View Full Version : Weatherman from Denver..


WeathermanShawn
07-19-2006, 05:50 PM
Hello everyone. O.k. I admit I have been a member for a couple of years. I just read and searched. I didn't feel like I knew enough, so I was afraid to post.

Enough of that! My name is Shawn. I just moved to the Denver, Colorado region. Great location. Yes, I am a Meteorologist (fancy name for a Weatherman). And, please don't blame me for all the hot weather. I just forecast it, I don't make it happen. Though, I am tough enough to take all the weatherman jokes you can throw at me.

Weathermen can like LS1's too! Got a 2002 Camaro Z-28 Hard-Top coupe. Well, Denver's air is about 22% thinner than sea-level, so I just added a cam and head combo to try to make up for the loss of power (see sig). I am having a few problems. I am one of those who added the Comp Cam Pro-Magnum 1.75 Rockers along with the Torquer 2 and LS6- Heads. But, I have a great installer and a great tuner (Hugger Orange), so we are confident we will get it running to it's potential.

I just wanted to introduce myself. If you need a weather forecast (not a guess), let me know. I'll post later on any suggestions to help me figure out what is causing my power loss at ~5800 rpm.

Thanks for listening to me. Great site!

AutomagicLS1
07-19-2006, 05:55 PM
Welcome to the site. Come to Kansas City and forecast some tornadoes and hot weather.

Brandon Boomhauer
07-19-2006, 05:59 PM
Welcome to the site as member finally.

If you can tell me when it will rain in 76240/76205 area, or drop out of the 100s, that would be great. My prediction is 2+ weeks.....

WeathermanShawn
07-19-2006, 06:11 PM
Good call Brandon! You probably won't see a lick of rain or a break from the heat for at leat 1-2 weeks. No flow from the Gulf of Mexico. Stay cool!

HD1911
07-19-2006, 09:33 PM
haha lol...welcome buddy

racer88
07-19-2006, 09:41 PM
Welcome!

I love weather, especially bad weather...... can't tell you how many times a day I am watching the live radar on my phone, FL T'storms kick ass.

Have fun here, great site ;)

SHINER
07-19-2006, 10:07 PM
Hello everyone. O.k. I admit I have been a member for a couple of years. I just read and searched. I didn't feel like I knew enough, so I was afraid to post.

Enough of that! My name is Shawn. I just moved to the Denver, Colorado region. Great location. Yes, I am a Meteorologist (fancy name for a Weatherman). And, please don't blame me for all the hot weather. I just forecast it, I don't make it happen. Though, I am tough enough to take all the weatherman jokes you can throw at me.

Weathermen can like LS1's too! Got a 2002 Camaro Z-28 Hard-Top coupe. Well, Denver's air is about 22% thinner than sea-level, so I just added a cam and head combo to try to make up for the loss of power (see sig). I am having a few problems. I am one of those who added the Comp Cam Pro-Magnum 1.75 Rockers along with the Torquer 2 and LS6- Heads. But, I have a great installer and a great tuner (Hugger Orange), so we are confident we will get it running to it's potential.

I just wanted to introduce myself. If you need a weather forecast (not a guess), let me know. I'll post later on any suggestions to help me figure out what is causing my power loss at ~5800 rpm.

Thanks for listening to me. Great site!

Ur power loss at 5800 RPM is probably due to either simple things like plugs, wires, o2 sensors, etc. Why did u get those rockers?? That is what may cause ur power loss due to valve float..Search it. Oh and one more thing please tell me when its not gonna be so god damn hot in Houston, TX?!!!!

WeathermanShawn
07-19-2006, 10:33 PM
Yea, sorry about all that hot weather. Texas is locked in to at least another 1-2 weeks...
Good point on the Rockers. We are going to try another pushrod length first..Stock rockers may end up being the solution. Thanks, and I appreciate all the nice greetings from everyone.

Brandon Boomhauer
07-19-2006, 10:43 PM
try switching back to the stock rockers with correct length pushrods and see if the float goes away.

alot of aftermarket rockers have alot of weight over the tip and alot have been shown to cause valve float.

Stockers were fine for me on my 408, though nasty performance takes stockers and makes them even better. But I guess you are looking for the added ratio too...

WeathermanShawn
07-20-2006, 12:43 AM
Thanks for the ideas. I'll let you know how it goes. Had went with the Comp 1.75 Roller Rockers for that little extra edge, and quiet down the valvetrain a bit. Will go back to stock rockers if that is the problem. I appreciate all the help. Should have it worked out shortly. Thanks again for the nice welcome.

99camarosupersport
07-20-2006, 12:50 AM
Welcome hope you get your problem fixed! :)

Mr. Luos
07-28-2006, 09:37 PM
Welcome Shawn!!!!




<----Curtis

ramz-28
08-02-2006, 07:48 PM
welcome shawn show us some pics

kyle

WhiteStripes
08-02-2006, 08:10 PM
Welcome man. So do you forecast for a TV station, or privately for a corporation or something along those lines? Car sounds cool, hope you get everything figured out.

sgt0704
08-02-2006, 09:05 PM
ha, cool, a fellow forecaster.

94z28L
08-02-2006, 10:10 PM
welcome to the partym man

WeathermanShawn
08-03-2006, 01:16 AM
Thanks again everyone for the nice greeting. I did 8 years in the U.S.A.F. as a weather observer, then as a weather forecaster. Just finished up 15 years with United Airlines as an Aviation Meteorologist.
Always loved Colorado..now I've settled in Denver.

I believe the valvetrain issue I previously had ~5800rpm's is solved. Removed the Comp Cam 1.75 Roller Rockers..Went back to stock rockers, and actually went with a shorter pushrod (7.375" vs 7.4).

No dyno to verify, but there was no hesitation in the upper rpm's from my test drive. Must have solved it, as it only took me 15 minutes of driving to totally smoke my clutch.

Now getting the LS7 Clutch kit installed. Should hold me just fine. I'm happy where I'm at power-wise. Previous dyno was 391HP SAE at 5800 rpm, before power dipped. Estimating ~420HP. Everything helps at this altitude.

sgt0704
08-03-2006, 01:39 AM
ha, cool. i went to biloxi for school.

WeathermanShawn
08-03-2006, 01:56 AM
Biloxi must have been pretty cool. I did Chanute A.F.B. in IL.
See your dewpoint was up to 21C today! That must be nice with those temps. I'm sure your main challenge must be timing your aftn TS during monsoon season, huh?
O.K., we better knock-off the weather talk. Nice to meet a fellow weatherman!

goshawk23
08-03-2006, 03:20 AM
good ole keesler afb. thank god i wasn't in the air farce. sorry navy person. i'll leave now. welcome aboard.

ChevyWeatherman
08-03-2006, 10:42 AM
Wow just saw this thread. Another meteorologist here. I see that you worked for UAL, so you must have been in Chicago. I am from the suburbs. I work for a private company that does dispersion modeling and met tower maintenance and data collection/QC for nuclear and coal fired power plants. Good thing I don't forecast because I am not too good at it. :judge:

Welcome!

WeathermanShawn
08-03-2006, 11:15 AM
More Weatherguys/gals on here than I thought. Yes, left Chicago suburbs (Palatine) in May 2006. Got tired of working for a company that hadn't made a profit in 6 years.

Nice job being a Weather Forecaster. Get paid the same whether you are right or wrong. I do really enjoy it however. Must have thick skin though. Not being "right" all the time is not always a lot of fun.

Nice stance on your 2002 Z-28. Like those DMS Springs? Was always curious about the SLP 20TL exhaust. You don't see or hear many people running it. Heard it sounds good. See you have 4.10 gears. I'm debating going to 4.10's from the stock 3.42 M6.

Enjoy you met work, and your car. Thanks for the introduction and greeting.

ChevyWeatherman
08-03-2006, 12:03 PM
Yes, I love the DMS springs. They make the car sit just right. Do yourself a favor and get some 4.10 gears. Seeing that you have heads/cam...it will be like night and day for you. I have a similar cam with stock heads, and the 4.10s really wake the car up, it is like adding the power of another cam!!

The 2OTL exhaust is my favorite among all the mufflers available for the LS1 cars. It is not raspy at all (even with offroad pipes and long tubes) and it just plain sounds mean...espcially with LTs and no cats. I imagine that GMMG sounds nice too with cats, they mask some of the rasp.

97z2801ss
08-03-2006, 12:19 PM
nice welcome!!

WeathermanShawn
08-03-2006, 04:15 PM
Good suggestion on the 4.10's. I'll put that down as my next project along with replacing the stock 10 bolt. Should add a new dimension to the car..Probably help in pulling up some of these mountain roads too.

Nice site (LS1 Tech). Since posting and using search.. have eliminated upper-rpm valvetrain problems by using a shorter pushrod (7.375") and putting stock rockers back on (had Comp Cams 1.75 Roller Rockers on before).

Now installing LS7 clutch. Always interesting to get various opinions & ideas from other people. There has been some very solid advice along the way.

I'll try to link up some pics..hope to get some mountains/snow in background.

Thanks again everyone..

Joel_SS
08-03-2006, 04:39 PM
Welcome! Can you forecast about 20 inches of rain for the Dallas Ft Worth area? :D

Seriuosly, what is blocking all the moisture from moving into our area?

WeathermanShawn
08-03-2006, 05:19 PM
Joel SS..

Sorry, no rain for DFW for at least 4 days. Even though the low-level moisture is there (very humid)..Its all about the upper atmosphere. You have a very strong High pressure above the surface (~5000-40,000 feet). The air is just sinking. That sinking causes compression..which causes further drying aloft.
While more compression may be good for LS1 engines, for rain its bad..

You won't get rain til that upper-high moves off..(early next week).

..Hope that helps..

Joel_SS
08-03-2006, 06:36 PM
Joel SS..

Sorry, no rain for DFW for at least 4 days. Even though the low-level moisture is there (very humid)..Its all about the upper atmosphere. You have a very strong High pressure above the surface (~5000-40,000 feet). The air is just sinking. That sinking causes compression..which causes further drying aloft.
While more compression may be good for LS1 engines, for rain its bad..

You won't get rain til that upper-high moves off..(early next week).

..Hope that helps..

Seems like there has been an upper level high sitting over us all summer.. :judge:

HUGGER ORANGE SS
08-03-2006, 11:33 PM
Mr Shawn The Weather Man... I hope your well..

All issues Aside I hope your happy with the Car.. Lets get that puppy back on the Dyno!!

SHINER
08-03-2006, 11:43 PM
Joel SS..

Sorry, no rain for DFW for at least 4 days. Even though the low-level moisture is there (very humid)..Its all about the upper atmosphere. You have a very strong High pressure above the surface (~5000-40,000 feet). The air is just sinking. That sinking causes compression..which causes further drying aloft.
While more compression may be good for LS1 engines, for rain its bad..

You won't get rain til that upper-high moves off..(early next week).

..Hope that helps..

anyone ever tell you that your really smart?

irnbru83
08-04-2006, 12:01 AM
Weathermen would be more impressive if they caused weather, rather than predicted it!

WeathermanShawn
08-04-2006, 12:04 AM
Yes, we will. For all of you who may know Hugger Orange SS..

He spent many hours, laptop in hand..tuning my car, both on the dyno & in real-life driving on some back roads in E. Colorado.

He posted up "Dip in Power any ideas" thread a few weeks ago in order to help me out. Thanks Clint.

..Shinerbock07..Thanks for the compliment. I only wish I was as knowledgeable about mechanical issues as the many people who post on this board are.

Hopefully, I will keep learning...Thank you though..

Vettetech81
08-04-2006, 12:57 AM
It's just wind.. who knows what it's going to do... LoL... ever see Weatherman the movie?
-=Rick

lookin4aTA
08-04-2006, 12:46 PM
Thanks again everyone for the nice greeting. I did 8 years in the U.S.A.F. as a weather observer, then as a weather forecaster. Just finished up 15 years with United Airlines as an Aviation Meteorologist.
Always loved Colorado..now I've settled in Denver.

I believe the valvetrain issue I previously had ~5800rpm's is solved. Removed the Comp Cam 1.75 Roller Rockers..Went back to stock rockers, and actually went with a shorter pushrod (7.375" vs 7.4).

No dyno to verify, but there was no hesitation in the upper rpm's from my test drive. Must have solved it, as it only took me 15 minutes of driving to totally smoke my clutch.

Now getting the LS7 Clutch kit installed. Should hold me just fine. I'm happy where I'm at power-wise. Previous dyno was 391HP SAE at 5800 rpm, before power dipped. Estimating ~420HP. Everything helps at this altitude.

I'm about to enter the Navy as an AG, hopefully anyways. it's all i've ever wanted to do.