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Walbro-where to buy?

The first inquired about a Walbro and a RAcor. I offered another solution that solves both better IMO. I personally think the Walbros are overrated. I don't think they are much better than stock where as the Fass or AD are. Unless this forum has become biased to only certain products, I thought that's what the threads were for.
 
Nope it's a germane discussion Ken, but I'll go a little further on my overkill opinion, we aren't pushing high psi on the fuel system here so I think, empahsis on think molecular level air removal not a big gainer for the 6.5, the Walbro moves almost move 2x gph of the OEM lift, which for most people is sufficient, Replacement Racor element much more eaily found/supported and on sale often so you can keep cost low.

I would categorize that FASS or AD are the "high end" solution to more flow and viable for the 6.5, but Walbro/Racor still a good choice on low end with vast improvement over the factory set up.
 
Turbine Doc said:
Nope it's a germane discussion Ken, but I'll go a little further on my overkill opinion, we aren't pushing high psi on the fuel system here so I think, empahsis on think molecular level air removal not a big gainer for the 6.5, the Walbro moves almost move 2x gph of the OEM lift, which for most people is sufficient, Replacement Racor element much more eaily found/supported and on sale often so you can keep cost low.

I would categorize that FASS or AD are the "high end" solution to more flow and viable for the 6.5, but Walbro/Racor still a good choice on low end with vast improvement over the factory set up.
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I forget which one but one of them (the AD ??) uses regular Fleetguard Filters which can be purchased anywhere including NAPA. I never argued one way or another on PSI. IN fact I"M not sure if it puts out too much. I just like the added filtration and ease of changing fuel filters. IIRC Bill Heath is even running one from your other post. It is expensive, wasn't pushing it just wanted people to see that there is more out there that's all not to mention they are also sold by several supporting vendors here as well.
 
Ken I wasn't intimating that you were pushing it, just offering some observations from afar, and yes Bill was running AD at Bonneville, because for dang sure a Walbro will not support fuel needs for 150+ mph speed.

My pressure reference was about final fuel pressures at the combustion chamber; postulating that since we are not feeding 20K psi common rail that FASS & AD advertised "removes trapped air from fuel" feature may not be much needed benefit for us IDI guys under 2500 psi at point of injection.

I'm not sure about Diesl Pro's concerns on too high of a IP supply from the lift, I'll call him at his shop to clarify that point, but IIRC both FASS & AD have adjustable output pressure regulators, so I would not discount those for that reason.

Possibly there might be a concern of too much flow to the 6.5s IP that it won't be using, and a lot of return fuel going back to the tank creating foaming of the fuel in the tank.

My speculation is that if you have 150 gph capable pump, and only need 15-20 most times that extra fuel has to go somewhere, even if back to suction side of it's own pump that is a lot of "circed" fuel, and circed fuel from my experience tends to build heat as well as arreates, but maybe not an issue.

"note to self, investigate cost of a flowmeter rig that doesn't cost arm & leg" another "neato-cool" gauge toy to watch. :D

Also one of the reasons I went selectable lift option (2) parallel pumps, Walbro for towing/or WOT operation/testing & Heath's h/o lift for everday driving, what I have found that 6.5 manages to do okay with returned volume of fuel from the Walbro, so for every day driving it's fine alone.
 
Actually they both make 100 GPH versions as well. Hey, I didn't even use it on my Dodge cause of the price. I used the AD Raptor which is the same pump m- filtration. Whemn I build the new 6.5/6.2 beast I will probably use a Walbro as I can't justify the cost of the AD/Fass. Details on that to come... I don't want to jump the gun yet ...Got a line on something big...I hope...I've been 6.5 less for only 1 day and been jonesin'....
 
I'm not sure about Diesl Pro's concerns on too high of a IP supply from the lift,
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Don't know the reason, just remember him bringing that up......too bad he didn't follow to DTR, his input was allways a plus.

Thanks,
 
'm not sure about Diesl Pro's concerns on too high of a IP supply from the lift, I'll call him at his shop to clarify that point, but IIRC both FASS & AD have adjustable output pressure regulators, so I would not discount those for that reason.
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Reason is you can blow a shaft seal. If that happens you can get a crankcase full of fuel and other things. However a Walbro won't make enough pressure for that to happen.

Greg
 
Turbine Doc said:
Ken I wasn't intimating that you were pushing it, just offering some observations from afar, and yes Bill was running AD at Bonneville, because for dang sure a Walbro will not support fuel needs for 150+ mph speed..
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How do you know it wont keep up with that demand? 45GPH is a lot of fuel for sure. I've seen the walbro pump straight out of the ass and it sure pumps alot of fuel volume.

Should be able to figure it out, say 100mm3 per stroke, at 5000 rpms. How much fuel is that?
 
Matt Bachand said:
How do you know it wont keep up with that demand? 45GPH is a lot of fuel for sure. I've seen the walbro pump straight out of the ass and it sure pumps alot of fuel volume.

Should be able to figure it out, say 100mm3 per stroke, at 5000 rpms. How much fuel is that?
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Because it just maintains 117 mph when pulling through a Racor filter,
at 1st WOT you get a momentary drop to .5 psi then as you settle into 117mph it recovers to 1-1.5 psi.
 
Turbine Doc said:
Because it just maintains 117 mph when pulling through a Racor filter,
at 1st WOT you get a momentary drop to .5 psi then as you settle into 117mph it recovers to 1-1.5 psi.
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... I'll just have to keep my rig under 117 then....It wont be easy but I'll manage.
 
The Raptor is adjustable and has a lifetime warranty. Plus it comes with frame rail mounting kit.
If I still owned my Tahoe I think I would have gone that route. Would be overkill for stock. I have a Raptor on my Dodge. Damn nice pump. It's only running about 15 psi.
 
Acesneights1 said:
The Raptor is adjustable and has a lifetime warranty. Plus it comes with frame rail mounting kit.
If I still owned my Tahoe I think I would have gone that route. Would be overkill for stock. I have a Raptor on my Dodge. Damn nice pump. It's only running about 15 psi.
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good to know, now tell us the ballpark price to add to this threads value...

Walbro is 90-95ish USD$$.
 
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