I have a big question...
Why do the factory horsepower is less than the dyno charts that some people post... and they already put an intake or headers? :doh:

Please rephrase your question.

the factory horsepower is higher that the horsepower that some people's cars with K&N intake or DC Sports headers... i don't know why?

factory is rated at the flywheel. dyno's mesuare your bhp at the wheels, so there is going to be bhp loss due to the transmission and other things driven by the engine (alternator for instance)...

mmmmmmmmmm.... sorry about my ignorance... but can you define... flywheel?

difference to how much your actual engine produces to what is transfered to your wheels.......

so... the engine produce 160 hp... but it trasfer to the wheels less than that?

factory is rated at the flywheel. dyno's mesuare your bhp at the wheels, so there is going to be bhp loss due to the transmission and other things driven by the engine (alternator for instance)...

... also the weight of the wheels plays an important factor on how much torque and power is transfered to the ground. The heavier the wheels the more energy required to overcome their inertia, therefore less power transfered to the ground.

its to early to bring out the big words.... hahaha just kiddin..... but yea so thats basiclly why peepz who like to race get lighter wheels, dont put systems in there car, strip there interior before they go to the track.............. thats why i bought some light ___ wheels......... oh yea...

what about the torque of the tc? it has more torque than hp... this is rare to seen in a car... do i'm right?

what about the torque of the tc? it has more torque than hp... this is rare to seen in a car... do i'm right?


i dont know..... do you right?




:rofl:

if you don't know... why do you post it?

Hey, Leave the poor guy alone. If I knew the answer to your question, id answer it. Perhaps someone with more knowledge than I could step in and help

John

not, its not uncommon to see torque the same or slightly higher than hp. it depends on how the manufacturer wants the engine to perform.

All diesel engine's have mounds of torgue and in some cases less than half the horsepower.

They posted 160 b/c that's what the engine is capable of
producing at the flywheel.

In auctality, the tC only produces mid 130's-140 at the wheels.

the engine produces 160hp 163tq at the flywheel
put it this way, the engine makes that much power. just the engine itself.

now put in the master cylindre, clutch, tranny, axles, drivtrain, wheels, as you can tell that is a lot of metal and lots more stress. so the HP will be less at teh wheels.


TQ being higher or lower or the same as HP is all in the engines design of crank, rod length, piston compression ratio, and cams

the engine produces 160hp 163tq at the flywheel
put it this way, the engine makes that much power. just the engine itself.

:nope: Do a dyno run w/ a stock tC, you wont see 160hp

I've seen tC do dyno runs w/ an intake and they barely clear 130hp

the engine produces 160hp 163tq at the flywheel
put it this way, the engine makes that much power. just the engine itself.

:nope: Do a dyno run w/ a stock tC, you wont see 160hp

I've seen tC do dyno runs w/ an intake and they barely clear 130hp

thats what he said, the engine puts out 160. but at the wheels is making around 140-150 (130 must have been auto)

i actually DYNO'ed my car

140HP 150TQ

So you just ate your own words lol

the engine produces 160hp 163tq at the flywheel

And you dyno'ed your car and it only makes 140HP

hmmmmmm

who was rite?? :lalala:

:yawn: :P :ttth: [/quote]

So you just ate your own words lol

the engine produces 160hp 163tq at the flywheel

And you dyno'ed your car and it only makes 140HP

hmmmmmm

who was rite?? :lalala:

:yawn: :P :ttth: [/quote]


you do know your both saying the exact same thing dont you? But your trying to say he is wrong and you are right?

flywheel HP and wheel HP are different, im just tryin to put some of you in prospective of the factory claimed HP vs measured WHP. thats all

if you read my thread carefully, youll understand wat i said.
looks lik only a few actually read an understood it

i understood it,
i'm just bustin yo balls!

The factory measures the HP at the flywheel (back of the engine where the trans connects to). The horsepower is less at the wheels because of friction and reciprocating mass . The rule of thumb is subtract 15% of the Flywheel power to find the power at the Wheels. A longer piston stroke (how far the piston moves up and down) = more torque, shorter stroke = higher horsepower. These are just rules of thumb and may change depending on certain modifications

its to early to bring out the big words.... hahaha just kiddin..... but yea so thats basiclly why peepz who like to race get lighter wheels, dont put systems in there car, strip there interior before they go to the track.............. thats why i bought some light ___ wheels......... oh yea...

same here and what a difference it makes.

factory is rated at the flywheel. dyno's mesuare your bhp at the wheels, so there is going to be bhp loss due to the transmission and other things driven by the engine (alternator for instance)...

Dynos don't measure your "BHP" at the wheels. BHP stands for "break horsepower" and BHP is measured by a dyno at the engine's output shaft. This is before the weight of a flywheel or the weight of wheels/tires/driveshafts/whatever other centrifical mass is between your EOS and wheels.

Front wheel horsepower (FWHP) would be the measure of horsepower at the front wheels, not BHP.

If someone has a question please make sure you know what the hell you're talking about before you offer any information.

what about the torque of the tc? it has more torque than hp... this is rare to seen in a car... do i'm right?

Go to www.howstuffworks.com and look through the "auto" section. It contains alot of good info about cars in general and in the transmission part it explains the whole flywheel thing you were wanting to know about. Also it has a section for turbo chargers versus Super chargers that contains alot of useful info.

The factory measures the hp and tq of the engine at the engine. When the engine is in the car the only way to know the actual hp then is on a dyno. The dyno measure the wheel hp but for the engine hp to go through the drivetrain (clutch ,flywheel, transmission, cv axles, tires) you lose aprox 15-20% of the engine hp. This is why you see the diffrent numbers but if you want to know what the engine hp and tq are after mods, just dyno the car before any mods are done which in my case it was 138hp and 147 tq. After I installed an intake it was 147hp and 154 tq. Just see what the diffrence is 9hp and 7tq just add to engine hp and tq and thats what you have at the engine. which is 169 hp and 170 tq.

factory is rated at the flywheel. dyno's mesuare your bhp at the wheels, so there is going to be bhp loss due to the transmission and other things driven by the engine (alternator for instance)...

Dynos don't measure your "BHP" at the wheels. BHP stands for "break horsepower" and BHP is measured by a dyno at the engine's output shaft. This is before the weight of a flywheel or the weight of wheels/tires/driveshafts/whatever other centrifical mass is between your EOS and wheels.

Front wheel horsepower (FWHP) would be the measure of horsepower at the front wheels, not BHP.

If someone has a question please make sure you know what the hell you're talking about before you offer any information.

Yes, your BRAKE Horsepower is what is referred to as BHP. This is basically the amount of horsepower it takes to STOP an engine at the flywheel. hence "brake" horsepower... and I think everything else was explained pretty well :)