f20a

[deevergote]

The non-VTEC head has a better port design, and flows better. People REALLY need to stop comparing F/H frankensteins with the D/B frankensteins... the D/B motors respond well to it. The F/H motors don't have much to gain. At least not the ones we use (yanking the F22B1 head for something else could be a good idea... )

[blizzard335]

F20a SOHC has around 136PS ~ ish IIRC.

the DOHC has 150PS

the F20a is JDM

F20aX (numeric) could be EDM, or SOuth American, or Asian market motors

[knysha]

F20aX (numeric) could be EDM, or SOuth American, or Asian market motors

F20AX are EDM.

My CB3 had F20A4, now it's F20Z1 - dunno why, because F20Z1 were putted in Rovers

[marcusv8thunder]

yep F20a2-8 are all in european cars, ranging from 110 to 147bhp

Most CB3's in the UK are F20a8 or 7s from what i gather

[jedi-masta]

Hey guys, just spotted this thread.....been a while.

Hi marcus, just so u kno i've got a CC1 (CB7 coupe) and in the book it says the engine codes F20a5......

sooo....is that the 150bhp variant or another type???

[cb3 vtec]

Mine is f20a3(carb),i havent got any information about my engine..

[deevergote]

I know that the carb'd versions of the F20A are pretty much the bottom of the barrel. The only CB engine weaker would be the carb'd F18A.

I believe that the F20A that makes 150hp is DOHC. (and in re-reading this thread, I see that has already been said.. Oh well, doesn't hurt to repeat correct information! Though technically, it's PS and not HP)



I love to see so many non-US members posting in one thread! There are so many countries represented in this one conversation! (though I assume the guy with JPN as his location is just trying to be cool...)

[adams03]

i've got the f20a5 in my cb3...
anyone got any info on this engine???

[deevergote]

i've got the f20a5 in my cb3...
anyone got any info on this engine???

# Bore × Stroke: 85.0 × 88.0 mm
# Displacement: 1997 cc
# Compression ratio : 9.5:1
150 Ps @ 5400 rpm


Not a bad engine. In fact, quite possibly the best SOHC F20A there is. The head design should be similar to the F22A, which means you have the same performance potential.

[adams03]

# Bore × Stroke: 85.0 × 88.0 mm
# Displacement: 1997 cc
# Compression ratio : 9.5:1
150 Ps @ 5400 rpm


Not a bad engine. In fact, quite possibly the best SOHC F20A there is. The head design should be similar to the F22A, which means you have the same performance potential.

that's good to hear!!

what can be done to it??
can't seem to find any performance parts for that engine like a header or other stuff??

thanks

[B00STd_FoeDoe]

So what is the best head for an f20a... I've read that the f22a6 has a more aggressive cam than the f20a. My plans for my f20a is to get some cams i/h/e, h22 im/tb (already have). an get a tune. Considering boost but I want to explore the potentionals of an n/a car first..