dyno numbers ????
Thread Starter
Teching In
Joined: Mar 2020
Posts: 43
Likes: 2
dyno numbers ???? dyno numbers ??? hey guys,so watching Richard Holder and motor trend where they have just a engine on a dyno with no belts or ac or anything
how can i look at the final numbers and then know kinda what it would make in real world situations.
so for example if he makes a pull and gets 500 hp and 550 trq what would it be oh i guess in my set up which is
05 blazer with belt,ac,then thru the t56 transmission,thru the driveshaft into the gears and axles then finally to the tires.
google wouldnt cooperate with me on this lol.
reason being all these video's of his he's getting big numbers = im bummed.
i have a L96 with ls3 stage 1 cam,ls3 intake,and headers and yadda yadda and im only getting 400 hp to the tires & 380 trq to the tires.and everyones like that seems low and it doesnt really run too good to me either,im not impressed so if your bored and know this which im sure lots do holler back ok,cool
how can i look at the final numbers and then know kinda what it would make in real world situations.
so for example if he makes a pull and gets 500 hp and 550 trq what would it be oh i guess in my set up which is
05 blazer with belt,ac,then thru the t56 transmission,thru the driveshaft into the gears and axles then finally to the tires.
google wouldnt cooperate with me on this lol.
reason being all these video's of his he's getting big numbers = im bummed.
i have a L96 with ls3 stage 1 cam,ls3 intake,and headers and yadda yadda and im only getting 400 hp to the tires & 380 trq to the tires.and everyones like that seems low and it doesnt really run too good to me either,im not impressed so if your bored and know this which im sure lots do holler back ok,cool
TECH Fanatic
Joined: Jan 2022
Posts: 1,034
Likes: 468
From: Seattle
I mean in every single one of his videos he explains the numbers he gets by saying "we're using a Meziere electric water pump, no airbox, no accessory drive, dyno long tube headers" so it's not as if he's misleading people.
If your car doesn't run well, that has zero to do with parasitic accessory loss or drivetrain loss.
If your car doesn't run well, that has zero to do with parasitic accessory loss or drivetrain loss.
Last edited by theunderlord; Mar 12, 2022 at 01:18 AM.
The way he runs engines are how anybody would on an engine dyno..always going to read higher than on a chassis dyno. The rule of thumb is usually 12%-15% drivetrain loss with a manual and 20% or more with an automatic depending on what converter. But rear end, gear ratio and wheel and tire combo all effects the final number...as well as the weather. Dont worry about numbers..run it at the track and see what your trap speed is. There are online calculators that figure your power output based on vehicle weight and trap speed if you really want to know .
Dyno's are great for base lines and tuning a given car or truck etc. Dyno's engine & chassis aren't so great for comparing to each other due to different measuring criteria, philosophy of design, different test procedures and so on.
so for example if he makes a pull and gets 500 hp and 550 trq what would it be oh i guess in my set up which is: 05 blazer with belt,ac,then thru the t56 transmission,thru the driveshaft into the gears and axles then finally to the tires. google wouldnt cooperate with me on this lol.
~ 380whp to 395whp on a DynoJet
~410wtq to 425wtq DynoJet
Weight of tires and wheels can shift numbers by 5 hp. Disc brakes dragging on the rear can eat 10 hp. Plus other factors. Always a grain of salt wirh dyno numbers.
reason being all these video's of his he's getting big numbers = im bummed.
i have a L96 with ls3 stage 1 cam,ls3 intake,and headers and yadda yadda and im only getting 400 hp to the tires & 380 trq to the tires.and everyones like that seems low and it doesnt really run too good to me either,im not impressed so if your bored and know this which im sure lots do holler back ok,cool
What was it dyno'd on?
Mustang's often read lower than DynoJet's etc
Thread Starter
Teching In
Joined: Mar 2020
Posts: 43
Likes: 2
thanks black bird i was mearly making conversation,i never said anything about richard misleading people i dont know what that guys problem is and i dont really care,it was a simple question on how much horse power would you get in your car compared to what dyno's are showing that arent bolted up to anything to rob power.that was it.forums are a place to learn and ask questions.ive got answers so thank you.i figured it out. have a good one
TECH Senior Member
Joined: Jun 2016
Posts: 22,301
Likes: 3,625
From: Central Cal.
Theunderlord wasn't being rude to you.
He was just explaining how Holdener dynos his engines and why he does it that way.
He is getting a pure, raw number with NO parasitic loss of any kind.
That way any changes to the engine are reflected in the power numbers without anything to deflect them.
He was just explaining how Holdener dynos his engines and why he does it that way.
He is getting a pure, raw number with NO parasitic loss of any kind.
That way any changes to the engine are reflected in the power numbers without anything to deflect them.
dyno numbers ??? hey guys,so watching Richard Holder and motor trend where they have just a engine on a dyno with no belts or ac or anything
how can i look at the final numbers and then know kinda what it would make in real world situations.
so for example if he makes a pull and gets 500 hp and 550 trq what would it be oh i guess in my set up which is
05 blazer with belt,ac,then thru the t56 transmission,thru the driveshaft into the gears and axles then finally to the tires.
google wouldnt cooperate with me on this lol.
reason being all these video's of his he's getting big numbers = im bummed.
i have a L96 with ls3 stage 1 cam,ls3 intake,and headers and yadda yadda and im only getting 400 hp to the tires & 380 trq to the tires.and everyones like that seems low and it doesnt really run too good to me either,im not impressed so if your bored and know this which im sure lots do holler back ok,cool
how can i look at the final numbers and then know kinda what it would make in real world situations.
so for example if he makes a pull and gets 500 hp and 550 trq what would it be oh i guess in my set up which is
05 blazer with belt,ac,then thru the t56 transmission,thru the driveshaft into the gears and axles then finally to the tires.
google wouldnt cooperate with me on this lol.
reason being all these video's of his he's getting big numbers = im bummed.
i have a L96 with ls3 stage 1 cam,ls3 intake,and headers and yadda yadda and im only getting 400 hp to the tires & 380 trq to the tires.and everyones like that seems low and it doesnt really run too good to me either,im not impressed so if your bored and know this which im sure lots do holler back ok,cool
1. Did anybody do any work on your heads?
2. What’s your compression ratio?
3. What are your cam specs? Saying that you have a “LS3 Stage-1 cam” is almost meaningless since EVERY cam maker’s Stage-1, 2, 3, 4, etc cams are different. NOTE: If you don’t know the specs, do you know whose cam it is?
4. Are you running stock exhaust manifolds or headers? If headers, what kind/size? And what's the specs on your exhaust?
5. What gears are you running…..and what diameter are your tires?
6. Real silly question, but.....was your truck tuned for your current setup?
All of these factors can affect your HP to the wheels.
KW
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L96 engines have 9.6:1CR and are rated at 360hp, if you're making 400ish to the tires, that's not bad seeing as you're up around 100hp from stock. I have a spare L96 and my biggest gripe is the compression or lack there of.
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