FASS Fuel Air Separation Systems - Testimonials
FASS (Fuel Air Separation System)

"Great piece of machinery."

Seth Niebaum, I.E. - of Kansas writes:

"I ordered FASS from Western Diesel Performance a few weeks back and it was promptly shipped to me, I was actually surprised how fast it got here. Installed the system the following Saturday, April 17th. Great piece of machinery, I've been thoroughly impressed even though I've only had the pump for less than 2 weeks. I see fuel pressure at 15 psi and can barely budge the needle even under the most heavy acceleration. My brother is running FASS on his chipped Cummins with the same results. Again, great product and thanks for answering my questions before my purchase."


"A great addition to my truck"

Mitch Kieffer - of Wisconsin writes:

"After our conversation on 5-13-2004, I am just dropping you a letter to let you know how pleased I was with your instant call back and knowledge that you shared on the FASS system I installed on my Duramax. The system installed easily with very little mechanical experience needed. The unit self-primes and the truck was running MUCH smoother, quieter and I am sure more efficient!!! I am running 437Hp and 1000lbs/ft at this time and this fuel system has no problems filling it's fuel demand. Thanks Brad for a quality product and a great addition to my truck!!!!"


"Definitely would buy one again."

DPugh - of Ohio writes:

"Two thumbs up here. Idle pressure at 15.5 and on 5x5 WOT never pulls it below 14. Great system, neat looking too. Definitely would buy one again."


"The install was a breeze."

98 2500 - writes:

"...I wanted nothing to do with another 'stock' lift pump. I didn't care about any hp increases, just wanted peace of mind. I will be pulling 8-9k soon with an enclosed trailer, so I purchased the FASS system right away. I can't give you dyno #'s, but the day after installing FASS I hooked up my 2k car trailer and drove from Rochester, NY to Columbus, OH to pick up a car. What I noticed right away was the upper rpm power the truck had. Usually it felt kind of flat at anything over 2200 rpm. With the FASS it would pull as hard and fast as I wanted to go. I had the trailer up over 85mph and it felt like an animal! That has to be the hp increase. The install was a breeze and Brad was always available to answer any questions I had. So far I'm happy with the system."


"I have never heard my engine idle soooo smooth."

Mundgyver - of Oregon writes:

"Just got my FASS installed this weekend. This is one strong looking unit. First thing I noticed is that it comes with all grade 8 bolts, not the cheap, soft ones.

Install was simple and straightforward. I have a flat bed and ended up installing the unit between the front bed skirt and tool box, just behind the driver's cab. It was just a fit and is totally covered from the elements except at the bottom.

After the install I did have a little trouble getting the pump to prime, but after filling both filters with fuel, she took off and started pumping.

First off I noticed the engine was a lot smoother at idle. I have never heard my engine idle soooo smooth. Also my PS high idle has always idled at 1200 to 1250 RPM. Now it idles at 1400. I guess I have always needed more pressure on my VP. I also noticed that when in 4th and really lugging the engine, she does not want to jerk and jump around. She just lugs and keeps on building RPM. I would recommend this unit to anyone that is tired of replacing the lift pump or wants the peace of mind of having a good pump.

Thanks Brad for the fine quality product you are putting out."


"You really are about the customer."

JBHale - of Texas writes:

"Brad, it was nice talking to you. You know you really didn't have to call and tell me about the scratch on the bracket. That goes to show you really are about the customer. Thank you for your time."


"I love it!"

CSpurgeon - of New Mexico writes:

"Brad, just thought that I would let you know how my system is working. I bought the system from you about 2 months ago. Currently I have about 8000 miles on it and I love it! It puts out 17 to 18psi all the time and I can never pull it down. I have noticed that it starts A LOT better, the turbo seems to spool up quicker too. My mileage seems to be about 2 mpg better than before. As much as I run, the system will pay for itself pretty quick.

The installation was pretty easy and relatively simple. I removed the OEM lift pump and filter, so my engine compartment isn't so cluttered. The pump is really well made too. Really like the peace of mind that my fuel pressure is right. Really a great product and addition to my business!!!"


"Well worth the investment."

Mundgyver - of Oregon - follow up 1:

"At 103,000 I disconnected the factory original LP and filter and hooked up the FASS. All I can say is, the truck seems to accelerate a lot smoother. My EGT's are down about 25 deg while cruising at 60mph back and forth to work. I made one modification to the system, though. The connection supplied for the VP hook up looked to be rather small in diameter. I drilled it out to 5/16 for better volume and flow. The throttle response is very nice. Fuel pressure is a solid 12 psi under all conditions.

This FASS unit was well worth the investment. I am amazed the old LP lasted this long. Next step is to plot the mileage numbers over the next month and see where it takes us."


"Smoother motor all across the board"

Keith1 - of Ohio writes:

"Installed yesterday and all I can say is it's awesome so far. 1st - it starts a lot quicker. 2nd - motor noise is a lot quieter. 3rd - fuel pressures were 25 and 35 now close to 40 at idle and near 55 at 1500 with no load. 4th - and probably the most important to me is the bottom end power that it gave it (timing at 14.5) 5th - smoother motor all across the board. 6th - in my motor it made an extra 3lbs of boost.

I will let you know next week if there are any mileage improvements to be gained from it, but so far I would say it's one of the best improvements that I have made to the truck. Great product and great people also."


"The mileage numbers are up."

Mundgyver - of Oregon - follow up 2:

"Well, my mileage numbers are up. This last week I went over to Idaho and back. The route was from Portland, Oregon to Umitilla, Oregon, Wallawalla, Washington over Lolo pass to Lolo, Montana and then over Lostrail pass to Salmon, Idaho. Last time I did this trip (pre-FASS) I got 21.3 mpg. This time I got 22.78 mpg. The worries about losing a lift pump are gone also."

FASS Fuel Pumps - FASS Diesel
FASS (Fuel Air Separation System)

  

 

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