEET!

 

Honestly, I wasn't a huge fan of the look of the Buschur parts for the VIII and IX, but these new parts for the X look great. I especially like the brushed finish on the IC pipe. great work on the exhaust too. I know Buschur Racing isn't about the looks though ...

 

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.

 

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.

 

Thats interesting about the cat. I would have thought that there would be some power in using an off road pipe. Thanks for sharing your findings.

 

Umm, yeah. That MBC put it way over the top!!

David, I have tuned a friend's RX-8 which is also a CAN based system. We tried the O2 anti-fouler extensions on his car and it was a no-go too. The rotary runs ridiculously hot EGTs, so getting the cat out of there was a priority, plus the power gain was OK for a NA car.

He ended up having to do an electronic fix to get the system to not throw codes. That means we might have to wait for ECUflash or ECUtek, since the electronic O2 tricker companies (Casper Electronics, etc) got attacked by the feds and don't retail those anymore.

I am definitely in on the exhaust and an MBC too after seeing this. Just have Jarrod hit me up when you guys are ready to rock so I can pay. I can't wait to get this stuff installed and my car on the dyno.

Thanks a ton.

Seth

 

Good job. Just incase all the noobs dont know, this is one of the lowest readin dynos in the country.

Dave, what does a IX with 300HP on your dyno run in the 1/4?

 

Here are the pictures of the offroad pipe on the car. The stock cat is VERY long. The tubing, flanges, 02 bung are all 304 grade SS. Flanges are 3/8" thick. As you can see we have moved the 02 bung to the passenger side vs. the drivers side. This makes it so you can leave the factory wiring tucked nicely into the bracket that protects it. We have also put a mount with a stud on it so you can re-use the factory heat shield and mount. Without the heatshield I'd say the rubber mount would melt.

 

noize, we will let you know on the exhaust. Please be patient. The catcack I'd like to run on my car for atleast a week or so and make sure nothing wants to move around. Then we'll pull it off and send it to the bender. It is a time consuming piece to build. The filter kit, upper i/c pipe, MBC and offroad pipes are all ready to go. (if you are willing to take the upper i/c pipe brush finished with the weld seams)

An EVO 8-9 on our dyno with 300 whp will run in the 11's with a good driver. Remember though, the torque numbers on the EVO X so far are quite a ways behind the 8-9's. A typical EVO 8-9 at 300 whp has close to the same torque.

The fuel that is in this car, I am sure is weak. The stock EVO8-9's we've dyno'd right off the showroom floor for the BR330-350 kits all sucked with the factory fuel in them. My car was not filled up when we got it. We added 5 gallons of 94 octane to it before we even started to help with the fuel quality. Once I get the tank emptied I will refill it with 93-94 and I expect to the see the power improve.

Timing seems more aggressive than the 8-9's too.

Did I mention, WE NEED SOME SOFTWARE TO TUNE THIS CAR? haha

 

Also the X weighs more, so I'd figure 340whp on this dyno to be certain of an 11-sec pass.

 

I think because the X actually seems to have some ***** its growing on me. Im very curious how a full bolt-on one will fair against a full bolt-on EVO IX. I wish the track was open so we could see some trap speeds! I remember when the testing of the EVO VIII was going on and all the kits developed had track times too, it was awesome. Damn winter...