Just installed my Intense PCM - 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 12-22-2004, 12:04 PM   #11
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I have the F79.


-justin
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Old 12-22-2004, 12:10 PM   #12
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What ratio is that? In my FSM, they have like 9xxx as tranny identification.. i can't find that.. or is it on the trans?

/off topic


-justin
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Old 12-22-2004, 10:11 PM   #13
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One of the big benefits of this PCM is the programming change that allows the transmisson to drop from 3rd to 1st gear. The factory programming will not allow this. It normally will only allow dropping down to 2nd gear, so it seems to pull much better being now able to drop down into 1st gear at 30-40 mph.

It is interesting that yours like most with the Intense unit will shift at 6000 rpm.
Mine will shift at 5900. With the DHP, it would shift at 6000. Oh well, a little easier on the trani.
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Old 12-22-2004, 10:21 PM   #14
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Quote:
Originally Posted by BonneMeMN
OSG, these cars do feel very fast, but just wait till you get some fun cars under your belt like a v8 pony car, etc.
Bah....
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Old 12-23-2004, 03:28 AM   #15
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My car shifts @ ~41-43.

SC guys can't run 87, but they'll get getter mileage (if not racing) to more then make up for it.
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Old 12-23-2004, 07:35 PM   #16
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Can I get a PCM reprogram?
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Old 12-23-2004, 07:40 PM   #17
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Yeah, sorry I didn't clarify Justin. The car always pulled the best from a roll-on... it just pulls even better now! As far as a tranny problem, I have yet to find out. I'm probably just paranoid, but oh well. And yes Smellbird, I can't wait for warmer weather. Is it bad to drive hard when the air temperature is in the 10s or 20s?
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Old 12-23-2004, 08:15 PM   #18
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My normal driving habits net me 16 mpg.
If I feather it, I can get 34 mpg in town !
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Old 12-23-2004, 08:22 PM   #19
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Big news: I highly doubt you have a tranny problem. Drive my car on a bad day, and it will make your'* seem like the drivetrain makes extra power.

Yes, driving your car is 10* weather will kill your car in about 6 months . Driving your car in that weather is not bad, but going past 3,000rpm before the engine gets up to temp, IS bad. Just think there is an egg under your foot when the car is warming up. Then you will be okay. I don't even think about going past 2k before I see my temp gauge move. But that'* just me. Others may disagree.


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Old 12-24-2004, 03:39 AM   #20
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I still think I want to get the car on a good scantool someday, just so I know my actual tranny slip. But in reference to my other comment, what do you guys think about my dogbone theory? I've asked this question before and never gotten a good answer, so this time I'm pushing it on everybody . Could a worn-out dogbone cause shifts that feel sluggish due to higher amounts of engine/tranny swing?
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