What are your opinions on a supercharged or turboed b20z2 in a 1998 honda civic hatchback.

 

What is it you are looking for with this post?

Its left open ended for any and everyone around to comment how this thread is BS.

Please edit the first post with more detail.
Are you asking because you have a B20Z2 in your '98 hatch.
Your expectations for power, for reliability. What is your budget.. more details encourage a better more informative response from the Honda Tech community.

 

I'm currently building the engine up. We're going to port the head and hone out the block. Currently in the car we have a B20b motor with Ls intake and a Ls computer. Power wise we just want a strong engine that can also run as a daily driver. We're on the fence about adding the extra oomph with a supercharger or a turbo. If we went with a turbo we would just run a 5lb boost. For budget its about max $3,000. I was just curious on what would be a better fit, I heard people like superchargers because they have less maintence but consumes more gas than a Turbo.
Thanks for the quick reply and advice on posting

 

So you're going to take already thin sleeves, hone them out even more to make them even thinner, and then increase cylinder pressures dramatically with boost? Did you actually think this through? While we're at it, let's go ahead and take a stab at a few more of your misconceptions. PSI doesn't mean dick. It doesn't matter how many "lb boost" you want to run. What matters is power goals.

That being said, a supercharger takes power to make power. A turbocharger uses exhaust pressure to create power. Small motors are already lacking in power enough - I always chuckle at people who supercharge D and B series engines. The only real benefit that superchargers have over turbos is the low end power, but with a properly built 1.8 or 2 liter motor, that low end power shouldn't be a problem.

Now go read and learn. All of this information is easily found in the FAQ stickies, either here, or in the FI section.

 

Always go turbo...

 

But never go full retard.

 

Or twin charge it and get the best of both worlds!

 

You better have one hell of an intercooler after the supercharger...

 

I wish this guy had more videos:



He ended up going to the Miata world.

 

 

B20 sleeves are actually thicker than B18 sleeves. Since we are discussing misconceptions and all....

 

I'm fairly certain that they are not thicker between the cylinders, where B20 blocks are prone to crack.

 

That could be the case. Almost everyone thinks a B20 is a bored out B18 with thin sleeves. I have no experience with B20's so Im really just talking out of my *** anyways.

 

 

B20's Have noticeably thinner sleeves between cylinders I am not sure on the specifics but I had a B20 block and it looked way to thin for any type of boost very minimal amount of material between cylinders.

 

On a non-vtec setup a SC (roots style) would only produce about an extra 50hp or so. Nice for daily driving, but not very fast (not fast if you have been in a "fast" honda before)

I would suggest turbo if you want to go fast, quickly.

 

The main weakness of the B20 sleeves is their Siamese design.

Where all other B series blocks have individual iron liners the B20 liners are one piece. Plus the larger 84mm bore means there's very little liner material left which relies on the outer aluminum "jacket" to support the sleeves. This combination is why B20s are very prone to cracking sleeves.