Concerns

headgamez · 06-26-2019, 02:51 PM

Hello All,
Finally got the car to the dyno today, and not sure what to make of it. After 3 pulls the car put down and average of 503hp and 520ft/lb. Only mods are a cut factory air box, katech TB, and secondary cat delete.

Not sure what the problem might be, but willing to accept suggestions. AFR looked good throughout, and the car has excellent road manners. Will probably set the car back to stock (except for exhaust), and head back to the dyno next week.

HG

2018ZL1 · 06-26-2019, 02:54 PM

Quote:

Originally Posted by headgamez

Hello All,
Finally got the car to the dyno today, and not sure what to make of it. After 3 pulls the car put down and average of 503hp and 520ft/lb. Only mods are a cut factory air box, katech TB, and secondary cat delete.

Not sure what the problem might be, but willing to accept suggestions. AFR looked good throughout, and the car has excellent road manners. Will probably set the car back to stock (except for exhaust), and head back to the dyno next week.

HG

I would say that dyno is a tad off!

A stock un touched Z will put down 550ish at the wheels. I would think with mods you have it would put at least 20-30 more WHP down! Something is up with that dyno!

headgamez · 06-26-2019, 02:56 PM

Quote:

Originally Posted by 2018ZL1

I would say that dyno is a tad off!

A stock un touched Z will put down 550ish at the wheels. I would think with mods you have it would put at least 20-30 more WHP down! Something is up with that dyno!

I am not sure, but he was trying to figure out what gear to run the car in. I thought that you run 1:1, which I thought was 7th gear in the A10, which I have.

gotswap · 06-26-2019, 02:58 PM

What altitude are you at?

headgamez · 06-26-2019, 03:01 PM

Quote:

Originally Posted by gotswap

What altitude are you at?

In Kenosha, WI if that helps....

SJFGTO · 06-26-2019, 03:01 PM

Hard to say much without the dyno sheet. An automatic will dyno a bit less than a manual. I would not sweat the numbers if your car is running strong. A stingy dyno is no reason to worry. Could be the temp/ humidity in the dyno room too.

headgamez · 06-26-2019, 03:02 PM

Quote:

Originally Posted by SJFGTO

Hard to say much without the dyno sheet. An automatic will dyno a bit less than a manual. I would not sweat the numbers if your car is running strong. A stingy dyno is no reason to worry. Could be the temp/ humidity in the dyno room too.

Not really worried, just figured I got a factory slug!!!

DenverTaco07 · 06-26-2019, 03:02 PM

what's a cut factory airbox?

how long did you have the TB on before testing, did you pull battery overnight after installation.

headgamez · 06-26-2019, 03:03 PM

Quote:

Originally Posted by DenverTaco07

what's a cut factory airbox?

Just opened up the bottom a tad bit.

2018ZL1 · 06-26-2019, 03:14 PM

Quote:

Originally Posted by headgamez

I am not sure, but he was trying to figure out what gear to run the car in. I thought that you run 1:1, which I thought was 7th gear in the A10, which I have.

That is the correct gear to be in with an A10

headgamez · 06-26-2019, 03:18 PM

Quote:

Originally Posted by DenverTaco07

what's a cut factory airbox?

how long did you have the TB on before testing, did you pull battery overnight after installation.

TB has been on over three weeks. Car has excellent driving manners. No surging....nothing is amiss AFAIK.

DenverTaco07 · 06-26-2019, 03:20 PM

well, i can only suggest finding another stock ZL1 buddy in the area with an A10 and dyno same day, same dyno.

headgamez · 06-26-2019, 03:22 PM

Quote:

Originally Posted by DenverTaco07

well, i can only suggest finding another stock ZL1 buddy in the area with an A10 and dyno same day, same dyno.

Yeah the guys at the shop are extremely helpful!! They are pulling files on stock Zs and will overlay the graphs..... I am a little concerned about the gear that the dyno was run in. He kept saying that it exceeded the dyno speed capacity, or something like that.

Lafourche1 · 06-26-2019, 03:55 PM

Quote:

Originally Posted by headgamez

Yeah the guys at the shop area extremely helpful!! They are pulling files on stock Zs and will overlaying the graphs..... I am a little concerned about the gear that the dyno was run in. He kept saying that it exceeded the dyno speed capacity, or something like that.

That might be true. 7th gear pulls well north of 150MPH IIRC.

EDIT: 180MPH

https://www.roadandtrack.com/new-car...ar-at-180-mph/

06-26-2019, 02:51 PM	#1
headgamez Drives: 2018 Camaro ZL1 Join Date: Feb 2011 Location: Midwest Posts: 261	Concerns Hello All, Finally got the car to the dyno today, and not sure what to make of it. After 3 pulls the car put down and average of 503hp and 520ft/lb. Only mods are a cut factory air box, katech TB, and secondary cat delete. Not sure what the problem might be, but willing to accept suggestions. AFR looked good throughout, and the car has excellent road manners. Will probably set the car back to stock (except for exhaust), and head back to the dyno next week. HG

06-26-2019, 03:01 PM	#6
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,075	Hard to say much without the dyno sheet. An automatic will dyno a bit less than a manual. I would not sweat the numbers if your car is running strong. A stingy dyno is no reason to worry. Could be the temp/ humidity in the dyno room too. __________________ 2018 Camaro ZL1 1LE NFG; ARH 2” headers, catless mids, ARH full exhaust, Lingenfelter 18% lower pulley, ATI Harmonic Balancer, Roto-fab CAI, EE-catch can, TM ported TB, NX Lid, BMR strut tower brace. Aeroforce dual pod interceptor gauges. Tuned by Vengeance Racing!!! 644 HP @ 6250 rpm / 689 trq @ 3660 rpm Four that wanna own me Two that wanna stone me One says she's a friend of mine...

06-26-2019, 03:02 PM	#8
DenverTaco07 Drives: 2017 SS 1LE, 2017 Volt, 2013 Pilot Join Date: May 2014 Location: Colorado Posts: 4,274	what's a cut factory airbox? how long did you have the TB on before testing, did you pull battery overnight after installation. __________________ 2017 SS 1LE \| HBM \| Vortech V3-Si supercharger (620RWHP and 575ft lbs) \| PDR \| Black Bowties \| Illuminated Front Black Bowtie \| Illuminated Door Sills \| Smoked Tails \| vented seats mod Last edited by DenverTaco07; 06-26-2019 at 03:13 PM.

06-26-2019, 03:20 PM	#12
DenverTaco07 Drives: 2017 SS 1LE, 2017 Volt, 2013 Pilot Join Date: May 2014 Location: Colorado Posts: 4,274	well, i can only suggest finding another stock ZL1 buddy in the area with an A10 and dyno same day, same dyno. __________________ 2017 SS 1LE \| HBM \| Vortech V3-Si supercharger (620RWHP and 575ft lbs) \| PDR \| Black Bowties \| Illuminated Front Black Bowtie \| Illuminated Door Sills \| Smoked Tails \| vented seats mod

06-26-2019, 02:58 PM	#4
gotswap Drives: 2019 ZL1 Crush Join Date: Jan 2019 Location: Colorado Springs Posts: 564	What altitude are you at?

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