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Pontiac GTO 2004-2006 The Modern Goat

Shift Points!!

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Old Jul 1, 2011 | 07:16 PM
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Thumbs up Shift Points!!
just wondering where everyone shifts at? What rpm is best? wondering if I should raise my rev limit?? Do you trap better or lower your et??
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Old Jul 1, 2011 | 07:26 PM
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Stock camshaft here. 6100rpm. I read the LS1 springs are quite weak and it is not safe to increase the limiter even with the stock camshaft as the valves will float.

Now, I also read on the Aussie site that folks there would add LS6 springs to pull an additional several hundred of usable rpm from the engine. Just tossing that last part out there in case.
Last edited by Felix C; Jul 1, 2011 at 08:36 PM.
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Old Jul 1, 2011 | 07:50 PM
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Hmmm ok yeah floating springs is a no no..
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Old Jul 2, 2011 | 10:56 PM
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Originally Posted by PBMGTO
Hmmm ok yeah floating springs is a no no..
Spings float?? Who woulda thunk it?
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Old Jul 3, 2011 | 09:39 AM
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so nobody with any more info as to where to set my shift point for best results??
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Old Jul 3, 2011 | 10:14 AM
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With the stock cam and springs it will always be at about 6100rpm as fuel shutoff is 6170-6200rpm depending on how well calibrated the tach is.
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Old Jul 3, 2011 | 11:04 AM
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cool thanks
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Old Jul 5, 2011 | 09:11 AM
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I have a stoke cam and I have it tuned and the limeter is set at 6800 and never had a problem...
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Old Jul 5, 2011 | 10:33 AM
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U got the rev limiter set at 68 but what do u shift at
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Old Jul 6, 2011 | 10:49 AM
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Right now my fuel cut is set at 7,500 and shift at 7,300.
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Old Jul 14, 2011 | 11:47 AM
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It depends where your car stops making power.

Ideally, you want to shift around 800 RPM AFTER, peak power. Any sooner, and you're wasting useable power, and later and you're staying in a gear not making power.
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Old Aug 10, 2011 | 06:58 PM
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My 04 a4 is currently set at 6000 on all shifts
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Old Aug 10, 2011 | 09:58 PM
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Originally Posted by gconnoyer
It depends where your car stops making power.

Ideally, you want to shift around 800 RPM AFTER, peak power. Any sooner, and you're wasting useable power, and later and you're staying in a gear not making power.
What he said. I shift at about 6,500-6,600 RPM which drops me into the 4,000s where I'm right below peak torque.
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Old Aug 10, 2011 | 11:06 PM
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On the stock internals, what rpm can you safely shift on the ls1?
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Old Aug 10, 2011 | 11:49 PM
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Originally Posted by svede1212
What he said. I shift at about 6,500-6,600 RPM which drops me into the 4,000s where I'm right below peak torque.
I'm about the same here too on a trex cam and bolt ons. I used to short shift around 5500, sometimes up to 6k, till i got dyno tuned and finally saw where my power was.

Sorry, didn't realize this was a goat thread
Last edited by Nemesis350; Aug 11, 2011 at 12:04 AM.
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Old Aug 11, 2011 | 05:26 AM
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Originally Posted by oz_monaro
On the stock internals, what rpm can you safely shift on the ls1?
Stock I wouldn't be shifting over 6,100......your power is dropping off and risking valve float beyond that
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Old Aug 11, 2011 | 01:22 PM
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Thanks, that's what I thought^^
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Old Aug 15, 2011 | 07:13 AM
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Originally Posted by svede1212
What he said. I shift at about 6,500-6,600 RPM which drops me into the 4,000s where I'm right below peak torque.
Ah, the beauty of an automatic.
My shift points are set at 6,500rpm and it only drops back to 5,100rpm.
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Old Aug 17, 2011 | 04:09 PM
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........I shift at 6800 now

Wish I could rev it higher
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