hooptie157

Hey Guys,

As some of you already know I'm on the search for a new S2000 engine. I'm coming across a lot of different engine codes and I want to know which is which and which is best for what (that kinda confused me right there, lol)

Anyway, below is what I've gather in terms of the 9K RPM 2.0 liter engines:

F20C - JDM S2000 engine - 250hp higher compression then USDM motor
F20C1 - USDM S2000 engine -240hp
F20 - not sure. I've seen people post F20 but I wasn't sure if it was JDM or not

Now I'm I might want to supercharge my car in the future and was worried about the higher compression of the F20C engine in terms are how the Comptech/Vortech/SOS supercharges were originally designed to work with. Is the higher compression a result of pistons or a simple head gasket with I can replace myself?

I also worry about the valve spring problem which actually destroyed the current engine in the car (something like it fell in a piston). Is the JDM engine less prone to this malfunction and is there any preventive measure I can take to avoid it? (like a new valve train)

Finally my other option is the F22C engine (I think thats the USDM code). I hear its more reliable although it doesn't rev as high, to some isn't as fun, and is more expensive. But if its a better engine overall I might just go with that.

Please give me your thoughts and opinions, thanks.

Brian

CKit

The "valve spring problem" only occurs in the setting of a mechanical human error.

hooptie157

So as long as their is no "human error" all engines are equally reliable? What if I get a used engine and there was a "human error" such as a money shit that happened and loosed the spring is there a chance for it to fail later in the engines life? If so does that happen to all engines? and if so how do I prevent it?

blkwidow

^ There is a risk with all used parts, including engines.

hooptie157

would replacing the valve train (springs and retainers) upon receipt of the engine with OEM parts be my best bet?

9KRDLIN

f20b-accord motor, not compatible (h22 derivative)
f20c- jdm version of f20c1
f20c1- see above
f22c-jdm version of f22c1
f22c1-see above

ls7, what you should put in there

drewmob

^Agreed. My '00 has 96k on it, 1/3 of which were logged prior to me owning the car. For peace of mind (and in preparation for FI) I installed new retainers and banjo bolts last weekend. These modifications are difficult and should only be attempted by those who are very mechanically inclined.

Luckily I didn't find any cracked retainers, but I did find rocker assembly damage. I'll post another thread on that when I get a chance...

I highly recommend a thorough inspection of any motor you consider purchasing by a qualified technician. There are multiple areas for potential damage in the f20 such as crank walk, bore scrapes from starvation/spark plugs, cracked retainers, etc... If you're serious about FI go ahead and replace retainers and banjo bolts before you install the new motor. The springs do not need to be replaced. It will save you a lot of hassle later.

hooptie157

would the Ls7 cost the same to install the S2k motor or do I need a crazy expensive subframe or mounting kit?

hooptie157

Whoah thanks...

I was considering purchasing the engine through JDM engines however I don't think they would like me take one apart before they sell it to me.

hmmm... this is gonna be tough and a huge gamble.

drewmob

No, you don't wanna mess with an ls7 unless you have deep pockets. Currently I know of one LS2K in existence, and its here in GA.

I wouldn't necessarily go with the jdm engine. Btw, anywhere you buy from should have a 30-day return policy. You should really only need to remove the valve cover and oil pan for a visual inspection and perform a leak-down test. I also don't know if there are any compatibility issues with the jdm's sensors, etc. but I'd guess there is. Also, I wouldn't get the higher-compression engine if you're considering FI. The 10 hp isn't worth the hassle down the road.