looking to push about 450-500 to the wheels on Race gas, high boost out of a b18b lsvtec b16 head

is it necessary for me to bore it to 84mm and sleeve it, or will 81.5 mm be enough, block has to be sent to machine shop no matter what

basically will the block be strong enough to hold 500 hp with out sleeving it?

 

in my opinion, sleeving it to 83mm and boosting it would be good and reliable.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Rickdrizzle &raquo;</TD></TR><TR><TD CLASS="quote"> in my opinion, sleeving it to 83mm and boosting it would be good and reliable. </TD></TR></TABLE>


you know alot about motor building.

 

it's clearly my opinion, and may not be accurate.

edit: well, i realize that you do have a point, we should actually leave this to the uber turbo gurus

 

that power level is feasable on stock sleeves, but requires a very good tune. as the slightest mis-hap would most likely crack the sleeves. but it is done pretty regularly. and yes 450-500 can be done on stockish bore sizes no problem. for peace of mind, i'd sleeve it

 

sleeve it man. why go through the pain of putting a car/setup together just to rip it back apart when it inevitably blows and go through all the hassle a second time. Sleeve it and do it right the first time. Yeah 500whp has been done on stock sleeves,but they are all just ticking time bombs.

Not to mention that you could damage other internals and have to re-buy them after your stock sleeved motor blows. sleeve it man,dont half *** anything.

**And PS,if your sleeving it,definatly go 84mm. nothing lower,nothing higher.**

 

yea def 84mm dont know where 83mm came from

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by peakaboost &raquo;</TD></TR><TR><TD CLASS="quote">
**And PS,if your sleeving it,definatly go 84mm. nothing lower,nothing higher.**</TD></TR></TABLE>

Why you wouldnt go lower?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jksmith &raquo;</TD></TR><TR><TD CLASS="quote">yea def 84mm dont know where 83mm came from</TD></TR></TABLE>

 

sorry to jack your post, but for me is it worth it to sleeving my block, im only going for under 400hp. my bore size going be 81.5.

 

put it this way, sleeving is basically a 750+ dollar insurance card, dont have to worry about cracking a sleeve, i sleeve all my motors, no matter what im doing, just like knowing i have that insurance and peace of mind. yes that power is achievable with stock sleeves no problem, if your short on chash just run a stock sleeve, just get it tuned.

 

well i am def. going to have it tuned Hondata more than likely , and if i am going to sleeve it i might as well go to 84mm and just go all out...

 

84mm is good, thats the most common bore ppl choose, u can go 83mm if u wanted, have some more build "breathing room" DEPENDING on how bad the walls are, if u need a rebuild, onc eu u going 84mm u can go 84.5 for a refresh or different rebuild, but as i said depending if it just needs a hone or a complete bore cut, biggest u would wanna go is like 85mm, IMO at least, thats why i was saying u can go 83mm have some more room to go later if needed

 

stock sleeves at 81.5mm here making 437whp on 93 octane pump gas.... i love my ticking time bomb ... guess i'll see how long it last... lol

 

i would go 84mm.

the increased displacement will help out with a nice increase in spool and response, as well as reliability.

i can name a few times over the past 2 years that if i wasnt running aftermarket sleeves i would have blown my stock ones

 

I'm sorry, but reliability? WTF did that come from?

 

Actually I would be a lot more worried about the valvetrain than the sleeves.
If a sleeve crack there is usally no problems after it, just get another block and rebuild it(If a waterlock does not occure, depends on the damage) if the tune is good the only thing that happends are a premature wear of the cyl walls.

BUT, if a valve drop, you wil total your engine, meaning you can throw away, block, pistons, maybe rods, crank(IF the metal gets in to the crankase) Head, valves, and core, and possibly your turbine side og the turbo gets damaged if you are lucky enough.


So get your engine built proper with stock sleeves and the right parts and call Jeff Evans or Tony 1 for a tune(That is my advice)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by atec &raquo;</TD></TR><TR><TD CLASS="quote"> So get your engine built proper with stock sleeves and the right parts and call Jeff Evans or Tony 1 for a tune(That is my advice) </TD></TR></TABLE>


i have a b16 head already with crower valvetrain, itr cams, and stock cam gears on it now, and will have it all check PNP before im done....

where is Jeff and/or tony1 located?? im in Indianapolis

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">i would go 84mm.

the increased displacement will help out with a nice increase in spool and response, as well as reliability.

i can name a few times over the past 2 years that if i wasnt running aftermarket sleeves i would have blown my stock ones</TD></TR></TABLE>

This is true, however, a COMPLETE change of displacement including bore AND stroke will reap more benefits that just the bore alone.

The reason why 84mm is a nice number outside of 81mm or 81.5 is simply due to the availability of headgasket replacement, or allowing 84.5mm. If I plan on sleeving a block, I guess I look at those factors as well, in case something goes wrong. My other integra is only 81mm sleeved, and honestly, couldn't be happier. Quicker response, faster piston speed, in conjunction w/ an uprated final drive, works wonders.

 

an increased displacement will not help with reliability

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TheShodan &raquo;</TD></TR><TR><TD CLASS="quote">

This is true, however, a COMPLETE change of displacement including bore AND stroke will reap more benefits that just the bore alone.
.</TD></TR></TABLE>

right, which is why im running an ls crank in the gsr block. 84x89mm vtec.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bamf3000 &raquo;</TD></TR><TR><TD CLASS="quote">I'm sorry, but reliability? WTF did that come from?</TD></TR></TABLE>

ive had a few overboosts and other random **** happen over the time ive been running a sleeved block that i am very certain would have destroyed stock sleeves

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">ive had a few overboosts and other random **** happen over the time ive been running a sleeved block that i am very certain would have destroyed stock sleeves</TD></TR></TABLE>

on which one of your 12sec cars did this happen on again ?? lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by blackeg &raquo;</TD></TR><TR><TD CLASS="quote">

right, which is why im running an ls crank in the gsr block. 84x89mm vtec.


ive had a few overboosts and other random **** happen over the time ive been running a sleeved block that i am very certain would have destroyed stock sleeves</TD></TR></TABLE>

The way it was worded it sounded like you were saying that running 84mm vs 81.5mm would make it more reliable lol.

I agree with you about it being more reliable b/c it is sleeved