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

355 LE2 Set up. Dyno Day

Old Apr 30, 2006 | 11:31 AM
  #16  
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Re: 355 LE2 Set up. Dyno Day

Awesome numbers!
Old Apr 30, 2006 | 02:30 PM
  #17  
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Re: 355 LE2 Set up. Dyno Day

What did it dyno SAE corrected? STD doesn't really tell us much without the conditions listed.
Old Apr 30, 2006 | 03:19 PM
  #18  
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Re: 355 LE2 Set up. Dyno Day

http://impalassforum.com/noncgi/ulti...c;f=1;t=010563

Here is his thread over on the Imp boards.

Bret
Old Apr 30, 2006 | 03:28 PM
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by tireburnin
What did it dyno SAE corrected? STD doesn't really tell us much without the conditions listed.
STD is a correction factor (for conditions) as well. SAE is just a metric correction that is more common.
Old Apr 30, 2006 | 07:01 PM
  #20  
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by 93 4mula
Get it dyno tuned!
Put down the bong.
Old Apr 30, 2006 | 09:31 PM
  #21  
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by Ram Air 383
STD is a correction factor (for conditions) as well. SAE is just a metric correction that is more common.
And the sun is hot!

STD correction factor isn't compareable to SAE unluess the conditions were exactly the same. If this dyno was done in 45 degree weather at 7pm during a high pressure event it would be different than what everyone else uses. Posting, "I dyno'd 1,000rwhp" when I put the barometer at 60 for the dyno session isn't useful information.
Old May 1, 2006 | 01:00 AM
  #22  
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Re: 355 LE2 Set up. Dyno Day

Just wandering,how many miles are guys getting on the engine with the LE setups or any 370+RWHP setup? Also how often should the valve springs be changed on these cams if it was just daily driven?
Old May 1, 2006 | 11:01 AM
  #23  
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Re: 355 LE2 Set up. Dyno Day

Uh, any correction factor CORRECTS! the raw output back to a fixed temp/barometer setting.

STD = 60°F and 29.92"
SAE = 77°F and 29.6"

Maybe you need to read up a little bit on these things before you start correcting people.


bhop42,

The valvesprings should be looked at around 10,000 miles just to make sure they are ok. How many miles a year are you going to drive?

Bret
Old May 1, 2006 | 12:37 PM
  #24  
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by SStrokerAce
Uh, any correction factor CORRECTS! the raw output back to a fixed temp/barometer setting.

STD = 60°F and 29.92"
SAE = 77°F and 29.6"

Maybe you need to read up a little bit on these things before you start correcting people.
Really! Now you both have pointed out the obvious.

But which one do MOST people and shops use to eliminate inflated numbers? Which one assumes a lower temperature and higher pressure? Which one sells more parts?

Thus the reason I asked what it put down SAE corrected.

I can see from the other post in the link you posted that the runs were in fairly normal conditions. But the original questions never got answered, only people telling me that it is corrected to an inflated number.
Old May 1, 2006 | 12:39 PM
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by 93 4mula
I think you can get a little more out of that. Get it dyno tuned! A buddy of mine has the same exact setup and had his dyno tuned and laid down 417rwhp.
FYI Bryan works for PCM for Less.com
Old May 1, 2006 | 12:48 PM
  #26  
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by tireburnin
Really! Now you both have pointed out the obvious.

But which one do MOST people and shops use to eliminate inflated numbers? Which one assumes a lower temperature and higher pressure? Which one sells more parts?

Thus the reason I asked what it put down SAE corrected.

I can see from the other post in the link you posted that the runs were in fairly normal conditions. But the original questions never got answered, only people telling me that it is corrected to an inflated number.


The car is a bracket race only vehicle - are you really that tied up in dyno numbers? You know what the dyno means to me? About squat - it's a freaking tool. You want to know how the car runs, take it to the track.

You seem to be whining a lot about the correction factor - big freaking deal, it's going to be close either way you correct it. Wait for us to post what the car runs at the track and then chime in about the altitude that we run at

Brett - excellent job on the cam - the car is pulling hard, runs great thru the entire RPM range. Lloyd - i'm amazed considering that I know the specs of the cam and heads - simply amazed.

Sorry for the rant guys - i'm not a "My dick is bigger than your dick" kinda guy.

Racing dyno sheets just isn't that much fun to me. "I put down 7 zillion horsepower on an 80 degree day corrected to the QWERTY standard blah blah blah"

"Oh yeah? What's the car run?"
"Well, umm, err, you see, my muffler bearing is...."
"Yep - just what I thought"


Anyway - congrats John - i'm telling you i'm the luckiest guy around, I have 2 nice 11 second cars in my garage!!!!!"

Old May 1, 2006 | 02:21 PM
  #27  
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Re: 355 LE2 Set up. Dyno Day

Originally Posted by tireburnin
Really! Now you both have pointed out the obvious.
Well since before you claimed that the CONDITIONS could alter the numbers, I thought you needed a CORRECTION to your thinking since the weather doesn't matter when using either correction factor. If the dude cared about numbers he would have locked the freaking converter. lol

FWIW and to point out the "obvious" to you again SAE is usually 5% lower than STD.

Bret
Old May 1, 2006 | 02:29 PM
  #28  
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Re: 355 LE2 Set up. Dyno Day

What's the big deal about locking the converter? Do people view that as cheating or another way to inflate the numbers?
Old May 1, 2006 | 02:29 PM
  #29  
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Re: 355 LE2 Set up. Dyno Day

Here's my own opinion on the DYNO numbers. My car all bolt ons, Iron heads
with 1.6RR. Put down 259/307. That's it. Made over 200 passes bracket racing at 3 tracks. Avg. 13.04 1.7 60' 103MPH. Best time 12.80,1.70 60' 105MPH. The way I look at it, The LE2 package is a Huge increase for a 355 NA.
Can't wait for the track this year. I don't correct my time slips for perfect conditions either.
Old May 1, 2006 | 02:37 PM
  #30  
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Re: 355 LE2 Set up. Dyno Day

A locked converter will make higher numbers.

Bret

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