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Shane@DBPerformance
06-17-2010, 08:06 PM
There is no reason the MAF shouldn't max in a housing close to stock size. Mitsu wouldn't put some crazy oversized setup on the car. With a hotwire setup you want the MAF diameter to be somewhat close to what you need, the bigger you go the worse driveability gets and less resolution you have in the low throttle areas where you need it. All the Mustang, Subaru, Nissan, Audi, etc guys goto bigger MAF housing/pipes when they make more and more power, it isn't anything weird or new. For the Mustangs you can buy calibrated MAFs with flowsheets and the numbers that you need to plug into the MAF scaling tables in the ECU to make it easier to tune.

Also remember that someone might not notice the MAF is maxed and just try to over compensate for it by adding fuel to the main fuel table.
Murlo26
06-17-2010, 08:08 PM
ETS does not tune cars.

Read the mod list and note the intake size and intercooler size. The dyno chart looks like shit, but you get the idea.

http://forums.evolutionm.net/evo-x-dyno-results/477893-ets-makes-615hp-26psi-using-our-pt6765-t3-turbo-kit.html

Apparently that car is on speed density Shane, that is what Michael at ETS told me...that is their shop car.

Here is what he sent me:

I spoke with the foreman and we could build one, we would just need the flange. We actually build a 4.0" intake pipe for our turbo kits and haven't had a problem with airflow on the stock MAF. You can check the evolution x dyno section. We run speed density on our car, so it's not a good example since it doesn't use a MAF.

The foreman is actually looking at building a custom MAF adapter housing that's 3.5" since it's going to be tough to snake a 3.5" pipe all the way through. The custom CNC maf adapter housing and billet 5" tapered filter unit would be a one piece unit and the price would be around $250.00 for the setup. We would be looking at around 3-weeks for production.
Murlo26
06-17-2010, 08:09 PM
There is no reason the MAF shouldn't max in a housing close to stock size. Mitsu wouldn't put some crazy oversized setup on the car. With a hotwire setup you want the MAF diameter to be somewhat close to what you need, the bigger you go the worse driveability gets and less resolution you have in the low throttle areas where you need it. All the Mustang, Subaru, Nissan, Audi, etc guys goto bigger MAF housing/pipes when they make more and more power, it isn't anything weird or new. For the Mustangs you can buy calibrated MAFs with flowsheets and the numbers that you need to plug into the MAF scaling tables in the ECU to make it easier to tune.

Also remember that someone might not notice the MAF is maxed and just try to over compensate for it by adding fuel to the main fuel table.

I believe you are right shane, i am going to get a 3.5" intake for sure, I am just relaying information right now.

You are the Yoda...i am...maybe an imperial guard at best, lol.
FattyBoomBatty
06-17-2010, 08:38 PM
You are the Yoda...i am...maybe an imperial guard at best, lol.

Dreaming big, are we?
http://27.media.tumblr.com/tumblr_kpescyGOLd1qzn52fo1_400.jpg
Shane@DBPerformance
06-17-2010, 08:49 PM
We could do speed density on yours...
Murlo26
06-17-2010, 09:36 PM
We could do speed density on yours...

$$$$$ I am guessing...I think the only option on the X is the cosworth one and motec.
mlomker
06-17-2010, 10:04 PM
The good news is that CBRD is interested in making an intake for us. He implied that they've already started prototyping one this evening.

I'm pretty sure I have the highest whp BBX car to date so he wouldn't want to hold me up. :)
Murlo26
06-17-2010, 10:08 PM
The good news is that CBRD is interested in making an intake for us. He implied that they've already started prototyping one this evening.

I'm pretty sure I have the highest whp BBX car to date so he wouldn't want to hold me up. :)

Actually even given your constraints and problems, 430 is the highest i have seen when calculating in dyno differences. GST's reads at least 20-30whp higher depending on the power level, and they haven't broke 450 yet with one.

You need more hold ups though...so i can catch up, lol.
mlomker
06-18-2010, 01:19 PM
No real news here, just more confirmation. The additional airflow mods on my car vs a stock motor & manifolds probably account for the difference.



Approx 450whp on our Mustang dyno.

Have you had any cars in this power range run out of MAF?

My car seems to have maxed out an AMS 3" intake at 25-26psi @7500 rpm.

This one was 4.95v at 8100rpm, boost was 27psi at that point. AEM intake.

26psi seems a bit low to be hitting 5v
scheides
06-18-2010, 01:33 PM
Good deal!