aftermarket air filter question

[mikeymuscles82]

i just bought an ebay air filter and it did not come with directions. I have a 99 eclipse gst spyder and when you remove the stock airfilter where the MAS is there is also 4 bolts with a mesh screen. Do i remove the mesh for more airflow or leave it? thanks for you help?

 

[crimsondragon]

You can run as big of an air filter as you want but the stock MAS is pretty restrictive as it is. You might as well switch over to a GM MAF which is 3.5 inches.

 

[rich3389]

You can run as big of an air filter as you want but the stock MAS is pretty restrictive as it is. You might as well switch over to a GM MAF which is 3.5 inches.

since when is the stock mas restrictive, I can see maybe at around 400 hp....

 

[crimsondragon]

A guy on here made a comparison of his logs between stock MAF and GM MAF. He supposedly logged about 3lbs/min more with the GM MAF. I find that a restriction.

 

[Texas_GST]

Thanks guys I have heard alot about the GM sensor upgrade and I cant see how it would be a bad idea. Like I said I have the Evo III 16g and I was just wanting to find out if it will get all the air it wants through the filter. I never thought about the MAF being restrictive though. Maybe it wont be a problem though because she is my daily driver and the max boost I run is around 17-21 psi and thats only when I wanna race

 

[rich3389]

A guy on here made a comparison of his logs between stock MAF and GM MAF. He supposedly logged about 3lbs/min more with the GM MAF. I find that a restriction.

And what was his setup? I highly doubt he had anything like a t25 or 16g. With a bigger turbo flower way more air than the op it may be a restriction.
If anything, the OP's air filter adapter is more restrictive than the mas, look at that neckdown on that thing!
I would suggest getting the vibrant adapter, with a 4.5 inch filter adaptor, considering the size of the stock mas is a 4.5 inch oval.

 

[2gGSX]

A guy on here made a comparison of his logs between stock MAF and GM MAF. He supposedly logged about 3lbs/min more with the GM MAF. I find that a restriction.

Switching to a GM MAF also introduces a large amount of error in airflow metering, unless he specifically calibrated it using a MAP sensor or wideband. 3 lbs/min is more than reasonably within said range of error.

Thanks guys I have heard alot about the GM sensor upgrade and I cant see how it would be a bad idea. Like I said I have the Evo III 16g and I was just wanting to find out if it will get all the air it wants through the filter. I never thought about the MAF being restrictive though. Maybe it wont be a problem though because she is my daily driver and the max boost I run is around 17-21 psi and thats only when I wanna race

The stock MAS will be more than enough for your setup--don't worry about it.

 

[dsm-onster]

A guy on here made a comparison of his logs between stock MAF and GM MAF. He supposedly logged about 3lbs/min more with the GM MAF. I find that a restriction.

Was this pboglio?

 

[macmade22]

I have a 1997 GST, I have a Injen short ram air intake system, I need a replacement air filter I have been through 3 different types, all are to small? I have measured the inlet size at 4.5'', the ring around it is 5.0'', the base is 6 3/4''. the lenth is 5.0''. I ordered the same thing from Injen online and it was to small???? I am ready to rip it out and buy a whole new intake system , but before I do maybe someone can tell me what replacement filter size I need. or if I am just dumb and measuring it wrong, thank you

 

[macmade22]

done that, the largest is 3.5''

 

[crimsondragon]

Was this pboglio?

Don't recall. If you can find the thread, I can remember if it's the same one.