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Old 09-23-2010, 07:34 AM   #21
SM4_Putih
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Originally Posted by JDMDriver View Post

I am suspecting this may be a F20a not B20a (possibly miss heard the previous owner).

The car is right hand drive so an F20a is not out of the question. They may have cars configured for their market (Indonesia or Malaysia) but using JDM engines.

I will try confirm it when i compare it to my engine which is a JDM F20a. Though my car is an actual JDM car. Still his engine looks very similar to my F20a.
Wasn't F20A is a SOHC engine ? mine is a DOHC one..., as far as i know F-series engine with DOHC is F20B and F22B..., am i right ?
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Old 09-23-2010, 08:45 AM   #22
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There are 2 versions of the F20A. One is SOHC, one is DOHC.
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Old 09-23-2010, 10:27 AM   #23
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this is the F20a DOHC

looks like that's what op has
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Old 09-23-2010, 10:37 AM   #24
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Oo..ok..., sure it looks more like F20a DOHC now...

So is it a good engine ? What honda car its originally from ?
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Old 09-23-2010, 10:40 AM   #25
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F20A

This engine was used in the 1990–1993 CB3 and CB4 Honda Accord 2.0Si and Si-T in Japan.

Specifications

* Bore × Stroke: 85.0 × 88.0 mm
* Displacement: 1997 cc
* Valve Configuration: DOHC, 16 valves
* Compression ratio: 9.5:1
* Max power: 150 hp (112 kW) @ 6100 rpm
* Max torque: 137 ft·lbf (186 Nm) @ 5000 rpm
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Old 09-23-2010, 11:10 AM   #26
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Where do i can find its manual ? I need it so that my mechanic can do a proper tune-up.

Thanks.
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Old 09-24-2010, 01:54 AM   #27
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Quote:
Originally Posted by JDMDriver View Post
I will try confirm it when i compare it to my engine which is a JDM F20a. Though my car is an actual JDM car. Still his engine looks very similar to my F20a.
I had compared this to my car and its a dead ringer for the F20A DOHC EFI engine.

Im 99% sure
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Old 09-24-2010, 02:00 AM   #28
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Originally Posted by SM4_Putih View Post
Where do i can find its manual ? I need it so that my mechanic can do a proper tune-up.

Thanks.
Some of the most common tune up requirement (spark plug types, spark plug gaps etc) can be found in the stickers underneath your front hood or bonnet.

If your car doesn't have all japanese writing everywhere (eg. fuse box, visor, tyre inflation sticker or engine bay stickers etc) then chances are its a locally available car (not a JDM).

In that case im in the opinion that you should just be able to walk up to any Honda dealer and ask the service department for some of its tune up specificiation (to a degree you can ask as they may like you to pay for their services instead).

Perhaps you can even buy a local version of the helms (or other) manual detailing your engine specs.
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Old 09-24-2010, 02:05 AM   #29
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I just remembered this.

Your service manual (grab one from the JY if you have lost yours) may actually have details for the F20 engines, well in Australia they do anyway.

Not that the engine was ever offered here but im guessing they circulate the same manual for other markets. They dont want to pay for individual print runs for each and every market hence why on the manual you see things like "for some types" and "for brazillian models" etc.
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Old 09-24-2010, 02:13 AM   #30
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Quote:
Originally Posted by JDMDriver View Post
Some of the most common tune up requirement (spark plug types, spark plug gaps etc) can be found in the stickers underneath your front hood or bonnet.

If your car doesn't have all japanese writing everywhere (eg. fuse box, visor, tyre inflation sticker or engine bay stickers etc) then chances are its a locally available car (not a JDM).

In that case im in the opinion that you should just be able to walk up to any Honda dealer and ask the service department for some of its tune up specificiation (to a degree you can ask as they may like you to pay for their services instead).

Perhaps you can even buy a local version of the helms (or other) manual detailing your engine specs.

Finally the mistery are solved....

Thanks all for the warm welcome and valuable insight. Hope you guys are here...

Ok...lets start building CB7...as some says that a good CB7 are not bought but build...

Thank you
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Old 07-15-2011, 11:50 PM   #31
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it's look like F20A engine. it's look same like my engine.
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Old 07-15-2011, 11:59 PM   #32
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http://www.torontoaccords.com/viewto...p?f=59&t=61723

my f20a
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Old 07-16-2011, 02:15 AM   #33
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What does the Stamping on the square next to the exhaust manifold say? could this be a Frankenstein motor?
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Old 07-16-2011, 09:29 AM   #34
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This thread is nearly a year old... why are we digging it up?
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Old 07-26-2011, 02:31 AM   #35
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there's a lot of changes of motor modification at this moment. dosen't matter it's already a nearly a year old but some newbies out there still need to know about this engine. and some of us already know the performance of this engine and some are still digging up about this engine. so is there any a problem to digging up?
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Old 07-26-2011, 04:27 AM   #36
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Quote:
Originally Posted by deevergote View Post
This thread is nearly a year old... why are we digging it up?
Because I'm curious.

Quote:
Originally Posted by deevergote View Post
Early 3rd gen Preludes had the B20, later ones had the B21. It's not the same as the Accord/Vigor one, though. Mechanically, yes... but it mounts differently (it's frustrating for 3rd gen guys in the US, because we never got the Accord/Vigor B20, and we can't use the ones we have here!)
Wait... What?
From what I understand, there are two versions of the B20A. One in the 86-87 lude and 86-89 vigor/accord, which leaned away from the firewall. The other, which was in the 88-91 lude (which also had the B21) that leaned toward the firewall.

Quote:
Originally Posted by YK86 View Post
Wow, that is a weird swap! I have the 86-89 Accord twin cam JDM B20A for my 86 Accord but I can't imagine it swapped into a CB. The motor tilts the wrong way (f22, h22, USDM 88-91 Prelude B20A all tilt towards firewall while these B20A's tilt forward) for one thing and wiring it totally different too. Also the 160HP JDM B20A has the Honda logo on the middle towards the front of the car on the valve cover so it sounds like you have that motor (the USDM Prelude B20A had the emblem in the corner). Here's what mine looks like on my engine stand mounted how it would be in the car.




Just curious but what year is your CB? Please post pics as I am very curious about this.
Quote:
Originally Posted by JDMDriver View Post
I am doubting he has a B20A (not trying to disrespect here), but look at your valve cover.

1) The oil cap is in different spots.
2) The distributor is mounted differently
3) There is a breather tube going into his valve cover (not on yours)
4) Spark plug depression contours of valve cover is shallower on yours (deeper in his)
5) Yours has a plastic timing belt cover (his is still part of the valve cover)
etc. etc.

I am suspecting this may be a F20a not B20a (possibly miss heard the previous owner).

The car is right hand drive so an F20a is not out of the question. They may have cars configured for their market (Indonesia or Malaysia) but using JDM engines.

I will try confirm it when i compare it to my engine which is a JDM F20a. Though my car is an actual JDM car. Still his engine looks very similar to my F20a.
Quote:
Originally Posted by YK86 View Post
His pics of the car/motor weren't there originally so I could only go by what he was describing. Now that I have seen the pics, that motor is NOT the B20A I have. Definitely looks like a f series.....but can't really tell which version.
Well, if my research serves me, there are two completely different versions of the B20A. One that came in early 3rd-gen Preludes, the 2nd-gen Vigors, and the 3rd-gen Accords. The other that came in the later 3rd-gen Preludes. (Which also came with the B21.)

That would explain the differences in the motors. But, if that was true, then there would be a lot of confusion, (me included) and the mounts (and motors) would be completely different for the 86-87 and 88-91 Preludes.

Either way, both versions of the 3rd-gen Prelude are very different from 4th-gen accords. I would like to know what is up with his car, if it really is a B20A.

Edit: Well, I guess since he hasn't been on since this thread died, we won't know.
Too bad, this thread was really intriguing.
I still want to know.
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Old 07-26-2011, 08:10 AM   #37
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cbscandal, you're right. There are two versions of the B20A.

Quote:
Originally Posted by rafiq34 View Post
there's a lot of changes of motor modification at this moment. dosen't matter it's already a nearly a year old but some newbies out there still need to know about this engine. and some of us already know the performance of this engine and some are still digging up about this engine. so is there any a problem to digging up?
Yes, but you posted a link to your F20A, which really doesn't really help all that much with the question at hand... aside from MAYBE identifying an engine owned by a member that no longer visits this forum.
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