LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Seeking stock LT1 engine info.

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Old Sep 6, 2005 | 02:02 PM
  #1  
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Seeking stock LT1 engine info.

trying to input info into Dynosim, and the power curves are way off... indicated flywheel HP is below my RWHP. so i have some inaccurate data in it. Cam specs, flow specs, etc is what im looking for.
Whats in blue text can be changed, Yellow cannot.


DynoJet Dyno reading, 236 is RWHP and 290 RWTRQ.


Old Sep 6, 2005 | 03:03 PM
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Re: Seeking stock LT1 engine info.

http://www.ls1tech.com/forums/showth...52#post2682252

Anything I've ever wanted to know about an LT1's stock specs is there.
Old Sep 6, 2005 | 03:06 PM
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Re: Seeking stock LT1 engine info.

Didn't I already post something with the specs in your LS1tech.com thread?
Old Sep 6, 2005 | 03:15 PM
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Re: Seeking stock LT1 engine info.

And as you would see i responded that i found the proper cam LSA/Centerline and that it wasn't enough to affect the curves much at all. not nearly enough to get it to expected levels. LS1Tech is LS1Tech. CZ28 is CZ28. just because you and i are in both places, doesn't mean others with good info are.
Old Sep 6, 2005 | 03:31 PM
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Re: Seeking stock LT1 engine info.

I wasn't applying that but ok. You asked for stock LT1 engine info, and that is what I gave you. Maybe you should rephrase what you're asking for.
Old Sep 6, 2005 | 03:46 PM
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Re: Seeking stock LT1 engine info.

Correct, you did. but what was seen wasn't enough. and why should i rephrase what is done well enough? Cam Specs, Flow Spec. ETC.
Old Sep 6, 2005 | 04:55 PM
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Re: Seeking stock LT1 engine info.

here's what happened when i fed in stock cam data from the other link..

Errr... WTF? nearly 400TRQ right at the outset? me thinks somthing funky is up. I only included changed data.

Headflow data.
Old Sep 6, 2005 | 08:43 PM
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Re: Seeking stock LT1 engine info.

Don't expect the Dynosim to show you reality - it won't. IMO it's not even close. I have it and I only use it to see the differences between changes. So, only compare Dynosim graphs to Dynosims graphs. Don't compare it to reality.
Old Sep 6, 2005 | 09:43 PM
  #9  
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Re: Seeking stock LT1 engine info.

I dont expect spot on accurancy. 15% or so variance would be fine. nearly impossible for mathmatical calculations to handle minute variances in a individual engine that can either hamper or help performance.
Old Sep 6, 2005 | 09:51 PM
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Re: Seeking stock LT1 engine info.

I tried the same thing on DesktopDyno 2000 and got 285HP and about 360 or so ft lbs.
Old Sep 6, 2005 | 10:00 PM
  #11  
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Re: Seeking stock LT1 engine info.

tried what same thing? the settings from my images?
Old Sep 6, 2005 | 10:02 PM
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Re: Seeking stock LT1 engine info.

Originally Posted by NOVA5
tried what same thing? the settings from my images?
Not the exact settings, but I tired simulating a stock LT1.
Lemme see if I can get a screen capture.
Old Sep 6, 2005 | 10:08 PM
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Re: Seeking stock LT1 engine info.

Is there a SFI option under intake manifold type in that program?

http://www.ls1camaro.net/freehosting/stockLT1sim.JPG
Old Sep 6, 2005 | 10:22 PM
  #14  
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Re: Seeking stock LT1 engine info.

Here's what i've got under intake.
Old Sep 6, 2005 | 10:32 PM
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Re: Seeking stock LT1 engine info.

I got about 15 HP less with the TPI intake option

http://www.ls1camaro.net/freehosting/tpi.JPG



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