b20 vtec build need ?s answered

[~b20-vtec~]

So heres the deal... Im in the process of building a b20 vtec. I have the b20b bottom end, with a b16a head out of a 99 civic si with skunk2 titanium retaners,springs, ect. and Type R cams, I also have a full MSD Ignition, AEM high volume fuel rail, with AEM regulator, sitting on a Skunk2 Pro Intake. With AEM V2 cold air intake. I have a full GReedy exhaust 2.5 all the way with flow through cat., Vtec water pump and oil pump, High output radiator fan and race motor mounts. Also a CompClutch stage3... Anyway here are my questions...

1) What size injectors should i go with 310, 390, or 450?
(im not running turbo at this time, i wanna break the motor in for a bit)

2) Do i need to sleve my block?

Thats it for my questions now...

[DrivinVtec]

Originally Posted by ~b20-vtec~

So heres the deal... Im in the process of building a b20 vtec. I have the b20b bottom end, with a b16a head out of a 99 civic si with skunk2 titanium retaners,springs, ect. and Type R cams, I also have a full MSD Ignition, AEM high volume fuel rail, with AEM regulator, sitting on a Skunk2 Pro Intake. With AEM V2 cold air intake. I have a full GReedy exhaust 2.5 all the way with flow through cat., Vtec water pump and oil pump, High output radiator fan and race motor mounts. Also a CompClutch stage3... Anyway here are my questions...

1) What size injectors should i go with 310, 390, or 450?
(im not running turbo at this time, i wanna break the motor in for a bit)

2) Do i need to sleve my block?

Thats it for my questions now...

well if your gunna go turbo down the road i would get bigger Fuel I. if not get some 310. they will work fine. do u need to sleeve your block? this is going back to boost question. all motor..u wont have to ..get a black gagurd..youll be ok. ive seen people run b20T's with no prob. pretty fucking fast. but a safer route would be yes, sleeve your block if your gunna boost.

[~b20-vtec~]

Thanks for the info on the sleveing, but whats gagurd???? are you talking about a girdle for the block?

[DrivinVtec]

doesnt the girdle on the crank? the block gaurd goes on the out side of the cylr. walls.


www.google.com

block gaurd.


youll see it.

[IISaiNtII]

the b20 will not last under boost. end of story. some people have no problems with them for awhile, but eventually, everyones sleeves fail and crack.

boost and crvtec dont mix well. the best you can hope for is to sleeve the block now, post the sleeves (if you don't know what posting is, go to www.endyn.com block gaurds are terrible burdens on the coolant flow, and don't support the sleeve where it really needs it) and go light on the boost. the slightest detonation could cause these cylinder walls to crack because they are a 1 piece.