Whp question

[CB7JDM4DOOR]

I was wondering how much hp my car makes at the wheels. It's a stock 4 door with 222,xxx miles

[Quashish]

Go get it dyno tested. The F22a1 and F22a4 was supposed to have 140 hp while the F22a6 had 10 more hp. But I dont think that was at the wheels. And after 20 years its probably less than that. Theres no answer anyone of us can give you.

[cb7sk8rdude]

The f22a1 has 125hp stock and 100-110whp.

[Quashish]

Just looked it up
F22a1 125hp 137 lb.ft torque
f22a4 130hp 142 lb. ft torque
F22a6 140hp 142 lb.ft torque

My bad

[edit] theres also an f22a1 in the 92-96 prelude
135 hp 142lb. ft torque
didnt know about that kinda weird.

and an F22a7 says in an accord and prelude S no year given just a little more torque
SOHC 16 valve 140 hp 145 lb. ft torque

F22b
F22b1
F22b2
F22z2
F22c DOHC Vtec 16 valve which uses PGMFi from an s2000

[mtnbikaah]

Probably 80-100whp. Condition is everything.

[Racer_XXX]

theres also an f22a1 thats dohc still 16 valve from a 92-96 prelude
135 hp 142lb. ft torque
didnt know about that kinda weird.

It was SOHC

[deevergote]

The Prelude F22A1 was the exact same engine as the Accord F22A1. That's why it has the same name. Not DOHC. The ECU is responsible for most of the 10hp difference.

Quashish, please don't present "facts" unless you actually know them to be true. Especially in this area. You've given grossly incorrect information twice in this thread alone! The person you're "educating" doesn't know you're giving wrong information, and they will believe it to be true... and then they will spread it.

CB7JDM4DOOR, the number of doors on your car tells us nothing. To help you, we need your year and trim, and what country you're from (we assume US, since you use miles... but it helps to know where you're from.)

Assume a 15-18% drivetrain loss for our cars. So if you have an F22A1 (DX or LX trim) making 125hp at the crank, you're looking at a drivetrain loss of about 18.75-22.5hp. So rounding... you're looking at like 102-106whp in stock form, HEALTHY. Now, add 20 years of wear and tear, and probably a need for a tune up and valve adjustment... chances are good that you're making less than 100whp.

[Quashish]

Well I was looking at this honda database app. Thats why I said I thought it was kinda weird. Previous post edited.

[deevergote]

Verify information before repeating it. Otherwise, you're falling victim to the same sort of thing you're doing... simply repeating incorrect information. The more it gets repeated, the harder it is to keep it from spreading. There have been MANY things on this forum alone that were believed to be true, yet they were completely false. Those that repeated the information simply took it for granted, and never sought to verify it.

I'm guilty of it myself. There was a span of YEARS where the Mitsubishi 14b turbo (a very common, affordable, and easy to find turbo) was deemed far too small for the F22A. Undersized turbos will create heat that can destroy an engine (that is true.) However, it wasn't until about this time last year that toycar appeared and provided hard evidence proving that the 14b is NOT too small. Years of pushing people away from a perfectly good turbo option due to unverified false information.

[GhostAccord]

15-18% is a good percentage for drive train loss on a new chassis off the lot. I would look more towards losing 20-25% for a 19-22 year old engine. This really all depends on the engines health of course....... Compression test and a dyno is the best way to find true Hp & tq numbers. The rest are just guesses, educated or not!

[deevergote]

15-18% would still be the drivetrain loss. That won't change, unless perhaps you have a damaged transmission, oversized wheels, etc...
Some people believe our drivetrain losses to be closer to 10-12%, but I think that's overly optimistic. I'd rather assume I'm making less power than assume I'm making more.

But yes, there will be additional losses due to wear (the engine itself, ignition components, emissions components... plenty of things will cause a loss of power over time.)

[GhostAccord]

You are absolutely correct. I used the wrong terminology..... I should have said percentage of overall power loss instead of drive train.