What is the percentage difference between a Mustang dyno and a common Dynojet?

2018 ZL1 HBM · 12-11-2020, 07:27 PM

Trying to figure how much higher a Dynojet would read than a Mustang dyno? Recently had work done at a place that uses a Mustang dyno, which I have read gives significantly lower (closer to true) readings. Want to know how much higher a regular dyno would rate my car......

IneedAZ · 12-11-2020, 09:15 PM

Also, when you compare to others you need to know if your numbers are uncorrected, SAE, or std and then you need to know what there numbers were based off. My numbers were low IMO, but then I saw the paper showed uncorrected.

LiqTenExp · 12-11-2020, 09:19 PM

Where did you have your mustang dyno run?

A dynojet dyno can read as much as 10% higher than some dynamic load dynos depending on settings

ninetres · 12-11-2020, 11:40 PM

What’s important is what your car made on that Dyno before the work they did, and then what it made after.

In general Mustangs read a bit lower but there are too many variables to toss a number out there. That’s why comparing dyno runs on different dynos is silly.

Z OH 6 · 12-12-2020, 04:37 AM

Quote:

Originally Posted by ninetres

What’s important is what your car made on that Dyno before the work they did, and then what it made after.

In general Mustangs read a bit lower but there are too many variables to toss a number out there. That’s why comparing dyno runs on different dynos is silly.

This ^^^^

KingLT1 · 12-12-2020, 09:29 AM

Quote:

Originally Posted by ninetres

What’s important is what your car made on that Dyno before the work they did, and then what it made after.

In general Mustangs read a bit lower but there are too many variables to toss a number out there. That’s why comparing dyno runs on different dynos is silly.

Camaro1973 · 12-12-2020, 10:48 AM

Mustang Dynos can vary greatly, depending on the type of mustang dyno and how its setup. Some can read 5-10% lower and some can read %15 lower. Its best you ask what generally their dyno does compared to a dynojet. Alot of places with a mustang dyno will dyno the same car on a dynojet and then plug that % difference into their software so it spits out a dynojet number along with the mustang numbers.

SJFGTO · 12-12-2020, 01:20 PM

That’s like asking what’s the difference between a blue shirt from Gucci and one from Walmart. Sure, one is always higher in price, but beyond that, too many variables. Heck, a Dyno Jet can vary significantly on the same car. As a very rough guess I’d say the difference on the same day under the same conditions would be 10-15% lower on the Mustang.

s346k · 12-12-2020, 01:35 PM

it really surprises me how many people have such a hard time grasping that different dynos are going to read differently. id much rather have a low dyno number to divulge. not to mention, the operator can print whichever dyno run you want on the graph...

edit: my contribution: the dyno my car was on (dyno dynamics) read 14-18% low when compared to some dynojets.

zincgt · 12-12-2020, 01:54 PM

My mustang dyno reads 7% lower then the local dyno jet, we have tested 5-6 cars.

12-11-2020, 07:27 PM	#1
2018 ZL1 HBM Account Suspended Drives: 2018 ZL1 A10 Garnet Red Tintcoat Join Date: Nov 2019 Location: NJ Posts: 50	What is the percentage difference between a Mustang dyno and a common Dynojet? Trying to figure how much higher a Dynojet would read than a Mustang dyno? Recently had work done at a place that uses a Mustang dyno, which I have read gives significantly lower (closer to true) readings. Want to know how much higher a regular dyno would rate my car......

12-11-2020, 09:15 PM	#2
IneedAZ Drives: 2017 ZL1 A10 & 2021 BMW M340i x Dr Join Date: Mar 2009 Location: Tampa Posts: 5,110 View My Garage	Also, when you compare to others you need to know if your numbers are uncorrected, SAE, or std and then you need to know what there numbers were based off. My numbers were low IMO, but then I saw the paper showed uncorrected. __________________ Sold 2012 2LT RS 12.3@112 old setup Sold 1967 Camaro Pro Street. Ran 10's mild BB on NOS. 2017 HyperBlue ZL1 A10 Born 3/17/17Delivered 4/08/17 2020 Build: Mag2650, BTR Stage2, NW103, BG, 14% lower, 90mm upper, ARH 2" Long system w/no cats, SW Legend mufflers. 807hp/762tq on 93 gas and 848hp/792tq on e47 Sold 2018 (Go Mango) Dodge Charger Daytona 392 Daily Driver Daily Driver 2021 BMW M340i Xdrive

12-11-2020, 09:19 PM	#3
LiqTenExp Drives: 2017 ZL1 Join Date: Jan 2017 Location: NJ Posts: 905	Where did you have your mustang dyno run? A dynojet dyno can read as much as 10% higher than some dynamic load dynos depending on settings __________________ 2017 Camaro ZL1 Coupe M6 (847whp Dynojet on 93)

12-12-2020, 01:20 PM	#8
SJFGTO Oh Oh it's Friday Night! Drives: 2018 ZL1 1LE Nightfall Gray Join Date: Jan 2018 Location: Walton Woods Posts: 1,061	That’s like asking what’s the difference between a blue shirt from Gucci and one from Walmart. Sure, one is always higher in price, but beyond that, too many variables. Heck, a Dyno Jet can vary significantly on the same car. As a very rough guess I’d say the difference on the same day under the same conditions would be 10-15% lower on the Mustang. __________________ 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...

12-12-2020, 01:35 PM	#9
s346k Drives: like an old lady Join Date: Jun 2012 Location: indiana Posts: 2,395	it really surprises me how many people have such a hard time grasping that different dynos are going to read differently. id much rather have a low dyno number to divulge. not to mention, the operator can print whichever dyno run you want on the graph... edit: my contribution: the dyno my car was on (dyno dynamics) read 14-18% low when compared to some dynojets. __________________ 2016+ camaro: everyone’s first car

12-11-2020, 11:40 PM	#4
ninetres Drives: Crush ZLE M6 \| 2000 Corvette FRC Join Date: Jun 2010 Location: Cencal Posts: 1,659	What’s important is what your car made on that Dyno before the work they did, and then what it made after. In general Mustangs read a bit lower but there are too many variables to toss a number out there. That’s why comparing dyno runs on different dynos is silly.

12-12-2020, 10:48 AM	#7
Camaro1973 Drives: 2019 ZL1 Join Date: Mar 2019 Location: NJ Posts: 1,534	Mustang Dynos can vary greatly, depending on the type of mustang dyno and how its setup. Some can read 5-10% lower and some can read %15 lower. Its best you ask what generally their dyno does compared to a dynojet. Alot of places with a mustang dyno will dyno the same car on a dynojet and then plug that % difference into their software so it spits out a dynojet number along with the mustang numbers.

12-12-2020, 01:54 PM	#10
zincgt Drives: 2017 A10 ZL1 Join Date: Jul 2011 Location: CO Posts: 52	My mustang dyno reads 7% lower then the local dyno jet, we have tested 5-6 cars.

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