The not-so-offical EVO 9 ECU tuning thread
The BR330 hp levels would not be hard to duplicate at all if you didn't care about warranty or removing the stock cat. The hard part is making the power through the stock cat and without a manual boost controller.
The re-tune is where most of the power lies.
David Buschur
www.buschurracing.com
The re-tune is where most of the power lies.
David Buschur
www.buschurracing.com
What we do for the hp numbers is this. Say a stock EVO is rated at 286 and then we put it on the dyno and find it makes 210. In order to claim a 50 or 70 hp increase we have to increase the whp by 50 or 70 whp. That is how we came up with our BR330 and BR350 ratings.
David Buschur
www.buschurracing.com
David Buschur
www.buschurracing.com
Originally Posted by Warrtalon
I think you're making the mistake of trying to equate the package name with BHP. Depending on what drivetrain loss you prefer to use or what type of dyno you think is the standard, you could make the case that IXs are already at 330bhp in stock form.
330bhp with an 18% drivetrain loss = 270whp, which is what we're seeing on Dynojets.
The BR330 package on IXs is getting them closer to 330 WHEEL HP, not crank HP. Hope this helps.
330bhp with an 18% drivetrain loss = 270whp, which is what we're seeing on Dynojets.
The BR330 package on IXs is getting them closer to 330 WHEEL HP, not crank HP. Hope this helps.
Originally Posted by meanmud
Appreciate your take on it, but now that Buschur is using MD's, that ain't jiving
Originally Posted by Warrtalon
I think you're making the mistake of trying to equate the package name with BHP. Depending on what drivetrain loss you prefer to use or what type of dyno you think is the standard, you could make the case that IXs are already at 330bhp in stock form.
330bhp with an 18% drivetrain loss = 270whp, which is what we're seeing on Dynojets.
The BR330 package on IXs is getting them closer to 330 WHEEL HP, not crank HP. Hope this helps.
330bhp with an 18% drivetrain loss = 270whp, which is what we're seeing on Dynojets.
The BR330 package on IXs is getting them closer to 330 WHEEL HP, not crank HP. Hope this helps.
Thread Starter
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From: Danville/Blackhawk, California
Originally Posted by SaabTuner
That's pretty much what I figured. Mitsubishi might have had youngin's with MBC's in mind when setting the timing/massflow/RPM curves. By pulling timing as massflow goes up, it's less-likely to run into knock as soon. Probably not a bad idea. Figured the MIVEC was part of it too. The best of both worlds; boost-optimalized cam-timing when under boost, and naturally aspirated optimalized cam timing when cruising. It's like the benefits of cam gears x eleventybillion.
Is there any way I could coax you into posting a few of the stock ECU's timing/RPM/load maps? I think that would be kinda cool. Obviously not any tuned maps.
Anyhoo ... keep up the good work.
Is there any way I could coax you into posting a few of the stock ECU's timing/RPM/load maps? I think that would be kinda cool. Obviously not any tuned maps.
Anyhoo ... keep up the good work.
And yep, i'll be happy to post up stock timing/fuel maps. Can't do it until tomorrow though. I don't have access to my laptop right now
Cheers,
shiv
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Joined: Jul 2005
Posts: 274
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From: Davis, California
Originally Posted by shiv@vishnu
FWIW, just started tuning another IX today. It belongs to Greg Vandermark who is the Motorsports Director for Toyo Tires. The car came to us equipped with a 3" cat-back exhaust and a 3" downpipe (running stock cat). It baselined, before the flash, at 233-235whp. Pretty much identical to all the 100% stock IXs we've tested. Peak curve is also very similar with the exception of slightly improvements to spool up. And since the factory ECU's boost control is MAF-based, it does adjust boost pressures to hit the desired airflow targets. That's another reason that VE enhancing bolt-ons don't really seem to do too much to improve power when running stock ECU code.
And yep, i'll be happy to post up stock timing/fuel maps. Can't do it until tomorrow though. I don't have access to my laptop right now
Cheers,
shiv
And yep, i'll be happy to post up stock timing/fuel maps. Can't do it until tomorrow though. I don't have access to my laptop right now
Cheers,
shiv
Except the T7 ECU will "freak out" if your spool up is too quick and it will learn to target lower airflow/RPM values. Which ends up meaning that, in order to modify the engine without losing power, you have to first find a turbine housing with a larger A/R ratio. AND, because T7 uses an electronic throttle body, if you try to use an MBC, it will close the throttle on you to limit boost! It's too smart for its own good.
The upshot is that you can drive the car with the boost control solenoid disconnected, and because there is still a MAP sensor as well, you can drive it without the MAF sensor. Talk about redundancies. Ok, so it's settled, when I get out of school, I'm buying an Evo IX and Shiv is going to give me a free reflash ... and a million dollars.
Last edited by SaabTuner; Dec 28, 2005 at 09:09 AM.
Originally Posted by shiv@vishnu
FWIW, just started tuning another IX today. It belongs to Greg Vandermark who is the Motorsports Director for Toyo Tires. The car came to us equipped with a 3" cat-back exhaust and a 3" downpipe (running stock cat). It baselined, before the flash, at 233-235whp. Pretty much identical to all the 100% stock IXs we've tested. Peak curve is also very similar with the exception of slightly improvements to spool up. And since the factory ECU's boost control is MAF-based, it does adjust boost pressures to hit the desired airflow targets. That's another reason that VE enhancing bolt-ons don't really seem to do too much to improve power when running stock ECU code.
And yep, i'll be happy to post up stock timing/fuel maps. Can't do it until tomorrow though. I don't have access to my laptop right now
Cheers,
shiv
And yep, i'll be happy to post up stock timing/fuel maps. Can't do it until tomorrow though. I don't have access to my laptop right now
Cheers,
shiv
In the case of the Buschur BR350 car with cat back exhuast and intake with ported 02 housing and manifold there were significant gains i9n power with just the addition of the parts without tuning.
BOOST CONTROL is a key though with the Evo as the MAF sesnor based boost calaculations will lower the boost level to some extent as you free up VE. (nothing a reflash can't cure or MBC). NOTE - this is nothing new to the IX - the 8 used the same boost system - only difference is the boost targets are a bit lower in the IX.
Originally Posted by Cloud
Are you stating that the BR330 package on the IXs are putting down almost 330whp of Dave's super low reading Mustang Dyno? Care posting a dyno sheet up? What does the BR330 package include?
Basically, the BR330 packages are putting out close to 330whp on a Dynojet.
I want to see 124MPH with 330whp!! 