Horsepower vs Torque F22 vs H22

[Mishakol129]

“You know, a lot of people buy horsepower, when what they really want is torque,” Hubbard told me. “Torque is what gets you to the speed you want quickly; horsepower is what keeps you there.”

https://secure.drivers.lexus.com/lex...ower-vs-Torque


I was reading the H22 has 161 lb·ft while the f22a has 142 lb·ft of torque.

If what this article is saying is true, why should we swap H22's in our cars if they only give us 20 more ft lbs of torque? Torque is what makes acceleration and isn't that what we want? Not like our speed limiters will let us go fast.

And why does the H22 have so much lower torque that it compares to the F22? Its like the F22 has more torque per horses while the H22 has less, considerably less torque per horsepower. I thought the H22, because of its bigger pistons and compression ratio, would have much more torque than that.

What gives?

[Accrdwgnguy]

Have you driven an H22 powered Accord or prelude? There is quite a difference, if you're on the fence about a swap I suggest a test drive.

[GeoffM]

Don't know if it applies here, but the higher you rev, the less torque you have.

[Accrdwgnguy]

Have you driven an H22 powered Accord or prelude? There is quite a difference, if you're on the fence about a swap I suggest a test drive.

Yeah I am on the fence if you noticed from the swap section. Its just strange how the H has lower torque per horses and the F has more. I would like to know why such a big difference.


As for the swap I think I shouldn't get it yet, I just rebuilt my F22a and its running very strong. Its powerful even with the Pt3 ecu. An auto wagon it is but its still fun to play with it on occation. So there's no point in buying an engine I may never use. I just was really tempted to get this H22 on ebay cause it was so cheap and came with the transmission.

Don't know if it applies here, but the higher you rev, the less torque you have.

Really? But I thought shear numbers are what matters. The numbers don't lie. The JDM H22a has 161 lb·ft while the F22a(6) has 142 lb·ft of torque. But the F22a(6) has only 140 horsepower. More torque than horsepower. The H22 has almost 40 less torque than horsepower.

I went through the same thing with people pushing me to get an H22A. In the end it didn't make sense. My Accord is my DD, and runs great, engine is in perfect health. It didn't make sense to pay the money and spend the time to swap out one good engine for another. That's assuming the H22A is in good running condition.

So I kept my engine, and upgraded it a bit. Still running strong with 242k miles, engine and trans have never been separated.

Have you driven an H22 powered Accord or prelude? There is quite a difference, if you're on the fence about a swap I suggest a test drive.

No I have not. Have you driven a freshly rebuilt F22a that has oversize pistons and 200 psi cylinder compression? That's what mine has.

[GeoffM]

Really? But I thought shear numbers are what matters. The numbers don't lie. The JDM H22a has 161 lb·ft while the F22a(6) has 142 lb·ft of torque. But the F22a(6) has only 140 horsepower. More torque than horsepower. The H22 has almost 40 less torque than horsepower.

Torque helps calculate hp. The higher you rev, the less torque you get.
The H22 has a higher redline then the F22.
Other factors aside, it makes less torque at those high revs.
(That's excluding VTEC, Higher compression, and everything that makes a H22 not an F22)

I just re read your question. I think VTEC has a lot to do with higher HP, but not torque. Torque is low end, and VTEC is high end. Torque falls off, and VTEC tries to bring it back.
Make sense?

[N9netwoAccord]

It's not that horspower is irrelevant when it comes to power. I think that's kind of what is being suggested. Horsepower and torque work together, while the torque may be very similiar, the horsepower is what seperates the two engines, making one "faster" than the other (notice faster in quotations, I can't think of a better word to use)

[Mishakol129]

I went through the same thing with people pushing me to get an H22A. In the end it didn't make sense. My Accord is my DD, and runs great, engine is in perfect health. It didn't make sense to pay the money and spend the time to swap out one good engine for another. That's assuming the H22A is in good running condition.

So I kept my engine, and upgraded it a bit. Still running strong with 242k miles, engine and trans have never been separated.

So what did you do to upgrade it?

[owequitit]

HOLY ridiculous misinformation Batman.

This thread is so full of B.S. it is alarming...

[GeoffM]

HOLY ridiculous misinformation Batman.

This thread is so full of B.S. it is alarming...

Yeah I'm just guessing.
I know I've read the correct info on this site before, I just don't want to look it up.

[ferenza]

Have you driven an H22 powered Accord or prelude? There is quite a difference, if you're on the fence about a swap I suggest a test drive.

This.
An f22 pulls hard, but the h22 pulls even harder.
A local guy let me test his new h22 out and it sits you back in the seat.Plus it idles smoother and at redline it doesnt strain as much as the f does.

[H311RA151N]

This.
An f22 pulls hard, but the h22 pulls even harder.
A local guy let me test his new h22 out and it sits you back in the seat.Plus it idles smoother and at redline it doesnt strain as much as the f does.

The F really does strain ALOT in the upper RPMs. I like the low end it has though.

[8ball]

^ I start shifting at about 5.5k when I feel like speed racer, those 700rpms till redline are anemic. I think its a number of factors that make the F22 inferior to the H22, still I'd rather have a (JDM) H23A over the H22 or F20B. I'm happy with the F22 for now.

[H311RA151N]

When Im all the way on it in my 93 LX I shift at 5500-5800. There just isnt anything up there.

When I have someone behind me Ill take it to rev limiter for the smoke and flame or two but thats the only reason.

[Madpol]

[I]I thought the H22, because of its bigger pistons and compression ratio, would have much more torque than that.

What gives?

how does an H22 have bigger pistons than a F22?
they are both 2.2 litre/ 2200cc or how ever you wanna call it.

i might be incorrect in this but comparing an H22 to an H23 you might find that the H23 has bigger pistons hence the H23= 2300cc/ 2.3 litre as opposed to the H22 being 2200cc/ 2.2 litre

but despite that i went to an H22a simply because the cost was WAY down and the conversion super simple. i scored the engine, gearbox, ECU and loom and shafts and front rotors out of a 92 prelude for $650 including delivery so at the end of the day i got a massive performance increase for little buck...i guess what im saying is you got to weigh up the pros and cons and whats feasible according to your time and cash flow.....sorry if thats a bit off topic

[Jarrett]

I'm with owequitit. If you don't understand the equation behind how horsepower is calculated then please don't explain horsepower or torque to anyone. To put it quite simply, torque is simply work being done. An F x d relationship, if you will. When you include "rpm" that has minutes as the time element you've got a rate in which that work is done. Horsepower is just that. A rate at which certain amounts of torque are being produced depending on a given rpm.

Madpol, please understand that bore is one of three factors used to determine an engine's displacement. In addition to bore there is stroke(where the H22A is behind the F22A and H23A) and number of cylinders. There is a large post in the performance section that covers all of the F/H dimensional information. I suggest you look it over.