maf and throttle body diameter

[Bfan]

I have a G-meter that measures 0-62 mph among other things. It used to give me 5.8 sec average of several runs before mods on my '01 S. I now get 5.2 sec average after modding. From what I have found out on the net this means that my max HP was 250 (figures), and is now 285.

My mods are Fabspeed catless headers, 997 plenum, 74 mm TB, and desnorked.

So I am really happy and I have this thread and all the fine members of this forum to thank...

[AndyA6]

Originally Posted by Bfan

I have a G-meter that measures 0-62 mph among other things. It used to give me 5.8 sec average of several runs before mods on my '01 S. I now get 5.2 sec average after modding. From what I have found out on the net this means that my max HP was 250 (figures), and is now 285.

My mods are Fabspeed catless headers, 997 plenum, 74 mm TB, and desnorkel.

So I am really happy and I have this thread and all the fine members of this forum to thank...

Very nice! Thank you for your feedback.

Again, mine is running perfectly ok as well.

[Homeboy981]

Here's a pic or two. Will have to compile parts list.

You start with a HUGE CONICAL filter…(this was Stage1-notice MAF is by the filter)


Then move the MAF so that it is practically sitting on the Throttle Body (Stage2) - using the Honeycomb to straighten the airflow before the MAF & TB.


It is 4" until it drops to 3.5" at TB.

Enjoy! I sure am!

[The Radium King]

homeboy - do you have that filter enclosed yet? otherwise it's drawing hot air from the engine compartment. I did a quick search and here's some math for you:

http://www.mazda3club.com/showthread.php?t=18386

[The Radium King]

cool with the half second increase in zero to 60 times. also like the idea of filing the TB; the 1/8" lip on that thing always seemed wrong to me.