Dirty Howie

I bought a stock filter but it has a manufacture date of 2005 (clean one). It is different at one end than the 2008 filter (dirty one). They are both the same at the other end.

Looks like the filament ends on the 2005 are open not closed like the 2008.

Question is: Will the 2005 restrict air flow compared to the 2008 ??

Side by side


2008


2005


Both same at other end



DH

Dirty Howie

Anybody ........... ?????

MarkRx

here ya go... don't get too wrapped up in the drama, it's a 3 year old post

http://forums.corvetteforum.com/c6-t...same-pics.html

Dirty Howie

Thanks, I'll check it out.


DH

Dirty Howie

So according to your pictures the one with the open filiment ends is th LS7 and I'm running around with a LS3 in my car


DH

AzDave47

I've got the LS9 air filter element (PN 25940997) and had no installation problems. The Z picked up 4MPH in the MM last October over my April run (173.5 vs 169.4).

The changes in the car in between: NT-05's replaced OEM tires, Coleman lightweight two-piece front rotors, EE PCV catch can and the LS9 air filter.

whatcop?

You guys really just need to get a K&N filter. I popped the one out of my ZR1 which was still brand new and threw in a K&N. Definitely could feel a little difference.

AzDave47

Some of us would just as soon not have oil going into the intake. That is one of the reasons I got an EE PSV system catch can, too. The ZR-1 filter flows more air than the stock engine can use (good to 800+HP).

whatcop?

I don't know who came up with that figure but that cannot be right.

1 CFM = 28.328 l / min

So the stock ZR1 filter is figured at 850 CFM.

850 x 28.328 = 24,078.8 liters/min

Take the 24,078.8 and divide it by 7.0 liters. This will give you 3,439.82. That is the rpm at which your filter lost efficiency if your motor was actually gulping up 7 liters per revolution.

Shoot lets say we are only capable of using half of our motors. So take 24,078.8/3.5 = 6,879.65 rpms would be the inefficiency point.


The stock 90mm throttle body will flow 1170 CFM. The K&N flows 1100 CFM. Sooooooooo you do the math.

Dirty Howie

Why don't you sell me your ZR1 at a good price


DH

Dirty Howie

So know one can tell me which filter pictured above is better to use ??


DH

AzDave47

Not sure where you came up with the 850CFM for the ZR1, but Katech did the development work on the ZR1 filter with Donaldson and determined it will support 800+HP which is way above what our Z06's make. I think I'll take Katech's research over your math.

AzDave47

I don't know how much air the LS3 filter flows, but the LS9 filter flows 38% more air than the LS7 filter per Katech's R&D with Donaldson.

whatcop?

http://forums.corvetteforum.com/c6-z...e-ls7-ais.html

whatcop?

http://www.corvettels7.com/Halltech%...Comparison.pdf

Dirty Howie

Did they make C6Z06 filters in 2005 ???


DH

Dirty Howie

http://i714.photobucket.com/albums/w...rx/filters.jpg



Dave does the one on the left look like your LS9 filter. Does the middle one look like your old LS7 filter.

Doesn't look like the LS9 is the same size as LS7 and why the black grating ???


DH

AzDave47

OK, from this we know what the pressure drop is at 850CFM for the LS7 and LS9 air filters. Do you know what the pressure drop was on the K&N when they said it flowed 1100CFM? The LS7 and LS9 filters would flow 1100 CFM given enough pressure drop.

Minkster

Early '06 C6Zs were available for sale in the fall of 2005.

Dirty Howie

Thanks Rich

WSIR this Saturday


DH