2 different types of air filter assemblies?

[AA_Ezra]

At the moment in cant remember what the actual stock air box is called for a price quote at local yard but. The one on my early is a little different from the late modle 944 i saw at the yard. The snorkel goes into the fender and there is a rubber seal that doesent acutaly seal but looks like its there to protect the snorkel once it bounces around.

On my car however the snorkle does not go into the fender it just kinda bends down before it reaches the fender.

Is this an updated snorkel? i'm sure it gets cold air the way it is but it seems like the setup at the yard would get even more cold air as its not in the engine compartment.

I have a cone filter on it now with a wilk chip and car already runs rich from the low temp fans and switch. thinking stock airbox might give a little more hp?


Off topic. This junk yard car also had what looks like a 3" header back exhaust with a Magnaflow Muffler with a stock looking tip. worth buying? I already have a duel tip muffler sounds good but it's not name brand.

[ernie9944]

What you got is probably a late air boxe model (86 & up) where Porsche deleted the snorkel going througth the fender (is the snorkel flair at the end instead of being ribbed)The early one for your car is this one with a rubber seal. BTW both type will work on you car.

[Wassabi]

This kind of relates to what is being discussed in this thread:

Upgrades??

I found it interesting that there are after market intakes that actually reduce HP due to sucking warm air from the engine bay.

[Cocacolakidd]

A good 3" exhaust is great for highly modified cars (Turbos and Superchargers). For a near stock NA it will reduce the torque developed by the engineered exhaust back pressure. While the 3" exhaust will reduce torque it will help on the high rpm h.p. - So this leaves a dilemma for the stop and go street driver - less torque and more high rpm h.p. or smaller 2 1/2 " exhaust for more torque and less on the top end...???

Is it worth the trouble for a street car - I my opinion no...

[AA_Ezra]

Thanks ernie yes the one at the junk yard is ribbed. but the snorkle in the picture is not like mine either. it does flare but it bends at a 90 Degree angle pointing downwards before its close to the hole with the rubber seal in the fender.

Maybe my car got a revised version from the dealer when it was a young pup?

[ernie9944]

[QUOTE=AA_Ezra;6229354]Thanks ernie yes the one at the junk yard is ribbed. but the snorkle in the picture is not like mine either.___ it does flare but it bends at a 90 Degree angle.

Jaime you got the late model version(flare with a 90 D bend).

[v2rocket_aka944]

Originally Posted by Cocacolakidd

A good 3" exhaust is great for highly modified cars (Turbos and Superchargers). For a near stock NA it will reduce the torque developed by the engineered exhaust back pressure. While the 3" exhaust will reduce torque it will help on the high rpm h.p. - So this leaves a dilemma for the stop and go street driver - less torque and more high rpm h.p. or smaller 2 1/2 " exhaust for more torque and less on the top end...???

Is it worth the trouble for a street car - I my opinion no...

Backpressure is always something you want to eliminate.

Exhaust velocity is what you want to keep up with smaller pipe diameters. Exhaust velocity leads to cylinder scavenging which leads to torque gains across the board.

Putting a 12" pipe off your headers would have no backpressure at all. But there would be no velocity either so the thing would drive and sound like ****.

[petrolhead611]

You will get more power out if you keep the exhaust gasses hot so explore getting a heavy ceramic coating on your headers.

[AA_Ezra]

I will have to put up a picture ernie. It's not rainy season here yet, but i can imagine if the snorkel went into the fender it would suck up water since it doesent have a rain collector. I might just get the snorkle as im sure the air from the fender will be colder and then change the snorkle back to the one i have now once rainy season starts.


In regards to the Exhaust everyone makes a good point, I should have expained my intentions a little better.

The Magnaflow muffler had some 3" exhaust section still attached, I really only wanted it for the muffler and was thinking if just getting it for that purpose only. and keeping as much stock sized piping as possible.

So in with wanting to keep the exhaust velocity up, I think Exhaust wrap on the headers maybe a more cost effective route with my current setup wich is other wise stock exhaust except for the dual tip aftermarket muffler( free flow, not sure)

[mytrplseven]

my 87 944 NA has the airbox with the snorkel going into the fender well with the rubber donut holding it in place. It isn't open to the water splashing up in the rain because it's behind some kind of bulk-head that is open to protected air somewhere in the same area. The good thing about this system is that it is a "cold air" inlet system and has really good airflow. I chose not to go with a cone because of this. A K&N filter in the "BOX" might help a little with airflow but hot air around the engine is self defeating.

[ernie9944]

[QUOTE=mytrplseven;6233032]my 87 944 NA has the airbox with the snorkel going into the fender well with the rubber donut holding it in place. It isn't open to the water splashing up in the rain because it's behind some kind of bulk-head that is open to protected air somewhere in the same area.

The early inner mud guard #12 (bulk head)also act as a spoiler brace.

[AA_Ezra]

Yeah my car does not have splash gardsnon either side wish I could use the late style, they are more modernized like a new car