Why is the DRY filter from rotofab is out performing the oiled?

elvicdesonora · 02-25-2017, 12:38 PM

Does anyone know why the dry filter has better HP gains than the oiled? The oiled has better airflow, so why?
My thought are that probably the LT1 doesnt need the extra air flow from the oiled and the engine performs better with less air. car stock

reeper · 02-25-2017, 01:51 PM

I can only speculate but a little more airflow through the pores of the filter? vs having the pores condensed by oil.

Baker · 02-25-2017, 04:04 PM

I have heard that the oil of an oiled filter messes with the mass air flow sensors readings thus could impact the performance. I do not know how true that is just what I heard.

Roto-fab 1 · 02-25-2017, 04:19 PM

I will try to find the thread, but a forum member tested both filters on a flow bench and the dry filter did flow more air than the oil

Michael

BowtieRocket · 02-25-2017, 04:23 PM

My oiled filter, different brand

, hasn't caused any performance issue to any sensor or otherwise. The difference in dry vs oiled is pretty minimal

BowtieRocket · 02-25-2017, 04:29 PM

The oiled filter also picks up more of the finer dust/dirt particles here in the SW I think. I clean mine at least every oil change, sometime sooner like when we have dust storms...

born-to-fish- · 02-25-2017, 10:53 PM

Oiled filters only become a problem if the owner over-oils it. When done properly, there is no oil loss into the intake pipe and MAF sensor.

elvicdesonora · 02-26-2017, 02:47 PM

Ok great thanks all of you guys, I"ll be ordering a dry filter soon. Have a good one !

EFI Tuning · 02-26-2017, 07:39 PM

I would highly recommend the sound delete tube option as well if you are going with RF. It cleans up the engine bay.

You will not have any buyer's remorse with RF. We sell their intakes, and only their intakes, for a reason on this platform.

Tim

Roto-fab 1 · 02-27-2017, 10:26 AM

Quote:

Originally Posted by EFI Tuning

I would highly recommend the sound delete tube option as well if you are going with RF. It cleans up the engine bay.

You will not have any buyer's remorse with RF. We sell their intakes, and only their intakes, for a reason on this platform.

Tim

Thanks Tim. Your opinion means alot to us!

Michael

Sledgehammer70 · 02-28-2017, 05:02 PM

Roto fab has proven to be amazing in my testing compared to other brands. I have also moved to the dry filter which on the dyno showed an increase of 2.2hp consistently. Which is odd as oiled has typically shown gains between the 2 different types.

Roto-fab 1 · 02-28-2017, 06:02 PM

Quote:

Originally Posted by Sledgehammer70

Roto fab has proven to be amazing in my testing compared to other brands. I have also moved to the dry filter which on the dyno showed an increase of 2.2hp consistently. Which is odd as oiled has typically shown gains between the 2 different types.

Do you plan to share some dyno sheets of the CAI comparison? We look forward to seeing your results!

Michael

David Gordon · 01-02-2023, 06:48 AM

Quote:

Originally Posted by Baker

I have heard that the oil of an oiled filter messes with the mass air flow sensors readings thus could impact the performance. I do not know how true that is just what I heard.

I put a March ram air kit on my Mustang Cobra and the force from the added air flow pushed the oil off the filter and almost left me stranded, Completely ruined my mass airflow sensor and voided my car motor warrenty!!!

ZapperZ · 01-03-2023, 05:07 PM

Why no dry filter available for Big Gulp?

02-25-2017, 12:38 PM	#1
elvicdesonora Victor H. A. E Drives: Camaro 2016 2 SS Garnet Red Join Date: Jul 2016 Location: mexico Posts: 26	Why is the DRY filter from rotofab is out performing the oiled? Does anyone know why the dry filter has better HP gains than the oiled? The oiled has better airflow, so why? My thought are that probably the LT1 doesnt need the extra air flow from the oiled and the engine performs better with less air. car stock __________________ 16 Camaro SS. 12 Charger R/T

02-25-2017, 01:51 PM	#2
reeper Drives: 2010 HD D/A, 2015 Z06, 2016 2SS Join Date: Aug 2016 Location: Central WI Posts: 503	I can only speculate but a little more airflow through the pores of the filter? vs having the pores condensed by oil. __________________ 2016 Hyper Blue A8 2SS GM Bodykit: Black MRR 017 wheels: Black OEM Blackout tail-lamps OEM SEMA Grille 35% window tint Black glow-tie BMR Suspension (Pretty much everything) ACS rear-deck spoiler Rotofab CAI Lolly-pop red rotors by Madison Powder Coating

02-25-2017, 04:04 PM	#3
Baker Drives: 2010 camaro RS,2017 camaro 1Le Join Date: Mar 2016 Location: Charlotte, NC Posts: 195	I have heard that the oil of an oiled filter messes with the mass air flow sensors readings thus could impact the performance. I do not know how true that is just what I heard. __________________ 2017 camaro 1le ROTO fab, Ported MSD, Ported 95mm tb, 2in TSP catless longtubes, flowmaster x-pipe, flowmaster American thunder npp, flex fuel,

02-25-2017, 04:23 PM	#5
BowtieRocket Drives: 2016 Camaro 2SS- M6 Join Date: Sep 2016 Location: Albuquerque Posts: 1,133 View My Garage	My oiled filter, different brand , hasn't caused any performance issue to any sensor or otherwise. The difference in dry vs oiled is pretty minimal __________________ 2016 Camaro 2SS M6- Garage

02-25-2017, 04:29 PM	#6
BowtieRocket Drives: 2016 Camaro 2SS- M6 Join Date: Sep 2016 Location: Albuquerque Posts: 1,133 View My Garage	The oiled filter also picks up more of the finer dust/dirt particles here in the SW I think. I clean mine at least every oil change, sometime sooner like when we have dust storms... __________________ 2016 Camaro 2SS M6- Garage

02-25-2017, 04:19 PM	#4
Roto-fab 1 Drives: 16 Camaro SS w/ Roto-fab CAI Join Date: May 2009 Location: Arizona Posts: 2,682	I will try to find the thread, but a forum member tested both filters on a flow bench and the dry filter did flow more air than the oil Michael

02-25-2017, 10:53 PM	#7
born-to-fish- Drives: Fifty 2SS Vert Join Date: Dec 2009 Location: That rock next to Vancouver Posts: 355 View My Garage	Oiled filters only become a problem if the owner over-oils it. When done properly, there is no oil loss into the intake pipe and MAF sensor.

02-26-2017, 02:47 PM	#8
elvicdesonora Victor H. A. E Drives: Camaro 2016 2 SS Garnet Red Join Date: Jul 2016 Location: mexico Posts: 26	Ok great thanks all of you guys, I"ll be ordering a dry filter soon. Have a good one ! __________________ 16 Camaro SS. 12 Charger R/T

02-26-2017, 07:39 PM	#9
EFI Tuning Drives: 2016 Camaro SS Join Date: Oct 2016 Location: Mount Dora, FL Posts: 792	I would highly recommend the sound delete tube option as well if you are going with RF. It cleans up the engine bay. You will not have any buyer's remorse with RF. We sell their intakes, and only their intakes, for a reason on this platform. Tim

02-28-2017, 05:02 PM	#11
Sledgehammer70 Lethal Camaro Drives: 16 2SS, 71 Std, Suburban RTS Join Date: Jun 2013 Location: Temecula, CA Posts: 3,855 View My Garage	Roto fab has proven to be amazing in my testing compared to other brands. I have also moved to the dry filter which on the dyno showed an increase of 2.2hp consistently. Which is odd as oiled has typically shown gains between the 2 different types. __________________ Thanks My Build Thread \| Lethal Garage YouTube \| Lethal Camaro IG \|

01-03-2023, 05:07 PM	#14
ZapperZ Drives: 2018 ZL1 1LE 2022 GMC AT4 HD Join Date: Dec 2014 Location: Valparaiso,Indiana Posts: 284	Why no dry filter available for Big Gulp?

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