26psi boost creeping ebay 02 housing equipped beast gets tamed by TTP!

[MR_Scott]

Dion was referred to us from some of our Tampa, FL customers. His silver Evo IX GSR Had a concoction of ebay parts slapped together for us to work with. We don't discriminate, however do enjoy customer who we can save shortly after they purchase the car so we can get them on the right track early. The parts we noticed were intake, ebay exhaust manifold and Ebay O2 housing with TBE.

We got to work and strapped down the IX to do a baseline pull. To our surprise, the car's boost response was slow and laggy, yet at 5500rpms the boost creep took over and raised the boost 10psi greater than the set psi as wastegate hole in the EBAY O2 housing was so small that it could not expel the wasted gases fast enough through the tiny hole to slow down the turbo. On the bright side, it did hold 22psi to redline. :lol:



This is one of those cases where you cannot measure peak to peak gains as these mere NUMBERS are meaningless without a graph. Due to the severe boost creep, the high boost the car came in with produced decent numbers as a peak, but the area under the curve was horrible.

If it was our decision, we would have swapped this O2 housing out asap, however we were merely there to tune this one so we coped as best as we could. With less boost and focusing on the torque curve and area under the WHP curve, we meticulously worked on the linearity of the tune and worked around the boost creep. With a replacement O2 housing the car would certainly have made more torque, however with what we had to work with, I think we made huge improvements in usable power and torque.

Here is the overlay of before and after the tune with the tuned map on slightly lower boost:

[SuperDipz]

Good stuff, keep up the good work.

Tell Dion to use the Megan or TTP 02 Housing, I use it on my car and it's never failed... while the car ran. $100 bucks and a good deal!

[Pro-Active Automotive]

Good job, good numbers. I think the invidia o2 housing is the way to go. A good intercooler you'll be all set. Not one made from around here!

[MR_Scott]

Originally Posted by Pro-Active Automotive

Good job, good numbers. I think the invidia o2 housing is the way to go. A good intercooler you'll be all set. Not one made from around here!

Invidia O2 housing is one of the biggest pieces of trash there is. The divider wall between the turbine side and the wastegate side has serious design flaws.

We have dynotested the invidia housing to actually slow spoolup and lose power.

[Pro-Active Automotive]

It works great for me! Sorry you've had issues with it.

[MR_Scott]

Originally Posted by Pro-Active Automotive

It works great for me! Sorry you've had issues with it.

We actually have a dynamometer in order to test parts effectiveness without "luck" and what we "think" it should make.

Buschur Racing has also tested this part to be inferior to the Megan Racing O2 housing.

[Pro-Active Automotive]

An actual Dyno, well done. So your saying my numbers are all "LUCK". Guess I'm a lucky guy then! It seems my housing is working better than the Buschur parts that keep breaking on my customers car.

[MR_Scott]

Originally Posted by Pro-Active Automotive

An actual Dyno, well done. So your saying my numbers are all "LUCK". Guess I'm a lucky guy then! It seems my housing is working better than the Buschur parts that keep breaking on my customers car.

It is common knowledge that the Invidia housing sucks on the Evo. It has been tested by many.

I agree. We do not deal in any Buschur parts and refuse to install them either for a number of reasons.

[Pro-Active Automotive]

All I was originally doing was complementing you on your tune(Scott). I made a comment about what has worked extremely well for me (with the numbers and wins to back it up). You go and get bent out of shape. Chill

[Pro-Active Automotive]

Someones got pull

[MufflerBearings69]

Originally Posted by Pro-Active Automotive

Someones got pull

No sir- I dont think we need vendor on vendor bashing.

So I personally decided to delete that stuff.

Would do the same for you or any of the other 20 or so!

(even if it makes me less popular on here than I am now) lol

[MufflerBearings69]

If anyone disagrees please PM me- honest opinions are ALWAYS welcome.

[Exhaust Depot]

real parts > china/ebay parts.

[jqturbo]

Originally Posted by Exhaust Depot

real parts > china/ebay parts.

Perhaps, however ebay parts have been proven on mid-high hp cars as well. They're not all crap.

There was 2 styles of the ebay 02 housing from what I remember. One worked well, another didn't.

Either way, whatever...great gains.

[MufflerBearings69]

i always forget what calling something "ebay parts" means in the import world vs. mine-

95% of what I buy off ebay for the cars is obsolete OEM stock out of closed down dealerships... like my new in box 1968 underdash air!

meh, its all what you buy, how well its made, how well it works moreso than where from...

[Shane]

Originally Posted by jqturbo

There was 2 styles of the ebay 02 housing from what I remember. One worked well, another didn't. .

Yeah the QTP O2 dump has fitment issue, so we are in the works of developing a O2 housing dump that fits! lol

[MR_Scott]

Originally Posted by Exhaust Depot

real parts > china/ebay parts.

American engineering, Taiwanese Economics. Best of both worlds.

[sohcvtec1995]

Originally Posted by MufflerBearings69

If anyone disagrees please PM me- honest opinions are ALWAYS welcome.

pm'd/ and thats a nice avatar

[MufflerBearings69]

Originally Posted by sohcvtec1995

pm'd/ and thats a nice avatar

pm replied, and yeh, a special buddy hooked me up lulz