dev203d

I have a B20VTEC, mostly stock, ARP head studs and what not, but other than that stock with an air intake. I am having a turbo professionally installed. Probably running 6-7psi daily driving, with maybe a 10-12psi for performance driving changed using a Hondata S300. At this are there any problems that I can be anticipating, I want to keep it daily driven so I don't want Piston or cam upgrades to hurt gas MPG, I know the B20 walls are thing, what do u recommend? Sleeving the block?, I am not sure what that is, but the term is thrown around a lot.

P.S.I Garage

Get a really good tune before you boost that motor. Sleeving the motor is basically having your old cylinder walls machined out, and have iron sleeves pressed into the block. This makes the walls stronger and able to accept more boost. But none of that matters without tuning. Do more research on turbo motors before you go any further with your build. Good luck

HiProfile

BOOM!

After seeing the same B20/V block compete in 4-5 years of drag racing at over 265whp (I think 278whp now), I'm inclinded to say the B20 sleeves aren't that bad. The extra load on them will make them weaker, as will the reduced thickness and siamesed nature of them.

Sleeving will cost ~$1000, which is probably not part of your budget. IMO it would be better to grab a b18a/b core, have it sleeved, and run the b20 in the mean time. If you happen to blow it up, you can always build an 84mm monter.

DRIVENRacing

all in the tune, ive seen some go for years over 300whp... go for it

CRX T-Si

The only danger is a bad tune/tuner but it's safe so don't let others tell you otherwise.

dev203d

Thanks a lot guys, yea I'm getting a good tune, but there's a lot of haters out there saying it'll blow ASAP, yea sleeving is def not in the budget, but I was thinking low compression with some forged pistons/rods but who knows, we'll see where it goes.

lakai_19

i had a stock b20vtec only had arp headstuds ran it at 284whp and beat it pritty bad and was perfect till the day i took it out to build for more power

HiProfile

Given the nature of b20 sleeves, I'd just leave it stock. You won't raise your power limit by much with forged internals, and you can save that money for sleeving a different block later, or building a b18.

dev203d

What do you mean build it for more power? Like boosting it, or changing the internals?

Alanicious

iTrader: (1)

from what i was told by one of my automotive teachers, the guy who does all the sleeving for darton will only do sleeving for race only applications on a b20 block. he said it's common for aftermarket sleeves to leak on the b20 application because of the way the stock sleeves sits in the block. it's not the same as the LS block.

BADGUYNY

iTrader: (1)

I had a stock internal B20v daily running 10psi... I beat the crap out of that motor I recently pulled the motor to put in my built motor sleeves were just fine. Its in the tune get a good tune and there shouldnt be any problems

ls_on_boost

iTrader: (5)

this should help you out
http://floridahondaclassifieds.com/t...eves-take.html

dev203d

This makes me feel much better, I won't be anywhere near 28 PSI lol thanks a lot!

ls_on_boost

iTrader: (5)

lol

boosted91crx

i would sell the b20 and get a stock b18c1 , a bone stock GSR can run at 300 WHP all day long year in and year out.

dev203d

Yeah but I don't have that much money to spend, plus I like the B20 low end torque, the VTEC conversion somewhat compensates for the loss of high end power and the turbo will kick that up as well, turbo at 4RPM and VTEC at 6RPM wow LOL!