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Old 10-09-2013, 02:47 PM   #1
CBRpilot
 
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Drives: 2012 SS
Join Date: Apr 2013
Location: The Woodlands, TX
Posts: 58
Exclamation Dyno results in for typical intake/headers/exhaust SS

So I finally got around to having my 2012 SS tuned at Late Model Racecraft. Mods are CAI intake, TSP 1 7/8" LT's, 2.5" x pipe and Borla XR-1 mufflers. He said I have a small exhaust leak on the driver side header where the collector/reducer meets the 2.5" exhaust. I'm not sure how much that would affect the tune (not much I'd guess), but it's frustrating nonetheless.

Quick side note regarding LMR's customer service: I showed up for my "scheduled" dyno on a Friday to find that their tuner accidentally forgot to book my appointment and had alreayd gone home. Jay's response was nothing short of awesome. He offered to send two of his guys to pick up my car in downtown Houston (25-30 miles from LMR's shop) and tune it and then have them drop it back off. Then he knocked some off the already Camaro5 discounted dyno tune price. Really couldn't be happier with the customer service I received!

Anyhow, baseline numbers were 327 rwhp 349 torque, ended up netting 32 rwhp and 25 torque with the tune. Ended up with 358 rwhp and 375 torque. And oh my jesus christ, new shift points/firmness, AFM delete, and obviously a leaner air/fuel curve and the car feels SOOOOOOOO much better. It's like a different car, seriously.

I haven't done much comparing for cars with similar mods, but I'm not sure if I should be happy with the end numbers or asking questions instead. What do you guys think?
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Last edited by CBRpilot; 10-09-2013 at 03:04 PM.
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Old 10-09-2013, 02:56 PM   #2
Deezee
 
Drives: 2013 SS/RS
Join Date: Jul 2013
Location: Virginia Beach, VA
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What type or dyno does LMR use? An exhaust leak can throw off AFRs in back on the dyno, but I'm sure the put it in the other side so it's fine. Won't hurt the car, but I'd get it fixed. Happy to hear the car feels great! Congrats
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Old 10-09-2013, 03:01 PM   #3
CBRpilot
 
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Drives: 2012 SS
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Location: The Woodlands, TX
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Just talked to Jay at LMR. They use a DynoJet 224. He said that I'm probably 10hp or less shy of what he typically sees for an auto with the same mods.
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Old 10-09-2013, 03:10 PM   #4
Deezee
 
Drives: 2013 SS/RS
Join Date: Jul 2013
Location: Virginia Beach, VA
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Yea I'd say your pretty close. If its hot out and muggy like here that could be it. LMR has a great rep here and in the Vette community. As long as it feels great your good to go!
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Old 10-09-2013, 03:24 PM   #5
MEDISIN

 
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Drives: 2011 CTS-V Sedan
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Location: Chapel Hill, NC
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More importantly, how does it sound!?

The gains seem modest but that could be the dyno, conditions. There are many posts with stock, then CAI, headers, tune overlay around here. I had the manual transmission for results below so keep that in mind.

1) Roto-Fab CAI
2) Kooks 6511-complete (1 7/8" LTH, catted x-pipe, mufflers)
3) Tune by R.P.M. Motorsports (Garner, NC)

__________________
2012 - Present: 2011 CTS-V Sedan, A6, Airaid, Zmax TB and Tune by R.P.M. = 535 hp/503 lb-ft.
2009 - 2012: 2010 2SS RS IBM M6, MGW Shifter, BMR Trailing Arms/Tunnel Brace, Roto-Fab CAI, VMAX Ported TB, Kooks 6511-Complete (Headers, X-Pipe, Mufflers), dyno tuned by R.P.M. = 415 hp/412 lb-ft.

"Not giving a f*^k is truly the greatest luxury, and no luxury car gives fewer f*^k's than a CTS-V." - Matt Hardigree
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Old 02-09-2014, 11:56 AM   #6
texjsleigh
 
Drives: 2010 Camaro 2SS manual
Join Date: Jan 2013
Location: Texas
Posts: 4
Late Model Racecraft (LMR) dyno tune

I just had LMR in Houston dyno tune my 2010 2SS 6 speed manual. I am extremely pleased with how the car has come alive. So much more fun to drive at lower rpms (2-3k). The car always felt held back until now. Now the car is always breaking loose.
Conditions 43.3 F, 29.9 Hg pressure, and 59% humidity.

The attached image is the "STD" graph with the final pull after dyno tuning. The car has only had the following: Cold Air Inductions intake, and Pfadt long tube headers with cats, and muffler delete. Results: 432 HP and 432 ft-lbs.
http://www.gmhightechperformance.com...el_horsepower/
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