im looking up ratings for the L67, alot of people recommended the EP376 fuel pump to run the motor, on one website it rates it at 160LPH (liters per hour)

well i found another a/c delco pump that puts out 180LPH which would be alittle more of an improvement, and it also puts out more pressure.

im wondering if you guys know how many LPH the stock 3800 supercharged fuel pump put out, or if someone has a part number for it.

matthew

if you got the time and money i recommend the bosche 044 pump. you have to modify stuff to make it fit though. but it's hard to beat the walbro 255. for like 130 shipped from racetronix i got mine and a hot wire kit.

treperformance.com

$70, all the fuel you'll ever need

E3270 the Sy/Ty pump is a good pump.

i think i might take my chances with the pump from www.treperformance.com looks like its a good pump with a 1 year warranty, normally id use the pump from the donor car, but this motor didnt come with anything extra from the donor car.

for $80 shipped and the ability to run higher horsepower it looks good, +'s for all of you

matthew

I have used several of those pumps

They are very quiet and my first one I used, is still working in the Talon after 4 years

With a BSFC of 0.5, a 240hp engine will require 120lbs of gasoline per hour. ~6lbs per gallon = 20 gallons per hour.

20 gallons per hour = 77 liters per hour

Or in other words, a 160lph pump will support 480hp, a 255lph pump will support 800hp.

This assumes the rated flow @ the rated pressure, and no return. You'll be fine with a pump of >100lph @ 65+ psi. Just putting some math up so you don't "think you need a 255 minimum"

[This message has been edited by ryan.hess (edited 01-05-2008).]

math and real world are different things also. f/i requires mroe fuel to make the same power as n/a because of lower afr. you also can't run as high a duty cycle on injectors on f/i either. based on your 800 hp for a 255 explain to me why i ran out of pump at only 475 whp?

quote Originally posted by Billybo455: math and real world are different things also. f/i requires mroe fuel to make the same power as n/a because of lower afr. you also can't run as high a duty cycle on injectors on f/i either. based on your 800 hp for a 255 explain to me why i ran out of pump at only 475 whp?

couple reasons..... different BSFC and possibly line restrictions. I think turbo/super BSFC can get up to about 0.65

Using that number I get 600 crank HP max

if i am correct my swap uses the stock gtp pump that came with my motor...no problems...just if i want to go up in mods i might hafta swap it out for more flow....something to keep in mind when you do yours...my logical thinking was if i want more power i am just gonna have another swap done in another car....lol....welcome to the addiction...ps it only took me 2 months to crave more power...sad...tim

quote Originally posted by goatnipples2002: E3270 the Sy/Ty pump is a good pump.

thats the same pump that cross references with the n/a 3800's im pretty sure it wont run the supercharged 3800's i could be wrong considering those vehicles you listed are turbocharged and Fuel injected, but im not going to take my chances.

i found the EP376 for the 94-96 LT1 v8's for as low as $37.95 + shipping, however im not sure if i trust the brand thats being sold on ebay (unknown brand)

matthew

[This message has been edited by m0sh_man (edited 01-05-2008).]

The EP376 will get the job done for the 3800SC. I have ran this pump for over 2 years now on my modded 3800SC with no problems. I run 42# injecters with a 2.8 pulley and have never ran into a lean condition. Whatever pump you are going to use, dont go cheap on it, get AC Delco, Walbro, ect--avoid the knockoffs.

I have a friend with a 97 Regal GS that has the 3800SC in it from the factory and when his fuel pump crapped out last year he was told it was the same pump for the 3800SC as the 3800N/A in the Regal, I was suprised that the car always ran fine and never lean so unless the Regals in 97 had special pumps for both the 3800 SC and the 3800 N/A engines the N/A pump must be ok.
Personally I always use either a stock 3800SC fuel pump or the walbro 255 one for cars where mods are in the plans. Dan

while a n/a pump looks like a SC pump, it does not have the same part number.

My friend literally makes these at delphi, and there is a specific pump they put on the supercharged versions.

[This message has been edited by darkhorizon (edited 01-06-2008).]

ya they do look the same but the s/c will flow 25-30 lph more but a stock 3800 n/a pump will support 350 hp

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Parts for your FWD GM 97-07
Morad Parts Company
Moradpartscompany

dont worry about sizing the pump to your motor, all the exess gas will just go down back into the tank. its not like putting injectors on that are too large. thats why everyone just slaps the same 255lph pump on their cars, the price difference between that and the 190lph ones one is about 10-20 dollars.