[Z06] Optimum Shift Points For ZO6?

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Apr 7, 2005 | 12:25 AM

#41

Qksilver

Instructor

Joined: Jul 2004

Posts: 114

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Quote:

Originally Posted by Ranger

Fuel cut-off is 6600. The popping sound is generated by the fuel cycling off-on-off-on-off....as the rpm hit and then drop below 6600 and the cycle repeats again and again, Ranger

Lets hope I finally talked to the right person here. After reading over and over about fuel cutoff, fuel cutoff, etc....I talked to someone within GM that really seemed to know what he was talking about. He states that these cars only have a fuel cutoff, so Ranger you are 100% right and I was wrong. It's amazing how even GM techs don't have a clue how our rev limiters work. They work a little differently than the MPH fuel cutoffs, but still all in all its the same. So, I'm back to wondering why I run slower shifting at the 6500 mark on the 3-4. Robz, let us know what you find out.

Last edited by Qksilver; Apr 7, 2005 at 09:27 PM.

Apr 8, 2005 | 01:38 AM

#42

3 Z06ZR1

Team Owner

Joined: Mar 2005

Posts: 20,933

Likes: 905

From: salem OR

Quote:

Originally Posted by Qksilver

That would be at 6250 RPMs.

That would be 6400, on My car, cheched it tonight two pair of eyes
wait 1 fraction of a sec, you hit the limiter

Apr 8, 2005 | 12:57 PM

#43

Robert56@RNS

Collections Hold

Joined: May 2003

Posts: 3,520

Likes: 2

From: Tacoma WA

Quote:

Originally Posted by Rock'en Silver 02

That would be 6400, on My car, cheched it tonight two pair of eyes
wait 1 fraction of a sec, you hit the limiter

Which tach are you looking at, tach on dash lags behind, and hud may lag also? Anyone know for sure on the HUD?

Apr 8, 2005 | 03:57 PM

#44

3 Z06ZR1

Team Owner

Joined: Mar 2005

Posts: 20,933

Likes: 905

From: salem OR

Quote:

Originally Posted by Robert56

Which tach are you looking at, tach on dash lags behind, and hud may lag also? Anyone know for sure on the HUD?

both
hard to tell, need to auto tap for sure.
But i think It's good to use the hud shift light.
More 6250.
Comes on close to the limiter

Apr 8, 2005 | 11:17 PM

#45

Qksilver

Instructor

Joined: Jul 2004

Posts: 114

Likes: 0

Quote:

Originally Posted by Rock'en Silver 02

That would be 6400, on My car, cheched it tonight two pair of eyes
wait 1 fraction of a sec, you hit the limiter

In your owners manual it states 6250 RPMs.

Apr 8, 2005 | 11:54 PM

#46

3 Z06ZR1

Team Owner

Joined: Mar 2005

Posts: 20,933

Likes: 905

From: salem OR

Quote:

Originally Posted by Qksilver

In your owners manual it states 6250 RPMs.

Probably seeing the tac llag , since it's 6250.
or one is diffferent?

Apr 12, 2005 | 12:22 PM

#47

BluMachine

Cruising

Joined: Apr 2004

Posts: 11

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From: Tampabay Florida

You can also program the Skip Shift light to function as a shift light w/ LS1edit. I have the skip shift light set at 6500 and have the limiter moved to 7000, with the goal of shifting at 6500-6700. This way if I'm a little off, I don't hit the limiter. I have breifly hit the 7000 limit a few times while drag racing with no problems. I would not recommend extended periods (road race or autox) above 6500 on stock valve train parts.

Last edited by BluMachine; Apr 12, 2005 at 12:26 PM.

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