C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

2003 tourqe and HP

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Old Jul 26, 2011 | 09:20 PM
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Default 2003 tourqe and HP

WHAT IS THE FACTORY hp AND TOURQE ON THE 2003 VETT
Old Jul 26, 2011 | 09:42 PM
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dude, you are seriously in the wrong section
Old Jul 27, 2011 | 12:02 AM
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Spellcheck wouldn't hurt when you post in the correct section.
Old Jul 27, 2011 | 12:21 AM
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Old Jul 27, 2011 | 12:35 AM
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Nick.....

2003 LS1 350 HP @ 5600 RPM & 375 Torque @ 4400

OR

2003 LS6 405 HP @ 6000 RPM & 400 Torque @ 4800

My old 85 with the ZZ4 was 350 HP and over 400 Torque.....

How did the chip work?

John
Old Jul 27, 2011 | 11:48 PM
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Originally Posted by John A. Marker
Nick.....

2003 LS1 350 HP @ 5600 RPM & 375 Torque @ 4400

OR

2003 LS6 405 HP @ 6000 RPM & 400 Torque @ 4800

My old 85 with the ZZ4 was 350 HP and over 400 Torque.....

How did the chip work?

John
on tuesday night i started looking for the ECM. i think its under the heater on the passanger side. it got late and hot and i quite for the night.
i hope to have it in tomorrow night, ill let you know. Nick

Last edited by nickpe; Jul 27, 2011 at 11:55 PM.
Old Jul 28, 2011 | 03:11 AM
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It is located under the passenger side hush panel. Remove the panel and you will see TOO many wires....scary...... you almost have to be on your back to see up inside...at least that is what I do. If you look up the computer is in a vertical position held in place with two (2) 10MM bolts I believe. You can unscrew the bolts and drop the computer down. You will find a cover held in place by two small bolts. Remove one and loosen the other the turn the cover 180 and the chip is under the cover. BE SURE that you have disconnected the battery before you start messing with the computer.

Pull out the chip and replace it with mine. You can leave the computer where it is at. Reconnect the battery and start the beast.....

Let us know how it runs.....

John
Old Jul 28, 2011 | 09:31 AM
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Originally Posted by John A. Marker
Nick.....

2003 LS1 350 HP @ 5600 RPM & 375 Torque @ 4400

OR

2003 LS6 405 HP @ 6000 RPM & 400 Torque @ 4800

My old 85 with the ZZ4 was 350 HP and over 400 Torque.....

How did the chip work?

John
Keep in mind, crate engines, such as the ZZ4, were rated in gross flywheel HP/TQ rather then net, meaning no air cleaner with its plumbing and long tube open headers, no exhaust system . I've dynoed many ZZ4 conversions that had less HP/TQ at the wheel then a stock LT1. When the 300 HP LT1 was introduced for 92, GM rightly claimed that it was the most powerful small block that they ever produced for the general public.
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Old Jul 28, 2011 | 11:07 PM
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Those numbers are Dyno numbers....not from a book.

The stock LT1 has 300 HP. My friend and I took out cars to the 1/4 mile track last September. My 85 with the ZZ4 was turning 13.3's all night long in 97 degree weather. My friend got the 94 down to 14.1 through the 1/4.

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