Re: Deadmau5X: MOAR Mods 'N Stuff
 

A very very expensive test....yikes.

I plan to go with the ported stocker and ported stock intake mani myself. I am struggling on justifying the rev3 over the rev2 as Clipse on evoxforums saw some very impressive gains with the ported stocker and rev 2 MAP mani.

However on a black I bet it would be worth it for the extra 300/400 bucks.

Scheides, 3" IC piping stuff just isn't necessary i don't think...even people on like 800whp setups I think see very minimal gains and sometimes just loses down low.

Re: Ported/Aftermarket TB discussion
 

Yup just saying, the idea of doing it 'all the way' makes sense if you're gonna do the full 3" setup on the IM inlet and everything. IF this ever happens on my car, it'll be down the road. I will almost certainly do the ported stock IM/TB combo first, it is just too good bang/buck to not try. Before/after on the dyno? Maybe :) After that, I'd consider doing the same thing again if I upgraded to the full 3" setup. God knows I'd surely piss a ton of people off by publishing the results, so who knows. Someone else is welcome to try it though :)

Can you link to those gains that Clipse saw on evoxforums? I remember seeing that and kinda not really believing it.

Re: Ported/Aftermarket TB discussion
 

http://www.evoxforums.com/forums/sho...ev+mani&page=5

MAP rev 2 mani and huge ass 1/2" intake spacer.

Re: Ported/Aftermarket TB discussion
 

A 75mm is way overkill, I learned that the hard way on my GSX, I never could get it to idle right even after converting it to use DSM shaft seals. Seeing that others were in the 9's on stock TB's, I would never go back to some crazy one like that unless I was building a 1000whp track car. I wouldn't go any bigger than a bored out stocker on a street car.

Re: Ported/Aftermarket TB discussion
 

How big of gains are actually seen on the dyno from these IM and TB mods? I thought on Kracka's IX it was very minimal for the price paid?

Re: Ported/Aftermarket TB discussion
 

Not sure on Kracka's car, but I personally wouldn't do this on a stock turbo car.

On an FP/CBRD turbo car it would probably be worth it.

Also, its really the last mods you can do on some cars before more power can only come from a bigger turbo.

edit: but the link I showed above, the guy showed 20whp/20wtq on average from the MAP rev 2 and a big ass teflon spacer.

Re: Ported/Aftermarket TB discussion
 

6G72 3.0 (my car) stock size is 60mm.
6g74 3.5 stock size is 65mm.

In case anyone was wondering. :P

Re: Ported/Aftermarket TB discussion
 

^ lol!

Re: Ported/Aftermarket TB discussion
 

On a DSM or evo 8/9 that use a BISS and ISC, I totally agree. On an evoX, the only form of idle control is the actuation of the butterfly, so these bigger TB's are actually very very driveable. Lomker has had one on his car for over a year now? It idles like a dream.

Re: Ported/Aftermarket TB discussion
 

I think 20whp for the bulk of the powerband on an aftermarket, stock-frame turbo would be what I would hope for, but WITH the TB, not just the IM (that makes no sense to me).

On a stock turbo car, peak power may not be affected much but I'd bet that the powerband would be improved similar to this test that was published a few weeks ago:

http://forums.evolutionm.net/evo-x-d...dyno-test.html

http://www.socalevo.net/gallery/albu...d%20test_1.JPG

Re: Ported/Aftermarket TB discussion
 

I also don't understand the appeal of such a large TB. A 64mm I can understand, a 75 seems a bit overkill for the amount of power 99% of us ever plan to make.

But again, I don't know much about Evo X's. It was mentioned larger TB's are good because idle control is done by opening the butterfly. Why does that make idle control easier? In my hollow mind, I'd think a larger butterfly would make idle more trickyas you're "gain" has essentially gone up. With a much larger opening, with every little change in butterfly angle, the percentage of difference in quantity of air making it past would be increased quite a bit. So your resolution wouldn't be as good anymore. Changing the butterfly by 1* on a 58mm vs. a 75mm is quite a difference in air quantity.

Again, just how my thinking works in my mind. Not that I'm right or wrong, i just find it interesting that a much larger TB would really offer better idle control simply because it's larger.

Re: Ported/Aftermarket TB discussion
 

I'm assuming the ECU just computes the airflow off the percentage that the butterfly is open? But then again you would need to compensate for the larger surface area, so I'm wondering how that works on Xs as well.

Re: Ported/Aftermarket TB discussion
 

I think Scheides was saying that a 75mm TB on the X has better idle control than on an 8/9 or DSM because it uses the butterfly valve. Not that going to a giant TB makes it have a better idle.

Re: Ported/Aftermarket TB discussion
 

And if that's the case, then I still don't understand why anyone on here would really want a 75mm TB. I'd think a stock 58mm would be plenty for most, and a 64mm upgrade may be a little bit reasonable, but 75mm seems like a waste of a mod.

Again, just my opinion :)

Re: Ported/Aftermarket TB discussion
 

I am not arguing with that at all. I already said the 64mm one seems plenty for anyone.

Re: Ported/Aftermarket TB discussion
 

High 5.

Re: Ported/Aftermarket TB discussion
 

This. All I was saying was that the idle control on the X is a lot better than the dsm & evo8/9 so running a bigger TB (or bigger cams) is less of a problem for driveability.

At what point the 75mm is actually going to be 'needed' or outperform a 64mm (and with what intake manifold behind it) is what I'd really like to know.

Re: Ported/Aftermarket TB discussion
 

Besides, you would probably want 3" piping to go with a 75mm TB, which once again is overkill for most everyone. It looked cooler though.

Re: Ported/Aftermarket TB discussion
 

Lol I bet, I've always had 2.5" piping but I bet 3" would look bad-ass as hell under the hood.

Re: Ported/Aftermarket TB discussion
 

I think I saw a test on evolutionm where they gained around 15whp switching from a oem TB to a Boomba. (was on a Magnus intake mani for both tests)

And IIRC, they did a full 3" IC pipe conversion after that and actually ended up losing power or staying the same. not sure exactly.