IS THERE A NEED? - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-10-2007, 02:22 PM   #11
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I believe we have plenty of low end to spare.
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Old 02-10-2007, 02:52 PM   #12
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Low end is what gets our heavy arses moving, and is what you use daily more than anything.

I wouldn't sacrifice low end unless it was so extreme it made the car impossible to launch or drive daily.
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Old 02-10-2007, 02:56 PM   #13
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Default Re: IS THERE A NEED?

Quote:
Originally Posted by 1993 SLE

even on a well modded SSEi....Billboost lost a lot of low end with his 3" DP, that fact is well known
I gained power with the 3" DP, noticably. No noticable loss in low end power.
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Old 02-10-2007, 03:05 PM   #14
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Your car is lighter and has different gearing. Your mods may have been different than others as well when you added it.
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Old 02-10-2007, 03:14 PM   #15
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Don't all Series II L67'* have the same gearing? And I don't think weight has anything to do with gains and losses in torque.

I put that DP on when all I had otherwise was a CAI.
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Old 02-10-2007, 03:23 PM   #16
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You won't notice a loss of low end torque as much as a heavier car.

Your gearing should be different than a Bonneville IIRC. Check your RPO codes.
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Old 02-10-2007, 03:29 PM   #17
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It'* 2.93.

And given that the original poster already has a 3.4 pulley, I don't think there will be any noticable loss in low end.
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Old 02-10-2007, 03:47 PM   #18
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Explain billboost'* loss of low-end with the same mods and a 3" dp?
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Old 02-10-2007, 03:48 PM   #19
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Can't explain it. Every car is different. I'm just sharing my own experience about this.
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Old 02-10-2007, 03:51 PM   #20
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I checked on the Gears also, and you're right on the 2.93'* for stock GTP'*. My bad on that one.

I'll write yours off to the lighter car making it less noticable.

Most people don't mess with a 3" dp until they have rockers or a cam, and headers as well. I don't think you're going to gain anything noticable with a 3" dp on PEM'*.
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