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[Z06] 2006 Z06 Dyno with LG Pro Long Tube Headers

 
Old 09-28-2005, 11:37 PM
  #41  
LG Motorsports
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Originally Posted by vetterlatethannever
Huh?? I know the rating is with stock components. My concern is with the initial STOCK dyno with the heat soked number. We all are already assuming this is a low number due to the heatsoak (unless we dyno heatsoaked motors now, which if that is the case I don't know why Lou would have put a cold motors # up and then want to dyno the new stock Z they get with a cold motor)

Sooooo. We all speculate that the Zs RWHP dyno will increase with a cold motor, which means either the drivetrain loss will drop (below 12.5%, unlikely with beefier parts, tires, etc.) or the (this) car is slightly underrated.

With tuning the IAT heat has much less of an affect on the power.

Our race car makes the best power on the 3rd pull even with the extra heat.

These cars will also be less affected by heat when they are traveling down the road.

I just didn't want to put the BIG number up without some explaination because I know that there will not be a 40 hp increase with just headers. I could be wrong though

We shall see when these cars have some time to get delivered around the country.

Also, I will have another car here this week or Monday to get a better base line number from.

LG

PS, I don't think 12.5 is the correct number. And from our dyno tests over the years the percentage changes through out the pull. We have compared engine graphs to chassis graphs from the same engine and have seen (on a race car) any where from 11% to 14%. And that is a race car with straight cut and modified gears, lightened parts, 5" diameter clutches etc.

We have no idea how much the big stroker crank is affecting the rwhp numbers, nor do we know what the big 19inch tires and wheels are draging from the rear wheel numbers.

So, in effect, We just don't know yet.

But stay tuned and we all will find our over the next year or so.

LG
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Last edited by LG Motorsports; 09-28-2005 at 11:42 PM.
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Old 09-28-2005, 11:44 PM
  #42  
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Originally Posted by LG Motorsports
With tuning the IAT heat has much less of an affect on the power.

Our race car makes the best power on the 3rd pull even with the extra heat.
LG
Thats good to know, bet you can't wait for the tuning software.
Originally Posted by LG Motorsports
These cars will also be less affected by heat when they are traveling down the road. LG
Definately
Originally Posted by LG Motorsports
I just didn't want to put the BIG number up without some explaination because I know that there will not be a 40 hp increase with just headers. I could be wrong though
LG
I know how some are quick to raise that "flag" Maybe with some tuning that 40 is not out of the question Good luck with it all and if I can make it up there I will most definately stop by and thanks for taking the time and explaining everything!!! Top notch, Lou!
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Old 09-28-2005, 11:44 PM
  #43  
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Great info, Lou. Keep it coming.
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Old 09-28-2005, 11:46 PM
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Originally Posted by LG Motorsports
But stay tuned and we all will find out over the next year or so.

LG
Will do, thanks again Goodnight all!
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Old 09-29-2005, 12:16 AM
  #45  
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Very impressive LG!!

Sign me up for:

1. LG Longtubes with cats and all sensor hookups;

2. Intake that will not unduly suck water or dirt;

3. Mufflers with no resonance (like Corsa Touring) (or stock if they will work) and not too loud;

4. PCM tuning on the dyno on my car in California!

5. Special CF Group Buy Rate!

My car should be here in 10-14 days!

I am "IN"!!!

{I already sent you and email with my contact information}
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Old 09-29-2005, 12:56 AM
  #46  
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40hp and you wasn't happy with the results Way to go LG... Can't wait to see the cam results
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Old 09-29-2005, 01:04 AM
  #47  
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I'm with Mako7!! Car should be here in 3-4 weeks and that would be perfect..!!

-D
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Old 09-29-2005, 01:42 AM
  #48  
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Just for fun, I pulled the air filter out and did a quick pull. Engine was warm But the car has been sitting for over 30 minutes.

Halltech, where is that high flow CAI when you need one.

What a nice car.

LG


Last edited by LG Motorsports; 09-29-2005 at 01:44 AM.
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Old 09-29-2005, 01:49 AM
  #49  
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Originally Posted by EuG
I assume that's Random tech high-flow cats, not the stock ones, since they'd have to be eliminated by headers, correct?

They are high flow cats but we get them directly from the manufacturer rather than Random.

they seem to work well. We will pull the cats off and make a couple of pulls tomorrow.

Thanks
Lou g
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Old 09-29-2005, 01:51 AM
  #50  
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Excellent . Now you guys can shut up and spend time with your wives .
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Old 09-29-2005, 07:41 AM
  #51  
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Damn,
Amazing how you can have almost 500rwhp with just a set of headers,
on a totally stock car!
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Old 09-29-2005, 08:22 AM
  #52  
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lou.....

cough cough cough....nitrous kit....

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Old 09-29-2005, 08:52 AM
  #53  
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Originally Posted by LG Motorsports
You can see that the computer pulls about 16 rwhp out and 13rwtq
by doing 4 pulls back to back within 6 minutes total from starting the first pull.
Tuning will solve this easily.
Pretty darn good gains there, but I am confused by this statement. Isn't it more likely that heat soak is just setting in and the power loss is real. Many other engines (the LT5 comes to mind) are notorious for "losing power" on the dyno as the plenum heats up with continuous pulls.
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Old 09-29-2005, 09:01 AM
  #54  
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Excellent numbers!! I think 1 7/8" headers or headers with stepped 1 3/4" to 1 7/8" primaries should be tried on this motor, though.

Lou, do you know for a fact that pre-production cars have "modified" tuning? I don't think this is a fair comment at this time, as current GM test fleet vehicles have test numbers that line up very nicely with real world cars. In fact, the current C6 has many owners besting the magazine tests.

Todd
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Old 09-29-2005, 09:05 AM
  #55  
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Originally Posted by LG Motorsports
Just for fun, I pulled the air filter out and did a quick pull. Engine was warm But the car has been sitting for over 30 minutes.

Halltech, where is that high flow CAI when you need one.

What a nice car.

LG

WOW! You and Jim need to get together and present a package. I will be in when I get one in December. Can you make a package that does not void the GM warrenty?
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Old 09-29-2005, 09:27 AM
  #56  
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Default RPM peak HP range

Originally Posted by LG Motorsports
They are high flow cats but we get them directly from the manufacturer rather than Random.

they seem to work well. We will pull the cats off and make a couple of pulls tomorrow.

Thanks
Lou g
In a drag race, when should I shift? All the mags have said 7000 rpm's but if I read your graph correctly it should be less for max performance.
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Old 09-29-2005, 09:30 AM
  #57  
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LOU's Crew Rocks !

This is a 500+ RWHP car when the tune gets honed. Give you guys 3-4 months ... and that computer will sing a BADDAZZ song.
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Old 09-29-2005, 09:30 AM
  #58  
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Drag racing take it right to the red line - 7K. Even though you've gone a split second past max power, your bringing the next gear in close to max and that's the quickest way to get down the track. An ideal run would hit red line in every gear and red line high gear right in the traps.
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Old 09-29-2005, 09:35 AM
  #59  
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wow...we are so lucky to have tuners such as LG to [email protected] these cars for us. This is going to be one heck of a car....LG is in my opion @the top of the clazz
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Old 09-29-2005, 10:06 AM
  #60  
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This is INSANE!!

Get a LG Motorsports "Kit", maybe a mild cam, and perhaps a nitrous set-up, and have a mild daily-driving low 10 sec, road course incinerating, 25mpg MONSTER!!!
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