Horsepower vs Torque F22 vs H22

[Domesticated]

Comparing TQ to HP isn't anything more than numbers... TQ*RPM/5252 = HP. Ever wonder why the TQ and HP curves cross at exactly 5252RPM? It's because of that. The way the units work converting ft-lbfs*RPMs to hp is just 5252. IMO I'm not a huge fan of the way we measure an engines power. I think it should be the integral (area under the curve). If I have an engine that makes peak power at 7k, but only 1/4 peak at 2k and compare it to an engine that makes the same peak at 6k, but makes 3/4 peak by 2k, you have a lot more usable power available through the rev range.

[Shadow1992]

Comparing TQ to HP isn't anything more than numbers... TQ*RPM/5252 = HP. Ever wonder why the TQ and HP curves cross at exactly 5252RPM? It's because of that. The way the units work converting ft-lbfs*RPMs to hp is just 5252. IMO I'm not a huge fan of the way we measure an engines power. I think it should be the integral (area under the curve). If I have an engine that makes peak power at 7k, but only 1/4 peak at 2k and compare it to an engine that makes the same peak at 6k, but makes 3/4 peak by 2k, you have a lot more usable power available through the rev range.

Shhh..the american automakers are gonna get upset if you let out the secret to why all their powerful muscle cars keep getting beaten by tiny engined japanese cars.

[Domesticated]

Shhh..the american automakers are gonna get upset if you let out the secret to why all their powerful muscle cars keep getting beaten by tiny engined japanese cars.

Idk, I think the 6.4 HEMI having 400ft-lbfs from 2.5k to about 6k is a pretty good deal. And making 4300lb cars runs 12's and pull about .9G's out of the box is pretty good.

[TheProfessional]

Idk, I think the 6.4 HEMI having 400ft-lbfs from 2.5k to about 6k is a pretty good deal. And making 4300lb cars runs 12's and pull about .9G's out of the box is pretty good.

I'd have to agree. Alotta out of the box performance with that motor and it responds VERY well to mods.


I still crap on one off the line and down the straight or in turns but....still, this is a sound point.

[Domesticated]

I'd have to agree. Alotta out of the box performance with that motor and it responds VERY well to mods.


I still crap on one off the line and down the straight or in turns but....still, this is a sound point.

And what tiny engine Japanese cars are beating up on these American muscle cars?

[TheProfessional]

And what tiny engine Japanese cars are beating up on these American muscle cars?

Out of the box? Stock? None.


But any of the current cars I own would and have destroyed a SRT-8 out of the box and down the straight, or on a downhill.

At the end of the day as remarkable as those motors are, Power-to-Weight becomes a factor when modding any Honda's i'm sure you could agree.

Wouldn't be hard to put together an H22 or a F22 for that matter that could do the job.

[GhostAccord]

Are you forgetting the GTR, NSX and Supra? I'm sure out of the box these will put up against a 6.4L Hemi... They use Hemispherical combustion chambered engines and half the displacement....

[Domesticated]

Out of the box? Stock? None.


But any of the current cars I own would and have destroyed a SRT-8 out of the box and down the straight, or on a downhill.

At the end of the day as remarkable as those motors are, Power-to-Weight becomes a factor when modding any Honda's i'm sure you could agree.

Wouldn't be hard to put together an H22 or a F22 for that matter that could do the job.

Automakers aren't concerned with competing against modified 20 year old Hondas and such. You're arguing apples and oranges man. If you want to go that direction what if I told you a certain Challenger factory sponsored race car weighs 2700lbs without any serious chassis modification? I'd like to see someone build a Honda on a realistic budget that competes with a RWD 6 speed 500hp 2700lb Challenger. But this is all besides the point and off topic.

[Domesticated]

Are you forgetting the GTR, NSX and Supra? I'm sure out of the box these will put up against a 6.4L Hemi... They use Hemispherical combustion chambered engines and half the displacement....

Haha! It was a marketing thing.

But as mentioned before, there are only a few Japanese sports cars in that compete with the American line. If we go dollar for dollar I'd take a Viper, Vette, or GT40 for the price of the GTR and the LFA is a bit out of scope. Anyone can modifiy any car to do almost anything.

[TheProfessional]

Are you forgetting the GTR, NSX and Supra? I'm sure out of the box these will put up against a 6.4L Hemi... They use Hemispherical combustion chambered engines and half the displacement....

I didn't know how deep into it was mentioning and I figured we were talking cars that the average cat could afford, and Honda built only, well, save for the Supra which is still affordable I suppose (I paid $19,000 for mine as is), I'd have to say that the GTR is the only car that poses a serious challenge to the Hemi's as far as straight line performance goes (Dominates in the turns) but i'd agree, those are 3 cars i'd definitely take to a Hemi on the track, straight line or otherwise.

[TheProfessional]

Automakers aren't concerned with competing against modified 20 year old Hondas and such. You're arguing apples and oranges man. If you want to go that direction what if I told you a certain Challenger factory sponsored race car weighs 2700lbs without any serious chassis modification? I'd like to see someone build a Honda on a realistic budget that competes with a RWD 6 speed 500hp 2700lb Challenger. But this is all besides the point and off topic.

Not wanting to go further off topic, but if it's 500 and 2700lbs then my CRX has that lock, stock and barrel, Granted he may have the launch but i'd give him until I grab traction at the top of 2nd before He gets Ja-Rule'd...


MOooooniiiiiiiiiiicaaaaaaaaaaaaaaaaa....


I might have misunderstood but I was actually agreeing with you that the Hemi is a dominating motor and the cars that motor is in are pretty formidable, was just giving my two cents in regards to how they stack up against my own personal toys.

[gloryaccordy]

The R/Ts are not that fast stock. High 13s? A lot of similarly priced Japanese cars (WRX, Legacy GT, MS3) are that quick for the same or even less money.

SRTs are quick (mid 12s) but they are like 40-50K to start. That is 335i + mods, S4, EVO X + mods money. Plus they are so damn big. I like a nimble car.

[SOHC-FTW]

Displacement is and always will be a factor there is no denying that especially build for build money for money.

[owequitit]

The R/Ts are not that fast stock. High 13s? A lot of similarly priced Japanese cars (WRX, Legacy GT, MS3) are that quick for the same or even less money.

SRTs are quick (mid 12s) but they are like 40-50K to start. That is 335i + mods, S4, EVO X + mods money. Plus they are so damn big. I like a nimble car.

Hell a new Accord V6 will run 14 flat at 100MPH with a secretary behind the wheel...

Displacement is and always will be a factor there is no denying that especially build for build money for money.

This is total non-sense. Inch for inch a higher tech engine will own the lower tech one every time. You can say you prefer the power delivery or whatever, but in terms of sheer output, the higher tech engine will always win.

[PR CB7]

holy shit this is getting way off topic...

in reality the real comparison will be a fully bolted and tuned h22a vs h23a

the f22 is no challenge in no way whatsoever, as soon as that vtec engages, its over on a healthy H

if you are going to compare, compare red apples vs green apples
dont compare green apples vs lemons please

the only thing the f22 brought to the table was its stroke and honda then made the h23avtec
the f22 head can do wonders, but in reality it aint no performance head

this thread is like comparing a h22 vs a k24
technology will always prevail