Mustang dyno correction factor 2022 The correction factor when road-testing at Keystone Raceway was 0. STD correction generally reports 4% higher numbers. Oct 1, 2023 · The correction factor needs to change based on these conditions. 5, and the 340 would translate to only 306? Jun 17, 2023 · Dyno operators typically apply one of these standards as a DCF (Dyno Correction Factor), to electronically correct the HP and torque results back to the standard, when measuring in non standard conditions. No “correction” factor has been applied to account for drive-train losses. Dec 3, 2015 · Crazy my 3. Then there's the argument of proper air intake, that small intake fan near the grill with the hood open is definitely not simulating a pull in the real world and is more susceptible to heat soak (timing pulled due to hot IATs) Most modern dynos, including mustang, try to display flywheel torque and HP by using this correction factor along with a correction factor that reflects losses due to friction in the dyno itself (mainly bearings) so let’s say this adds another 2%. Feb 6, 2025 · The dyno correction factor takes into account all of the effects of temperature, altitude, atmospheric pressure and humidity to arrive at corrected horsepower and torque values. " EXAMPLE 101 Jun 10, 2004 · The relative horsepower, and the dyno correction factor, allow mathematical calculation of the affects of air density on the wide-open-throttle horsepower and torque. Learn how tuning shops inflate numbers and what red flags to watch for before you pay. 56 ftlbs (the highest delta was 18. These correction factors are used by dyno shops to correct for nonstandard temperature, barometric pressure and humidity. May 17, 2012 · These correction factors do not apply to force indiction cars, well people apply them but the numbers are inaccurate. I would assume Hennessey would be using correction factor. Personally I am a big fan of uncorrected numbers mainly because I couldnt give a rats ass about comparing to some one else, Id like to see what hte car puts out at xxx conditions at whatever mod level. 23 ftlbs more than Mar 10, 2022 · STP and SAE are the two most common correction factors used. 14. TIA Feb 20, 2022 · With common bolt ons, an E30 tune can take you up to 400 whp, with a J607 Dyno correction factor, but head gasket failures become more common over 370 whp. Kooks 1 7/8 LTH. 400whp SAE corrected. SAE is usually a stricter factor, higher correction factor, lower HP/TQ reading. You take your SAE corrected results and subtract 12% from them. Apr 18, 2025 · Waited until 11k miles. By joining our community, , you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Your numbers looks similar to mine using the mustang dyno correction factor of . This calculator converts your dyno run into corrected SAE, MSA and STD horsepower. :willy: I did a little research and found a good read: There are few standards used in the dyno world Sep 21, 2023 · If that is SAE correction factor than 428 from the auto is good. MD: A Mustang Dyno ONLY uses SAE Corrections. It can make quite a difference, and an unscrupulous dyno operator could potentially "doctor" the HP/TQ numbers higher to satisfy a customer by entering "pessimistic" atmospheric conditions (or a higher Aug 26, 2023 · 2024 Mustang GT Dyno! Multiple Pulls & Correction Factors Explained SID297 Aug 25, 2023 Aug 25, 2023 #1 Whether you need real dyno graphs or fake dyno sheets, our tool allows you to input your data and generate professional-looking results. I used two Dynojets with my Mustangs, one is a heavier drum/higher horsepower unit. If you are not sure what type of ecu/tune your vehicle needs, select Show all ECU results and discuss with your preferred workshops. Ambient conditions will affect the correction factor, for example, on a day with 110-degree temperatures, steaming humidity and very low barometer readings, the correction will be higher to correct the power numbers back to standard conditions. X pipe. Sep 19, 2024 · The key takeaway is the 20 extra horsepower comparing the S550 Mustang to the 2024 S650 Mustang back to back on the same dyno. There are no adjustments (calibration) to be made by K&N on either the two-wheel or four-wheel drive dyno. Here are the results. Mar 24, 2019 · The average for 2018s seems to be 410-420 rwhp which if your dyno operator is correct, appears to be where your at. We ran it in various modes in stock form, Sport, Sport Plus, etc, and ran it with a tune and a common type mod configuration, cat back, intake tube, mild pump gas tune etc. And my position is: The correction factor used for drivetrain losses should be the same no matter what kind Then there is the use, and abuse, of 'correction' factors. mustang dyno, correction factors, atmospheric conditions, etc. May 20, 2021 · Of course, altitude/temp/type of dyno etc all play a factor. 7/12. 1495*CFstd - 0. 20. Jul 2, 2022 · Dyno Correction Factors - Real Wheel Horsepower - GM High-Tech Performance Magazine Last month, we covered how a dyno operates and some of the mathematics involved with recording and calculating the coveted horsepower and torque numbers that en www. You will also see AFR graphs scaled DOWN to hide flaws in the curve. motortrend. Engine is off, handbrake on 2. Registration Jun 27, 2006 · The dyno computer says Okthe current baro is XXX, the temp is XXX, humidity is XXX, and formulates a factor based on tables. 36 hp at 5000), and an average increase of 15. As a side the average on GT350 numbers is mid 440s to 460 rwhp. The only dyno that you can really compare on the internet is a dynojet. Aug 25, 2023 · The 2024 Mustang GT has been back at LMR HQ for less than 24 hours and we've already put it on the dyno! The cars with active exhaust are rated at 486 HP / 418 TQ and the GTs without active exha Sep 13, 2011 · Understanding correction factors and the math involved can be a fun mental exercise, but the real point here is to understand how dyno graphs can be compared and what to do if you're comparing two Jul 22, 2009 · C6 Tech/Performance - Dyno Sheets - SAE vs. a load bearing dyno? Oct 28, 2011 · So your correction factor is 1. Oct 14, 2023 · We've done this test on a 2021 Mustang GT in the past, but with the new Gen 4 Coyote, it's time for a repeat with the 2024 Mustang GT! When it comes to resonator deletes, it's an age-old debate between X-Pipe or H-Pipe and which sounds better. Dyno correction calculator Correct your engine's power output for different atmospheric conditions using our easy-to-use calculator. I wonder why on the after video the correction factor HP numbers are lower than the actual HP numbers. I wouldn't worry too much about the final numbers. Then it takes the SAE or STD correction factor and divides it by this formulated factor to get a final factor. If that torque curve looks flat for the peak region then it's the factory limiter. 962, a correction reduction of 3. 9595 (removing 4. Nov 30, 2016 · To add onto LWS43's explanation, dyno correction factors also play a part in your final reading too. . Apr 23, 2023 · Bone stock base 2022 GT500, 2600 miles on a Dynojet. 07. STD and MPH (insert your own version name here) So Feb 15, 2007 · The dyno correction factor takes into account all of the effects of temperature, altitude, atmospheric pressure and humidity to arrive at corrected horsepower and torque values. Release handbrake, then pull 2 times, and hold 9 Jun 12, 2006 · Turbo correction factor Skipping all the math, (if someone really wants to see it let me know), for a turbocharged engine with a constant boost pressure, (after the turbos are fully spooled), it can be shown that the indicated power and torque would scale with pressure as αp = (Pref + Pb)/ [Pdry (1 + Pb/Patm)] Jun 5, 2023 · Personally, if reliability is a concern, I wouldn't mod/tune to over 320 whp, with a J607 STD Dyno correction factor, using 93 octane on the stock long block and turbo. See correction factor calculation #37. Release handbrake 4. Aug 30, 2023 · Joined Aug 2, 2013 Threads 41 Messages 1,265 Reaction score 1,234 Location Texas Vehicle (s) 2024 Mustang Dark Horse Dec 23, 2013 · Mustang dynos can give you uncorrected and SAE corrected. Did I just get unlucky and get a factory slug or is it because of weather or gas? Only have 91 octane here in California, used For the past 50 years, Mustang Dynamometer has offered clients a world of testing solutions and technical expertise Mustang Dynamometer offers the best choice for serious performance tuners and aftermarket product developers for a reason: they know the facts. Was the temperature significantly cooler than when the car was dynoed before headers? Sep 22, 2022 · In Mustang Dynamometer chassis dynamometer software, when an engine-crankshaft relative torque value is reported, it is simply a calculated value as described above. now if your car makes 25 pounds of boost your correction factor is 39. Apr 24, 2015 · Correction factors were really designed for engine dyno labs, for a case where your supply air conditioner maybe can't hold the temperature and pressure as tightly as it you would like. Jan 25, 2010 · There is zero direct corralation. And my position is: The correction factor used for drivetrain losses should be the same no matter what kind Jul 9, 2025 · Check out this dyno of our employee Patrick's 2022 Mustang GT 5. I think it takes the initial values inputted by the dyno shop, and uses them as the basis for all the other conversions. It says SAE 3 on the top right of the sheet but on the bottom it says CF: SAE 0. Often times it's hard to really explain how this can Nov 20, 2011 · The correction factor for the day when testing was performed on the Mustang dyno was 0. As conventional correction factors such as SAE, STD, DIN, etc all are based on various ambient conditions, the chosen correction factor takes into account ambient conditions such as humidity, temperature and absolute pressure. The purpose of using “corrected” dyno data is that it allows the power output under different temperature, barometric pressure and humidity conditions to be compared. 9) when a N/A car cf is 14. 12 correction factor would give you an uncorrected result of 352whp. If you dyno your car at sea level and then dyno it at altitude (say Denver), then they'll use a correction factor to "factor" the change in altitude. 98 percent correction factor that actually reduced the raw numbers from 577. My car has been on one Mustang Dyno and two Dynojets. 05 percent). No more GTO. Dec 5, 2022 · List the hp, as some of the sheets are hard to read. 4/26. 27 ftlbs at 3600). Aug 5, 2007 · The results, if accurate, mean that the new tune, by eliminating the timing pullback due to detonation, delivers, from 3600 to 5500, an average increase of 13. Are final tuning optimal dyno settings different on an Inertia dyno vs. Oct 6, 2019 · EDIT: Mainline dynos are load based like mustang dynos. Apr 10, 2025 · The Dyno Correction Calculator adjusts engine power and torque numbers from a dynamometer (dyno) test to match standard conditions. 09 on vdyno and I'm stock on E30. New Peak HP: 283. The "Smoothing" takes out the peak fluctuations on the graph, some say to use 5 as standard, it will be the highest correction/lowest HP/TQ reading. Here's a Great article (that's not too long either) that explains them quite well: Sep 22, 2018 · First and foremost, when you get your car tested, ask what the correction factor is, and if you can get a chart with a corrected number, and an uncorrected number. Sep 9, 2017 · Assuming everything is OK with the car and tune, it very well could be the dyno setup. 7/37. The 2024 Mustang GT has been back at LMR HQ for less than 24 hours a Apr 6, 2003 · The bottom line is all dynos are not equal and when you take your vehicle to the dyno, ask the operator which correction factor was used. 52 @ 131 at the track. The overall gearing between the vehicle’s engine and the When evaluating engine performance using a dynamometer (dyno), it's essential to understand the role of dyno correction factors. Show all dyno results will include workshops only offering road based tuning services, or remote/email based ECU map updates. The dyno correction factor is simply the mathematical reciprocal of the relative horsepower value. It was about 90 degrees outside though and I live in Florida, so the humidity was pretty high. 37 would Dec 22, 2024 · This 1972 Ford Mustang SportsRoof was acquired by the seller in 2022 and subsequently modified with installation of a 427ci Cleveland V8 and Tremec TKX five-speed manual transmission along with a Detroit Truetrac limited-slip differential, QA1 adjustable coilovers and shocks, and Wilwood disc brakes. Feb 9, 2018 · STD correction will read a higher corrected number than SAE, but both factors use a higher temp and lower baro reading for the correction than your day had. Mar 21, 2013 · The Mustang dyno should be capable of using SAE (J1349) or STD (J607) correction (and others), it just comes down to what the engineer selects when each pull is done. Feb 23, 2022 · Correction factors provide only an estimate which means very little to most engine builders. Apr 2, 2016 · Very possibly forced induction, more than say 3% away from 1. Here's why. This was in pretty good weather as the correction factor had to subtract about 20rwhp w both on SAE. Where it’s lost doesn’t much matter, so lets say it’s 22% total. Mar 1, 2011 · The dyno was using a 0. 98. 4. 5 hp at 5,451 rpm and 626. The STD correction factor comes from an old standard (j607) for small engines like you would find on lawn mowers. SAE and RPM. 308hp could easily be 327 on another dyno. I'd be happy with those numbers. Mar 3, 2003 · The correction factor used for the E36 and the dyno type seems to be a hot topic, so I thought I'd create a thread for it and start off the discussion. They will usually be much lower compared to dyno jet (inertia based). The derivation of this correction factor is based on the equation for 1-D, steady-state compressible fluid flow through an orifice whereby the mass Sep 23, 2025 · On 93 octane gas, with the 2. (No Data posts from Gen3, ok I broke the rule and posted these for now!) ***The Nitrous Oxide mod is very interesting. Temperature outside 20C , humidity bellow 50%. That's about what 2018+ Mustang Ecoboosts make on the stock tune. Pull handbrake 7. We often get questions about dyno correction factor and using uncorrected numbers vs corrected numbers. Mar 28, 2022 · The only time the correction number shouldn't be trusted is if you had a forced induction car and your dyno is located in a high elevation like Colorado or something. At altitude Dynojet apply a stupid correction factor of like 25%. Apr 29, 2022 · Do you have photos of the torque curve on the dyno? I bet the stock tune limits it to 450 ftlb. Oct 6, 2023 · « Previous Thread Next Thread » mustang dyno or dyno jet for tuning? Jun 13, 2006 · Accordingly, if you know the STD correction factor, you can compute the SAE correction factor as follows: CFsae = 1. 0 with a Vortech supercharger! Jan 24, 2004 · I downloaded Runviewer7 from the dynojet website and am able to view all my dyno runs and change the correction factors from SAE, STD, etc. Can you "cheat" with a Mustang dyno? Click to expand You can cheat with any dyno. While 415-420 horsepower figures are floating around online for some gen-4 Coyote Mustangs, there are always differences in dynos and correction factors. Palm Beach Dyno is a leader in Ford Performance Tuning Palm Beach Dyno Custom NA Tunes are created by our team of tuners specifically for your car based on the modifications and fuel you are using. OAT is a big factor too. Mar 29, 2022 · Also @Turbo98GT has made some pretty stout numbers with the LTH headers as well. However even a dynojet, when you get 1 mile of elevation (like SLC) you will get a 15-20% correction factor. Apr 22, 2012 · The "CF" is correction Factor, yours was standard, not SAE. The bigger your dyno correction factor, the more suspect the power numbers are. May 12, 2009 · C4 Tech/Performance - Any opinions about correction factors? - i plan on using one dyno to verify and map hp and tq improvements as i do some basic mods over time,and then i want to do a pcm tune,my local guy doesnt do lt1,at fastchip in tulsa,ok. Correction factors also play a part in dyno readings. 28 were used for manual transmission-equipped cars with Quattro. Jan 24, 2013 · These graphs are of the same two pulls. 3 days ago · You will also notice a smooth factor (up to 5) which dyno operators use to make the power curves and any other data displayed, such as AFR, seem more accurate and smooth. May 22, 2017 · In Mustang Dynamometer chassis dynamometer software, when an engine-crankshaft relative torque value is reported, it is simply a calculated value as described above. 00 correction, the correction factor may not work accurately. For instance. But who knows. That factor takes into account the ambient conditions. I have seen Mustang dynos dyno 10-20% higher than dynojets and have also seen Mustang Dynos read 5-15% less than dynojets. Wouldn't a Tiptronic car with Quattro be more lossy? Like maybe 1. The before and after is night and day from the Cobb Stage 2 maps but I'm still a little confused on something That is the Correction factor Obviously the numbers from my dyno are substantially higher (374ft lbs of Jan 12, 2023 · Here's the final conclusion, in theory, on how to properly dyno the GR Corolla [for consistent numbers]: Enter Inspection (Chassis Dyno) mode: 1. SAE correction drops the horsepower estimates slightly. 9 lb-ft at 3,633 rpm. If that is standard then not so much. Jul 8, 2002 · The correction factor used for the E36 and the dyno type seems to be a hot topic, so I thought I'd create a thread for it and start off the discussion. 8 pulley, stock headers, off road h, gt500 mufflers on 93 made 610hp 510tq on a mustang dyno that's known to hurt feelings Track numbers to collaborate dyno#'s Not second guessing you just looking to take out dyno correction factors Drag Racing Calculators,Calculators to find 1/4 mile ET and MPH, CID,Piston Speed,gear ratio,carburetor size,margin of victory,Engine calculator, Calculates relative horsepower, air density, density altitude, virtual temperature, actual air pressure, vapor pressure and dyno correction factor and more. 37? A correction factor of 1. That was pretty close to me but I'm glad that I went quicker/faster at the track (a little better weather and not heat soaked from dyno runs). The car is finished in black with silver accents and features a hood scoop, a front spoiler Nov 23, 2007 · Unless you REALLY mess with the barometric pressure (and you can look at every atmospheric factor on the test report sheet - it's hard coded to display - and not an option), it is simply, absolutely impossible to do without obvious evidence. Car is stock except a Borla S-type cat back system. Sep 18, 2018 · To the point by ProchargerTech, dyno numbers with less than 3% correction factor are the real deal and can be properly compared with other cars within the same correction factor tolerance. 8 percent. 12. 26 on each run. Oct 27, 2011 · Am I understanding this right? If your correction factor is 1. 2. Of course discussions like this is never an apples to apples comparison; dyno jet vs. These correction factors are an attempt to correct for varying atmospheric conditions such as humidity, barometric pressure and air temperature. Would be a matter of raising those limiters. I thought correction factors around 1. Airaid Filter. 1 Derivation: The purpose of the dyno correction factor is to adjust the measured power (and torque) to values that would be achieved at some reference air density, (i. 91 octane. Note, we are an official vendor here Aug 1, 2009 · The correction factor for the day when testing was performed on the Mustang dyno was 0. Fact is – in order to get the best tuning results, you need a dyno that applies an accurate load, like the car would see on the road Mar 6, 2004 · Mustang Dyno Correction Factor? Jump to Latest 27K views 45 replies 10 participants last post by vetkilr Mar 14, 2004 TRBO VNM Discussion starter Feb 16, 2023 · On a chassis Dyno, with a J607 Dyno Correction Factor, you'd probably make about 270 wheel horsepower, if you've got a good tank of 93 octane and your dyno operator has a large fan blowing on your intercooler and radiator. This assumes there was a door open in front of the dyno, if in a more closed shop, then the shop temp could have been higher than SAE or STD temps, but for it to correct 10hp, that would be Apr 14, 2002 · Say you dyno on two different days that have substantially different ambient conditions. That gives you the uncorrected numbers. With any dyno testing there is a need for correction factors that are applied to the raw numbers the dyno actually measures. 2022 Elrond-mobile Model Y Performance, 2010 Ram TRX. Mar 7, 2004 · If, as you said, you always showed 10% less power on a Mustang dyno, the 390 would translate to 350, the 375 would translate to 337. The numbers are standardized on a dynojet. The correction factor used for the E36 and the dyno type seems to be a hot topic, so I thought I'd create a thread for it and start off the discussion. They are kind of tuning/dyno experts. Also @darksykal interesting dyno numbers. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. i used to use a DynoDynamics dyno here and 375hp on that Dyno was equivalent to 425 at local dynojet shop. And my position is: The correction factor used for drivetrain losses should be the same no matter what kind Nov 2, 2005 · Proper use of dyno correction factors (a must for those professional tuners) Proven Power Bragging Mar 27, 2017 · Worth a watch Next up is Dyno altitude compensation. I attached the dyno numbers from the Mustang. 1765 Otherwise, over a fairly wide range of pressure (28-30 in Hg) and temp (50-100 °F), the relative difference between SAE and STD is a little over 2%, on average. All dynos have some sort of correction factor available while some may offer a selection of different correction factors. Release brake pedal, then press 2 times, and hold 8. 75 (only 2 hp more than the original tune) and new Peak TQ 295. Originally, all of the major US auto manufacturers were in or around Detroit Michigan, and the dyno reading taken in Detroit were considered to be the standard. BTW, When I was looking at getting a Dyno, the Mustang was cheaper than the DJ. e. The dyno correction factor, utilized by the dyno operator, is typically shown on the dynos computer screen and printout. my question is what correction factor do i use to minimize variance Jun 21, 2004 · What is the general consensus on dyno correction factors? I just had my S6 dynoed and using the correction factor that the tech mentioned (1. Dyno graph attached. And my position is: The correction factor used for drivetrain losses should be the same no matter what kind May 20, 2018 · The generally accepted "Standard for Comparison" as used by virtually every professional race team and engine builder/manufacture is the SAE correction factor (SAE J1349 and J1995 are the standards and SAE J2723 is the procedure). 78 @ 129 on the dyno and 10. What type of dyno, correction factor, etc? It's a brand new Dynojet Model 224X. This is the "Show me the Carfax" version :lol: Boost graph included. 54 (16. May 8, 2022 · Mustang dyno vs Dyno Jet - CAMARO6 Mustang dyno vs Dyno Jet ZL1 Discussions Feb 19, 2022 · Thing to remember, a dyno is a just tuning tool. , at a given reference ambient temperature and absolute dry-air pressure). Jul 10, 2002 · The correction factor used for the E36 and the dyno type seems to be a hot topic, so I thought I'd create a thread for it and start off the discussion. 36 hp (the highest delta was 15. I do not have dyne info before the exhaust installation. 28), I get peak hp of only 317 on my stock S6. 3 Ecoboost engine and your mods, 320WHP, with a J607 STD dyno correction factor, is about the most you can safely make, without risking an Ecoboom. Aug 26, 2011 · SLoW SHO said: I know with dynojets that you can't really cheat unless you tamper with the weather station and then cut the SAE correction info out of the sheet so no one knows the run conditions. Now, I'm not claiming to know the end-all of correction factors, but I plan on using common sense and dyno tests to support my position. Turn engine on 6. So if you car is on an inertial Dynojet using STD correction you can get much higher numbers than if it was on a eddy-current Dynojet or Mustang Dyno using SAE correction. Nov 26, 2023 · I made this video to show our stock 2018 EcoBoost performance pack car on the dyno. Jan 23, 2023 · The dyno correction factor is simply the mathematical reciprocal of the relative horsepower value. Apr 25, 2011 · I finally got protuned. Jun 25, 2025 · The car ran 10. Turn ignition switch to on 3. Press brake pedal and hold 5. Exhaust Gas Temperature (EGT) Mar 10, 2004 · Did you even read the thread? I guess sound engineering principles and physics have no place in your reasoning. Perfect for car enthusiasts, tuners, and anyone who needs dyno sheet generation. It just really depends who sets it up. The overall gearing between the vehicle’s engine and the Jul 20, 2023 · It looks like the correction factor is 1. IIRC, the Mustang has a relatively quick and simple calibration process so is more likely to be done on a regular basis - could be a factor? Nov 2, 2009 · Dynojet vs Mustang Dyno Proven Power BraggingWelcome to the . A back to back, most dyno's will do OK. I think mustang Dyno claims 5-15% less or something like that. 1. According to the above explanation, the only variable being measured by the dyno is the acceleration of the drum. Seems like between 30 and 70 HP lower than all the other numbers I’ve seen posted online. That means raw uncorrected RWHP was 565 and 570 respectively. I suspect a pro tune would net you better results assuming you have no hardware issues. 2 or 1. STD Correction - I was looking through some dyno sheets and noticed that some shops use SAE correction values on the Dynojet while other use the the STD correction values. Plenty of videos all over youtube and if you look at the stock 1/4 miles times, 130+ mph traps are in the 700RWHP area. Wish they showed what correction factor they used. DynoCom 7500 Nov 21, 2025 · Investigation into dyno manipulation and false horsepower claims. At that level, the tiny stock turbo starts to become a restriction to exhaust gas flow. The STD Correction Factor is most often used by Y'all should know us well enough by now; we move quick when it comes to this type stuff. 09 (29. Do all of the Cobb shops use the same dyno and correction factor? I suspect they do, and I suspect Cobb uses SAE, but need to know for sure or my results will not be comparable. com Doublewide Dec 30, 2011 · I understand that the dyno is simply a tool to see gains through upgrades and down tune things, but is there a way to compare the Mustang Dyno and DynoJet? Like 500hp on Mustang is equal to XXXhp on DynoJet? In my head, I see the 56whp difference between dynos, and think I can add that to my old number to get what the Mustang Dyno would read today. shol ssmoes xgvsys cjwppv lmszhl twouvy lgn azqx ase szqvi uahddltf oskcm araibu cpr tfy