Swapping in a F20B SOHC Vtec

[KRITIK]

hey peeps

i have a 91 Cb3 and it came with a F18a carb
now i am thnkn of swapping in a F20B sohc vtec, however i think i may be runnin into some issues with the powersteering as i thnk the f20b came with eps
and the cb3 had a powersteering pump,

my question is can the f20b be modified to run the powersteerin pump from the f18a

[Tippey764]

Does it have spots on the head to bolt the power steering bracket up?

if so, swap the crank pully from the f18a and bolt the bracket to the engine

if it doesn't have a spot for the bracket than you're SOL

[thepowderblue]

It will Be a pain in the ass to convert it from carbureted to fuel injected.

[Wickit]

It will Be a pain in the ass to convert it from carbureted to fuel injected.

Exactly what I was thinkin. Hope u go through with it but damn thats gonna take a while and a lot of patience. Good luck!

[Accrdwgnguy]

It will Be a pain in the ass to convert it from carbureted to fuel injected.

How you know? You have experience in that area?

[Tippey764]

How you know? You have experience in that area?

experienced enough to go its going to be hard

Since its carburated theres obviously no ecu and many many sensors missing. Ahella alot of wiring to do.

[deevergote]

evil_demon_01 converted from carb to FI, I believe... so he may be able to help there.

Of course, the F20B SOHC VTEC is a pretty crap motor... it's basically an F22B1 (crap head) with .2L less displacement. Though compared to an F18, it'll probably feel pretty good!

I don't know for sure, but I THINK the blocks should be similar. There should be a mounting location. It's a little odd for such an old car to be equipped with eps... Honda does some weird things.

We did have one member on here with an F20B SOHC in his car. I don't know if he used power steering, though. A lot of swapped guys just delete the power steering. I did on mine.

You MIGHT be able to convert your car to EPS. I know a few members here have considered it... myself included. cp[mike] has looked into it a bit more deeply than I have, so he may be able to offer some advice.

Unlesss you're completely set on this engine, I suggest perhaps looking for something else... F20A, F22A, F22B, F20B DOHC, H22A, H23A... there are MUCH better options than that F20B.

[djcaz_aom]

Why would the swap be hard? The CB chassis comes FI, so all needed would be the wiring harnesses from a FI model. Wiring is not hard at all. Labor-some, but not difficult when all your doing is swapping harnesses.

[Tippey764]

Why would the swap be hard? The CB chassis comes FI, so all needed would be the wiring harnesses from a FI model. Wiring is not hard at all. Labor-some, but not difficult when all your doing is swapping harnesses.

Well if he lives in a country with a carburated engine he probably lives in a country where CB's are rare.

Plus who knows what other differences there would be when swapping harnesses.

[KRITIK]

hey peeps, dont mean to revive a deaf thread here,

but the swap was complete without much hasssle, the SOHC F20B does have bolts to mount the powersteering pump, with a lil modification.

The mechanic howeever didnt time the (find tdc on #1) so the car jumped timing with the F18a crank pulley so now i have a few bent valves. motor will be refreshed and boosted.


i have most of the work documented, so if any1 can direct me to where i can start a build or owners thread i will post details there.

Also CBs 3s 7s or common in Jamaica

... deevergote Based on you said about the f20b and the f22a/b being similiar, do they use the same water pump and timing belt...
also planning on gettin an LSD trans, will this G BOX CODE M2B4 4003309 bolt up to the f20b