Shawn, how did you not reach through the internet and slap that dude? 
CK5
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Edelbrock Proflo 4
- Thread starter 6872xtc
- Start date
Back when I worked the auto parts retail counter I had some customers like that. They would be buying some parts, and asking me a lot of questions on how to do the job. I had to be honest with a couple of customers, and tell them that if they had to ask some of the questions they asked me, it would be wise not to take on the job. That it would be best if they took it to a mechanic.
Its crazy sometimes when people try to tackle these things. I'm not against learning and asking questions but some of these people don't have the mindset for it. All you can do is be nice and try to explain the best you can but I'm sure that gets old if your a parts store worker especially with people waiting behind them. It just made me chuckle seeing that post. My daughter is 20 and she needed new brakes installed. Guess who changed them? Not me. I try to show her how to do things herself and she likes doing it. Also made made my wife change her own oil a couple months ago. They need to learn one way or another. 
Stock TBI which is the same as '96 and up Vortec, I believe.
if i had not done nylon late model style fuel lines i would have done the stock tbi type .
i used a WIX 33267 for push connect style . was a 90's gm full size car and 9micron size filter . biggest reason was 3/8" line size . the bigger more common ford ones are 5/16" line size only .
i used a WIX 33267 for push connect style . was a 90's gm full size car and 9micron size filter . biggest reason was 3/8" line size . the bigger more common ford ones are 5/16" line size only .
Stock 87 TBI filter and stock line until where it connects next to starter and have adapters to go 6AN.
If I had to do new line from tank I'd do 6AN fittings with PTFE braided line and Aeromotove cartridge fuel filter. If I was on a budget then 3/8 EFI line with any decent large fuel filter.
If I had to do new line from tank I'd do 6AN fittings with PTFE braided line and Aeromotove cartridge fuel filter. If I was on a budget then 3/8 EFI line with any decent large fuel filter.
https://www.summitracing.com/parts/ado-gf652/applications/make/gmc/model/sierra-2500-hd?prefilter=1
eh?
@Shawn I do have -6 AN front to back, and looking to do an inline with adapter fittings
The type @miniwally mentioned in my thread with the spin on is also appealing. Not sure where I put it, but I like the idea
ekajkrats
1/2 ton status
I was going to recommend that one. Has served my fitech just fine.
Spin on fuel filter is not a bad idea. Like you said just hard to find a spot for it where a rock won't hit it. Maybe close to the fuel tank or where they put them on the diesels which is on the firewall.
The Aeromotive is a quality filter with different micron catridges.
I don't have a BroFlo but I use the stock TBI filter with the EP381 pumps I'm running.
Curious why everyone runs the EP381 which is 155 LPH. The Walbro 255 LPH is the same size and can provide more fuel to a modified engine if needed. I realize If the engine is mostly stock then no need for high volume pump.
381 is 255lp
Cheap and readily available. I have been curious if fuel delivery drops off on high demand like when I'm towing a camper up the steep passes. Now that I have a fuel pressure gauge in the cab, I'm anxious to see if it keeps up.
Let me rephrase that. I read it was 255. Now I am hunting for documentation
It said it on the Internets, we know it must be true. Haha. I've actually been curious about it myself which is why I wanted to get the pressure gauge in the cab.
I don't think its 255 LPH
quote-
I know my 18 year old, 85K mile EP381 recently hit a horsepower wall in my Express. Ran a dyno of 375 RWHP, running lean at 13.5:1 afr. I tried a few things to make it richen up, but when the increased pulsewidth did nothing, I put a gauge on it and ran it again. When I pushed the MAF flow table higher, the fuel pressure dropped from the Marine intakes 58 PSI set point to the mid 40s at WOT.
255 LPH should support 500 easy.
quote-
So what pump should you use? Well, you should use a fuel pump that is capable of supplying enough fuel volume at the pressure your application demands. If you are looking for an OE-replacement type fuel pump and your engine only puts out up to about 300 crank HP, then you would probably be ok using something like the AC Delco EP-381 / Delphi FE0114 pump. Personally, I like to have a little bit of a safety net when it comes to things like this so I make sure I will never exceed the capabilities of my fuel pump. So you may want to consider an aftermarket performance pump.
The aftermarket offers several different models of pumps, some manufacturers make pumps for many different vendors which are sold under other brand names such as Holley or even some OE-replacement units. For example, Walbro several high performance models: 190 lph (liters per hour), 190 lph-high pressure, 255lph, and 255lph-high pressure. Typically, the high pressure pumps are designed for use in forced induction applications where higher pressures are required of the fuel system. (The 255lpr walbro pumps will support over 550 crank HP on a turbo/supercharged engine @ 60psi of pressure.) Walbro offers several different designs of these pumps made for various vehicle applications.
http://www.gmtuners.com/tech/fuel_pumps.htm
quote-
I know my 18 year old, 85K mile EP381 recently hit a horsepower wall in my Express. Ran a dyno of 375 RWHP, running lean at 13.5:1 afr. I tried a few things to make it richen up, but when the increased pulsewidth did nothing, I put a gauge on it and ran it again. When I pushed the MAF flow table higher, the fuel pressure dropped from the Marine intakes 58 PSI set point to the mid 40s at WOT.
255 LPH should support 500 easy.
quote-
So what pump should you use? Well, you should use a fuel pump that is capable of supplying enough fuel volume at the pressure your application demands. If you are looking for an OE-replacement type fuel pump and your engine only puts out up to about 300 crank HP, then you would probably be ok using something like the AC Delco EP-381 / Delphi FE0114 pump. Personally, I like to have a little bit of a safety net when it comes to things like this so I make sure I will never exceed the capabilities of my fuel pump. So you may want to consider an aftermarket performance pump.
The aftermarket offers several different models of pumps, some manufacturers make pumps for many different vendors which are sold under other brand names such as Holley or even some OE-replacement units. For example, Walbro several high performance models: 190 lph (liters per hour), 190 lph-high pressure, 255lph, and 255lph-high pressure. Typically, the high pressure pumps are designed for use in forced induction applications where higher pressures are required of the fuel system. (The 255lpr walbro pumps will support over 550 crank HP on a turbo/supercharged engine @ 60psi of pressure.) Walbro offers several different designs of these pumps made for various vehicle applications.
http://www.gmtuners.com/tech/fuel_pumps.htm
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I read a few people saying it will support more HP but no real proof or actual flow tests. The cost of a true 255 LPH pump is like $84 compared to $52 on the EP381 so cheap price to pay for peace of mind IMO. I went a step further and did the 450 LPH even though the 255 would probably be ok for my needs. If I decide to add a power adder later on, I'm covered.
