Ahsai

Very nice and healthy. Based on my computation, your VE is 116%, which is awesome!

Mbren1979

I have brought home my Snap On Verus. I can get screen shots with it. It has a much higher sample rate and amazing graphing. The only problem is for some reason with porsche it wont put all the pids on one screen so i cant always get what we want to see at the same time. It puts them into like 4 different groups.

Ahsai

That would be very interesting to see. I can only get Durametric to return ~6 readings per second for each of the sensor I picked.

Mbren1979

Stock box



fabspeed

Mbren1979

Realized thoses pics might be confusing. Both have the measuring tape inserted where the MAF goes in. Stock box has a rubber boot so i could remove it and easily get a pic of the cross section. Because of the design of the fabspeed it is impossibe to get an inside view of the cross section so the pic is taken from where the maf goes in.

Ahsai

So they have the same diameter? Hard to tell from the pics.

Mbren1979

looks like it to me!

Mbren1979

Happy to see my camshaft deviation @ 3.31 bank 1 and 1.43 bank 2.

And oddly enough i can only measure the MAF in voltage and kg/hr. No g/s and snap on

Ahsai

Very healthy. Yes, Porsche DME only reports the MAF in voltage and kg/hr natively if queried by a Porsche/equivalent scanner. You can see my plots in post #134 are also in kg/hr. Mine is a 3.8 and yours is pulling 280g/s or 1,000 kg/hr!

Mbren1979

Ok. This data provided by snap on.

RPM: 7294
MAF: 994 kg/h (276 g/s)
IAT : 96.8
ALTITUDE CORRECTION FACTOR : 1.01
OUTSIDE AIR TEMP : 74F
COOLANT : 188F
OIL TEMP : 194F

Graph was smooth as can be and the highest recorded MAF was just before closed throttle @ 7294 rpms.

also monitored on torque pro and results were very very close.

and as previously posted - highest numbers were obtained at the 2nd to 3rd shift not 1st to 2nd.

Ahsai

Very nice. Wish I had roads here for a 120mph pull. Oh wait, 2nd to third. That's what I've been doing too.

You mentioned you had Feebspeed intake and exhaust. Do you have the stock headers?

Mbren1979

Im just confused though. The purpose of this thread was horse power possibility. Doing the math. That put my car 360 to 370hp unless i am missunderstanding this thread. While i agree my car is quick. Its still a factory 04 c4s cab built with around 320 horse. Yes i got fabspeed maxflow mufflers, fabspeed comp intake and RSS underdrive pulley. But potentially 40hp from that?

Mbren1979

Yes. Stock headers and cats.

Porschetech3

Yes you are correct, the purpose of the thread is horsepower potential Mhpp using Mass Air Flow . The math doesn't lie. The Mhpp (corrected for weather) will be higher than manufactured rating of 320hp by about 5% because there is "no Loss" from oil pumps, scavenge pumps, friction, Alt, water pump, PS, and of course especially drivetrain.

So the bone stock 3.6 M96 with factory rating of 320hp will have a Mhpp of 336Mhpp because there are no "mechanical power loss" and only "thermal power loss".

Your Mass air flow of 282g/s / .75 = 376Mhpp, that's a 40hp increase and is why we are very interested in evaluating the fabspeed intake as to how much is actual increase in Mass air flow and how much is "over-reporting" due to smaller cross-section and not being calibrated to the MAF sensor.

Is that metal sleeve on the fabspeed intake going all the way down to the cross-section? Due to the design and position of the sensor hole, it may be difficult to measure the cross-section.

It's just like coming off a chassis Dyno with an impressive number on a near stock car and wondering where that number came from !!

Mbren1979

Yes it is.....guess the fabspeed claim is truthfull. But i am sure there will still be people to say its a lie