Quote:
Originally Posted by CrystalRedTintcoat
If you're looking for track improvement we know HP isn't the end all be all. Just look at what Chevy did with the Z/28 by improving handling vs HP compared to other cars in its class. And look at momentum cars. They can put down good times without the HP.
Now, for me , I love the 1LE gears but feel some pull is missing especially in 3rd. I want a cam that will let me keep up with higher HP cars between the turns.
I know people say here that custom cams are the way to go but I'm still hell bent at considering the Chevy Performance Dynamic Duo (see performance parts on Chevy.com) and, frankly though everyone pans it saying, "it's crap try Connor Custom Cams", but nobody ever shares objective evidence as to what's wrong about it or why Tom, Dick or Harry's cams are Better.
And, frankly, my last car was custom tuned by a custom tuning shop 30 miles away and let me tell you how much a pain in the butt it was when something went wrong. I could ONLY go to ONE shop to get my car worked on. And when it needed to be towed I had to pay extra to have it towed to the custom shop. Worse the custom shop often had a two week wait before you could get an appointment, even for repairs.
I'm leaning towards having Abel Chevrolet in NorCal put in the Dynamic Duo which have been tested by Chevy performance engineering.
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I've said a number of times the heads have poor port velocity due to their overly large sizes for what they're designed for. Much of the power in heads come from milling them to bump the compression which you won't be doing. The cam specs are anemic, even for a road race car. And a tighter LSA would improve midrange by shifting the power down. There's nothing wrong with the parts per se, but they're not optimal for anything and are just factory parts. Its not like it was designed for the LS3, it was made for the LS7 which has drastically different head flow, valve sizes, and piston sizes. It also has a different rocker arm ratio so you're not getting nearly the flow you would in the application it was meant for. If no one is telling you straight why there aren't better options then you're talking to the wrong people.
I don't know why only 1 shop could touch a modified car aside from changing tuning to avoid paying another VIN credit. Otherwise any shop worth their salt can work on any modified car without issue. But if dealer service is your priority then have at it.