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Old 10-20-2012, 06:55 PM   #1
ZO6 Bryan
 
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First Baseline dyno of my ZL1 Bone Stock

Few of us dynoed our cars today to get baselines before mods. My car and one friends new Rousch Stage 2 and another friends 2012 GT500. All 3 did just as expected. Now for a pulley.
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Old 10-20-2012, 06:57 PM   #2
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mmmm look at that torque curve
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Old 10-20-2012, 06:59 PM   #3
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And the HPTuners scan for any of those interested in the data.
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File Type: zip dyno1.zip (151.8 KB, 38 views)
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Old 10-20-2012, 07:43 PM   #4
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What the rev limiter set at stock? It seems like it would make more power if you kept going...
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Old 10-20-2012, 07:46 PM   #5
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Very nice. Manual car right? I doubt I will hit the track this season, so I want dyno it.

BTW - This car is just begging for a higher rev limiter. Every dyno run I've seen the power looks to carry well past the 6200 rpm factory limiter.
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Old 10-20-2012, 08:06 PM   #6
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cool, thanks for sharing...
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Old 10-20-2012, 09:06 PM   #7
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Quote:
Originally Posted by NASTY99Z28 View Post
What the rev limiter set at stock? It seems like it would make more power if you kept going...
Stock rev limiter shuts it down at 6200. Yes I agree, it hadn't peaked yet.
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Old 10-20-2012, 09:10 PM   #8
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Quote:
Originally Posted by DrkPhx View Post
Very nice. Manual car right? I doubt I will hit the track this season, so I want dyno it.

BTW - This car is just begging for a higher rev limiter. Every dyno run I've seen the power looks to carry well past the 6200 rpm factory limiter.
Yes manual car. Haven't bought credits for HPtuners for it yet. I can scan the car and download the tune in it from the factory. I can see all the tune, just can't change anything yet.
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Old 10-20-2012, 09:21 PM   #9
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Awesome numbers !!!
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Old 10-20-2012, 09:32 PM   #10
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nice numbers!!!
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Old 10-20-2012, 09:36 PM   #11
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...cool, numbers cross around 5,300 RPM, thats the average peak I've noticed with the LSA.
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Old 10-20-2012, 09:41 PM   #12
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Question: Is 5300rpms the optimal shift point?
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Old 10-20-2012, 09:48 PM   #13
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...I would think so.... in a bone stock state, at 5,300 RPM torque falls off, beyond that HP isn't pulling the car.
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Old 10-20-2012, 09:50 PM   #14
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Have been trying to figure it out by feel, not very good at it so far. Thanks
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Old 10-20-2012, 09:59 PM   #15
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Quote:
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Question: Is 5300rpms the optimal shift point?
No! I'd shift it at 6500 if the rev limiter would allow. 5300 is nothing in this car.
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Old 10-20-2012, 10:02 PM   #16
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Quote:
Originally Posted by OldScoolCamaro View Post
...cool, numbers cross around 5,300 RPM, thats the average peak I've noticed with the LSA.
HP and Tq number ALWAYS cross at 5250 rpm.
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Old 10-20-2012, 10:04 PM   #17
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But your torque is dropping off after that point,,,, don't you lose push when that starts to drop. I don't know so that is why I asked.
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Old 10-20-2012, 10:05 PM   #18
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...follow the torque curve....maximum propulsion is supplied by torque, not HP alone.
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Old 10-20-2012, 10:09 PM   #19
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Most stock V8's peak torque around 4000-4500. That doesn't mean you should shift there. You want RPM to fall back to the peak torque AFTER the shift. So shift at 6000 RPM and fall back to 4500 RPM
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Old 10-20-2012, 10:17 PM   #20
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...that will be a tough task for most since it bounces at 6,200 RPM, a more consistant and efficient approach would be to keep it within a tighter RPM envelope I would think, closer to safe side of the maximum torque curve.
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Old 10-20-2012, 10:23 PM   #21
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I would be curious too see what the auto shifts at. Don't know if the nannies effect the auto either.
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Old 10-20-2012, 10:24 PM   #22
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Sorry for jacking your thread, I was just curious as I am close to attempting my first drag strip run....lol
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Old 10-20-2012, 10:26 PM   #23
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Quote:
Originally Posted by tmandoug1 View Post
I would be curious too see what the auto shifts at. Don't know if the nannies effect the auto either.
...since our best time so far came from an A6, this would be the guy to ask...
http://www.camaro5.com/forums/showthread.php?t=254227
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Old 10-20-2012, 10:26 PM   #24
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Quote:
Originally Posted by OldScoolCamaro View Post
...that will be a tough task for most since it bounces at 6,200 RPM, a more consistant and efficient approach would be to keep it within a tighter RPM envelope I would think, closer to safe side of the maximum torque curve.
I agree. I constantly felt like I was short shifting it on the road course to keep from hitting the rev limiter. The limiter I found very quick on the first lap. The rev limiter is safe from the factory but too low. I shift my LS6 Z06 at 7000 rpm. Not that I would advise that with a forced induction car.
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Old 10-20-2012, 10:35 PM   #25
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I am jealous of the N/A motors with a higher limiter, the LSA is deceiving and it pulls to a bounce point short of the driver's feel and shift point ear recognition. Short shifting to the middle of the upper power band is the only safe way to proceed for a consistent time, but one has to be eyes on the shift light or the tach. It's easy to go over.
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