Nissan 370Z Forum

Nissan 370Z Forum (http://www.the370z.com/)
-   Intake/Exhaust (http://www.the370z.com/intake-exhaust/)
-   -   Air flow test (drop-ins) (http://www.the370z.com/intake-exhaust/91221-air-flow-test-drop-ins.html)

FuTuRe is Z 06-17-2014 01:55 AM

370z Dyno with Z1 PowerMod : Fast Intentions TDX + HFC - YouTube

You can still make power with MAF tubes + Drop ins, here is a dyno to prove it. I will be doing the same modifications, except I will also be getting the Z1 headers and test pipes instead of HFCs. I'm confident I can achieve 330whp!

synolimit 06-17-2014 04:27 AM

Quote:

Originally Posted by FuTuRe is Z (Post 2861831)
370z Dyno with Z1 PowerMod : Fast Intentions TDX + HFC - YouTube

You can still make power with MAF tubes + Drop ins, here is a dyno to prove it. I will be doing the same modifications, except I will also be getting the Z1 headers and test pipes instead of HFCs. I'm confident I can achieve 330whp!

dont cheat. SAE or nothing :tup:

Roddy1 06-18-2014 12:25 PM

There is a dyno sheet here from a member showing the gains from the drop ins alone. They make 5hp and then 1hp extra with the MAF tubes.

They added an axle back and combined got a peak hp gain of 9.5hp total for the drop ins, MAF tubes and axleback.

FuTuRe is Z 06-28-2014 12:09 AM

Quote:

Originally Posted by Roddy1 (Post 2863773)
There is a dyno sheet here from a member showing the gains from the drop ins alone. They make 5hp and then 1hp extra with the MAF tubes.

They added an axle back and combined got a peak hp gain of 9.5hp total for the drop ins, MAF tubes and axleback.

And then you need a tune to make an additional 12whp.:happydance:

That's all it takes for 305 ish whp.

FuTuRe is Z 06-28-2014 01:09 AM

2013 Nissan 370z dyno run - YouTube

For those who don't believe in tune + exhaust and maf tubes = 300whp

Jordo! 06-28-2014 01:30 AM

Quote:

Originally Posted by cruzthepug (Post 2860009)
I put in the K&N filters and ran my test.
http://img.tapatalk.com/d/14/06/15/e7y6ygyp.jpg
I was really surprised with the numbers, so much so that I put the OEM filter back in and ran the test again.
http://img.tapatalk.com/d/14/06/15/y8unagug.jpg
Kinda confirmed the K&N numbers.

I think this needs more testing and another person to take the screen shots (so I'm not doing it while driving) to try to be a little more accurate. I think I also want some cruising numbers at about 80mph in 6th.


Sent from my iPhone using Tapatalk

There's a lot of variance across runs... I think try and figure out a way to get consistent conditions for 10-20 sweeps for each set up, then report the means and SD's. Even then it may be inconclusive, but at least a lot of the random variance will be accounted for...

cruzthepug 07-10-2014 11:17 AM

We had a corporate environmental guy in the office yesterday doing some sound studies and I showed him my air flow numbers and he agreed with the finding. When sucking air when the air flow increases the numbers will lower. The filters are not restricting so that allows the air to flow more freely therefore having less pressure. He said if you were pushing the air, then the numbers would be opposite.


Sent from my iPhone using Tapatalk

Jordo! 07-10-2014 04:58 PM

Quote:

Originally Posted by cruzthepug (Post 2890774)
We had a corporate environmental guy in the office yesterday doing some sound studies and I showed him my air flow numbers and he agreed with the finding. When sucking air when the air flow increases the numbers will lower. The filters are not restricting so that allows the air to flow more freely therefore having less pressure. He said if you were pushing the air, then the numbers would be opposite.


Sent from my iPhone using Tapatalk

Ohhhh so those numbers correspond to pressure drop/resistance to flow? Then that makes sense -- I had misunderstood them.

Is that also the case for lb/min?

Can you read voltage?

cruzthepug 07-10-2014 05:07 PM

Quote:

Originally Posted by Jordo! (Post 2891221)
Ohhhh so those numbers correspond to pressure drop? Then that makes sense -- I had misunderstood them.



Is that also the case for lb/min?


I would assume it is. Since the measurements are taken at the same point, less pressure = less lb/min but that means that the K&N filter allow for a lot more air flow.


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