F20A VTEC Or Not??

10467 Views 19 Replies 10 Participants Last post by spirit7623, Aug 18, 2004

91AccordSi

Discussion Starter · Mar 2, 2002

Is the F20A (JDM Accord 2.0 SI Engine) VTEC or Not? I have seen DOHC Valve covers for it and have seen articles that said its a H22 that is destroked and no VTEC. I dont know what to believe. I'm getting my 91 Accord SE back in buisiness after sitting around for almost a year. Which raises anther question. For those of you who dont know its an automatic. Tranny is messed up to the point where you cant drive it down the street and back. I'm getting a JDM auto tranny will it work with the F20?? And last but not least I can get the F20 w/6month unlimited mile warrenty for $625. Would you get the F20 or rebuild the F22A6 with better parts and work from there?? I'm planning mild nos or turbo.

1 - 20 of 20 Posts

AREITU

· #2 · Mar 3, 2002

I'd recommend the F20...probably cuz' it's newer and more powerful. I have also heard that it's torquey.
I started a thread with a question similar to yours, which was F20B vs. H22A. The F20B has a blue valvecover with DOHC VTEC stamped on it, and the automatic SOHC VTEC F20 comes with a tiptronic.

On this link, http://asia.vtec.net/article/CF4/index.html, there's a pic of a JDM Accord (They get all the good stuff) with an F20B DOHC VTEC in it...so far, I've managed to baffle a few people on what the difference between the F20 and the H22 was...I think it's a destroked F22, with a different head.

Come to think of it, I think the S2000 uses an F-series...

VTECsqznN2O

· #3 · Mar 5, 2002

the f20a is non vtec...from what i have been told the f20b is non vtec too but I have seen a pic that shows it as vtec....the s2000 is an f20c1 i think..but I believe its different then the accord f series

AREITU

· #4 · Mar 5, 2002

From what I gather, there's a VTEC F20 and a non-VTEC F20.

The S2000's F20C1 rotates in the opposite direction from normal Fs has a different valvetrain, and drives rear wheels.

VTECsqznN2O

· #5 · Mar 5, 2002

ya theres a vtec and a non vtec f20..so ive heard..ive also heard the f20's are both non vtec and the dohc vtec ones everyone is talking about is an h20 thats in the sir-t...ive heard it both ways so i dunno what is right anymore....and your right on the f20c1..i just couldnt remember what was different

AREITU

· #6 · Mar 5, 2002

Honda actually has some of the worst engine coding on earth, next to German companies.
Since H and F transmissions are interchangeable between H and F engines, and nobody I know knows the difference between the H and F engines, I can only assume that there's only stuff like block design, and head design thta's different.

But there is no H20. In the VTEC.net website, it clearly shows an F20B with "DOHC VTEC" on top. The Japanese get all the cool shit.

Alan

· #7 · Mar 5, 2002

There has two F20B engines in JDM accord line-up.
Both DOHC Vtec & SOHC Vtec engine are coded F20B.

As "AREITU" said, the only way to identify it is the blue cover

F20C has DOHC Vtec & is used on S2000

Correct me if there's anything wrong. hehe..

v4lu3s

· #8 · Mar 5, 2002

f20a--non vtec, heard of it in SOHC and DOHC, but never seens specs on DOHC

f20b is a DOHC vtec engine, its just a destroked h22, has a blue valve cover, makes 200hp, but less torque than the h22a, it also revs alittle higher than the h22a.

the f20c is the s2000 engine...

Kilika2k

· #9 · Mar 6, 2002

Well for one thing, some engine codes are different in Japan then what do we have here. Since we never had the F20B, a lot of ppl get confused about non-vtec versions and the s2000's engine.

VTECsqznN2O

· #10 · Mar 7, 2002

the f20b is mainly a road race motor...thats why it revs higher then the h22a and thats why it makes less torque...all this prevents wheelspin when downshifting in the corners...and the s2000 motor is the f20c and I believe it spins in the opposite direction then the other f series motors liek AREITU said.

gutterslide

· #11 · Apr 15, 2003

i have an f20a sohc, i can't find specs or parts anywhere, only a few websites in all japanese. i paid $600 for it, and am in the middle of installing it. why can't anybody get their shit straight about JDMs???

AccordDriver92

· #12 · Apr 15, 2003

f20b very $ but worth it

VTECsqznN2O

· #13 · Apr 16, 2003

gutterslide..here are the specs for the f20a

1955 cc's
came in the 90-93 accords in japan
hp: [email protected]
torque: [email protected]
9.5:1 compression
bore: 85mm
stroke: 88mm

hope this helps you out gutterslide.
If you guys need anymore info on any motors..just email me

ruffrydres2

· #14 · Aug 6, 2004

f20a help!!!

91AccordSi said:
Is the F20A (JDM Accord 2.0 SI Engine) VTEC or Not? I have seen DOHC Valve covers for it and have seen articles that said its a H22 that is destroked and no VTEC. I dont know what to believe. I'm getting my 91 Accord SE back in buisiness after sitting around for almost a year. Which raises anther question. For those of you who dont know its an automatic. Tranny is messed up to the point where you cant drive it down the street and back. I'm getting a JDM auto tranny will it work with the F20?? And last but not least I can get the F20 w/6month unlimited mile warrenty for $625. Would you get the F20 or rebuild the F22A6 with better parts and work from there?? I'm planning mild nos or turbo.

I have a f20a DOHC and i cant find any parts for it(stock that is) My timing belt broke and bent 5 valves. now i cant find the parts to get my car fixed!
do u know any place i can get parts?

ruffrydres2

· #15 · Aug 6, 2004

gutterslide said:
i have an f20a sohc, i can't find specs or parts anywhere, only a few websites in all japanese. i paid $600 for it, and am in the middle of installing it. why can't anybody get their shit straight about JDMs???

can u even find parts for your motor

Kilika2k

· #16 · Aug 6, 2004

Wow...ressurected.

Anyways, best way to find parts for it is to find another engine or go through Honda for OEM replacement parts. If the motor is busted, you're probably better off getting a swap, preferably a H22A. You can also do a rebuild but thats probably more costly than a used engine. Yes, aftermarket maybe non-existent without going custom but they do exist. Its just how much are you willing to pay.

Kilika2k

· #17 · Aug 6, 2004

VTECsqznN2O said:
the f20b is mainly a road race motor...thats why it revs higher then the h22a and thats why it makes less torque...all this prevents wheelspin when downshifting in the corners...

Thats not the reason why it revs higher. It revs higher because it can. Due to its shorter stroke, it can make more peak power by revving more. High RPM horsepower is more important than low end torque when it comes road racing because you never go down to the low revs and thats what shorter gear ratios are for. Wheelspin has nothing to do with it as power should be controlled by the driver. The 2.2 motor is just basically a stroked 2.0 motor. Naturally speaking, shorter stroke means higher revs, and longer strokes mean lower revs. HP is increased due to a formula involving torque and revolutions.

VTECsqznN2O

· #18 · Aug 6, 2004

Kilika2k said:
Thats not the reason why it revs higher. It revs higher because it can. Due to its shorter stroke, it can make more peak power by revving more. High RPM horsepower is more important than low end torque when it comes road racing because you never go down to the low revs and thats what shorter gear ratios are for. Wheelspin has nothing to do with it as power should be controlled by the driver. The 2.2 motor is just basically a stroked 2.0 motor. Naturally speaking, shorter stroke means higher revs, and longer strokes mean lower revs. HP is increased due to a formula involving torque and revolutions.

wow..old thread..but in essence..that is what i was getting at..it was built as a road race motor and was meant for higher revs...thats why they gave it a shorter stroke...a shorter stroke increases rev potential but it adversly effect torque...but brute torque is not needed for road racing..I didnt explain myself fully enough..and the f20b is basically a destroked h22

91AccordSi

Discussion Starter · #19 · Aug 6, 2004

wow its been a long time since I have been here. No you really cant find parts for this motor in america. Im pretty sure someone can get them but the problem is who

I would prob just get a new (as in different) motor. Since the creation of this post I got a better job (US ARMY Hoooah!!) and bought a new car (TSX). But If I were you I would get a H22. You can find parts 4 it everywhere. Good Luck

spirit7623

· #20 · Aug 18, 2004

It uses h23/itr timing beLts /. It's basiclly an f22/h23 parts wise

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