Community Forums

1996 Eagle · 11-24-2016, 07:17 PM

Looking to upgrade the air intake system on my 96 American Eagle, Want to upgrade to something less restrictive and with a replaceable element. Don't think the little hole that feeds the filter is big enough. Ideas?

NHRA225 · 11-25-2016, 06:40 AM

Research !
I've investigated after market Filters for my 92 8.3 over the years and in addition called Cummins Tech support and discussed CFM requirements for my Engine. They Strongly recommend staying away from after market open type filters. Mine has a Canister style filter which has a 4 in inlet and a 4 in outlet in addition to the inline flow meter installed on the outlet side. In my case I change my filter 2 times a year depending on mileage and conditions

Cat320 · 11-25-2016, 08:48 AM

This things are very complex and complicated. I keep it simple and buy OEM replacement items.

GlennLever · 11-25-2016, 10:15 AM

I agree stay stock.

Glenn

mackwrench · 11-25-2016, 10:26 AM

A motorcoach application is air filter is located behind rear drive axle. Dirt, dust etc...is blown up behind coach, at air cleaner intake. Buy a name brand, like Donaldson or Fleetguard, evaluate your driving conditions and replace accordingly.

The only way the "performance" filters work is to allow more air through, meaning less micron filtration. That's ok, but be aware that filter MUST be serviced more often. And very doubtful you'll notice any real performance difference.

1996 Eagle · 11-25-2016, 03:48 PM

Not really looking for any performance gains. Looking more toward Getting more air to hopefully drop the egt's some. When at the races last year I talked to a gut who had a 96. He said just opening the access door for the filter made a difference. Was a truck driver for 40+ yrs so maybe he knew what he was talking about. Going to try that before spending 400 on what they are calling a upgraded filter.

twinboat · 11-25-2016, 04:00 PM

Quote:

Originally Posted by 1996 Eagle

Not really looking for any performance gains. Looking more toward Getting more air to hopefully drop the egt's some. When at the races last year I talked to a gut who had a 96. He said just opening the access door for the filter made a difference. Was a truck driver for 40+ yrs so maybe he knew what he was talking about. Going to try that before spending 400 on what they are calling a upgraded filter.

More air equals more oxygen. More oxygen equals more power. That then creates more boost. More boost equals higher EGT.

mackwrench · 11-26-2016, 05:18 AM

What are EGT now?

1996 Eagle · 11-26-2016, 08:51 AM

Quote:

Originally Posted by twinboat

More air equals more oxygen. More oxygen equals more power. That then creates more boost. More boost equals higher EGT.

More air won't create more power unless more fuel is added with it(unless you are way over fueled already). leaning out the mixture some should lower egt's. Coach does fine pulling my car trailer but I live where 6% grades are common. Every way out of my area has one involved. Last trip out coming up hwy 58 in the Cascades ran it in 3rd or 4th at 2200 and egt's were at 1100. Oil temp went up to 250. Pushing it any faster the egt went up fast. Most around here have added bigger turbo's. Still learning the in's and out's of driving one.

twinboat · 11-26-2016, 09:34 AM

Quote:

Originally Posted by 1996 Eagle

More air won't create more power unless more fuel is added with it(unless you are way over fueled already). leaning out the mixture some should lower egt's. Coach does fine pulling my car trailer but I live where 6% grades are common. Every way out of my area has one involved. Last trip out coming up hwy 58 in the Cascades ran it in 3rd or 4th at 2200 and egt's were at 1100. Oil temp went up to 250. Pushing it any faster the egt went up fast. Most around here have added bigger turbo's. Still learning the in's and out's of driving one.

More air means more boost, if not reaching max. The fuel system senses boost and increases fuel to keep in correct range for power but no smoke.

mackwrench · 11-26-2016, 11:12 AM

No trying to start a peeing contest, but Understanding how an electronic controlled engine works..... air needed is based on throttle position, fuel injection timing and engine RPM. If you took the air cleaner completely off, you still have only the size of turbo inlet opening for air flow, unrestricted of course, so the filter is engineered to flow max air at max rated HP with the restrictions needed to clean the air before turbo.
As long as the air cleaner inlet is same size as turbo inlet there's no advantage to making it bigger.

ECM is in control of fuel, boost and HP using information from various sensors depending on throttle position.

If all your looking to do is decrease EGT, then add more cubic inches, horsepower or back out of throttle.

select55 · 11-26-2016, 11:27 AM

Quote:

Originally Posted by NHRA225

Research !
I've investigated after market Filters for my 92 8.3 over the years and in addition called Cummins Tech support and discussed CFM requirements for my Engine. They Strongly recommend staying away from after market open type filters. Mine has a Canister style filter which has a 4 in inlet and a 4 in outlet in addition to the inline flow meter installed on the outlet side. In my case I change my filter 2 times a year depending on mileage and conditions

you change your air filter two times per year? my gawd man how many miles are you driving? I changed mine after 6 years and 25K miles and it still looked like new
at 145$ for ISL air filter there is no way once a year for me never mind twice a year

NHRA225 · 11-26-2016, 12:46 PM

Quote:

Originally Posted by select55

you change your air filter two times per year? my gawd man how many miles are you driving? I changed mine after 6 years and 25K miles and it still looked like new
at 145$ for ISL air filter there is no way once a year for me never mind twice a year

My Older Mechanical 8.3C uses an AF1813 @ $47 bucs Ea: My Inlet is in the upper Roof at the rear- down into a plenum then into the Air Cleaner.
Last year 12 K miles- Year before last 16 K Miles. I service the entire Engine @ 10,000 miles- Just Me!

NHRA225 · 11-26-2016, 03:44 PM

Quote:

Originally Posted by mackwrench

No trying to start a peeing contest, but Understanding how an electronic controlled engine works..... air needed is based on throttle position, fuel injection timing and engine RPM. If you took the air cleaner completely off, you still have only the size of turbo inlet opening for air flow, unrestricted of course, so the filter is engineered to flow max air at max rated HP with the restrictions needed to clean the air before turbo.
As long as the air cleaner inlet is same size as turbo inlet there's no advantage to making it bigger.

ECM is in control of fuel, boost and HP using information from various sensors depending on throttle position.

If all your looking to do is decrease EGT, then add more cubic inches, horsepower or back out of throttle.

Does the OP have a mechanical or Electronic Engine ?
I would think that in 96 it would be Mechanical 6CTA 8.3 .

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