12-14-2019, 01:23 PM | #15 |
Drives: 2019 ZL-1, Shadow Gray, Sold Join Date: Jan 2019
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The independent variable is the dyno. If all the setting on the dyno are correct and the car is being ran correctly, you should be making 525-550 auto and 550-575 manual. If another ZL1 is making the same power on the same dyno.....something is wrong with the dyno and/or the operation of the dyno! IMHO. The car is 650HP at the crank. You HP number of 494 is a 24 percent loss of HP from the crank. Something is not right!
Again, IMHO! |
12-14-2019, 01:57 PM | #16 |
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Is the place doing the dyno also installing the mods? If they are, they could be get dyno to read low, then jump a lot with mods and make you think the mods are more then they are.
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12-14-2019, 04:33 PM | #17 | |
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Quote:
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12-14-2019, 05:59 PM | #18 | |
Drives: ZL1 Join Date: May 2018
Location: Atlanta
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12-14-2019, 06:03 PM | #19 |
@viurniel
Drives: 19 ZLE A10, 15 2SS, 90 300ZXTT Join Date: May 2016
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Many of us have dynoed on Mustang Dynos and this is still the lowest #s I've seen. Not saying your logic is not right, but still man that is a significant deviation from the #s posted here.
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12-14-2019, 06:13 PM | #20 |
Drives: 18 ZL1 nightfall grey A10 Join Date: Apr 2018
Location: RGV Texas
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PR is crazy humid so the numbers could be right due to that.
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12-14-2019, 06:31 PM | #21 |
@viurniel
Drives: 19 ZLE A10, 15 2SS, 90 300ZXTT Join Date: May 2016
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I would be suspect of the fuel... also OP mentioned that the mechanic claimed that the car had knock...
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12-14-2019, 06:37 PM | #22 |
Drives: 18 ZL1-1LE, 10 JKU Join Date: Jul 2018
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12-14-2019, 08:27 PM | #23 | |
Drives: 2019 ZL-1, Shadow Gray, Sold Join Date: Jan 2019
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12-14-2019, 09:24 PM | #24 |
Drives: ZL1 Join Date: May 2018
Location: Atlanta
Posts: 159
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agree. And here is another thing. And Im not saying this is the case here as it doesn't seem to be, but the mustang dyno can easily be manipulated or even programmed wrong to read hi or low. So people that want to show how hi there gains were will produce a low number pre mods and then after parts install etc will recalibrate it showing a higher than normal gain. Ive seen this done first hand. Its shady as hell. I guess best thing to do is run at another location. If its in PR hot and humid will definitely affect it. Being a 1/4 mile guy in the past I only used dyno's to calculate increase. Too many people want to see these huge numbers and then they go to the track and run stupid slow times and we all just sit back and laugh lol. Hope OP gets to the bottom of it.
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12-30-2019, 06:08 PM | #25 |
Drives: 2018 Camaro ZL1 1LE Join Date: Mar 2017
Location: PR
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Well guys here are the numbers after the mods and tune. The car feels and run great.
Here is the video of the tune with the final numbers. Also I took the car to the drag strip and saw a 5mph increase from stock. I managed to race the car only two times so there is definitely room for improvement. I'm not counting the 1/4mile time because I had a horrible launch and need more time to practice. Anyway here is the video; https://youtu.be/4LjKuuUcwxU |
12-31-2019, 11:08 AM | #26 |
Drives: 2018 ZL1 Coupe NFG M6 Join Date: May 2017
Location: Nolensville, TN
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Great gains! I also had great gains from my intake/exhaust with secondary cat delete. I didn't get any tuning done however. Only I would have done different is throw in a ported throttle body while you where at it.
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12-31-2019, 12:02 PM | #27 |
Drives: 2018 ZL1 1LE Join Date: May 2019
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Good little power jump, but still not sure why it sounds like your motor revs super slow. Maybe it is fuel who knows. But as long as youre happy thats all that matters.
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12-31-2019, 12:46 PM | #28 |
Drives: 2019 ZL1 Join Date: Oct 2019
Location: GA
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Has anyone dyno'd the secondary cat delete alone by chance before/after?
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