Need more air...lots more.

Scott & Heather · January 15, 2019, 03:56:16 PM

As some of you know, my 8v92TA has been flashed with a 500hp program and though I love the newfound power with my newly rebuilt turbo charger, it comes with some challenges. Right now I'm trying to find an air filter with a 2000cfm rating. They don't really exist. Donaldson has one but it doesn't have an entrance and exit tube. It pulls air in from all sides. Not an option in my sooty engine compartment. Already tried this and the filters clog within 300 miles from soot/oil spray dust. So I am wondering how to get this kind of air flow to the engine without splitting the intake tubing and running two filters. Because I have to run tubing to the side and top of the coach for intake air, this will be a complicated venture if that is indeed what I have to do. Any ideas? Currently running the ecolite 1550 com filter but it's not enough...

Geoff · January 15, 2019, 04:19:44 PM

Here's the deal-- I've been through this before and know what your problem is. Your engine compartment is full of soot from the previous leaky turbo, and the air filter is sucking it all up.

You need to have your engine compartment totally power washed to get rid of the soot or keep replacing air filters.

Scott & Heather · January 16, 2019, 05:19:46 PM

My engine has been cleaned and it still happens. The exhaust I think gets sucked into the underneath by low pressure and some of it ends up in the filter. My exhaust and intake are on the same side. My original intake system pulled air from the upper drivers side of the coach. That system was removed when the rear was rebuilt before I owned the coach. So now I just finished putting it back and I'm just looking for higher flow filter with a 7" entrance and exit

TomC · January 16, 2019, 05:25:51 PM

When I turbo'd my engine, I went from 6" to 7" from Donaldson. Just look at the Donaldson site and match what you need. Consider adding some sort of air intake stack. I have one built into my bus-I only have to replace the air filter element every 3 years (about 15,000 miles). Good Luck, TomC

Scott & Heather · January 16, 2019, 06:31:50 PM

Tom
I'm running the 7" ecolite. Most CFM of any closed filter and it's technically not enough. A turbo two stroke 8v92 set to 500 hp should have 2000 CFM.

eagle19952 · January 16, 2019, 09:31:09 PM

http://ph.parker.com/us/en/disposable-engine-air-filters/71338003

PART NUMBER: 071338003
SERIES: ECO-II
MAXIMUM FLOW RATE: 2000 cfm (54.1 m3/m)
OUTSIDE DIAMETER: 13.5 in/34.3 cm
LENGTH: 24.0 in/61.0 cm
INLET PORT CONNECTION TYPE: Side Inlet - 9.0" (22.9 cm) from base
FLOW RANGE: 1370-1950 cfm (38.8-55.2 m3/m)
OUTLET CONNECTION: 7.0 in/17.8 cm
INLET CONNECTION: 7.0 in/17.8 cm

luvrbus · January 17, 2019, 10:08:55 AM

The Detroit engineering bulletin xxxx, since I am not home and cannot reference the number for you, calls for 8 inch intake piping on your engine

Geoff · January 19, 2019, 08:05:40 AM

After reading that your exhaust is on the same side as the air intake, you need to move one or the other to the other side of the bus. Another possible solution is adding a stack to either one.

pabusnut · January 19, 2019, 08:51:02 AM

Scott,

I agreee with Geoff-- Dual 8" stacks right up to the roof line, with a big Eagle decal in the middle, and maybe a big US Flag on the tailgate! Your coach is too plain-- Almost Amish!

Steve T

buswarrior · January 19, 2019, 09:07:55 AM

Quote from: pabusnut on January 19, 2019, 08:51:02 AM
Scott,

I agreee with Geoff-- Dual 8" stacks right up to the roof line, with a big Eagle decal in the middle, and maybe a big US Flag on the tailgate! Your coach is too plain-- Almost Amish!

Steve T

Scott would have to change his preaching style, if he was to show up at a church with that on the back...!

happy coaching!
buswarrior

Scott & Heather · January 20, 2019, 11:36:55 PM

Donald... that filter pulls air from its location... the engine room. Doesn't solve my problem:

TomC · January 22, 2019, 07:26:36 AM

That built in can filter pictured can get a converter adapter that straps onto the intake so you can attach an intake hose to the filter to get remote air coming into the filter, rather than the hot engine air. Good Luck, TomC

Iceni John · January 22, 2019, 08:04:53 PM

Scott, here's another idea: why not use two filters in parallel? Your total CFM will then be way more than your engine can ever gulp down. Have their intakes up high to draw in cool clean air, and if you want to get fancy you could replace one of the first filters half way through its life - this way you would always have one newish filter and one oldish filter, then the engine would get a more consistent airflow instead of having both filters plugging up at the same time. (I've sort-of done the same with my house batteries - there are two separate banks, and I bought the first bank last year; in a few years I'll buy the second bank, then I'll never have all my batteries dying at the same time. At least, that's the plan!)

John

Scott & Heather · January 28, 2019, 08:46:10 PM

The strap on intake hose sounds good.

John, if I had the room to do this I would. It would require more room than I have or creative plumbing.