FASS Dyno Results

[GIT-R-DONE]

Well, I do have a legitimate question to throw out to others more knowledgeable than me.



As Brad claims 2-5 lbs of manifold pressure is where he believes he is getting the Hp from, doesn't the ECM not allow more than 20 lb of boost and would start to defuel, thus is the reason that we aren't seeing the increase in manifold pressure?



I do not have an answer for that. I do know I am keeping my system, and hope to have many years of trouble free operation with my new FASS. I am, in the quest for knowledge about anything that pertains to my truck, thats why I am here in this GREAT TDR site. Once again, Brad, if there is anything I can do to help you out,or questions you may have, I will do what I can. Don

 

[JTBMC]

Yesterday we installed gauges on a friends stock 01 that already had the FASS and also installed an Edge comp.

The first run is w/o comp & turn buckel installed and gave us 20- 21 #'s boost presure, next run comp installed but in off position and the boost presures ran up to 34 psi at wot. With comp on level 1X5 the psi was the same 34 and last run gave 35 psi at WOT.



TJ

 

[ChrisOlson]

Re: FASS Fuel System

with humble respect I quote EKSTAM here



"I have had this pump in the field since 1994 in over-the-road trucks. "



that is 9 plus years and no dyno tests yet?



I like others am very interested in fass system

I am always interested in relaible products



but before I drop 500 bucks



I would like to see hard proof of the claims not just swishing fuel around in a jar



just one mans humble opnion.

 

[Dkevdog]

Brad- Maybe I should call you so you can explain yourself, but here's the jist of it- Your insistance of your product increasing performance is setting you up for some future problems. So far at least, you have no proof. And "seems to have more power" is not proof.



Again... ... ... I'm not trying to argue with you, I am considering the pump on reliability alone.



Now, that being said, if I install this system and don't get the increased performance out of you claim, then I do believe we have the makings of false advertising. (And we all know how the majority here feels about THAT!!!)



So, are you going to refund my money if or when I see no increase in HP???



Kev

 

[WadePatton]

Reliability WAS the issue.

Then Brad teased us with a HP claim.



Some of us who weren't otherwise interested, GOT interested.



Now Brad tells us that the only way his +HP claim can be proven is with G-tech.



Because something about being strapped on a dyno changes your normally cavitating/aerated OEM fuel system and fuel to become pure and beautiful again, hence no change in RWHP.



What is a G-tech? It's a little box like a radar detector with inertial sensors in it. You calibrated to your vehicle weight and it'll time your 0-60, 1/4, estimate HP, etc.



It's better than nothing, and GREAT for those who tune a LOT and dyno little (like a 12v!) I may get one, but I'll be referencing it to the Mustang 1750 every chance I get.

 

[JTBMC]

Reliability is what I'm looking for, if I want more HP I'll add bigger injectors. I can guarantee you will feel and see the difference in your trucks performance after the install of the FASS.

TJ

 

[Dkevdog]

TJ- Guarantee huh?? Money Back Guarantee?? Nobody here seems to question the reliability. The question is in HP. And Brad is the one who started it. Once again, I fail to see how these numbers mysteriously disappear on a stationary dyno. Making claims you can't prove is simply false advertising.



Kev

 

[JTBMC]

Kev

My paper work says the pump has a 2 year gaurantee, now your right that may not be enough to experance a problem. HP claims I dont care if I gain HP or not from the pump as I didnt buy it to gain anything but pump reliabilty and rock steady fuel presure, and not have to change a dead or failing LPOS on the side of the road ever again. Ive gone thru 6 of those 160 buck plus rascals and feel as I have thrown my money in the crapper every time I bought one to replace the spare under my seat.

My ATS trans has a 3 year unlimited milage warrenty and has not failed in 70,000 miles, nor do I expect it to. but I have used 4 L/POS in those same miles.

I would pay 500 bucks to watch a monkey fart in a bag at this time in the game if it would get me a pump that I can depend on. Who knows this might be the one, if they can holdup to the OVTR drivers it should work for me.

TJ

 

[dresslered]

Nobody here seems to question the reliability.

I am still not getting the reliability feedback that the rest of you have. Has the orientation of the pump been the only break-through to a good pump? Is the installation on "over-the-road trucks" the same exact application as in the Ram? What kind of pump is it? It obviously has to work much harder in the FASS application than our own pumps do in the OEM configuration. Perhaps you should just offer the pump by itself?



For me, $500 for a guaranteed 2-year pump just doesn't cut it (I can get close to that on the OEM pump). Perhaps only time will tell.

 

[c-hawk]

I don't claim to know much of anything, but I don't mind talking anyway...



The fass went on my truck at the same time as the HX40 and Comp to Drag comp upgrade. So obviously, i can't say anything about hp gains, not even "seat of the pants feel. " Maybe it helped hp, maybe it didn't.



But I didn't buy the Fass for extra hp. I bought the fass, because my stock fuel system wasn't keeping the fuel pressure up when i was running the truck hard. I can honestly say that the only thing i hoped to achieve by installing the fass was to keep my fuel pressure in the "good" range. It does that very well for me. At idle i'm at 17psi, with the drag comp on 5x5, i can't pull it below 15psi no matter how long i stay on it. I'm happy as can be with those numbers.



But i noticed two other things that I myself am convinced of. And keep in mind i wasn't expecting or looking for either of these. It was just so obvious that i noticed it instantly. One is that the truck started quicker. The other is that it runs much smoother, especially at idle. Why? I have no idea.



One other question for those that were there when cuda6pack dynoed. As someone else pointed out early in this thread, is it a possibility that winter fuel had anything to do with the hp numbers. I don't know the situation, but it seemed like a legitimate question.



Later,

Chris

 

[GIT-R-DONE]

C-Hawk, Yes, Big P asked that question about the winterized fuel. To give you a straight answer about the factor of the fuel, I cannot. I am not a chemist or fuel specialist. I assumed that the small loss of Hp was due to the fuel.



I do know that I averaged 19 mpg round trip running on avg speed of 70-75. I will not say that this is due to the FASS, but I believe with the fuel cut, I probably would not have gotten that good of mileage if it were not for the FASS, on winterized fuel.



No one has answered the question I posted earlier about the ECM possibly not allowing the boost to go through the system. Since the ECM controls the boost, if the FASS actually ( I don't know for sure if it does or not, but going on what I am told ) in creases the boost, would the ECM not allow the extra boost to be used? I don't have an answer to this and need someone that is more knowledgeable than I to address this question. Maybe I am off base, I don't know.



Don

 

[turbo lcc]

Fuel pressure???

cuda6pack



What kinda fuel pressure are you seeing from the FASS?? and how much does it fluctuate??



I am just curious??



Thanks

Lynn

 

[GIT-R-DONE]

Turbo Icc, I am running 10 lb. of pressure. That is my choice of pressure. You can run basically what you want to by a spring adjustment on the system. You would have to talk to Brad (owner of FASS) for more detailed instructions. But it is easy to add or lower pressure. I have heard of others running as high as 17 lb. with minium fluctuation. Mine WILL NOT DROP in pressure no matter what I do to it. Now, my truck is stock too with no fueling mods, so you would have to find someone with a lot of mods to find out other set-ups, but with my DC lift pump I could go from 10 lb idle to 2 lb WOT. That wont happen with FASS.



Don

 

[RAndrae]

pressure

got my FASS set at 12 psi . westack (spelling?) sending unit mounted on FASS system to a elec westac guage. No pressure variation AT ALL. . PDR HX 35, EZ box, exaust, air box

 

[Big P]

Cuda, I don't think it's the ecm holding back boost, it's probably the stock wastegate.

 

[c-hawk]

Cuda,



I think big p is probably right. I put a turnbuckle on my truck once when it was completely stock, just to see what would happen. I can definitely say that with the wastegate disabled, my truck built more boost then the ecm liked, and when it defueled, it was very noticeable. I think if in fact there was a small increase in power, the wastegate would keep you from seeing an increase in boost.



Chris

 

[Murle]

Ok, guys, I don't care what the dinos say. Yesterday I pulled a 24 foot tandam duel trailer to the cow sale. I have pulled this trailer many many times to the same sale, up and down the same hills at the same speeds, at the same time of day and in the same truck.



But yesterday I bucked a 25 mile head wind both ways, wind change directions during the day.



This is the first time I have pulled this trailer with the FASS installed.



1. Truck seemed run better and did not seem to lug as bad up the hills. Speed 70 mph + trailer empty. 5th gear(only a 5 speed)

2. Return home with 10,700# of cattle. Truck ran with better power than it every has. Truck only lost 5MPH at the worst hill. It has alway lost at least 10mph the same hill. ET was 200 less. And the boost was up 2# I have never ever got this much boost out of this truck before. 65mph 4th gear.



Now like I said I don't care what the numbers say. I know that my truck has more HP now than before. I also was not looking for more Hp. Just peace of mind that I was going to have fuel when I need it.

 

[RAndrae]

boost

Am I missing something---isnt it true that the trucks that saw a little increase in boost are not stock, geeze of courese a stock truck cant do more than about 18##.....

 

[GIT-R-DONE]

RAndre, I don't know about your truck, but my STOCK truck boost max's out at 21#. It wont go over that. My thought was that the ECM was the reason for the lack of boost that I was supposed to see with the FASS installed. I am trying to figure this out, and I am learning as I go... ..... do you have any ideas? Happy Holidays! Don

 

[BillGotthelf]

Cuda-installing a larger or better fuel pump will not do anything to increase boost on a stock truck. On a highly modified truck it might have an effect on boost if the lift pump was not supplying enough fuel to the injector pump. High Hp trucks take the vp44 to the upper limits of its performance and not having enough fuel to feed the pump (coolinf and injector pressure) might result in less boost than if the fuel was there. Other than increased reliabilty and possibly increasing longevity of the vp44 I cannot see the FASS or any other booster pump system increasing performance on a stock or slightly modified truck. When I was running a PDRhx40, DDIII's, 4" exhaust. afe intake and ats exhaust I could take my 16lbs(at idle) of fuel pressure ( new lift pump) to 6lbs in the 1/4 mile. Now with my new mods I am looking forward to seeing what the FASS with do with my 1/4 mile pressure drop.