You guys are not going to belive this, as I did not either. My car is a 01 Z06, and the base line mods are in sig (vararam, coupler, air bridge, stingers). It was summer in nc, hot and yes I was disappointed. The PCM was just reflashed with the CBL recall too.The gains showed over the baseline are just insane, and shows how weak my car was in the heat, and the flashed PCM.

The changes are LGM Long Tubes (no cats), 02 Sims, and a tune by VHP Diagnostic Tuner (stock cam high preformance tune, 190 fans, cags, no timing added).

The air today was insane, cold and very low presure. Well here it is:
[IMG][/IMG]

These are uncorrected and I know the flagg is going to be raised, as I am in shock too. I would like to thank LGM for their great support (Matt, thanks again, you rock!!!) and a kick *** set of headers. The car is insane and the gain is way more than I hoped for. Thanks Godspeed Auto Salon for the dyno time http://www.godspeedautosalon.com/index.html
and Total Auto Preformance in Augusta for the install.

Dave

 

Your car is probably not running 401 RWHP as indicated in your sig. Based on your description of the weather the SAE numbers will drop. Have GodSpeed send you the Dynojet RunViewer file and see for yourself. He may have printed an uncorrected chart in order to make your run look better (thus make you happier).

 

Agreed, have them send you the run file and goto dynojet.com and DL/install the dynojet run viewer. Put the dropdown on SAE. Your numbers will drop, sorry to bring the bad news but the delta is nice, congrats.

Brian

 

Brian,
Thanks for the response. I went back today , and did not make any runs just got it SAE.. well it went up. The dyno must be FUBAR. BUT, if it is that far off (high) my car was realy crappy this sumer here in NC I emailed CAM to see if I could get a tune and some dyno time. I will post up. Thanks again
Dave
PS It does sound and feal way better and LGM have been top notch, and very proactive. Any one looking for headers can not go wrong with these. The track was closed today too even though it is perfect outside

 

Sorry, but I'd be skeptical of a 70hp gain from headers & a tune also...I'd be curious of the real gain though. Congrats on the mods though! Ron

 

Sorry Chief, but I'd be skeptical of a 70hp gain from headers & a tune as well. I'm curious to the real hp gains though. Good luck w/ the headers.Ron

 

Those gains are equal to a good heads/cam package gains. 400 hp with just a few bolt ons! I think I need to sell the Coated Dynatech headers that I haven't even received yet!

FS: Brand new, still at the coater Dynatech Supermaxx header system open for bids!

 

Were they any other headers I would agree with you. But these are LGM headers. The most powerful C5 headers on the planet.

A 70 rear wheel horsepower and 75 RQTQ gain is certainly within reason with these. Haven't you read the threads?

 

Dave called the shop with the results, and we told him to skip the uncorrected numbers and put up the SAE corrected numbers to avoid any forum problems.

I am sure that Dave posted this with a smile and a little laughter.

When he gets the SAE numbers up there should be about a 25 hp gain on a Z06 corrected. I am assuming that the baseline was done when the weather was warm and the header dyno was done when it was cold. thus the extreme difference in Uncorrected numbers.

AN 01 Z06 should see about 385 to 389rwhp "after", and about 355 to 360 rwhp for the "before" numbers.

But if you put this in perspective, this is exactly what happens when the track temprature goes down. the dragracers are racing with "Uncorrected" hp which is sometimes very big. That is why I trust a dyno more than a track time.

thanks guys,
and Dave, Congratulations.

LG

 

great numbers!

 

I'm sure those number are real... that's what cold weather does for our cars. With only a Vortex I dyno'd at 364 rwhp uncorrected last February. After correction the numbers dropped to 342

 

I am sorry but I could not resist. Like I posted earlier, the SAE is higher so I seriously doubt the numbers (but I did have some great dreams last night!!!) Nothing back from CAM yet for another dyno run and a good LS1 tune. Damn I wish the track was open in Fayetteville today! I hope I am not stirring the pot, but, these things are insane It was freezing yesterday, and the air was very dense. Hopefully next weekend I will have some pulls on another dyno, but, but, it will not have a baseline to compare too. The base line was very hot, and a crappy, new tune from GM, and this last run is with great air, and a much better tune. Again, I am not trying to start anything, just sharing my extreme pleasure.
Dave
PS Thanks again Lou and Matt, next time, I will make the drive out to TX.

 

I am on for Saturday Am, @ CAM and a new tune by Jeff. I will post up. Thanks for the replies!
Dave

 

I drove 500 miles today, from Augusta, to Durham to have Jeff Creech tune my car, and get some solid numbers ran. CAM is a well known and trusted shop, so I wanted to clear the air. Jeff took jis time, made many pulls and many changes and I left with a safe tune, a good gain, and a much better SOP car. I re-flashed the GM tune this am and drove it all day to re-learn, so I would have a real base line. We ened up with a safe AF, and a much stronger pulling, 375 RWHP SAE and 373 RWT, while it maxed at 379, 380 SAE. Here it is:

My intention was to share my experiance with my Vette brothers, and I hope this post does that. The wheather is looking dry and bright tomorrow here in Fayetteville, so I will make some runs and post them up. Thanks again for the support and yes, I am very happy
Dave
PS It did pull 390 un-corrected today

 

Ran @ FMSP. Only got in 3 runs as the big cars kept oiling the track. Car ran great and I was loving the added torq, and the top end. Here is the slip:
[IMG][/IMG]
My car went from 12.33 @ 114 with a 1.90 60 to
11.89 @ 118.70 with a 1.83 60. Only changes are LGM LTs, Tune, and TR 55 plugs. I am happy. I should have got headers last summer when everyone was telling me. Thanks Matt and Lou from LGM, Jeff from Cam, Z06Josh, Cajun, MSG Huff and for making a car that my non-driving *** can get into the 11s with a few bolt ons.
Dave

 

Good job,Dave! Thanks for posting all this info! Very interesting and informative,and congrats on 11's! What tires are you running?

 

Dave,
370's are still good #'s.
Let me know next time you come up, maybe we can get together for lunch.
Will

 

What was the cost for the headers and tune?

My Z16 (Bone Stock 10K miles) dynoed at 348 yesterday.

 

Wow thanks for the posts

Don,
I was running 295 35 BFG DR, about 50 passes on them, and not a good brun out yet as I can not do a brake stand. Had the PSI down to 17 and they hooked well. I lauched easy @ 3200, and it worked ok. There is another .1 in the 60 at least, but I got in the 11 before I deploy again so I am

Will,
Sounds good brother. I am bouncing back and forth from GA (school) to NC, and next weekend is VIR. I am amped up and I just hope they take it easy on me as it is my 1st time! 2 weekends maybe? Let me know. I'd like to see you again beofre I go, and your 01 SW Z, too cool!

ZO6stringvette,
The LTs where 1499 I think, and I got in on the GP from LGM. I went with 02 SIMS too. I do not need them now as they are removed in the tune, but they look cool with the LEDs. I am too lasy to take them off, but if someone needed one or 2 at the track or a trip, poof. The tune was 400 @ CAM and Jeff was as good or better than I has heard. He took off all the GM stuff, CAGS, O2, air pump, changed FANS, ect and he got it right from idle up to redline. The car had a bad resonance from the stingers before, and he tuned that out, well most of it, down lo. My MPG went up to 29, and my car never did that well before mods! The tune was awesome and it made the response even better. I am very happy, and it was great having the changes explained, each time, esp the timing. My car liked a few degrees less than most, and he showed me that on the dyno. Less timing, and more power and less lean is good yes? The best part is the sound, and I will try and get a sound bite tomorrow maybe, as it rumbles at idle now, like the clasic cars did when I was a kid, and under a load... I heard cars at the Z06 FES last summer, and I was hooked! Hope this helps. My car dynoed with a vararam @ 340 in the heat :o but 358 sounds awesome bone stock!
Thanks fellas!
Dave
PS Did I miss the game tonight at the track and posting here??? Time well spent my brothers!

 

Great time! What were you running against, a Pepsi delivery truck?