💬 Dyno Tuning Basics | TECHNICALLY SPEAKING

#tuning #dyno #haltech #haltechTECH
In this episode of Technically Speaking we lift the veil on the black magic of Dyno Tuning. We look at the three main types of dynos, their benefits/drawbacks and explain what goes on after your tuner puts your car on the dyno. Plenty of useful technical info coming your way - so pull up a chair, grab a cup of coffee, sit back and enjoy!
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[@haltech]

Welcome back! In this episode of Technically Speaking we lift the veil on the black magic of Dyno Tuning. We look at the three main types of dynos, their benefits/drawbacks and explain what goes on after your tuner puts your car on the dyno. Plenty of useful technical info coming your way - so pull up a chair, grab a cup of coffee, sit back and enjoy!

[@princesssolace4337]

Need help in taking my car's ECU up to date..It is still stock b'coz of where l resides and the tuners around here are shite.

[@wannabecarguy]

It pronounced " chassis" fyi

[@wannabecarguy]

@@princesssolace4337 that pretty much everywhere.

[@princesssolace4337]

@@wannabecarguy 😔😥

[@mindthecap]

Thanks for such thorough video about tuning! I think the same principles apply to tuning factory cars as well? Because emissions is a big part of tuning engines in factory cars, how tuning a factory ECU will affect emissions? I know that there is some headroom for power and efficiency in many of the factory engines but am i making my car illegal by tuning it?

[@craighayes1466]

Bro u couldn’t have made this subject more understandable to someone like myself who has mechanical understanding on lock , but never had the physical access or technical knowledge to fill in all the “I assume because that’s how it makes sense “blanks . I now literally can watch these vids without second guessing my understanding . Thank u

[@lilrice7865]

Where can I get Dyno tuning

[@adamfreiburger7839]

Real hero’s post free tuning informational videos. Thanks for being a hero

[@norkagonzalez3408]

This is just superb, been searching for "basic car performance mods" for a while now, and I think this has helped. Ever heard of - Vabrielbey Vehicle Verifiability - (do a google search ) ? Ive heard some pretty good things about it and my buddy got cool success with it.

[@Perumet]

That is so freaking cool. No one else is talking about things in this level of detail and clarity. Love to learn how it all works!

[@eddys.3485]

Got hooked on haltech videos through mighty car mods. Currently own a haltech ic-7 digital dash and haltech ecu. The excitement is growing by the day to get the car wrapped up

[@CarlosEduardo-wy1fh]

I'm taking my car to the dyno today to remap the ECU, perfect timing for the video.

[@terryramsingh472]

Great video Whats a shazzy dyno again? 😂 Just kidding, great work!

[@jzshifter]

Thank you Scotty and Haltech for this video. I can't tell you how helpful this video was.

[@EndriuGolara247]

This is one of the videos which I am coming back to every few months

[@user-ef3om4jb6s]

exactly ! im in the middle of going through my playlist to "freshen" up my brains

[@MWSRD]

keep tuning until you run out of something.....love it...LOL yes money......pmsl great information scott love the vids and the fact your sharing your years of knowledge and experience of real life tunning with us many thanks from scotland

[@BurnDuration]

Good stuff. One thing to mention is that you'd want to tune your fueling maps to MBT before tuning ignition timing to MBT or knock limit.

[@dedasdude]

I HAVE BEEN WAITING DECADES FOR THIS VIDEO!

[@justspacegoatfarts]

Haltech for the win , and classes on dyno tuning now too !! thanks teach !!!

[@WhipsawWillys]

Welp. I guess I need a dyno now. I've been street tuning my rb25 on a base map, and man, it's so difficult to get that last ~5% accuracy on the TPS Fuel table. If I could lock my wheel speed and work through every cell in the VE tables one by one, i'd have been done months ago! Thanks for the great content, guys, keep it up!

[@michaellecompte1889]

Dylan Wiebe Whats the advantage of using s TPS x RPM table vs a MAP x RPM table? Mine came with MAP x RPM. The values in the cells are VE%. I also have a target AFR table. When you tune a cell for drive ability (various loads vs rpm) what are you trying to accomplish?

[@WhipsawWillys]

@@michaellecompte1889 as a note, all I know is aem so take this with a grain of salt on a haltech as it may be similar but not identical. But, as I understand it, you can do map vs rpm or tps vs rpm as your primary fuel table, it's all just personal preference. One will be a 2d table and the other, the primary one, will be a 3d table. So on mine I have a 32x32 table that's tps and rpm, I then tune my load (map) fuel in a 2d table 1x32. So I set this 2d table up as a linear line. So that at -14.7 psig it pulls 100% fuel out, and at +14.7 psig it adds 100% fuel. This then is a linear line that adds 200% fuel at +29.6 psig and so on. Then i get the base fueling correct and drive around out of boost, tune the accel fuel, drivability areas of the fuel map and get a base ignition map set up. Then I put my engine at its lowest boost setting, something safe like 5psig, and slowly work through my wife open throttle tune. Do a pull from 1k rpm to 2k, pull the data, make adjustments till it's good. Then move to 1k to 3k and repeat. Once I finally get to redline and it looks good, I can turn up the boost and adjust my entire wide open throttle range based on boost pressure. Usually that one to one map of every atmosphere add a 100% fuel is good, but I'll add a little extra as I like to run a little richer at higher boost levels. Really, you just need to make sure you're tuning for the volumetric efficiency of your engine at each rpm and load. If you do 3d tuning on load, you just need to make sure that as the boost raises you're adding fuel appropriately. You'll then just need to set up your trims in 2d for accel fuel and tps.

[@yaseengaffoor]

I used to think that it only measures the current engine, I didn’t think you could fine tune every detail that way. Thank you for the video

[@pininprestatyn]

Very informative! God bless you, Tuning Fork from a MCM fan!

[@hdbhehddbz]

Great video as usual. Well done for producing a technical video about tuning that doesnt start with 'Hey guys whats up!'. The info in your technical library is very confidence inspiring and is quickly convinving me to go with a Haltech ECU.

[@g_wizard9866]

Absolutely LOVED IT! Thanks Tuning Fork! I have been eagerly awaiting this. Hope you guys have some more ideas, really enjoying the content. Thanks!

[@tedbear631]

Very cool. I always wanted to know what's going on behind the scenes at the tuning shop when I see cars get tuned online. Awesome job as always guys

[@755hp]

I was able to make 380whp on my own calibration when tuning my 2JZGTE engine swapped into my 1988 Toyota Supra Turbo. I love EFI tuning; next I want to learn Pedal Mapping and E-Throttle body control via ECU.

[@steadyfab]

Mine made 370whp with no tune but a fuel cut defender.

[@enigmaPL]

Stay away from E-throttle....... worst crap known to man. All vehicle inputs should be mechanical/physically connected. Steer-by-wire, brake-by-wire, throttle-by-wire are stupid and don't serve any legitimate purpose other than being a cost cut measure for manufacturers with the ability to disrupt function at any time by anyone, including police. A physical and hydraulic steering rack, physically connected brake pedal to the booster and brake system, and cable operated throttle physically and directly connected to throttle pedal, are THE BEST choices for any enthusiast and driver, for feel of the car and full control of how the vehicle behaves without electronic buffering. Giving you the ability to apply 100% throttle, and get 100% throttle without a computer limiting that to what it thinks is 'safer'. Steering as much as YOU want without computer buffering deciding what it thinks is 'safer'. Braking as much as you want without the computer buffering your input to what it thinks is 'safer'. You get the idea.

[@755hp]

enigmaPL All of what your saying is true....for the Driver. But if you’re a Calibrator working in an OEM automotive company, you NEED to gain control of these components to better dial vehicle propulsion in for emissions, torque control, limp modes, safety, etc. Cable Throttle Bodies result in little to no control of air entering the engine from an ECU standpoint; as the calibrations and software will simply respond to the air coming into the engine (held hostage via pedal tip in from driver). But say in the case of traction control (with an e-throttle), now the ECU can reduce torque via air, spark retard and fuel cut....not just spark retard and fuel cut (more violent response). Also, steering angle sensors allow for calibrations based on vehicle speed vs steering angle thresholds. If steering angle and vehicle speed exceed calibrated thresholds, torque can be reduced to cut wheel slip or loss of control. The real key in satisfying both sides (driver vs calibrator) is to allow this aids to be turned on/off....at requested command of the driver.

[@DCuniversalable]

@@enigmaPL yeah, try to look on HP academy vids about racecars and the interwievs with they owners/tuners. Almost all top tuners (in racing segment) use e-throttle, back in time e-throttle was slow and have lag, in these days e-throttle have same speed as "mechanical" and allows u to do some good tricks via ECU. Try to search for info before u say shits. :)

[@enigmaPL]

@@DCuniversalable "Almost all top tuners (in racing segment) use e-throttle" is a bullshit statement. You couldn't possibly know what 'all tuners' use. You watched some video and you think you know it all. I work on cars myself and know how both work. I don't need to 'research'. Mechanical throttle is the better option because it gives you direct control of what the throttle plate is doing without software buffering getting in the way. You still have a sensor that tells you how much the throttle plate is open in % if you wanted that for tuning, but there is no computer buffering between your foot movement and the electric motor opening and closing the throttle plate. The throttle pedal is directly connected to the throttle mechanism using a cable. As you push the throttle, the cable gets tugged and directly opens the throttle plate accordingly. A throttle position sensor is used to tell the ECU how much % it's open. With electric throttle, as you press the throttle pedal, you aren't connected to the throttle itself, you are sending digital signal input to the ECU, then based on the limited variables it has coded into the software, the ECU then actuates the electric motor which then controls the throttle plate. I love tech, I love home computers and how far we've come, but there are things that simply aren't made better by throwing computers at it. It isn't about 'speed' either, it's about direct control. You move your foot 15% you get 15% throttle. You put your foot down and you get WOT, without any software buffering. I've driven plenty of e-throttle cars, and in ALL cases if I put my foot to the floor, I never get WOT until the computer decides it's ok, if ever, and you can feel it. That alone is enough for me to consider it dangerous. Software doesn't know what your situation is, maybe you need WOT to avoid a collision, but in a modern car, you won't get it. In fact, in the event of evasive maneuvers, the software will limit your inputs automatically based on what it's been coded to do, even if you know better about what to do to avoid a collision. Same goes with electric steering and electric brake actuation. You will not get the same direct response that you get from mechanical equivalents.

[@viktordaz-haagen7834]

Cheers Scott. Everything I ever wanted to know about dyno tuning (but was afraid to ask). Please keep them coming!

[@princesssolace4337]

....untill you ran out of luck?😁😁Kaboooom goes the block😅

[@Blazesolocrew]

Not if you know how to properly tune and done listen to stubborn costumers telling you the car can still hold it. Plus you monitor the knock sensor so you don't get the engine to go kaboom

[@laszlovona]

connecting rod in my case...ehheh... but this is my car..

[@gairnmclennan5876]

Great demonstration. Thanks. I'll watch your other vids. I got a 24 year old TVR Chimaera. It's been on a Haltech Dyno this week. Shows about 150ft/lb more than expected. Hp is as new. Any chance Haltech chassis Dyno can be significantly out of calibration? I imagine there is normally an annual calibration check.

[@justindennison5044]

Got my evo 9 back from tuning with a haltech 1500 and made serious power

[@haltech]

Nice:)

[@yenyen33089]

thanks for this useful video. every tuner ive encountered seems to not explain how to tune a car. like its some kind of secret, i have mechanical understanding and work on my car. but because i dont have a dyno machine i cannot make changes and make power. i have ecmlink for dsm, been reading the wiki pages. i can however make pulls and make changes on the log. i wish you showed how you made power on your video. but this helped alot..

[@ezaquatics8991]

Awesome video, thorough explanation and great demonstration along with it!

[@mortenjohnsen7928]

This was so cool to watch!

[@BigRevNev]

Thanks Scott, great informtive video.

[@mechanicalmisadventures]

Awesome to watch, cheers lads! Always an educational experience👌

[@Fi1del]

great stuff! ive been interested in learning how this works , so thank you! What software do you run ? and im assuming you have to pay for it ? and this basically all works just through the OBD II port? i dont need sleep in need answers LOL

[@haltech]

The tuning software is Haltech's ESP as the car's using a Haltech ECU.

[@antoniocapilupi1225]

Trying to find the best dyno for our highschool. Something for everyday cars but that can handle some higher HP ones as well!

[@edayala9171]

Just subbed man is a tunning encyclopedia

[@devjyarn]

What a brilliantly simple explanation. Well done.

[@motoray69]

You should do a collaboration with high performance academy. Love the content.

[@haltech]

Already done one not so long ago: kzbin.info/www/bejne/rZmcm4CpZZhmiK8

[@robzildjian]

Thanks, Tuning Fork. Now hit that PAGE UP button!

[@Cava23]

Great video and good length to super informative. Should do a vid on the plug and play ECU for the barra and then add a rotary switch and last out and how us what is so good about the rotary swith

[@haltech]

Barra Plug'n'Play fitting and setup: kzbin.info/www/bejne/eamulYJmpZuKd6s

[@Cava23]

@@haltech cheers y'all. Was more of a suggestion specifically for the 12 pos switch and the cool things you can do with it!!

[@ilsando3550]

Brilliant. Please continue doing regular tech talks, very interesting

[@yellowbendyman8275]

Amayzin. More of these please guys! Love the tech and numbers!

[@EJ2BSeries]

I want haltech but im hondata user....u should show more of using haltech software..its very interesting!!!

[@danmcgee4734]

Bloody great video! always wondered how a dyno worked. Every car nut should watch this. Thanks heaps for the rundown.

[@DKA5657]

Thank you for the in depth clarity regarding dyno tuning. Most videos have a greasy guy, pointing his finger briefly at a graph, and exclaiming "Look at That !"

[@CarHound]

Love ❤️ this video. Very informative!

[@hobbitronic]

I'd love to hear the haltech opinion on the wheel mounted smartphone dynos. Obviously they're not going to give professional results, but for hobby DIY enthusiasts they seem like a great tool

[@idriwzrd]

Tuning fork's name is Scott?! Excellent episode. We like the technical ones. We wouldn't mind more like this.

[@haltech]

Subsrcibe to the channel then. We've got plenty more!

[@idriwzrd]

@@haltech How do you know I'm not already?

[@haltech]

It's a guess based on the fact you didn't know Tuning Fork's name is Scott:) But hey, you're here so check out the "Technically Speaking" and "Tech Tuesday" playlists. Both full of tech videos:)

[@dayno82]

Awesome. Thanks guys👍

[@littlewol2620]

awesome video tuning fork!

[@boulevardsound5137]

Mate. you're a trooper. That was great. Thanks heaps.

[@chrisNNN]

Thanks for this, very informative!

[@ubonrat8653]

Great video

[@aref6561]

thank you so so so so much

[@BigDaddyDon274]

can you make a video on road tuning please?

[@Chappy1994]

Great video should make a series of dyno tuning videos

[@onelastcast6829]

Would love you to go more in depth with ignition timing? ✌🏽

[@4dirt2racer0]

i think, even if i lived in an area that used kw instead of hp, id probably still use hp i like the way horsepower sounds :p

[@chrisjohn5875]

Very interesting video. This might be a stupid question, would you take the car through all load sites to optimize each section? In between each site does the software estimate a transition between settings?

[@biofaireland1486]

Really nice video, I have had a stroker kit, stage 5 cames and a few other bits done to my Honda civic B16a engine. What type of tune is required for this and what dyno time would be needed, thanks in advance and not sure if this is a straight answer but would really appreciate the information. David

[@sabz_bhp]

How do you go about finding out which gear is 1 to 1

[@haltech]

You'll need to find a spec sheet for your specific transmission that lists the gear ratios. Pick the one that is 1:1 ;)

[@astonmarjo]

Thanks 👍👍👍

[@acedrifts]

Please make tuning without a dyno video please, I'll be buying a platinum pro plug in for my 350z soon and I'll be doing road tuning myself for the purpose of learning more about tuning, then once I've had my fun and if the engine isnt blown up I'll go get it dyno tuned

[@TheTobes99]

Hahahaha there's no way they're gonna do a video on road tuning.

[@rnbricky]

You're basically asking them to make a video that goes against what they're about lol

[@dropinbiking92]

Even the best dyno tune should be double checked on the street or track. Weather, temps, and load can change a bit between a dyno session and track day. Road tuning is good for cleaning up a tune or making tiny corrections, but can be a pain in the ass for doing something from scratch. Best to just have somebody dedicated to driving, someone dedicated to the laptop, and be on a good flat stretch of road that you're familiar with. It will be a lot of random driving, pulling over, more random driving, more pulling over. It can take a long time to dial in a good tune on the road. Not to mention doing third and fourth gear pulls to redline can be hard to even do in most areas safely.

[@wannabecarguy]

Just keep it rich until you get on the Dyno.

[@nightkids7163]

Have tuned most of my cars on the street myself with pretty well no training, its the same principle - except you use your brakes as the load source... its a fine balancing act. I'd recommend a highway or some open, scarcely populated roads as it's pretty dangerous on your own. Get a friend to drive, its far simpler if you only have to adjust the tune, otherwise you'll spend a whole heap of time pulling over and changing things.

[@meisammozafari2012]

Thanks for info mate.

[@Mr6Sinner]

Do you have or can you make a similar video for road tuning for those of us that don’t have access to a dyno?

[@iampyron22]

Same thing but have to log and do pulls instead of having the luxury of being able to hold constant rpms as many times as you would like. Last time i did mine we were doing highway pulls

[@AboutTheBuild]

Take it to someone with a dyno?

[@Mr6Sinner]

About The Build The closest dyno to me is nearly 300 mi away

[@iampyron22]

@@Mr6Sinner where the hell do you live ive got about 1000 within 100kms

[@AboutTheBuild]

@@Mr6Sinner Better to tow it 300miles than have your motor blow up

[@818BigA]

I want to learn tuning and have a shop one day filled with badass cars

[@frankt7769]

Great video im wanting to get a full exhaust system on my ve ss im chasing a nice note so power really is not what im after,when a tuner does all this in anyway can it do worse for my engine changing the factory tune or is it better

[@PTRPerformance]

👍

[@mikaelgaiason688]

I only ever work on bikes. But with all the newer cars being fly by wire I've wondered if anybody has made a program to automate steady state tuning. Something that would input it's own accelerator input to sit at 10%, 20%, etc and run through the different rpm cells automatically and adjust itself as needed.

[@maxtorque2277]

All OE engines are automapped these days, using DOE (Design of Experiment) techniques to allow simultaneous optimisation in as many as 8 Degrees of Freedom at once! This is because modern engines, have far more variables to optimise (fuel mass, ignition angle, cam timing, injection angle, EGR, boost pressure, Throttle progression, torque estimation, fuel pressure, coolant temperature, coolant flow rate, cam lift, oil pump flow etc etc) A higher level test sequencer drives the engine to the demanded setpoint, and varriables are modified in real time, logged, and " mathematical surfaces" for all the interdependent effects of each parameter. In the aftermarket world, things are far simpler, and still pretty much rely on a human pressing UP and DOWN keys on one parameter at a time....

[@mikaelgaiason688]

@@maxtorque2277 What. The. Fuck. Yeah. I work for an OE manufacturer. I know how they build the base maps at the factory. I also know the way a standard Power Commander works vs a gen 3. I know how a factory flash off a USB works. What I don't know is the purpose of your post.

[@zakuraayame5091]

@@mikaelgaiason688 you sound like you need a snickers, calm down, relax, and give yourself a handy. No need to be so aggressive just because your wife left you for being a temperamental child.

[@mikaelgaiason688]

@@zakuraayame5091 Yeah, not sure where you got that from, but nice try. :) I don't need a snickers, I need rational humans that can form a real sentence. Back in your cave troll.

[@zakuraayame5091]

@@mikaelgaiason688 you raged at them and they formed sentences; you just angry. You may have asked if a tuner can use drive by wire to control throttle on a dyno without using pedal pressure like in the video; but that person was telling you that newer engines in cars, since you said you are a motorized bicycle enthusiast, monitor, control, test, and adjust based on a ton of variable. In fact, they have been doing that for over 20 years; monitoring fuel grades, ethanol content, knock, boost, etc and adjusting timing and a/f ratios to maximize performance or protect the engine. But you just threw a hissy fit like a wittle babby. wtf indeed ROFL

[@dcsymbols4450]

Shazzy 🤔.. chassis🤗

[@ToolsOutsideTheBox]

WOW! I even learned a couple of new Aussie words! Shazzy and retada 😲

[@kennethporst4359]

Yeah but you do increase speed when you give more throttle going up a hill, and you do get more rpm...so now I'd have to data log those driving conditions and tune those squares as well

[@xxTyphoid]

Awesome video! Just curious if the dyno used in the video is a dynojet style or mustang style dynamometer?

[@Nebbia_affaraccimiei]

bit of a generic definition, but having small rollers and a retarder I'd call it a mustang style. mustang has both rollers linked and knurled if that makes any difference :)

[@Michael45P]

chazzie dyno :) Cool video :)

[@fksickk3378]

Legend !

[@rendrahutabarat914]

Mine is elite 1500👍

[@hanumantharajba9425]

I want explanation about chasis fyno for two wheelers how its working?

[@Jays22b]

nice vid

[@launchproperty695]

Hi, May i know which tuning software/ program are use?

[@saghirhussain4429]

can you make video of economy remap?

[@meisammozafari2012]

Can y make a video making barra awd. Thats something i always wanted to watch

[@MJTAUTOMOTIVE]

The Ford Territory SUV came in either rear wheel drive or all wheel drive. And also there was a FPV F6x version with a turbo Barra engine a 6 speed automatic. The Territory was based on the Falcon platform. I have always wanted to build a awd turbo Barra BA Falcon.

[@meisammozafari2012]

@@MJTAUTOMOTIVE i know territory is awd. But i have less of the actual xr6 awd. Territory is suv not sedan is much heavier and hight is next factor which many people dont like territory. I personally want xr6 not suv

[@masc2279]

Make a street tune TECHNICALLY SPEAKING Episode !!!!

[@dominicshootspeople4352]

What happens if you run a 3rd gear pull, if the dyno is set on 4th gear? Will the results be incorrect?

[@markokovac7087]

I don't understand what are you changing when you're stady state tuning the car ?

[@turbotysen]

“There are a few main types of dynomometers, an engine dyno, a hub dyno, and a SSSHHHHAZZZYYYY DYNO “

[@haltech]

kzbin.info/www/bejne/m53cp6OKgqqbfKM

[@johndee68]

When referring to "tuning" a car these days, does more power reflect better fuel economy as well? In the old carby car days, best fuel air mixture made best ecconomy and power, is it the same these days then?

[@blumie006]

More power always equals more air and more air equals more fuel The size of your fuel pump and injectors will always dictate the power output u can get no matter how big your turbo is or how good any other performance upgrade is

[@johndee68]

@@blumie006 But does today's injection systems make better economy (mpg) if the car has more power? i personally think it should. Based on non turbo engines of course. As they will ram more fuel air in to the cylinders, making more fuel use for the same revolution of the motor. Or am I wrong on that theory of logic?

[@daesyoung]

elevation? is that also in applied atmospheric condition other than humidty?

[@RaidersRawesom15]

So could I do this on a truck?

[@felix941010]

That's SHAZZZYYY bruuhh🥴🥴🤙🤙

[@SkyMine911]

Does dyno tuning able to tune any car? I understand that i have to reflash my tune, but my question is does he has to write a whole new base map?

[@JETURBOF6]

As if you didn’t finish tuning it and show the full capacity of the before and after, custom tune vs factory tune

[@g6et_wrx177]

More G6ET content please :-)

[@clarencegonzales9393]

can you dyno a non ecu car?

[@vikas4383]

How the Dyno hold up at A Constant RPM.?

[@nathanbutler8240]

I have question. You said you plug in the equation and use the rpm x torque +5252 or whatever it was and that gives you horsepower. Say you have a small block and it puts lets say 600hp and 490ftlbs. Then you run a big block and puts down exact same 600 hp but way more torque say 580ftlbs. How does that work with the equation? Is it because they make power at different rpms?

[@Duskconqueror]

Could be. Let's say both blocks make their max of 600 HP at 7000 RPM. That means that at 7000 RPM both make (600*5252)/7000=450 lb-ft of torque. Now let's assume both make peak torque at 4000 RPM. At that engine speed the small block produces (490*4000)/5252=373 HP. The big block however produces (580*4000)/5252=442 HP at the same engine speed, thanks to it's higher torque output. So in this case the small block has a flat torque curve and a steep power line. The big block drops more torque at higher RPM but has a steadier power output across the rev range. BTW, the formula is HP=(lb-ft*RPM)/5252. So at 5252 RPM, HP and lb-ft will be the same. Engineering Explained has a nice vid about this.

[@JimmytheGenius]

the small block would have to run 1000 rpms faster than the big block for the same hp

[@edayala9171]

Tunning fork!

[@rodneymatthews25]

scotty saw this guy on mcm

[@thepartypotatopooper6354]

how do you actually tune fuel for different load? i know that tuning timing is according to torque or using knock sensor but i have no idea what reference to use for fuel

[@zacharymallin5527]

air fuel ratio

[@michaellecompte1889]

Same boat. You say tune the load cell...tune it to what? What value? If you have a target afr map and a base map doesn’t the target afr map make all the corrections anyway? Is the ides to get the computer to do less and less correcting so that the base map is more precise?

[@defenceaye]

Why use ft lbs and not Nm ?

[@haltech]

That's how most dynos are configured. The results are then converted to Newton Meters.

[@DiscoFang]

@@haltech The question is why use ft-lb and not lb-ft?

[@the_batmobile0.4]

Wow

[@samspezza8328]

Patiently awaiting this video to go viral and spark unjustified outrage because Scotty said "retarded."

[@deathfromabove8735]

@ 4:14 I always thought it was done in NM not LB-FT lol probably why when i tryed to do the math with me old xd (250 crossflow stock 310 NM (if I remembered right)) I got that it should have close to 300 HP instead of the 120 HP , argh I hate math

[@andiszile]

Actually formula in just (Torque x Rotational_speed) = Power But the trick here is that raw units for rotational speed is rad/s (radians per second) which is very confusing and not intuitive to use. If you multiply torque in Nm (Newton meters) and Rotational speed in rad/s then you get power in Wats.

[@deathfromabove8735]

If I remember right it was something like 310×5100÷5252=301. The old iron head cross flows didn't like to rev to much tho again, these are just stock numbers I could find online

[@specialk1951]

Shazzi dyno?

[@JOSHWICK93]

How much does a tune/dyno Cost?

[@haltech]

Hey josh, that cost varies per tuner and per shop. Your best bet is to call your chosen tuner/shop and ask!

[@migueljackson7000]

This tells me how a dyno works and what you look at while making hp not how to make hp

[@thanossosa5136]

Yes that’s what this video is.