switchin from 3.5 to 3.4 - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 09-13-2007, 08:16 AM   #11
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Casey...if you want to test it out w/o buying..the locals could get together some time and we could put my 3.4 on your MPS if you have the INTENSE setup.
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Old 09-13-2007, 08:32 AM   #12
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maybe, problem with that is im stuck at college, without my car.
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Old 09-13-2007, 09:51 AM   #13
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Your PCM will move around the octane tables depending on frequency and degree of knock. You will not want to drop pulley sizes unless you have 0 kr and get max timing about 15-17 degrees depending on conditions. If you are getting 0kr and say 10-12 degress of timing you would not want to drop down.

Either way as mentioned before you will be using the highest octane you can get.
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