Yeah im Getting A crx in a month or Two. and im going to swap out the engine. and im not 100% sure what kind of engine i want. do any of you guys have any choices for me?

 

type r baby!!!!!!

 

It really depends on what you are looking for, what you can afford, and whether or not you would like to stay NA (naturally aspirated) Tune or go for boost/NOS.

D series: best not to turbo them since they are a relatively high compression engine (you can use eagle/Grand Vitara pistons (same 75mm bore) to lower the compression if you really want to turbo charge your car). They are a great, light engine: easy to tune and easy to blow.

B (integra) or H (prelude) series: These engines are DOHC, which contrasts the SOHC D series engine. So you can modulate timing for overlap and more high end horsepower by retarding the timing a bit. These engines are much stronger and thus perform well under boosted conditions, but they do cost more (2-3k).

F series: These are accord engines. You can get a lot of power from these (DOHC or SOHC) engines by running either high compression cams or boost, but since they are not tuned as frequently, parts are more difficult to come by.

K series: These OBD2B engines are what Honda currently uses. They won engine of the year in 2004 (i think) and are truly badass. The downside is that these engines cost an arm and a leg and getting one to fit and run well in an EF will take a lot of time. There are plenty of build threads for K series CRX's (and all other motors for that fact) so search and learn. good luck.

 

If I have any incorrectly posted information, please feel free to correct my mistakes.

 

I have to disagree with your statement that D series are easy to blow and aren't a good platform for boost. Many people make 200WHP on a bone stock block d16 and do so for years as long as they are sensible.

 

Dude ****ing V8 man, did you ever here of the search button? This thread comes across 3 times a week.

 

Sensibility is not that common though. lol. I am not dissing on the D, just saying that they're not quite as durable as some other engines. In fact, I have a D in my CRX Si and I absolutely love it.

 

user name :facepalm: thread title first post

You're off to a great start.

 

I don't know what planet you live on but have you ever been to a junkyard?

 

Explain...?

 

You said F-series parts are hard to come by. Everytime I go to junkyard there is no less then 5,382 F-series motors just baking in the sun.

But now that I reread your post I'm thinking that you might have been referring to aftermarket support. If so I apologize for insinuating you lived under a rock and instead poke fun of you for not making your point clear and in turn making me look a fool.

 

No harm, no foul. I didn't take it offensively. And yes, if I wasn't clear enough beforehand, I was referring to aftermarket, performance parts. lol. Because, like you said, OEM parts ARE a dime a dozen. Sorry about the prior confusion.

 

D series are fine motors to boost. Full-Race has a bone stock d16z6 running 400 whp on just ARP headstuds. Also D series don't have high compression it's like 9.6 to 1. I have a boosted stock b16 that has 10.6:1 compression and its great. Higher static compression just means you have less room for error when tuning the car as the pistons come up higher due to the dome design.

To the OP: Like stated before, depends on what you want to do with the car, each series of motors has their ups and downs. The main thing you have to take into consideration if you are boosted an EF, space is limited.

Is there any particular reason why you plan on swapping out the motor or are you just jumping on the bandwagon? Also depending on what model CRX you are getting you may have to convert it from Dual Point Fuel Injection (2 injectors) to Multi Port Fuel Injection ( 4 injectors), however this only applies to the DX model in a CRX.

 

^^^beat me to it^^^

d's are good for boost because they are low compression motors(relatively speaking), readily available, and prob the cheapest honda motor out there. But they are not quite as robust as a B,H,or K

 

This is exactly what i was referring to about D series. Their durability, not the feasibility of boosting the motor. It's a very capable motor and I understand that.

 

Two things...what's your budget and what do you want to do with it?

 

Why anyone responds to these threads is beyond me...

The information for every engine mentioned here is widely available on this site.
Here's an idea: do some research and make the decision for yourself.

It's like asking everyone what their favourite colour is, everyone will have a different preference but there will always be someone dumb enough to choose pink...

 

b20 then swap out the head for a vtec one

 

Keep the engine that goes in it. Learn from the beginning, if its Dual Point FI do the MPFI swap, get to know the potential of the car. Do it all and just keep going steps up, it will be easier and you will love your car even more the better and better it gets.