Forums
New posts
Search forums
What's new
New posts
New media
New media comments
New profile posts
Latest activity
New showcase items
New showcase comments
Media
New media
New comments
Search media
Members
Current visitors
New profile posts
Search profile posts
Showcase
New items
New comments
Latest content
Latest reviews
Latest updates
Search showcase
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Power Strokes
7.3 Aftermarket
fuel system questions
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
[QUOTE="TARM, post: 95765, member: 578"] you might want to also look at another Bosch pump. They are basically up sized version of our stocker and flow about what the larger fuelab does on reduced setting or 280-300lph or 70-80gph. Flow rate of Walbro 392 @ 65-75psi is around 55gph+/- I recommend people take a look at the Bosch 044 pump as well. It also has larger inlet/outlet compared to stocker or the walbro and its inlet is larger than its outlet which is proper sizing ratio. Is only slightly louder than stock pump. I would still recommend if you want to longest life possible for any of these pumps that a lift pump be used unless you are running a sump outlet from the tank. I will be running a number of extensive fuel temp tests in the near future with and without the cooler inline. Its using a V10 trans cooler as the fuel cooler. Look up my fuel system here: [URL="http://powerstrokearmy.com/forums/showthread.php?t=4230&highlight=fuel+system+twist"]Fuel System with a different twist installed[/URL] While the title is fitting for what I did that pump has proven to be super reliable as a stand alone as well and is one of the most popular one used for ricers. I looking for top quailty. I will be doing as many detailed tests as possible on fuel. Will try to get some dyno time in as part of it as well. But one of the largest effects we should care about beyond effects on power is lubricity and viscosity. That is what protect our injector's barrels and plungers from wear and scaring. The hotter the fuel gets the thinner and weaker the protective film. This in turn can lead to a decreased life and accelerated wear. The HEUI is very unique in its effect on fuel temps with its internal fuel rails and then the use of a flow thru return fuel system. I am trying to dig up some charts that woudl show the effects by temp on the lubrication specs of diesel. If I can not I may send off a sample or see if one of the lubricant labs can give me the numbers. The other thing that just a fact of science is the hotter the fuel the more it expands/lower specific gravity. As our injectors and systems work off fuel volume not weight there will be less BTU/energy per vol of fuel that is injected the more its temp increases. Consider how many times the fuel is put thru the heads based on tank size and pump flow. Then consider the effects as you get closer and closer to a empty tank. Figure temp in the heads at the fuel rails in the 200°F+ range of a fully warmed up engine. I am interested to see what the real world effects are. For those looking for stock Bosch pumps they can be had for far less than fuelab pumps and no more than a Walbro if you do just a little digging. One quick EBAY check yielded a few: Bosch 0 580 464 074 is the pump you are looking for BTW Here is the one for $99 [url]http://cgi.ebay.com/ebaymotors/Bosch-F81-U-9350-AA-0580464074-Ford-Diesel-Fuel-Pump-/390108696313[/url] The key is you do not want the full pump kit just the pump. When they sell as the kit the price goes way up as that's the typical retail way they are sold. Always of course make sure the pump has the proper model number stamped on the pump body and should be made in Germany for this model. When looking for deals read carefully as some are selling other brands like cheap airtex cater or ac delco and then listing the bosch part number as an alternative part number meaning a cross ref but not what you are getting. The Bosch 044 can be had for $180 with some checking but I would buy from a reputable place for these. Bosch pumps come with check valve outlet fittings. As far as I know no one else do. This is why they do not create flow loops running them in parallel when one fails. It also helps extend the life of the pumps and prevent damage. Its all the little things that make Bosch pumps long lasting IMO. [/QUOTE]
Insert quotes…
Verification
Post reply
Random media
Latest posts
Lower coil spring pad bolt
Latest: KBMKVIII
Today at 7:14 AM
6.0 Tech
Tuning 101 - Thread Merged with Injector Posts
Latest: 6.0 Tech
Today at 12:34 AM
7.3 Aftermarket
B codes vs hybrids
Latest: Charles
Yesterday at 9:54 PM
7.3 Aftermarket
B-Code VOP
Latest: Charles
Yesterday at 9:29 PM
7.3 Aftermarket
T
Coolant temp
Latest: t.rider.013
Yesterday at 1:05 PM
2017+ 6.7 Aluminum Super Duty
Members online
No members online now.
Forums
Power Strokes
7.3 Aftermarket
fuel system questions
Top