Notices
Forced Induction Superchargers | Turbochargers | Intercoolers

Anyone running twins on stock 5.3?

 
Old 10-20-2016, 11:14 PM
  #1  
TECH Addict
Thread Starter
iTrader: (15)
 
Join Date: Nov 2009
Location: Western PA
Posts: 2,502
Likes: 0
Received 0 Likes on 0 Posts
Default Anyone running twins on stock 5.3?

After helping with my single 76 L33 build my buddy is starting on his own project, a 1940s Thames panel truck gasser build. After doing a single on my car he decided he wants to try some twins. Plan is to use the Engine he has which is a bone stock 5.3 with no intentions of opening it up other than swapping out for some PAC 1218s and an ls1 intake for hood clearance, plan is to use tried and true 80#ers with necessary fuel system. He is looking for somewhere in the 5-600whp range on pump gas no meth. No ET goals or anything serious like that just building a fun cruiser for the fun of building a different that just got pulled out of storage after 30 years.
Just curious what a popular size/brand guys are having good luck with. There are tons of options from what I have seen but no sense in reinventing the wheel since I see a lot of guys that have sorted well designed projects and figure I should tap into knowledge here so I can pass it along.
wildcamaro is offline  
Old 10-21-2016, 08:05 AM
  #2  
TECH Enthusiast
 
Join Date: Sep 2013
Location: Mechanicsburg, PA
Posts: 582
Likes: 0
Received 0 Likes on 0 Posts
Default

Check out this build. It would fit your buddies needs and spools lightning fast. I've seen it run in person. And it a relatively inexpensive set up as well.

https://ls1tech.com/forums/forced-in...ing-twins.html

Are you planning on running E85? That or pump gas and meth without an intercooler would fit better in the Thames. That thing will be an animal with 600rwhp. and an 80 something inch wheelbase!
Bad Apache is offline  
Old 10-21-2016, 09:23 AM
  #3  
On The Tree
iTrader: (1)
 
Join Date: Jun 2014
Location: Granite city il
Posts: 171
Likes: 0
Received 0 Likes on 0 Posts
Default

I'm doing a 5.3 TT build sill a few months from running but it should be nice when done.
https://ls1tech.com/forums/forced-in...ime-build.html
Busted67 is offline  
Old 10-22-2016, 01:59 PM
  #4  
TECH Fanatic
 
Join Date: Jun 2013
Location: CLEVELAND
Posts: 1,138
Likes: 0
Received 0 Likes on 0 Posts
Default

Twin 50 trims will get you to your goals. I would not go larger than 61s.
coltboostin is offline  
Old 10-22-2016, 08:53 PM
  #5  
TECH Addict
Thread Starter
iTrader: (15)
 
Join Date: Nov 2009
Location: Western PA
Posts: 2,502
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Bad Apache View Post
Check out this build. It would fit your buddies needs and spools lightning fast. I've seen it run in person. And it a relatively inexpensive set up as well.

https://ls1tech.com/forums/forced-in...ing-twins.html

Are you planning on running E85? That or pump gas and meth without an intercooler would fit better in the Thames. That thing will be an animal with 600rwhp. and an 80 something inch wheelbase!

Just planning on good ole 93 pump gas...I took a look at that thread you posted but didn't see the what specific turbos he was using listed?
wildcamaro is offline  
Old 10-22-2016, 09:18 PM
  #6  
Teching In
 
Join Date: Jan 2006
Location: Monroe,LA
Posts: 18
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by wildcamaro View Post
Just planning on good ole 93 pump gas...I took a look at that thread you posted but didn't see the what specific turbos he was using listed?
His signature says 50mm twins. Not sure which specific ones though....
03chevytruck is offline  
Old 10-22-2016, 11:13 PM
  #7  
Teching In
iTrader: (1)
 
Join Date: May 2008
Location: Alton, IL
Posts: 45
Received 0 Likes on 0 Posts
Default

Bone stock 5.3 with nothing but valve springs. They are twin t3 55mm compressors. Cheapo ebay internal wastegate units. Still sorting out issues, but it spools extremely quick. Into positive pressure by 2300rpm.


DeboDaddy is offline  
Old 10-23-2016, 07:03 AM
  #8  
TECH Enthusiast
 
Join Date: Sep 2013
Location: Mechanicsburg, PA
Posts: 582
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by wildcamaro View Post
Just planning on good ole 93 pump gas...I took a look at that thread you posted but didn't see the what specific turbos he was using listed?

Page 4 has a link to them. I think 57's.
Bad Apache is offline  
Old 10-24-2016, 03:07 PM
  #9  
TECH Addict
Thread Starter
iTrader: (15)
 
Join Date: Nov 2009
Location: Western PA
Posts: 2,502
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Bad Apache View Post
Check out this build. It would fit your buddies needs and spools lightning fast. I've seen it run in person. And it a relatively inexpensive set up as well.

https://ls1tech.com/forums/forced-in...ing-twins.html

Are you planning on running E85? That or pump gas and meth without an intercooler would fit better in the Thames. That thing will be an animal with 600rwhp. and an 80 something inch wheelbase!
Yea it should be pretty dang cool when raked and rolling...still trying to figure out intercooler or non-intercooled with meth, Turbo location, etc...

Name:  D8B34279-2EB0-44C5-9A57-E8AA4E0856BA_zps2nivhpao.jpg
Views: 893
Size:  306.6 KB
wildcamaro is offline  
Old 05-07-2017, 07:12 AM
  #10  
Staging Lane
 
Join Date: Apr 2017
Location: Dallas Tx
Posts: 84
Likes: 0
Received 0 Likes on 0 Posts
Default

Any updates with your buddies project? I'm starting my twin turbo build with .67/70s.
moe4541 is offline  
 


Thread Tools
Search this Thread
Quick Reply: Anyone running twins on stock 5.3?


About Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: