Conversions & Swaps LSX Engines in Non-LSX Vehicles
Sponsored by:
Sponsored by:

Help! Start-up; am I ready?

Thread Tools
 
Search this Thread
 
Old May 17, 2013 | 01:25 AM
  #1  
andysfbird's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2010
Posts: 62
Likes: 0
From: Bakersfield CA
Default Help! Start-up; am I ready?

Hey folks, this day is a long time coming. Everyone has had to put up with me, my passion for car-parts has interrupted my co-workers on a daily basis, my long hours under the garage light for a year and a half straight. The 30,000.00+ I spent on the restoration and conversion of my 1967 "badassbird". Well, its time for a start up party! That's right with a band a pool a taco lady, and everyone (well at least me) excited for "the start-up".

The oil system, Check
The Water system, Radiator and fans, Check
the Power Steering system, check
The electrical system, crossing my fingers
The air intake, check
the exhaust, loud with straight headers
The T56 and new drive line, check
Deodorant, check

Now for the fuel system; I went ahead and installed a dual line with the reg on the rail per S&P's recommendation. For now I have Nylon hoses with stainless fittings. I Traded the bleeder for a fuel gauge.
Do I need to know or do something to the critical fuel system?
do I need to bleed the lines? Get the air out? I've been told that if the injectors see air they will snap shut. If this is true, how critical is this?

The car is now virtually brand new. I've installed the ls1 and T56 xmission. Autometer gauges audiovox security system, led lights throughout with digitails for the rear lights, tubular a arms with a lowered suspension. Painted it Torch red, Keyless entry, power windows, Four fuse boxes, Custom billet shelves for all the new electronics utilizing the space behind the headlights. Battery in the trunk system, Magnum shooters instead of wiring for the door electronics, Hurst shifter, remote power steering res., a Kwik bracket system for A/C and alternator, a Vintage air Heating and cooling system, disk brakes, a clutch pedal with hydraulics, had the gearbox re-done with 3.5 instead of the 4.5 lock to lock gearing, re-wired the headlight system, installed a hidden PCM (behind the right fender well) Tinted all the new glass and yes even the windshield. Fuel pump installation in the existing tank. Not to mention a full blown, body-off, from the ground up restoration. Whew!

I still need a 3:73 rear-end with posi. a local shop quoted me 1300. and a header-back exhaust system and some sort of a rear suspension to handle the new horsepower. I am considering a ride-tech suspension with an added sway bar and subframe connectors. Ride tech makes a roll-cage for the bird, does anyone have experience with this?

I have virtually done all this work myself (and the help of you all) and all for the first time and would appreciate any help for startup. I know I have to get the PCM down to a local shop for tune-up but can I start it without doing that? I mean will it fire-up?
Reply
Old May 17, 2013 | 02:23 AM
  #2  
ls1nova71's Avatar
TECH Veteran
15 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (4)
 
Joined: Jan 2008
Posts: 4,406
Likes: 211
From: Liberty, MO
Default

You say the PCM hasn't been tuned, but have you at least deleted the VATS? If not, your excitment will be short lived. It will start and die. Also, I usually start them before putting all the hoses and coolant in it incase you need to pull it back out. Starting it for a few seconds won't hurt anything. As for yout fuel system, just turn the key on and off a few times to prime it and make sure there are no leaks. No need to bleed any air on a return style rail. Good luck with the start up, its always a great feeling when they come to life for the first time!
Reply
Old May 17, 2013 | 07:42 AM
  #3  
Old Geezer's Avatar
TECH Senior Member
iTrader: (3)
 
Joined: Jun 2004
Posts: 5,639
Likes: 71
From: GA, USA
Default

NO antifreeze in the cooling system, on first start!
Some "spin time" to get some oil psi... Plugs out, injs inop.
Injs cleaned, or have they been sitting for an extended period?
Open headers with the O2 sensors close to the collectors will/may cause air fuel issues.
Headers coated? If so, wipe them w/ alcohol to get the finger prints, grease off.
Put a large fan in ft of the rad. This will help w/ air flow over the headers, so the coating doesn't cook off. [Also helps w/ controlling engine temp.]
Reply
Old May 17, 2013 | 07:48 AM
  #4  
i r teh noobz's Avatar
TECH Resident
iTrader: (4)
 
Joined: Feb 2009
Posts: 784
Likes: 0
From: Ohio
Default

It won't fire without a VATS delete.

I've never had to bleed a fuel rail, just bump the key a few times and crank away.
Reply
Old May 17, 2013 | 12:53 PM
  #5  
Pfadt Racing's Avatar
FormerVendor
 
Joined: Apr 2013
Posts: 88
Likes: 0
Default

The vats will kill the starting. You can buy a tool to get oil pressure up for the initial start as well


Reply
Old May 17, 2013 | 08:13 PM
  #6  
andysfbird's Avatar
Thread Starter
Staging Lane
 
Joined: Dec 2010
Posts: 62
Likes: 0
From: Bakersfield CA
Default

I am really excited to get this girl running. Couple of things you guys mentioned. I already have antifreeze in so should I dump it, i mean how critical is this? The injectors have been sitting for about 1 1/2 years. The Vats I believe is gone when they flashed the PCM? Under what circumstances will the ceramic coating cook off?
Reply
Old May 17, 2013 | 09:46 PM
  #7  
V8Rumble's Avatar
TECH Fanatic
iTrader: (9)
 
Joined: Aug 2007
Posts: 1,237
Likes: 1
From: Rocky Mtn thin air & snow...
Default

Originally Posted by ls1nova71
Also, I usually start them before putting all the hoses and coolant in it in case you need to pull it back out. Starting it for a few seconds won't hurt anything. As for yout fuel system, just turn the key on and off a few times to prime it and make sure there are no leaks. No need to bleed any air on a return style rail. Good luck with the start up, its always a great feeling when they come to life for the first time!
Having antifreeze in it won't hurt anything - as stated above, that's just in case you discover something that requires removing the engine again, it's just one less thing to have to do. If you already have it in, I wouldn't take it out unless you need to.
Reply
Old May 17, 2013 | 09:50 PM
  #8  
aknovaman's Avatar
TECH Addict
15 Year Member
Liked
iTrader: (7)
 
Joined: Apr 2007
Posts: 2,012
Likes: 111
From: Hog Back, KS
Default

I fill them with just water as it is easier to fix leaks and not spray antifreeze all over a newly assembled car. Once there are no leaks and all is good, drain. Water and fill with good stuff.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo




All times are GMT -5. The time now is 07:58 PM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE