A20 Question....
 

So I can pick up a short block A20A1 from my school for free, and I was really thinking about picking it up, making it run, and POSSIBLY do a low budget turbo build on it, just for fun ;D The only problem is the A1 was carbeurated. the A3 and A4 Versions were fuel injected however, and since it's a short block is it still possible to make it fuel injected??


The only things the motor has is a full bottom end, head, and cam.

Re: A20 Question....
 

WTH is a a20 and what are you putting it in to?

Re: A20 Question....
 

The A16A1 was a carburated 1.6 liter engine used in the 1982-1985 Honda Accords in North America and in some of the 1986-1989 Accords in the non-USDM market. (Wikipedia owns me :y ) I figured i could pick up an older accord from a junk yard or something for cheap. Now that I think of it... can't I just turbo it even if it is carbeurated, hell it might even be easier to tune. I really don't know ---- about carbeurated motors tho ???

Re: A20 Question....
 

haha

Re: A20 Question....
 

so return it back to school and give them some fee to accept it ;D.

OR

search for any old engines show and go ahead

Re: A20 Question....
 

actually i haven't picked up the engine yet. just wanted to get some opinions before I did... if i even do

Re: A20 Question....
 

ITS FREE! Pick it up. Research and find out what you can swap on to, into and out of. Find a blown chasis/shell on the cheap (Research) and build a cheap HMT setup you can rock till it blows, you get bored, or some rice clown offers you some cash to move on to your next project!

Re: A20 Question....
 

Yes you can swap the MPFI system on the carbed engine.

http://www.geocities.com/carotman/ho...conversion.htm

Re: A20 Question....
 

A20 old-school...solid iron block lovin' ;D

Re: A20 Question....
 

A series blocks want boost. Honda made them for HMT. Iron blocks FTW!

Re: A20 Question....
 

they work pretty good on boost. They tell me there are very very minor differences between a20a1 and a20a3 either should be fine for boost. You can put a fuel injected head and intake manifold on the a20a1 bottom end and itll be just fine. Youd be best off with the fuel injected head and a b16/b18 intake manifold and tb, the bottom bolts of the manifold flange line up with the head, you just need to redrill the top bolts and portmatch the head to it, the stock intakes are very restrictive

Re: A20 Question....
 

I have rebuild these engines and install them. If you are serious about this motor let me know I have tons exrta parts.

These engines are great in '86-'89 accord and preludes.

A20a1 carb. W/ 9.0:1 COMPRESSION
A20A3 EFI w/ 9.2:1 compression (the only difference in between motors piston dome ht.)

These motors are cast iron block w/ solid decks
But because the blocks are cast and the heads are aluminum the can have head gasket issues.

These engines are also 12 valve motors

If you want a good old school motor you are better w/ B20a5 from a late eightes prelude si
these engines have 16 valves and Dohc.
These are even to the relations b16, b18, b20z

hope this helps.
;D

Re: A20 Question....
 

a20 is much stronger bottom end than b20a5 and i havent had headgasket issues, going to headstuds will solve any headlifting/headgasket problems when you start pushing 15-20psi boost..

Re: A20 Question....
 

b20a5 is as backward crooked ass as my wang

Re: A20 Question....
 

And the b20a5 really has no relation what so-ever with other b-series motors :P Believe it or not, the A-series blocks are closer to matching up with a b16/18 head than a b20a5 is. :-\

Re: A20 Question....
 

wow guys thanks for all the help!! I'm pretty sure i'm goanna end up taking the motor, and hopefully turboing it >:D

Is there a way to keep the stock head and make it fuel injected?? I wanna spend as little as possible on this build and since the motor comes with the head installed I dont wanna have to buy one if i don't have too.

and what type of fuel management should i get (if any for 5 psi) I was thinkin either a chipped P06 (if possible) or pick up an Apexi controller for cheap off ebay...

Re: A20 Question....
 

ya all you need is the intake manifold.

the head are the even the cam! :S

Re: A20 Question....
 

the fuel injected cam is a little better than the carb cam (not too much really) but you might be able to use the carb head with the fuel injected intake manifold, i bet it will bolt up. The only problem is that the distributors are differernt from carb to fi and im not sure the studs are in the same location... prolly are but im not 100% sure of that. Converting to obd1 and running a p06 is an excellent idea, if you dont wanna do that an safc and btm with 450cc injectors should be fine. 5psi on this motor doesnt make a ton of power, youll get a smile on your face around 9-10psi, thats when you start making power. A T3 60/63 works great on this motor as well

Re: A20 Question....
 

well i'm pretty sure i'm goanna do it ;D 92CXyD, what parts do you have for this motor, b/c I still gotta piece it together before I can even think about doing a turbo build lol.

On that note actually, will I need a thicker headgasket?? and what about headstuds.. I know i'm goanna want ARP's but do they make em for the A20?

Re: A20 Question....
 

stock headgasket and stock compression are very boost friendly but yes, headstuds i would reccomend for over 15psi boost, but if youre just gonna run 10-12psi or somthing on a stock bottom end then id say just run the stockers.

Re: A20 Question....
 

I have intake manifold and injectors and if you need anything else I have connection.

I also have a complete spare longblock w/ new head gasket.

Re: A20 Question....
 

so I was thinking and i'm sure it's not goanan be easy to find a 89 accord, it's just to narrow of a search.... anyone know what els I could stuff this motor into easily??

Re: A20 Question....
 

Any 86-89 Accord LX-i or Se-i. They sell for dirt cheap and run forever. Those are the only fuel injected accord models.

I had one a few cars back. Fun cars, weak trannies. Mine blew, and it was stock, and I never even was hard on the tranny. The cars like to blow diffs, but since they are so cheap, no one cares. They probably just have weak diffs like the D series trannies that were probably based off of them.