2g mafs or hks super mega-flow

[Eclipst]

i'm having a tough time deciding on which intake to go with. i paid 40 bux for the hks super mega flow intake and pipe, but i can't seem to figure out which 1 would hold up on more boost. every 1g wants to convert to a 2g mafs. does the 1g mafs not hold alot of boost pressure?ie..25 lbs on a 20g. or is it just less restrictive? some 1 please explain.

thank you

 

[DSMJim]

There is no boost in your intake pipe so it doesn "hold any boost" your turbo simply draws the air though it. Many guys switch to the 2g mas because you can make more power on it before it runs out of resolution. It's also a little leaner to start so you don't have to compensate as much for larger injectors (thus not running your timing up as high because your not shorting air flow so much).

There is an HKS super mega flow system for a 2g mas (I have one) which looks good and performs well. Some people don't like them but I have done full passes down the track going low 12's with it in place and no problems. Generally the guys who don't like them are people who heard something about them 3 years ago from a buddys sisteers brothers friend who said his broke or whatever...

 

[mavisky]

There is no boost in your intake pipe so it doesn "hold any boost" your turbo simply draws the air though it. Many guys switch to the 2g mas because you can make more power on it before it runs out of resolution. It's also a little leaner to start so you don't have to compensate as much for larger injectors (thus not running your timing up as high because your not shorting air flow so much).

There is an HKS super mega flow system for a 2g mas (I have one) which looks good and performs well. Some people don't like them but I have done full passes down the track going low 12's with it in place and no problems. Generally the guys who don't like them are people who heard something about them 3 years ago from a buddys sisteers brothers friend who said his broke or whatever...

......you mean the infamous green mushroom of turbo death. I wouldn't worry about it.

 

[Eclipst]

cool... thanks for the info.

 

[diambo4life]

I have been running the HKS SMF on one of my Talons for three years now with no problems. Mine uses the 1G MAS though.

 

[lambertvr4]

I had the Super Mushroom 1G intake on my GVR4 (sm16G 18psi) and swapped to a 2GMAS. I couldn't tell a huge difference.

I wasn't too wild about the see through HK$ filter compared to the K&N, but that oil is unfriendly to MAFs too, so it's a lose, lose. I didn't have any issues with chewed up compressor wheels on the HK$, nor did I get funky MAF readings due to the K&N oil. Both worked fine for me.

 

[definitiveno]

go with the "Green" filter. They are tested and proven to remove all particles as small as 10 microns, K&N only filters to 15 microns.

 

[illeagle_talon]

Neither. GM MAS and VPC intake pipe is the way to go definitely.

 

[DsMWookie]

ditto...stuff some chicken wire on the inlet of the turbo like the big boys and roll with blow thru

 

[ken inn]

you will never get 25 lbs boost on a 1g mas. you will start getting mas overrun about 15 lbs boost. 2g mas is way better than 1g, even a hacked 1g. vpc is way better than a 2g mas. if you are going to run big cams, maft will probably be better, but i sure do like the vpc.

 

[pboglio]

I've run a 1g with a 1g maf, 1g VPC, HKS powerflow, K&N cone, 2g with 2g MAF, 2g with 2g VPC, HKS Megasuperduperflow, K&N FIPK, Huge K&N cone.

On two DSMs I've had debri the size of 80 grit sandpaper come thru the sealing edge of the HKS filter and about 180 grit that could be tapped out onto a white sheet of paper on the supposedly clean side of the filter. The HKS filter does not filter a damned thing except debri the size of pebbles. I've chewed up a good 14b running that piece of garbage HKS filter. Oil it, grease the sealing edges, nothing works.

K&N's let thru dust, nothing can beat an OEM paper filter. But it stops the boulders that the HKS passes right on thru. This is made worse by making the HKS undersized, which creates more vacuum which draws more crap thru it.

The HKS filter is restrictive, its undersized for anything over 450 cfm. Thats why you hear of guys pulling their HKS filters when they race. If the HKS wasn't restrictive, you wouldn't hear of people getting it sucked into the turbo inlet.

Your average K&N FIPK is sized for about 600 cfm and half the price. I run a K&N cone sized for 1000 cfm and I still get 24" H20 pressure drop thru it at 20 psi @ 5000-7000 rpm. Size your airfilter correctly and it will pass less debri thru it, go longer before needing to be cleaned, and will be much less restrictive and won't require being removed during a race.

K&N oil has no effect on Karman Vortex MAS sensors, that was with hotwire setups.

If WIX or somebody else sold a large cone style paper filter I'd go with that, but K&N would be my second choice. A 2g MAF is fairly unrestrictive and the driveability cannot be matched by the VPC.

 

[definitiveno]

I've run a 1g with a 1g maf, 1g VPC, HKS powerflow, K&N cone, 2g with 2g MAF, 2g with 2g VPC, HKS Megasuperduperflow, K&N FIPK, Huge K&N cone.

On two DSMs I've had debri the size of 80 grit sandpaper come thru the sealing edge of the HKS filter and about 180 grit that could be tapped out onto a white sheet of paper on the supposedly clean side of the filter. The HKS filter does not filter a damned thing except debri the size of pebbles. I've chewed up a good 14b running that piece of garbage HKS filter. Oil it, grease the sealing edges, nothing works.

K&N's let thru dust, nothing can beat an OEM paper filter. But it stops the boulders that the HKS passes right on thru. This is made worse by making the HKS undersized, which creates more vacuum which draws more crap thru it.

The HKS filter is restrictive, its undersized for anything over 450 cfm. Thats why you hear of guys pulling their HKS filters when they race. If the HKS wasn't restrictive, you wouldn't hear of people getting it sucked into the turbo inlet.

Your average K&N FIPK is sized for about 600 cfm and half the price. I run a K&N cone sized for 1000 cfm and I still get 24" H20 pressure drop thru it at 20 psi @ 5000-7000 rpm. Size your airfilter correctly and it will pass less debri thru it, go longer before needing to be cleaned, and will be much less restrictive and won't require being removed during a race.

K&N oil has no effect on Karman Vortex MAS sensors, that was with hotwire setups.

If WIX or somebody else sold a large cone style paper filter I'd go with that, but K&N would be my second choice. A 2g MAF is fairly unrestrictive and the driveability cannot be matched by the VPC.

all the testing ive seen showed even the k&n filtered far better than stock OEM equipment. The stocker showed to let through particles as large as 30 microns and yielded the most restrictions. OEM = Cheap production costs.

 

[definitiveno]

BTW the green filter does not use any type of oil to attract dirt and also has a life time warranty.