Suggestions For Airbox

BLS · Feb 17, 2002

I have the K&N FIPK (air box and filters) on my 2001 GTS. So, does Gary Lashinsky... our local Viper Club President.

Give Larry Macedo at Performance Motorsports a call... he installed both of them.

Larry Macedo
Performance Motorsports
http://www.performancemotorsportsllc.com
407-366-0366

Matt M PA · Feb 17, 2002

It was my understanding that the K&N air intake offered no increase in power. If you look at the restriction and bends of the tubes, you can see why. By removing the rain baffle from a stock airbox, and installing smooth hoses you will get a straighter, more direct flow of air. (And it's much cheaper). If you look into the NACA scoop on my car...you see straight back to the filters.

John Stuttle · Feb 17, 2002

Her is how I resolved the problem -

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Motor City Mad Man · Feb 17, 2002

John Stuttle, is that the Hennessey carbon fiber airbox? Looks nice but a little pricey from what I remember. Also, to anyone out there, how much of a HP increase will taking out your rain baffles give you? I though I remember hearing about 5 hp, is that about right? I was thinking of doing it myself, but if it is only 5 hp maybe I will forget about it.

Paul Fischer · Feb 17, 2002

There is a lower cost way to achieve increased airflow besides a high dollar carbon fiber piece of art. The rear of the airbox, where the tubes to the manifold mate can be replaced by two scoops that you might use for say brake ducts. You can find them in the high performance cataloges or your local speed shop, just cut them down and seal them with JB Weld to the dimensions of the rear of the airbox surround. Conveniently the size that fits the airhoses happens to be the correct dimension to fit the rear surround of the airbox. Place them in the surround that clips to the main box, the surround provides the structural integrity. Do a clean job and it looks very nice if not as elegant as John's top drawer setup. The advantage comes from the scoop obstructing less of the area behind the filter so that greater airflow can be achieved, I recall 5-7 h.p. gains as the general result with K&N's. I'm sure a few of the old timers from the early GTS days still run this setup, it was common here in Texas. Could someone post a pic of this cost effective solution?

If you remove your rain baffle do not drive in the rain. Don't even think about it. If it rains like it does here in Texas or you catch a splash you are looking at a new motor after a very wet walk home.

John Stuttle · Feb 17, 2002

Yes it is a Hennessey carbon fiber airbox. Pricey but a nice addition that is not too common. - john

GTS Dean · Feb 18, 2002

The K&N kit is junk. The HMS box is beautiful, and it makes horsepower the faster you go. I noted at least 4mph on the front straight at Texas World.

The rain baffle delete is less than 1/2 of the gain. Like Paul said, the area behind the filters is probably more important than the area ahead of them. Look at the difference between Tony's and John S's boxes behind the filters. The only thing better would be 2 NACA ducts, side-by-side in front of the airbox.

Wing King · Feb 18, 2002

Yea, Mad One...... I'm lurkin here. I hear ya! You might want to check your e-mail! Just trying to be a pal and help ya out!

John Myrick · Feb 19, 2002

<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Matt M, PA:
It was my understanding that the K&N air intake offered no increase in power...

<HR></BLOCKQUOTE>

I used the K&N set-up on an otherwise stock 97 GTS and saw +20 RWHP. Stock - 404 RWHP, after K&N - 424 RWHP

Bill/APEX Motorsports · Feb 19, 2002

We did a back-to-back dyno test on our Dynojet using most all of the airbox/air filter setups out there and found the K&N airbox to the be the _least_ effective. (It lost 5hp compared to the stock airbox w/ K&N filters!) Air likes the straightest path in and out of an engine, and the K&N cone filters allow air in only from the sides. The curved tubing from the filters to the throttle bodies don't help anything either.
Bang for the buck, the stock airbox with filters (K&N or S&B, we carry both!) is by far the best value. We further modify the front and rear airboxes for more flow, but you'll likely only see a gain with those mods if the car is raced or already has heads/cam/intake/etc.

Marc Lublin · Mar 31, 2002

Hey Gary,
Nothing against you, but isn't a huge coincidence that John can no longer post here and now you registered to sing the praises on the HMS airbox on a thread that hasn't seen any action for over a month? Give me a Fuc*in break! John if it's you, just go away! Gary if it's you, just realize that the guy you make these things for is a thief and move on because you will probably be his next victim.

Sniper · Mar 31, 2002

Marc-

That's funny cause I was thinking the same thing! Get a different # and different post name and keep ripping people off!

Ron · Mar 31, 2002

918 area code is Tulsa, OK.

GTS Bruce · Mar 31, 2002

I like that air box and the front fascia.Hope his suppliers come on the board and sell direct. Bruce

Suggestions For Airbox

BLS

Enthusiast

Matt M PA

Enthusiast

John Stuttle

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Motor City Mad Man

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Paul Fischer

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John Stuttle

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GTS Dean

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Wing King

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John Myrick

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Bill/APEX Motorsports

Enthusiast

Marc Lublin

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Sniper

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Ron

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GTS Bruce

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