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    Default Honda F20B DOHC Compression Test

    Me and my brother have bought Honda F20B to swap into EK Civic, the readings we got are Cyl 1: 235 Cyl 2: 225 Cyl 3: 235 Cyl 4: 225
    Are these readings good? It is with T2T4 transmission. @capsat @Xulfiqar
    Actually we had Civic Ek which had D16 in it which was driven about 300k km but it overheated and block cracked so we threw out the D16 and bought F20B. Will swap it in till the car gets ready from body shop.

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    am really sorry i have no clue for Honda at ALL. @SER_GTR @syncview @rustam54 the @Xulfiqar you already have tagged.
    - www.crackwheels.com - A skilled Dictator is much more beneficial to Country......than a Democracy of Ignorant people

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    Readings SHow Quiet A STRONG Compressions.......Its A Healthy Motor....
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Quote Originally Posted by SER_GTR View Post
    Readings SHow Quiet A STRONG Compressions.......Its A Healthy Motor....
    Bro why are Cyl 1 and Cyl 4 readings same and Cyl 2 and Cyl 3 readings same? Is their any effect if all readings are not same?

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    readings are good, the little variations are acceptable.
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    @Xulfiqar @ahmedraja1996 @SER_GTR

    There are too many questions from my side from experts. Most of them are:

    1. Is F20B swap in civic 99 vti oriel automatic is bolt on swap?

    2. Is D16 auto transmission can be coupled with F20B?

    3. Is d16 engine wiring and ecu is compatible with F20B?

    First tell me answer of these question then i will ask other questions. I hope experts surely answers all question one by one.
    Engineer + Car's Passion = Enthusiastic Personality.

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    Quote Originally Posted by galant1 View Post
    @Xulfiqar @ahmedraja1996 @SER_GTR

    There are too many questions from my side from experts. Most of them are:

    1. Is F20B swap in civic 99 vti oriel automatic is bolt on swap?

    2. Is D16 auto transmission can be coupled with F20B?

    3. Is d16 engine wiring and ecu is compatible with F20B?

    First tell me answer of these question then i will ask other questions. I hope experts surely answers all question one by one.
    1) Its not bolt on. In EK civic B16 D16 are bolt on
    2) Nope F20B has T2T4 tranny can't be coupled with D15/D16 tranny
    3) Not even in your dream every engine has its own wiring and own ecu either MT or AT.

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    Quote Originally Posted by ahmedraja1996 View Post
    1) Its not bolt on. In EK civic B16 D16 are bolt on
    2) Nope F20B has T2T4 tranny can't be coupled with D15/D16 tranny
    3) Not even in your dream every engine has its own wiring and own ecu either MT or AT.
    @ahmedraja1996

    If it is not bolt on swap then which amendments we have to do for swap in civic 99?

    Have you swap it in your car or it is ongoing project? Keep us updated through pics bro.

    BTW what is total cost of F20B engine + trasmission+ wiring +ecu etc with comes with engine.
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    Bro i advise anyone going for B18C H22A B16B F20B should have deep pockets. Its not simple and these are notorious engines anything can mess them up and they're not intended for daily use cars, can be night mare to maintain em

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    Quote Originally Posted by ahmedraja1996 View Post
    Bro why are Cyl 1 and Cyl 4 readings same and Cyl 2 and Cyl 3 readings same? Is their any effect if all readings are not same?
    Tolerance Of 10-15 Psi Is Acceptable AMoung Cyl........Its Normal....
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    Quote Originally Posted by galant1 View Post
    @xulfiqar @ahmedraja1996 @ser_gtr

    there are too many questions from my side from experts. Most of them are:

    1. Is f20b swap in civic 99 vti oriel automatic is bolt on swap?

    2. Is d16 auto transmission can be coupled with f20b?

    3. Is d16 engine wiring and ecu is compatible with f20b?

    First tell me answer of these question then i will ask other questions. I hope experts surely answers all question one by one.
    1.no
    2.no
    3.no
    TOYOTA Sprinter 86- AE80 DOHC 20v'D TOYOTA Corolla 98- AE101 4AFE 16v

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    The compression is pretty good,why F20B btw? i'd go for a f20b only if i plan for a turbo setup(because of iron sleeves) that too for a mild build, for going N.A there is no replacement for the displacement and in that case, H22's ftw (the only con are the FRM sleeves, though they work great on N.A applications)
    ''Peace is an unstable equilibrium,that can only be preserved by acknowledged supremacy and...equal power.'' ''We give up the fort when there is not a man left to defend it.''

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    @ahmedraja1996

    1. How you did the compression test?

    2.Can you explain the procedure for testing the compression values before buying the engine?

    3.Which instrument are you using for doing compression test?
    Engineer + Car's Passion = Enthusiastic Personality.

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    Quote Originally Posted by ahmedraja1996 View Post
    Bro i advise anyone going for B18C H22A B16B F20B should have deep pockets. Its not simple and these are notorious engines anything can mess them up and they're not intended for daily use cars, can be night mare to maintain em
    On the contrary, I think they are great motors for daily driven vehicles. They're simple and easy to work with, parts are available and not expensive. They're extremely reliable and not that bad on fuel.


    Quote Originally Posted by immad100 View Post
    The compression is pretty good,why F20B btw? i'd go for a f20b only if i plan for a turbo setup(because of iron sleeves) that too for a mild build, for going N.A there is no replacement for the displacement and in that case, H22's ftw (the only con are the FRM sleeves, though they work great on N.A applications)
    What's wrong with F20b man. Yes it's a bit down on torque, but that shouldn't matter much in a lighter Civic, especially when it's coupled with very close ratio T2T4. On the plus side it revs like a B motor, has an even better Bore to Stroke ration than B18C, and offers same amount of power as the H22.

    And lastly, it's quite cheaper than an H22 these days. And I think I'm not wrong in saying that's a bit more reliable, strong- and when the things go wrong, overhaul-able.
    I'd always go for an F20b over H22 in a Civic.

    Yes, but I do believe in a F20b vs H22 drag, H22 would always win. Could very well be other way around on a track though, nevertheless that is irreverent in Pak

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    Quote Originally Posted by uiv View Post
    On the contrary, I think they are great motors for daily driven vehicles. They're simple and easy to work with, parts are available and not expensive. They're extremely reliable and not that bad on fuel.



    What's wrong with F20b man. Yes it's a bit down on torque, but that shouldn't matter much in a lighter Civic, especially when it's coupled with very close ratio T2T4. On the plus side it revs like a B motor, has an even better Bore to Stroke ration than B18C, and offers same amount of power as the H22.

    And lastly, it's quite cheaper than an H22 these days. And I think I'm not wrong in saying that's a bit more reliable, strong- and when the things go wrong, overhaul-able.
    I'd always go for an F20b over H22 in a Civic.

    Yes, but a do believe in a F20b vs H22 drag, H22 would always win. Could very well be other way around on a track though, nevertheless that is irreverent in Pak
    Nothing wrong as such mate, its less torquey, produce lesser than H22 (not equal as h22's does) H22's got better aftermarket support imo, T2T4 close ratio is a good trans you mean? pretty wrong there, all H,F trans are worth dumping into trash as they're all lousy. on my H22 allmotor (on a typeS motor) i had M2S4 trans with phantomgrip (aftermarket) and i had been running totally custom gearing, i had straight cut close ratio 3rd and 4th and above all i had 4.7 FD (GearX) after all that i had been able to race some seriously fast cars (evo's etc) or else the car was **** slow. i know, definition of being ''FAST'' here is different as per me because when stock motor runners swap these dohc motors they feel ''go baby go effect'' for sure, for them these F20b's float the boat pretty well but when you're ''into it'' seriously, you're supposed to see the pro's and con's deeply. @b18c, well those B's got a very well flowing head design which has no match with these H's and F's. @reliability, H22's are equally reliable, and yes H22's can be rebuilt if one knows ''how to do it all'' if you want to keep it all stock, f20's are good, if you want to see tracks often h22 gets my vote hands down (even better than h23's just because of better revving capabilities).
    ''Peace is an unstable equilibrium,that can only be preserved by acknowledged supremacy and...equal power.'' ''We give up the fort when there is not a man left to defend it.''

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    This is like getting 100 percent on a test and then asking if I pass
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    Quote Originally Posted by immad100 View Post
    Nothing wrong as such mate, its less torquey, produce lesser than H22 (not equal as h22's does) H22's got better aftermarket support imo, T2T4 close ratio is a good trans you mean? pretty wrong there, all H,F trans are worth dumping into trash as they're all lousy. on my H22 allmotor (on a typeS motor) i had M2S4 trans with phantomgrip (aftermarket) and i had been running totally custom gearing, i had straight cut close ratio 3rd and 4th and above all i had 4.7 FD (GearX) after all that i had been able to race some seriously fast cars (evo's etc) or else the car was **** slow. i know, definition of being ''FAST'' here is different as per me because when stock motor runners swap these dohc motors they feel ''go baby go effect'' for sure, for them these F20b's float the boat pretty well but when you're ''into it'' seriously, you're supposed to see the pro's and con's deeply. @b18c, well those B's got a very well flowing head design which has no match with these H's and F's. @reliability, H22's are equally reliable, and yes H22's can be rebuilt if one knows ''how to do it all'' if you want to keep it all stock, f20's are good, if you want to see tracks often h22 gets my vote hands down (even better than h23's just because of better revving capabilities).
    I do agree with what you said, but only for a track, or serious business car. For a daily driven, A to B, fun to drive vehicle- these dohc vtecs with their respective trans are just fine. That's why I said to the OP, in my earlier post, that they ARE infact daily driven motors.

    And again, about your definition of fast, I do think the same. These motors are much over hyped by Honda boys all over the world. But when you consider Pakistan; with all our 660cc JDMs and D15B 95 Civic sports cars and ultimate hypercar 'Reborn'... it's not hard to think why a dohc vtec driver must feel like a fighter pilot.

    About Hs' reliability, IMO H tend to have a spun bearing, bent/broken rod, shot rings, valve float etc more than F20b... or it could be just me. And yes Hs can very well be rebuilt, but getting FRM sleeves won't be much fun in Pakistan.
    About H23, people build and rev them to 8500 rpms with no problems. Above that even H22 would suffer. But yes, H22 may rev better coz of shorter stroke- plus bluetop doesn't have oil squirters either.

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    Im with uiv, mostly because the F20B feels like a punchy B16 - I really like all the Ford BDA engine clones that japan made - the F20 is also one of them but it was meant for a better built car, the H22 was also meant for a tourer car like the prelude thats why all the F-H series gearboxes are tall.

    the little nuance about the H22 is the nicasil lined sleeves they are not that hard to remachine provided you have the correct tooling for it. Anyone who has rebuilt old alu mercedes V8s can do that. For squirters - its not too hard to add them either - find a usable design, tap into the gallery and tighten down (I did that on my VW diesel when I put a snail on it)
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    Quote Originally Posted by margallar View Post
    This is like getting 100 percent on a test and then asking if I pass
    '
    The engine was very well maintained and its driven not more then 40-45k km.

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    F20B is much more strong internally then H22A, but aftermarket support for H22 and B16 are much available but i kinda like blue top

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