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  1. COMPRESSION, Curious How High Some Are Running That Still Use 93 Octane, Not Just E85?

    Engine/Supercharger
    About to order a new 376ci built engine (my block broke). I have been going back and forth on higher for power or keeping it lower for safety. For example either a 9.8:1 or a 10.5:1 compression setup, I'm looking at a 9.3 or 10.0 compression short block with 70cc heads but mine are 65cc so like...
  2. BOOST!!! Does yours HOLD or TAPER?

    Engine/Supercharger
    I have always wondered if others experienced the same type of thing as myself or not. I can't for the life of me remember if mine has always done this at different stages of mods or more toward the last round, but I think it used to hold. Anyway, this is directed more toward people with things...
  3. Help on choosing HX: 2.55'' + 9.1'', ID850s, Etc...

    Cooling
    I will be adding the following modifications to my 2011 CTS-V and wanted to get some recommendations on some good cooling options 1. Corsa Sport Axel-Back Exhaust = installed 2. 2.55’’ Upper w/ Solid Isolator= installed 3. 160* T-Stat = installed 4. ZL1 Lid 5. AirAid Intake w/ Green Filter -...
  4. Magnuson HeartBeat installed on CTS-V

    Engine/Supercharger
    Finally ... Although installed and a couple of (encouraging) preliminary tests completed on the dyno, there will not be any real conclusive results for several days. Unfortunately, work has to come before play. There are a few small things yet to be completed (hoses tidied up, better brackets...
  5. Inconsistent Boosting?

    Engine/Supercharger
    So I recently picked up the car and it's already giving me grief. Sometimes when I get on it it feels amazing, boosts hard and burries the stock gauge (10/2.55). But then the next time I get on it down the road I might only see 3-5 lbs, and that's it (feels solid, just not making boost). It's...
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