Notices
GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

Ok, done with the in tank pump. Come in.

Thread Tools
 
Search this Thread
 
Old 07-18-2005, 09:50 PM
  #11  
TECH Veteran
iTrader: (1)
 
99Silver6.0's Avatar
 
Join Date: May 2002
Location: Olathe, Kansas
Posts: 4,039
Likes: 0
Received 1 Like on 1 Post
Default

Nice. I was looking at pumps today at work and didnt relaly see a good one. I gotta look up that part number tomorrow.... HOL 12-902 Anybody have a picture of the complete pump/sender unit?? Wanna see that bastage.
Old 07-18-2005, 09:59 PM
  #12  
On The Tree
 
ReedyCreekRacin's Avatar
 
Join Date: May 2005
Location: Marion, South Carolina [><]
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Default

cool, ive been wondering about a fuel pump upgrade.
where'd you get the pump from?
i guess this pump's supposed to be daily driver reliable too?
it came w/ everything you needed to put it in?

ive got to agree w/ Wilde though, pulling the bed off is easier. CHIP
Old 07-19-2005, 07:05 AM
  #13  
Tin Foil Hat Wearin' Fool
iTrader: (36)
 
1slow01Z71's Avatar
 
Join Date: Oct 2004
Location: Austin, TX
Posts: 23,204
Likes: 0
Received 4 Likes on 4 Posts
Default

Pulled the bed off to change out the sending unit in my truck. 6 bolts and unplug the connector for all the lights and the filler neck and its off. Will a 255lph pump be enough for a 408 and a 250 shot of nitrous? I know Im going to have to upgrade for my new setup but dont know exactly how big Im going to have to go.
Old 07-19-2005, 10:53 AM
  #14  
How do I change this text
iTrader: (26)
 
Wilde Racing's Avatar
 
Join Date: Jan 2005
Location: Behind the TIG welder
Posts: 7,294
Likes: 0
Received 2 Likes on 2 Posts
Default

Originally Posted by 1slow01Z71
Pulled the bed off to change out the sending unit in my truck. 6 bolts and unplug the connector for all the lights and the filler neck and its off. Will a 255lph pump be enough for a 408 and a 250 shot of nitrous? I know Im going to have to upgrade for my new setup but dont know exactly how big Im going to have to go.

Not sure for the pump, but I'd check into a dual set-up like parish has got. Then you know you won't have any fuel pressure problems. my .02$
Old 07-19-2005, 11:52 AM
  #15  
TECH Senior Member
iTrader: (26)
 
kbracing96's Avatar
 
Join Date: Jul 2004
Location: Oakland, OR
Posts: 9,485
Received 30 Likes on 28 Posts
Default

If I remember correctly, a single 255 lph pump is good for apx 750 flywheel HP.
Old 07-19-2005, 12:40 PM
  #16  
Tin Foil Hat Wearin' Fool
iTrader: (36)
 
1slow01Z71's Avatar
 
Join Date: Oct 2004
Location: Austin, TX
Posts: 23,204
Likes: 0
Received 4 Likes on 4 Posts
Default

Looks like I may need to go a step up just to be safe then. I might want to spray a 300 shot since the internals are going to be forged if my deal goes through. It sounds like it was really easy to install.
Old 07-19-2005, 01:31 PM
  #17  
How do I change this text
iTrader: (26)
 
Wilde Racing's Avatar
 
Join Date: Jan 2005
Location: Behind the TIG welder
Posts: 7,294
Likes: 0
Received 2 Likes on 2 Posts
Default

One thing I noticed with my fuel pump is when the tank is under 1/4 full, and I get on it hard, my fuel pressure drops off and I get a missfire code. Not good for the fuel pump or the engine.
Old 07-19-2005, 02:08 PM
  #18  
Tin Foil Hat Wearin' Fool
iTrader: (36)
 
1slow01Z71's Avatar
 
Join Date: Oct 2004
Location: Austin, TX
Posts: 23,204
Likes: 0
Received 4 Likes on 4 Posts
Default

Does that just have to do with the placement of the pick-up or what can you still run it to the low fuel light?
Old 07-19-2005, 05:31 PM
  #19  
TECH Senior Member
iTrader: (9)
 
slowprocess's Avatar
 
Join Date: Aug 2003
Location: Cleveland Mississippi
Posts: 6,204
Likes: 0
Received 0 Likes on 0 Posts
Default

Have you logged the fuel pressure at different points(idle, wot,etc)? I'd like to see if it stays pretty much where its supposed to. My buddy did an inline on his dodge, and he was getting way too much pressure and I believe some vapor lock to boot. Just want to make sure everything is good before the purchase.
Old 07-19-2005, 06:24 PM
  #20  
TECH Apprentice
Thread Starter
 
Ruffrider5.3's Avatar
 
Join Date: Jun 2005
Location: Tampa,FL
Posts: 300
Likes: 0
Received 0 Likes on 0 Posts
Default

Well I dont really believe in inline pumps due to the fact that you are limited to the flow of the intank pump, correct me if I'm wrong but if your intank flows lets say 100l and you have a 255l in line the how the hell is it pumping 255? I may not understand the whole thing but it seems logical.


Quick Reply: Ok, done with the in tank pump. Come in.



All times are GMT -5. The time now is 05:27 PM.