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So I picked up a 2007 Silverado VMAX CCSB in November with a bad dod lifter. Having already done the full delete and cam swap on my wife's tahoe I knew what I was in for. I ordered up TSP's stage 3 high lift truck cam on a 114 lsa (216/220 .600/.600), TSP's full dod/afm delete kit with ls9 gaskets, arp bolts, gm performance lifters, etc. While I was at it I ordered Speed Engineering's 1 7/8 LT's and 3" True dual exhaust with tail pipes (I posted in their thread about tge excellent fit and quality). To finish things off I ordered an airaid Jr intake tube and the trusty 40k trans cooler. I was able to finish the swap in 3 days and have been running the truck unturned (besides turning off the dod stuff) up until today. I also forgot to mention I removed the speed engineering mufflers and added 4 magnaflow mufflers to quiet the truck down. The truck ran surprisingly well considering it wasn't tuned but I knew it had more in it. That brings me to today when I brought my truck to EFX Tuning in NJ for a full dyno tune. With the untuned truck on their mustang dyno my truck put down 320 rwhp, 344 rwtq which is pretty respectable for a cam only daily truck in my eyes. After working their magic my truck laid down 392 rwhp, 374 rwtq. I'll be honest, I was only hoping for 350 rwhp as I was planning on adding an lsa supercharger. Not only did my truck pickup 70 rwhp and 30 rwtq, I gained 2mpg on the way home (hand calculated). I just want to say thanks again to the guys at EFX TUNING for their awesome work. Also I want to thank TSP and Speed Engineering for getting me the exact parts I needed and there awesome customer service.
Those are great numbers. I have been looking for a L76 6.0 to swap into my truck, and that was the exact cam I was going to throw into it.
Big difference in power after getting it tuned.
Goes to show you how much more power can be made vs a 5.3. I have a 212/218 .553/.553 113+2 Cam, Ported Heads, Longtubes, Ported NNBS Intake, Polished 90mm LS7 Throttle body, and so on, and make 364-Hp/348-Tq. With the same mods on a 6.0, it should be 420+ Hp.
well i agree those are sweet gains to the tire but were also helped with the headers/exhaust and intake.
For sure Choda, the exhaust definitely removed any downstream bottlenecks. These newer ls3 heads plus the increase in cubes help smaller cams like mine put down good numbers. My next update will be when the lsa supercharger gets put on. The goal for this truck is 500 rwtq so I hopefully won't have to pulley it too much. I'm just finishing the 9" lift and waiting on my 38's to get here.
Those are great numbers. I have been looking for a L76 6.0 to swap into my truck, and that was the exact cam I was going to throw into it.
Big difference in power after getting it tuned.
Goes to show you how much more power can be made vs a 5.3. I have a 212/218 .553/.553 113+2 Cam, Ported Heads, Longtubes, Ported NNBS Intake, Polished 90mm LS7 Throttle body, and so on, and make 364-Hp/348-Tq. With the same mods on a 6.0, it should be 420+ Hp.
As happy as I am with this cam, they came out with a stage 4 truck cam a month after I bought mine. If you do swap to a 6.0 try the stage 4, I bet you'll see even better results.
03-24-2018, 05:09 PM
2007 Silverado VMAX dod delete dyno results
