Go Back   North East F-Body Association > Tech > LSX Powertrain

Reply
 
Thread Tools Display Modes
  #1  
Old 01-25-2011, 08:16 AM
bottledbird68 bottledbird68 is offline
Build,beat,break,repeat..
 
Join Date: Jan 2010
Location: Athol MA
Posts: 1,980
Post Thanks / Like
Thanks (Given): 8
Thanks (Received): 19
Likes (Given): 27
Likes (Received): 74
Dislikes (Given): 12
Dislikes (Received): 4
Default Fuel system for lsx turbo swap

Ok, decided to ditch my old fuel cell/aeromotive pump setup on my 68 in favor of a factory style tank with in tank pump/pumps.
I want my trunk back so I have somewhere to put stuff when going places with the family.

Anyhow, done some looking and I think I've settled on a 94-96 caprice gas tank. People have swapped them in with what appears to be good results. This will not only get me a 23 gallon capacity it will also give me a tank with a modern style in tank efi pump/pick up assbly. It will also be about a tenth of the price of any of the aftermarket bolt in tanks for my car so there's another bonus.

Anyhow, I'm shooting for around 600rwhp with a turbo on my lq4. I'd like to keep an in tank pump set up. I'm thinking twin walboro 255's? What about a single walboro 340? Or, are there other better/more cost effective options out there? And, if I do run dual pumps is it really worth running the second pump on a Hobbs switch or just run them both all the time?

Also, what should I do for lines? I had -10 pushlock hose for a feed but I think I want to clean that up and run hard line front to back and only have a couple flex sections where needed. I see most only go to -8. Which should I go with?

Also, at what point do you NEED to upgrade the fuel rails? I'm plannig on 60lb injectors but if stock rails will be ok I'd just as soon keep them. If not then I'll go shopping.

Been searching around for a couple hours but I keep getting mixed results. I'm on a tight budget with everything I have planned this year so I don't want to spend more then necessary but don't want to do it half assed either.
Any input?
__________________
The fleet...
Reply With Quote
  #2  
Old 01-25-2011, 11:53 PM
ILuvPizzaTimes10's Avatar
ILuvPizzaTimes10 ILuvPizzaTimes10 is offline
YOUR ALL GUNNA DIE!!!
 
Join Date: Oct 2009
Location: Randolph, MA
Posts: 9,380
Post Thanks / Like
Thanks (Given): 21
Thanks (Received): 192
Likes (Given): 65
Likes (Received): 587
Dislikes (Given): 25
Dislikes (Received): 83
Default

........ tl/dr
__________________


1998 Firebird:buncha parts thats used to make it go fast..... not so much anymore.
BAAAAAA!!!!!!
Reply With Quote
  #3  
Old 01-26-2011, 12:04 AM
bottledbird68 bottledbird68 is offline
Build,beat,break,repeat..
 
Join Date: Jan 2010
Location: Athol MA
Posts: 1,980
Post Thanks / Like
Thanks (Given): 8
Thanks (Received): 19
Likes (Given): 27
Likes (Received): 74
Dislikes (Given): 12
Dislikes (Received): 4
Default

Quote:
Originally Posted by ILuvPizzaTimes10 View Post
........ tl/dr
Wut?
__________________
The fleet...
Reply With Quote
  #4  
Old 01-26-2011, 12:43 AM
Slowhawk Slowhawk is offline
choking the wrench
 
Join Date: Oct 2009
Posts: 1,526
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 55
Likes (Given): 0
Likes (Received): 250
Dislikes (Given): 0
Dislikes (Received): 5
Default

340 intank with Kennebell boost a pump. That would keep the factory fuel pump. Dual pumps require cutting the bucket open which isn't fun on a flat bottom tank.

-8 feed line with -6 return. Fuel rails are better than the stock one because the stock one could starve cyl 2+8. Or 3/8 hard lines will work.

Pretty simple really.
Reply With Quote
  #5  
Old 01-26-2011, 12:52 AM
bottledbird68 bottledbird68 is offline
Build,beat,break,repeat..
 
Join Date: Jan 2010
Location: Athol MA
Posts: 1,980
Post Thanks / Like
Thanks (Given): 8
Thanks (Received): 19
Likes (Given): 27
Likes (Received): 74
Dislikes (Given): 12
Dislikes (Received): 4
Default

So the single 340 will be enough to feed approx 600 rwhp then. At what point does the 340 lph pump max out?
Didn't even think about the boost a pump but yeah I'd rather not cut the bucket apart since I'm building the car to corner and don't want to deal with fuel starvation when I'm out using it.
And I'm liking 3/8 hard line with something flexible to connect to the tank and to attach to the rails. Just wasn't sure if 3/8 would be large enough. I trust your opinion there though.
__________________
The fleet...
Reply With Quote
  #6  
Old 01-26-2011, 12:53 AM
bottledbird68 bottledbird68 is offline
Build,beat,break,repeat..
 
Join Date: Jan 2010
Location: Athol MA
Posts: 1,980
Post Thanks / Like
Thanks (Given): 8
Thanks (Received): 19
Likes (Given): 27
Likes (Received): 74
Dislikes (Given): 12
Dislikes (Received): 4
Default

Another thought, at what point do you recommend upgrading the fuel rails?
__________________
The fleet...
Reply With Quote
  #7  
Old 01-26-2011, 01:07 AM
ls6monte's Avatar
ls6monte ls6monte is offline
Sticker Bitch
 
Join Date: Oct 2009
Location: Holbrook,Ma
Posts: 3,494
Post Thanks / Like
Thanks (Given): 0
Thanks (Received): 92
Likes (Given): 0
Likes (Received): 230
Dislikes (Given): 0
Dislikes (Received): 36
Default

Quote:
Originally Posted by ILuvPizzaTimes10 View Post
........ tl/dr
Too Long / Didn't Read
__________________
Ron
85 Monte SS, 2004 Corvette LS6 w/02 T56, 9" rearend, 390/364 rwhp/tq ,Slowhawk tuned, 3575 lbs
11.74@114.6mph
BACK IN THE GAME!!
DD 06 Cobalt SS/sc, stock w/k+n only
14.78@97mph

http://www.cardomain.com/ride/2151623
http://www.racecarsbyhalls.com
http://www.slowhawkperformance.com

Another show Lady- Why does your car say Corvette on the engine? We have a Corvette and your car doesn't look like one. LMFAO
Reply With Quote
  #8  
Old 01-26-2011, 01:38 AM
bottledbird68 bottledbird68 is offline
Build,beat,break,repeat..
 
Join Date: Jan 2010
Location: Athol MA
Posts: 1,980
Post Thanks / Like
Thanks (Given): 8
Thanks (Received): 19
Likes (Given): 27
Likes (Received): 74
Dislikes (Given): 12
Dislikes (Received): 4
Default

Quote:
Originally Posted by ls6monte View Post
Too Long / Didn't Read
Well excuse me for giving all the information required to make an informed answer
__________________
The fleet...
Reply With Quote
  #9  
Old 01-26-2011, 02:10 AM
ILuvPizzaTimes10's Avatar
ILuvPizzaTimes10 ILuvPizzaTimes10 is offline
YOUR ALL GUNNA DIE!!!
 
Join Date: Oct 2009
Location: Randolph, MA
Posts: 9,380
Post Thanks / Like
Thanks (Given): 21
Thanks (Received): 192
Likes (Given): 65
Likes (Received): 587
Dislikes (Given): 25
Dislikes (Received): 83
Default

wouldn't it have been an Informed Question.....
__________________


1998 Firebird:buncha parts thats used to make it go fast..... not so much anymore.
BAAAAAA!!!!!!
Reply With Quote
  #10  
Old 01-26-2011, 02:56 AM
bottledbird68 bottledbird68 is offline
Build,beat,break,repeat..
 
Join Date: Jan 2010
Location: Athol MA
Posts: 1,980
Post Thanks / Like
Thanks (Given): 8
Thanks (Received): 19
Likes (Given): 27
Likes (Received): 74
Dislikes (Given): 12
Dislikes (Received): 4
Default

Quote:
Originally Posted by ILuvPizzaTimes10 View Post
wouldn't it have been an Informed Question.....
Ah yes, but how do you give an informed answer without an informative question?
__________________
The fleet...
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT. The time now is 04:53 AM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.