K20a engine

[ellie123]

i have a 2002 dc5 typer and my engine died. so i need to buy a new one. i was just wondering are all k20a engines jap spec?? obviously the type r here in sydney come with a k20a2 engine. would a k20a engine fit in my car without changing gear box etc... and does anybody kno where i can buy a good engine from

[DakDak]

How did your engine die? Are you able to rebuild?

K20A is the JDM engine.
K20A2 is the AUDM and many other market versions e.g Also USDM

So if it is a K20A it would be a straight fit. You will need an aftermarket or the JDM ecu too though. Then you'll need your immobiliser re-sync.

IMO JDM K20A is over-priced and the only real benefit I see out of it is hard-parking credibility.
Build a K20a and K20a2 with same aftermaket parts e.g camshafts etc. Power output will be similar if not minimally different.

Waste of money, if your after power. Go K24 block with K20a head.

[ellie123]

even if i did go with k24 block and k20a head will wouldnt i still have to tune it ?

[curtis265]

yes... but he's saying that if you're building for power it's a waste of time to spend all that time tuning a JDM engine when you can have a frankenstein instead

[ellie123]

ye i think ill just go buy a k20a2 but fuk there $4500 everywhere!

[DakDak]

even if i did go with k24 block and k20a head will wouldnt i still have to tune it ?


ye i think ill just go buy a k20a2 but fuk there $4500 everywhere!

Can your head be salvaged? You can use a K20A3 bottom end from a base model to a K20A2 head. Another option. K20A3's wont demand such a steep price.
http://www.ephatch.com/forum/showthread.php?61778-K20a3-block-k20a2-head
http://forums.clubrsx.com/showthread.php?t=789181
http://www.google.com.au/search?hl=en&source=hp&q=k20a3+block+k20a2+head&gbv=2&oq=k20a3+block+k20a2+head&aq=f&aqi=g-b1&aql=&gs_l=hp.3..0i8.1359.7469.0.7578.22.17.0.0.0.0.250. 2424.0j1j10.11.0...0.0.hQZdSt_zxs0


yes... but he's saying that if you're building for power it's a waste of time to spend all that time tuning a JDM engine when you can have a frankenstein instead

Thanks alot mate!.
OP seems to just want to get it back on the road

[ellie123]

if i went with wat ur saying would this give me the same kws as a full k20a2

[DakDak]

Dont see why not. Maybe if not same wont be too far off. Displacement is still 2.0 with the all-important hi flowing K20A2 head. [Provided that is still in good order]

Read the threads. There are alot of myths regarding this that will be dispelled e.g unreliabiltiy at high revs, blowing the engine, turns out the guy who did this didnt put any coolant in hence the catastrophic failure. If you want to go down this route.

I dont see a K20A3 engine costing anymore than $1500 and thats on the expensive side.
with the cash you save you can do mods and be even faster than a stock K20A2

Read the threads I got for you.

K20/24 - Expensive, but highest yield of power
Straight K24 - Relatively cheap. I'm running one. Pretty good.
K20A2 - $4500 out of pocket and you are right where you started
K20A2/A3 - Cheapest option, to get it running. Cant say if it will be fast or slow never done one or seen it. yanks with Ep3's do it all the time.

[GSi_PSi]

K20A3 Block has weak rods, lower compression ratio , no oil jets, no stock oil cooler, weaker crankshaft..

If you want a weaker, lower output motor go for it.

This would be exellent excuse for a K20/K24 build

[DakDak]

K20A3 Block has weak rods, lower compression ratio , no oil jets, no stock oil cooler, weaker crankshaft..

If you want a weaker, lower output motor go for it.

This would be exellent excuse for a K20/K24 build

^ There you go. I didnt know that. Weaker rods, lower comp pistons and crank. oil squirters look like the primary difference.

[45SET]

K24 and k-pro for less effort. You can pick up a low k's K24 for less then $2k now days.

[ellie123]

so wat else would i have to do if i went with k24block and k20a2 head ??

[ellie123]

k pro and would i have to change anything else

[curtis265]

you've got some googling to do moite

[DakDak]

k pro and would i have to change anything else

Off the top of my head

K series chain tensioner. And various other parts
Hasport engine mounts. I recommend 62A from experience.

Change your clutch if you can. Not necessary. But car will feel alot better.
K-PRO with tune
Obviously I/H/E before the tune if you have the budget.

What is your budget anyway?

[ellie123]

are u telling me i would have to do all that to get the same power as i would with a full k20a2 engine ? i already have aem v2 and a new clutch not looking to put exhaust or anything. would a k24 block and a2 head + k pro tune get me the same power as a full k20a2. coz im gonna be paying $4500 for a new engine

[DakDak]

Mate.......... K20\24 will decimate any k20. All the big power k series cars are frank. are you even trying to comprehend the info I'm giving you?

[EG30]

Is your K20a head still in good shape? ie any idea what went wrong with your engine?

If head is rooted as well and your engine is basically throw away without many valuable salvagable parts bar the rocker cover; your best bet is to buy say a jdm k20a mech front cut kit from wreckers and fit that, run the stock ecu supplied and sell off the gearbox, loom, driveshafts, brakes if present to offset your say $7-8k outlay for the mech front cut kit.

If your head is undamaged and only the bottom end seized/grenaded; consider bolting on a k24 bottom end and tune with Hondata Kpro. K24 blocks are widely avail and cheap compared to K20a2 and found in CRV and Accords so plenty around. Many items need to be modded, removed, added etc for this combo to work of course.

Contact Benson or Fatboyz from BYP in this forum for more info I'd say; they have done so so many of the above in various state of tune and budget. In fact a fren of mine is getting a K24 block installed onto his existing K20a2 head right now.

[GSi_PSi]

You would need the K24 CRV Side Mount
I would upgrade to - K20 Oil Pump, 50 degree VTC gear, K20 Oil Cooler (or run external one)

[ellie123]

I just wanna no if I do this + kpro tune would this get me more kilowatts then a normal k20a2 and how much would this all cost roughly

[curtis265]

of course it would

there's no replacement for displacement

[ellie123]

Would I have to change the gearbox and shit. How much would this cost me

[chargeR]

Would I have to change the gearbox and shit. How much would this cost me

Nup, the K24 will bolt straight up to the DC5R box.


You would need the K24 CRV Side Mount
I would upgrade to - K20 Oil Pump, 50 degree VTC gear, K20 Oil Cooler (or run external one)

Good info, but the K20 oil cooler isn't necessary if the thread starter gets a K24A3 from an Accord Euro, they are already fitted with one.

[EG30]

I just wanna no if I do this + kpro tune would this get me more kilowatts then a normal k20a2 and how much would this all cost roughly

175kw atw we are expecting for my fren's build with byp, oe cast pistons and his existing k20a2 head. Torque will be lot more than before of course being 2.4L

With prices you need to contact them as there are too many variables ie state of tune and the components you want to specify etc.

Gearbox remains the same as before and no mod required ie bolts straight on.

[ellie123]

theres alot of shit i would have to do which will end up costing more.. wat if i put a k20z1 it fits straight in. is this pointless??

[curtis265]

there's no such thing as pointless, you need a new engine don't you?

[ellie123]

ye i do wats better?

[GSi_PSi]

jdm d15b

[Japs2k]

Or if u want, let me no i have a fully built d16y.D2K adapter plate and all.

[ellie123]

its all good thanks mate. wat u think about the z1

[Vvvtec]

pics of op

go k24 and kpro nuffsaid

[ellie123]

i dont no srsly

[Indie]

Loving both these threads. It's almost as if they're doing the job that would normally be done by a single thread with a well-written question...

[HauLe_]

k20/k24 as everyone else has said. a normal k20a2 can run about 135kw atw (roughly) with a few bolt on mods (rbc, tb and of course i/h/e) and kpro. if youre worried about the price i say get a k24a3, you can pick them up for roughly $800 nowadays but you will still need a kpro. google it and see what you come up with. SEARCHING IS YOUR BEST FRIEND