LS3 first time start up

[rallystyle]

pull the oil pressure sensor use a funnel and poor some oil in the motor that way. i will fill the filter and some of the galleys with oil. turn it over with no plugs and no fuel. you will have pressure fast.

[jlwdvm]

Interesting. It would build pressure faster than just doing GM's recommendation, but it wouldn't get any oil into the valve train....correct?

[79 Camaro]

Couple of other things.

1. The cool thing about the fuel injected LS engines is if everything is hooked correctly as soon as it has fuel pressure to the injectors it will fire up and run. No messing with timing and such. I like to have the car on jack stands so you can run it slowly thru gears off the ground for the first time.

2. As it warms up check for coolant flow. Sometimes you need to open up the coolant crossover to let some trapped air out.

3. If this is a drive by cable and you have a bigger cam you might have to open up throttle blade a bit to get it to idle.

I've done a half a dozen new LS start-ups. Just primed with the starter with the power to the computer off. Never had a lick of trouble.

Good luck.

[jlwdvm]

I was able to make a pressurized oil primer out of a 5 gallon Harbor Freight air tank, a 3/8 valve, a few fittings, 2 10AN oil line fittings i will be using for oil cooler lines, a fitting for the front side oil galley, and a mechanical oil pressure gauge tapped into the oil cross over above the filter. I also used a 4' piece of clear 3/4" rubber hose to get the oil from the tank to the motor (so I know when the tank is empty). I screwed the AN fittings into the hose and clamped them. Since I already had the AN fittings (that I will be using later) and a few other odds and ends, I spent a little over $30. As far as I can tell, the pressurized oil will enter the block and travel through the filter before moving through the rest of the oil system.

I got several gallons of distilled water to fill the rad. I have 10 gallons of 93 in the fuel tank. I also hooked up the battery and made sure the electrical system didn't start to burn up (the whole car was wired from scratch with an AAW Power Plus 20 system)! I was checking a few areas for 12 volts and turned the key a little too far and the starter turned over for a millasecond! The car might run this weekend after a 2 year install!

[cspecken]

Please post some pictures of the setup you have created, how it is hooked up and let us know how it works out. I am in the same stage as you.

Thanks in advance

[badazz81z28]

Originally Posted by cspecken

Please post some pictures of the setup you have created, how it is hooked up and let us know how it works out. I am in the same stage as you.

Thanks in advance

I made a pre-luber out of a $8 bug sprayer with some AN fittings. Total cost was about $20 and I even sold it on PT.com after I used it.

Worked great.

post # 3

http://ls1tech.com/forums/generation...l-priming.html

[Vega$69]

You mention you have distilled water in the radiator. You should also have about 30% coolant for pump lubrication and corrosion resistance.

[jlwdvm]

The car is going to see a lot of track time, so I will be adding a bottle of Joe Gibbs cooling system additive.

[79 Camaro]

That's one of the coolest things about the first start on a LS. Turn the key, wait for the fuel pump to run and then shut off, then turn all the way to crank and it starts and runs.

[jlwdvm]

I have a problem...check this out: https://lateral-g.net/forums/showthread.php4?t=52255