love the engine paint scheme. nice. i did mine all black with red. but im digging th metal and red color.
Printable View
love the engine paint scheme. nice. i did mine all black with red. but im digging th metal and red color.
Thank you!
Thanks! I'm kind of bummed that you can't see more of the red now that it's installed, but the whole combo looks really good in there.Quote:
Originally Posted by vandejr
For what? :DQuote:
Originally Posted by jerseymike68
so you have 87 tanks for the baffles im thinking??
what pump are you using and what did you do about fuel lines im getting a TBI Sending unit im stuck on the pump and what to run for lines?? any ideas???
Yeah, I wanted the bowl in the tank. I had been running the stock 85 tanks (no bowl) with the TBI and it would die if I stopped to quickly with anything less than 1/4 tank of fuel.Quote:
Originally Posted by aussie
I'm using ACDelco EP-381 pumps (FE0114 - Electric Fuel Pump $69 each), they've are giving me right at 58 psi.
I ordered FI rated 5/16" hose for the return lines, and Summit's -6 hose for the pressure side. FI rated clamps on all the tank and valve connections, and Summit's Snap-Tite AN fittings on the Vette filter/regulator and fuel rail.
It's been working perfect.
ok so will i need to use vette filter /reg on mine i cant see a reg on the fuel rail mine is a 2000 ? and what is summit-6 hose is this hi pressure? thx for the help
Does your fuel rail have one or two lines on it? It probably has two if it's a 2000 model. If it has two, you won't need the filter/reg, but you will if it only has one.
This is the hose:
Summit SUM-220785 - Summit Racing® Twist-Tite Hose - Overview - SummitRacing.com
it has 2 lines so i will get some -6AN line from the sending unit to a filter (any suggestions on the filter) then from the filter to the engine -6AN line 5/16 EFI hi pressure line for the return!! could i use this
NOS 15430 NOS Stainless Steel Braided Hose
You could, but that is a retarded amount of money for braided line! Summit sells -6 AN stainless braided hose, same length (6') for $26.95.
I guess I should update.....
Took the truck on it's first drive this Saturday, and it runs awesome! Even with the 2.73 rear end in it, it still runs fantastic! I can't wait to get the 3.42's in there. :D
The first tank gave me 252 miles to just barely under 1/4 tank, so I think pushing 25 mpg should be easy. I was hard on this tank, hard on the gas pedal, and not slow on the highway! So once I get the better gearing in it and ease off the go-fast pedal, it should start producing some great mpg numbers.
wouldnt going 3.42 take off hardER, but make less MPG?
Yes, and no.
With the 2.73's right now, the engine is only turning about 1700 rpm at 75 mph. That's way too low, and the engine is lugging because of it. The 3.42's will have the engine turning about 2250 at 75, right where it should be for optimum performance and economy.
And yes, it will scoot off the line much better. :D
how did you fit the fuel pump in the tank? and what fuel pump did you use? im almost done with the 5.3L swap in my 82 c10 but i have no idea how to fit the fuel pump. any help is appricated.
You will need to swap the sending units to the 87 models. The 87's had TBI and used in-tank pumps. The sending unit part numbers are:
* Dorman p/n 692027 for the driver side, $94 at rockauto.com
* Dorman p/n 692044 for the passenger side, $101 at rockauto.com
I used ACDelco fuel pumps:
* AC Delco EP381 in-tank pumps. $69 at getgmparts.com
And a high pressure tank switch valve:
* Pollak high psi tank selector valve. $83 at JC Whitney, p/n ZX812705U
And be sure to use fuel injection hose, not regular fuel hose. Also use good fuel injection clamps, not the typical worm gear clamps.
Since everything will be out, you might as well swap to the 87 style tanks too. They have a large "bowl" that the pumps sit down in to. They keep the pump surrounded with fuel when the fuel level is low, and/or when you brake hard. You can use the 86 and older tanks, but you will kill the engine when braking hard when the fuel level is around 1/4 tanks or less. I had this problem with the TBI engine and the original 85 tanks, so I swapped to the 87 tanks when I did the 5.3l. I've ran then down to having less than 2 gallons left and haven't had a problem.
I thought they did not have baffles?
Baffle, bowl, what ever you want to call them. They are in there.
Oh, OK.
hows this comin
looks good tho
I just want to say thanks for all of the documentation on your engine swap. I just found this forum in my quest to find info for my engine swap. I am shopping for a 5.3 myself and want to keep my 700r4 in place because I have a 1987 4X4 and don't want to do a lot of work moving the drive train around. I am very impressed with mileage you getting now. (just what I am looking for).
was the AC Delco EP381 in-tank pumps a direct replacement or did you have to modify the sending unit? also what is the pump rated because i cant find any info anywhere? thanksQuote:
Originally Posted by glock35ipsc
i believe both the ep241 and 381 to be rated at 80psi. i think they are the same pump but the 381 is a kit with gaskets.
and yep, they are direct replacments.
thanks ill look into it.Quote:
Originally Posted by menace121978
I about forgot about this thread! I've been driving the snot out of the truck, no problems at all, and have been getting 19-20 on the highway.
Had a dyno tune done, and the final numbers were 266hp and 305tq at the tires. Not bad for bone stock.
I finally got the A/C back together and working. Used the 5.3's original compressor, and the rest of the components are OE to the truck. Was happy that I could use the 5.3's compressor without having to notch the frame! All new stuff except the evaporator, but original to the truck. Just in time for the warm weather too! Of course, it was 79° yesterday, and this morning I woke up to 5" of snow!
man thats awesome to hear that the truck is runnin good for u.... congrats
:chevy:
hi i have a 85 chevy 4x4 just starting the 5.3 swap with the 4l60 had a couple questions would i be able to use an inline fuel pump instead of replacing the sending units an putting pumps int both the tanks. any thoughts on how this would work thanks