b20 vs ls vtec turbo

[john43]

I am debating which block to buy, but I will put a vtec head on either because my h22 makes non vtec just no fun. Without sleeving the block, how much boost could each block handle? How much after sleeving? If I did send away for sleeving, what bore should I be looking for to turbo?

 

[Luis998]

Your H22 is non-vtec? Are you sure you are not talking about an H23 or am I just on crack? Stock engines can usually handle up to 8psi but concentrate more on your TUNE than just a psi number. Tuning is what will help your engine not blow up. Best of luck to you.

 

[get_nick]

what engine do you have now?

what engine do you want?

 

[Matts96HB]

You'll want to stay below 350whp on both of those engines provided they have a decent piston/rod combo. Stock sleeves won't handle much more than that with the common person tuning the car.

 

[Briansol]

ls block is stringer than the b20. if you're not planning to sleeve, the ls is the better choice.

 

[john43]

No I said I will never be without vtec because of my h22. I have an h22 in my civic and I am building a del sol. So if I was to go the sleeving route, would the b20 be a better option due to more displacement. Also, does anyone know of a good tuner in Ontario? preferably north of Toronto.

 

[Briansol]

if you're sleeving, it doesn't really matter what block you pick. they'll end up being the same

 

[john43]

that's what I figured, because I can just specify to bore to 84mm on the b18 block, resulting in the same displacement. how reliable would be b18 be at 350whp with a good tune(unsleeved)? If I do go with that hp, what all would I need to replace in the engine? how long will the engine last? and again if you know of any good shops in Ontario...

 

[Matts96HB]

There is not a set time that the engine will last. It depends on how you drive it, how well its tuned, the parts used, etc. There's a ton of variables.

 

[john43]

ya I guess that was kinda a dumb question. it should be fairly reliable though eh? I know a couple guys that boosted their civics, not sure what all they had done but they only lasted 3 summers.

 

[Matts96HB]

They will never last as long as a stock Honda engine. That's just a proven fact. Honda builds these engines so precisely from the factory it is absolutely insane.

But yes, the engine can still be reliable while turbocharged. Personally I have a turnkey 350+whp EJ6 that I built myself