Homepage Garage Wiki Register Social Groups Calendar Search Today's Posts Mark Forums Read
#Camaro6
Go Back   CAMARO6 > CAMARO6.com General Forums > ZL1 Discussions


Bigwormgraphix


Post Reply
 
Thread Tools
Old 05-08-2022, 04:26 PM   #1
Smokin19

 
Drives: 19' ZL1 A10, w/pdr
Join Date: Sep 2014
Location: S.W. ohio
Posts: 1,406
Mustang dyno vs Dyno Jet

One can go on line and read for hrs what others say are the differences between the Mustang and Dynojet tuning tools. Let me start by saying I know only some basic understanding of the two. Recently had my build tuned on a dynamic loaded Mustang dyno. This one has been used for about 10 years. Asking the builder who dynoed the car what it might pull on a Dynojet he sort of laughed and said pick a number.

He could only say some had gone to a different shop to get a Dynotune number and they varied from 6-10 % higher. So many variables involved to get a straight number. So I am asking here who has had a Mustang dyno and then had a Dyno jet run performed.

Again there would be obviously differences involved but, I am looking for more of a consensus from here on the site. Looking at other's signatures stating their numbers I am curious as to, what dyno tool was used to get those numbers. This would make the signature info clearer as to obtain those results.
__________________
BTR Stg II cam w/ 38% fuel lobe, ARH 2" headers into 3" w/cats, AWE Touring, Kong X port, Weapon X triple ht exchangers, NW 103, Rotofab big gulp, DSX lowside, TCM tune, BMR Lockout, Mustang dyno 720 rwhp, 634 rwtq.
Smokin19 is offline   Reply With Quote
Old 05-08-2022, 04:47 PM   #2
ZL1Atlanta
 
ZL1Atlanta's Avatar
 
Drives: 2017 Chevrolet Camaro ZL1
Join Date: Jul 2018
Location: Canton, GA
Posts: 255
To your point, there are so many variables beyond even just the type of dyno, it almost makes the HP numbers in signatures useless. Until recently my car was always ran on a DynoJet in STD, which by everything that is known about STD, should be high. The car on the track, however, shows a trap speed that suggests it’s right on, if not low. I’ve seen trap speeds of cars that were ran on Mustang dyno’s and they don’t line up with their claimed HP. For these reasons I try to not get too caught up in peoples dyno numbers unless they are using the same one to compare changes made to the car. I know for some the dyno number is most important, so to each their own.
__________________
2017 ZL1 - PB 8.20 @ 173 MPH @ 3750 lbs @ 1038 DA (work in progress)

Built by Vengeance Racing, tuned by Elite Tuned
ZL1Atlanta is offline   Reply With Quote
Old 05-08-2022, 05:11 PM   #3
TXCSSU
Account Suspended
 
Drives: 2022 ZL1 M6/Nissan Leaf
Join Date: May 2016
Location: Dallas
Posts: 1,140
I'd go so far to say that even the handheld devices can be used reliably to measure HP, as long as you enter all your information correctly (weight, have a good level straightaway, and are in the right gear). Personally, I'd use a handheld, and go to just about any dyno shop, but preferably one that's been around for a while. One thing to keep in mind, some dyno shop owners know that if their dyno reads a bit higher, that more people will go to their shop repeatedly. I personally just want consistency. Also, I've heard that Mustang dynos tend to read a little lower than other dynos, which is fine if I go to that shop after performing my mods. The baseline is the key, which is why I also recommend a handheld device, which will give you a 2nd option to compare any possible gains.
TXCSSU is offline   Reply With Quote
Old 05-08-2022, 09:41 PM   #4
David Gordon
 
Drives: 2018 Grandsport Corvette
Join Date: Apr 2022
Location: Granbury
Posts: 262
I have always just figured trap speed is a very good reading on horsepower, Not ET.
__________________
2022 Orange ZL1
4/07/22 7-01-22
Past
2018 Gransport
2018 GT Premium
2009 ZO6
2008 Z-51 Vette
2001 Stroked/ blown C-5
2001 SS
1998 SS vert.
Garage
2020 Range Rover V-8
2021 Ford F-150 Platinum Powerboost
David Gordon is offline   Reply With Quote
Old 05-08-2022, 10:17 PM   #5
Gunkk
Thank you Al Oppenheiser!
 
Gunkk's Avatar
 
Drives: Red Hot A10 ZL1 Convertible
Join Date: Jun 2017
Location: Sarasota, FL
Posts: 4,648
Quote:
Originally Posted by David Gordon View Post
trap speed is a very good reading on horsepower
Gunkk is offline   Reply With Quote
Old 05-08-2022, 10:28 PM   #6
BlaqWhole
Account Suspended
 
Drives: 2017 Camaro ZL1 A10
Join Date: May 2012
Location: NJ
Posts: 7,692
My 93 octane tune on a Dynojet in 6th gear made 745 RWHP.

I then had it on a Mustang Dyno at a different shop and it made 688 RWHP in 6th gear with 93 octane.

So yea that is roughly 6-7 percent difference.

Although the shop that had the Mustang Dyno did retune it before they got those numbers. But their tune was more for driveability so they didn't really touch anything to impact the power.

The problem with dyno shops is a lot of them simply plug in numbers here and there and factor in this and that and before you know it they're handing out inflated numbers like candy on Halloween. And they do that because if shop A builds 5 cars and they're all making "900+ RWHP" and shop B is building similar cars but they're making only "820 RWHP" then people are all gonna want shop A doing their work because they're getting inflated numbers. And now there is some new type of dyno that spits out even higher numbers than a Dynojet does. So I wouldn't put too much stock into what the numbers are. Track times, ET, and 60-130 will paint a much better picture than a dyno can.
BlaqWhole is offline   Reply With Quote
Old 05-09-2022, 01:54 AM   #7
synolimit
 
Drives: 22 ZL1 1LE A10
Join Date: Feb 2022
Location: Ohio
Posts: 208
You can make a mustang read whatever your little heart desires by changing the perimeters. It’s an electronic load cell. By dragging the brake etc it’ll change the numbers. Great for tuning a car pretending it’s on a road, going up a hill, down a hill etc. For these reasons no mustang will read like another and tuners will always mess with them and who knows if they ever reset to factory. Not to mention the brakes or the cell can wear out over time and need service giving wrong numbers.

A Dynojet is an inertia dyno. Spin a big heavy ass drum up to speed in X amount of time and you get a number. You cannot change a Dynojet, you cannot mod it, there’s nothing to wear out but maybe a bearing. Dynojet has set the calculations and you cannot change them. Dynojets will always read true and extremely close from 1 to an other. If you want real numbers, it’s a Dynojet as long as you don’t cheat and use the SAE correction calculation. STD is old school and reads higher and your motor was tested using SAE so use SAE!!!!!!! Uncorrected is only useful to see your numbers in read time vs a perfect real world temp, humidity, barometric etc. Dynojet using your cars 1:1 gear using uncorrected will give you 100% accurate numbers if you pull off the dyno and go do a drag run since only a real HP number can move a x,xxxlbs object 1/4 mile in x.xx seconds. It doesn’t make sense to do an SAE or STD then go drag race when it’s not the ideal weather and temps. Your times won’t match you HP numbers.
synolimit is offline   Reply With Quote
Old 05-09-2022, 07:38 AM   #8
EDFHOBBIES
Dyno Show Queen LOL
 
EDFHOBBIES's Avatar
 
Drives: 16 SS & 17 ZL1 Both Yellow
Join Date: Jan 2014
Location: Houston
Posts: 4,263
Send a message via Skype™ to EDFHOBBIES
Quote:
Originally Posted by Gunkk View Post
Okay... so what would a 141mph be in hp?
__________________


Kong Ported 2650, Crawford Racing Port Injection, Weapon X 112mm Adapter, NW112mm TB, Livernois Ported LT4 Heads, Lingenfelter GT32 stealth cam, Haltech Elite, and Carbon by Trufiber
EDFHOBBIES is offline   Reply With Quote
Old 05-09-2022, 10:05 AM   #9
ZL1Atlanta
 
ZL1Atlanta's Avatar
 
Drives: 2017 Chevrolet Camaro ZL1
Join Date: Jul 2018
Location: Canton, GA
Posts: 255
Quote:
Originally Posted by Gunkk View Post
This is true, but to be useful vehicle weight is needed. Most cars in here are likely stock weight and close to the same, but drivers could vary 150+ lbs. Haha.
__________________
2017 ZL1 - PB 8.20 @ 173 MPH @ 3750 lbs @ 1038 DA (work in progress)

Built by Vengeance Racing, tuned by Elite Tuned
ZL1Atlanta is offline   Reply With Quote
Old 05-09-2022, 10:13 AM   #10
Smokin19

 
Drives: 19' ZL1 A10, w/pdr
Join Date: Sep 2014
Location: S.W. ohio
Posts: 1,406
My point in this is when people look at your signature with mods and whp it would help others trying the same build to get an idea of what's needed to obtain similar numbers. I looked at what others had done in order to get a feel for what I needed to get similar results. I think we have established the difference you can get from different tuning equipment. Can we see more members displaying their tuning by the various methods is my intention, a simple Mustang or Dynojet would suffice.
__________________
BTR Stg II cam w/ 38% fuel lobe, ARH 2" headers into 3" w/cats, AWE Touring, Kong X port, Weapon X triple ht exchangers, NW 103, Rotofab big gulp, DSX lowside, TCM tune, BMR Lockout, Mustang dyno 720 rwhp, 634 rwtq.
Smokin19 is offline   Reply With Quote
Old 05-09-2022, 10:16 AM   #11
JSH


 
JSH's Avatar
 
Drives: '20 ZLE
Join Date: Jun 2020
Location: At high elevation
Posts: 2,705
DynoComm and Dynojet
__________________
'20 ZL1 1LE A10
OEM forged LT4 376 cid short block,
Custom long block,
Edelbrock 2650, snout/inlet ported by KONG,
All bolt-ons,
DynoJet - 100 oct:
965whp/870trq, NW 103mm, 3"/9.18" pullies,
981whp/967trq, NW 112mm, 2.75"/9.18" pullies,
DynoJet - 104 oct: Dyno pending,
?whp/?trq, NW 112mm, 2.75"/9.18" pullies,
Nitto N05 275/19, TOYO R888R 325/19,
Denver 60 ft./1/4 mile/mph/DA (March 2023).
JSH is offline   Reply With Quote
Old 05-09-2022, 10:45 AM   #12
clg82
 
Drives: 2020 Camaro ZL1
Join Date: Oct 2020
Location: California
Posts: 747
Quote:
Originally Posted by BlaqWhole View Post
My 93 octane tune on a Dynojet in 6th gear made 745 RWHP.

I then had it on a Mustang Dyno at a different shop and it made 688 RWHP in 6th gear with 93 octane.

So yea that is roughly 6-7 percent difference.

Although the shop that had the Mustang Dyno did retune it before they got those numbers. But their tune was more for driveability so they didn't really touch anything to impact the power.

The problem with dyno shops is a lot of them simply plug in numbers here and there and factor in this and that and before you know it they're handing out inflated numbers like candy on Halloween. And they do that because if shop A builds 5 cars and they're all making "900+ RWHP" and shop B is building similar cars but they're making only "820 RWHP" then people are all gonna want shop A doing their work because they're getting inflated numbers. And now there is some new type of dyno that spits out even higher numbers than a Dynojet does. So I wouldn't put too much stock into what the numbers are. Track times, ET, and 60-130 will paint a much better picture than a dyno can.
Isn't 7th gear our 1:1?
__________________
2020 ZL1 1LE A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| Borla S-Type Catback Exhaust| Eibach Pro| PPF| Ceramic| BCForged HCS21
clg82 is offline   Reply With Quote
Old 05-09-2022, 10:57 AM   #13
arpad_m


 
arpad_m's Avatar
 
Drives: 2018 Camaro 2SS A8
Join Date: Jul 2017
Location: East Tennessee
Posts: 8,937
Quote:
Originally Posted by clg82 View Post
Isn't 7th gear our 1:1?
This may have been done to limit the max speed, many dynos do not like 200 mph or more.
__________________
2018 Camaro 2SS — G7E MX0 NPP F55 IO6
735 rwhp | 665 rwtq

Magnuson TVS 2300 80mm pulley | Kooks 1 7/8" LT headers | JRE smooth idle terminator cam | LT4 FS & injectors | TSP forged pistons & rods
JMS PowerMAX | DSX flex fuel kit | Roto-Fab CAI | Soler 95mm LT5 TB | 1LE wheels | 1LE brakes | BMR rear cradle lockout | JRE custom tune

1100 - 1/30/18 | 2000 - 1/31/18
3000 - 2/06/18 TPW 2/26/18
3400 - 2/19/18 | 3800 - 2/26/18
4300 - 2/27/18 | 4B00 - 3/01/18
4200 - 3/05/18 | 4800 - 3/14/18
5000 - 3/16/18 | 6000 - 3/19/18
arpad_m is offline   Reply With Quote
Old 05-09-2022, 01:48 PM   #14
clg82
 
Drives: 2020 Camaro ZL1
Join Date: Oct 2020
Location: California
Posts: 747
Quote:
Originally Posted by arpad_m View Post
This may have been done to limit the max speed, many dynos do not like 200 mph or more.
Got it, I believe who dynoed my car said he got it up to 190mph.... that's insane!
__________________
2020 ZL1 1LE A10 Shadow Gray Metallic
Magnuson Magnum DI TVS2650R| Mamo Throttle Body V2| RotoFab Intake| Borla S-Type Catback Exhaust| Eibach Pro| PPF| Ceramic| BCForged HCS21
clg82 is offline   Reply With Quote
 
Post Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 11:54 AM.


Powered by vBulletin® Version 3.8.9 Beta 4
Copyright ©2000 - 2023, vBulletin Solutions, Inc.