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Engine Build - Going Turblowed

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Old Jan 7, 2015 | 03:55 AM
  #41  
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For a real measurement you need piston in/out of hole
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Old Jan 7, 2015 | 07:54 AM
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Originally Posted by JordanRN
Trying to figure out the Compression Ratio on this build.

Bore Size: 3.780
Stroke: 3.622
Head Gasket Bore: 4.1
Compressed Head Gasket: 0.051
Head Combustion Chamber: 64.45
Piston Dome Volume: -2 ( I've seen -7, -8, -9 )

Stock pistons
Any input?
Using 9 cc for piston dish
Slugs -.006 out of the hole---iron blocks deck height at 9.23"
.051 gasket
61.15 cc for the stock 5.3 chambers
I came up with 9.49. Close to the factory rating.
Guessing 8 cc instead with the pistons at zero deck also came up
about the same, as I've not personally measured one.
So just replacing the heads with a 64.45 chamber knocked it down
to a boost friendly 9.15
You might as well just put the LS9 gaskets on now w/ studs...
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Old Jan 7, 2015 | 12:06 PM
  #43  
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Originally Posted by A.R. Shale Targa
Using 9 cc for piston dish
Slugs -.006 out of the hole---iron blocks deck height at 9.23"
.051 gasket
61.15 cc for the stock 5.3 chambers
I came up with 9.49. Close to the factory rating.
Guessing 8 cc instead with the pistons at zero deck also came up
about the same, as I've not personally measured one.
So just replacing the heads with a 64.45 chamber knocked it down
to a boost friendly 9.15
You might as well just put the LS9 gaskets on now w/ studs...
Way ahead of you. .

All that's left with the build is to bolt the intake up, hook up wire harness, bolt up trans and drop her in.
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Old Jan 11, 2015 | 06:47 PM
  #44  
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Managed to get the remaining parts of the engine together and into the car!

Primed it while it was on the lift to get oil flowing, sounded good trying to start.

We're going to start it tomorrow and hope for the best!

Videos will be posted soon.
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Old Jan 12, 2015 | 11:10 AM
  #45  
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Originally Posted by JordanRN
Managed to get the remaining parts of the engine together and into the car!

Primed it while it was on the lift to get oil flowing, sounded good trying to start.

We're going to start it tomorrow and hope for the best!

Videos will be posted soon.

That's great. Glad to hear it. Looking forward to the video.
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Old Jan 13, 2015 | 08:16 PM
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Since the weather didn't cooperate yesterday, we started it today!

Last item is the steering knuckle which I forgot and the torque arm.

Going to assume the P0300 code is normal since I'm using a 5.7 tune instead of 5.3?

Initial Start
Second Start


Last edited by JordanRN; Jan 13, 2015 at 08:33 PM.
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Old Jan 16, 2015 | 09:09 AM
  #47  
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Curious on what fuel I should be running in the car now that it's a lower compression. We're guessing its around 9:1, so should I still be running 93octane or am I just wasting my money?

Thanks,
Jordan
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Old Jan 16, 2015 | 12:45 PM
  #48  
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You will be wasting your money.

Last edited by bbond105; Jan 17, 2015 at 09:52 AM.
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Old Jan 16, 2015 | 11:00 PM
  #49  
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Got to drive the car again for the first time in a month and I fell in love all over again. Have a few items to still work on; dead o2s, front sway bar and tune.

Overall she did great on her first voyage. Feels about the same as my LS1 power wise which is what I was hoping for.
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Old Feb 1, 2015 | 12:47 AM
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Finally got the exhaust put on, X Pipe dumped before the axels. Had my local tuner make it more driveable and I'm amazed how well it still hauls *** for being a 5.3 with a baby cam.

Will get some dyno numbers soon as well as some videos.

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Old Feb 2, 2015 | 10:55 AM
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Due for an oil change here shortly. Up to about 300 miles on the engine so far.

Any tricks to quite the valve train noise?

Anything else I should go over after the oil change as well?
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Old Feb 3, 2015 | 05:28 PM
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Originally Posted by JordanRN
2001 Firebird Formula 5.3 Swap Idle - YouTube

Due for an oil change here shortly. Up to about 300 miles on the engine so far.

Any tricks to quite the valve train noise?

Anything else I should go over after the oil change as well?
You could try switching your oil to Mobil 1 0W40...euro blend was a tad quieter for my valvetrain noise...but aggressive XER lobes are just noisy !!
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Old Feb 3, 2015 | 05:58 PM
  #53  
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Originally Posted by A.R. Shale Targa
You could try switching your oil to Mobil 1 0W40...euro blend was a tad quieter for my valvetrain noise...but aggressive XER lobes are just noisy !!
Good to know, first cam car. The butt dyno says she's pretty quick, waiting on a few more miles to throw her on the real dyno though.
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Old Feb 14, 2015 | 06:50 PM
  #54  
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Dyno results are in! Off the bottle results

I would like to thank everyone who helped me along the way.


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Old Feb 14, 2015 | 07:37 PM
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Those are pretty good numbers for a 5.3 with low compression. The torque is what points to that; but man when you hit the giggle gas, that stock trans/converter are going to hate your guts......
I'd bet the hundred shot goes to 500/500 range......
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Old Feb 15, 2015 | 04:11 PM
  #56  
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Originally Posted by A.R. Shale Targa
Those are pretty good numbers for a 5.3 with low compression. The torque is what points to that; but man when you hit the giggle gas, that stock trans/converter are going to hate your guts......
I'd bet the hundred shot goes to 500/500 range......
Selling the giggle gas for turbo setup. Should be within the next month I'll have it ready to install.
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Old Feb 15, 2015 | 05:56 PM
  #57  
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Hi, when using 5.3 what did you use for your valley pan 5.3 or 5.7 . Do you have a pic of it? The reason I ask I just got a 5.3 and there are no knock sensors in the 5.3. I havn't pulled it apart yet -20 cold ill take the rain any day
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Old Feb 15, 2015 | 06:51 PM
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Originally Posted by hpadder
Hi, when using 5.3 what did you use for your valley pan 5.3 or 5.7 . Do you have a pic of it? The reason I ask I just got a 5.3 and there are no knock sensors in the 5.3. I havn't pulled it apart yet -20 cold ill take the rain any day

https://ls1tech.com/forums/generatio...l#post18572732

Look at 4th picture. That's where the knock sensors are. I used my 5.7 valley cover as they were the same
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Old Feb 15, 2015 | 07:34 PM
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Thanks for the reply my 2010 doesnt have any so I hope someone replies to my post. Thanks again
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Old Feb 16, 2015 | 07:39 AM
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Originally Posted by hpadder
Thanks for the reply my 2010 doesnt have any so I hope someone replies to my post. Thanks again
2010 5.3?

I think those may be on the side of the block now.
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