tobe1424

im here brainstorming on wheather i should fully build a b18b1 or a d16y8...one is vtec the other is non vtec...one has torque the other one doesnt...one is dohc other is sohc...one is cheaper than the other...so guys help me out here...will i create more power on lets say 12 psi...what motor will do better numbers and what will be easier and more reliable...thanks

bdavis

are you really ******* serious??

look in the upper right hand corner and all your questions will be answered

B00STFREAKS

B18b turbo is the way to go...

More Displacement, More torque...

RyanEJ8

D16 + boost =

.dave

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">D16 + boost = </TD></TR></TABLE>

B18 + boost &gt; D16 + boost

(I own a boosted D16 too )

VTC_CiViC

No question, discplacement ownZ all.

303whp stock bottom B18B &gt; 217whp stock bottom D16Y

nonvtecD

This is a joke right? I mean yeah sohcs are cheap and all but if given a choice who would ever choose a D over a B?

RyanEJ8

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

B18 + boost &gt; D16 + boost

(I own a boosted D16 too )</TD></TR></TABLE>

It really depends which one is better.

D16 advantages:
Cheaper
Lighter
Less fricitional losses and rotational mass
Valve angles allow for more radical lift cams

B18 advantages:
Slightly more displacement
Independant adjustment of intake and exhaust cam timing

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD &raquo;</TD></TR><TR><TD CLASS="quote">This is a joke right? I mean yeah sohcs are cheap and all but if given a choice who would ever choose a D over a B?</TD></TR></TABLE>

Me.

VTC_CiViC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">

It really depends which one is better.

D16 advantages:
Cheaper
Lighter
Less fricitional losses and rotational mass
Valve angles allow for more radical lift cams

B18 advantages:
Slightly more displacement</TD></TR></TABLE>

Ahhem, define 'slightly'? 1590cc vs. 1834cc seems like a pretty nice chunk of real estate comparitivley.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">
Independant adjustment of intake and exhaust cam timing

</TD></TR></TABLE>

You forgot:

TORQUE
TORQUE
TORQUE


All things <U>equal</U>, you will ALWAYS make more power with an LS vs. a D16. And considering I've seen LS's for as little as $100 for a full longblock (like the one under the hood of my Integra now), the price advantage isn't quite today what it was maybe 2 years ago.

Another couple advantages of the LS which is just naitive to B-series, equal length axels , and a useable variety of tranny selections (GSR, B16 etc..).

nickromeo

no one seems to mention that ANY b series revs better than a d16, including b18b,

nickromeo

if u are going for the most whp possible on pump gas, and still want to retain streetability but dont mind swapping engines, b18b is the way to go.

im staying d16 in my car just for the sake of having a turbo-sohc. lol, if u want to go fast on a budget and still dont mind swapping engines, b18b will make alot more hp, built or unbuilt.

VTC_CiViC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nickromeo &raquo;</TD></TR><TR><TD CLASS="quote">no one seems to mention that ANY b series revs better than a d16, including b18b,</TD></TR></TABLE>

Not quite. Stock D16Z6 has an OEM red line of 7200rpm, even the Y8 has a 6950rpm limit. Stock B18A/B had only a 67 or 6800rpm redline. And if you'd ever really paid attention to the rocker setup on an LS, you'd prolly be scared to rev one high too!

RyanEJ8

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

Ahhem, define 'slightly'? 1590cc vs. 1834cc seems like a pretty nice chunk of real estate comparitivley.


</TD></TR></TABLE>

244cc isn't ****. You should know that, you own both a Honda and Trans Am WS6.

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

TORQUE
TORQUE
TORQUE


All things <U>equal</U>, you will ALWAYS make more power with an LS vs. a D16. And considering I've seen LS's for as little as $100 for a full longblock (like the one under the hood of my Integra now), the price advantage isn't quite today what it was maybe 2 years ago.

Another couple advantages of the LS which is just naitive to B-series, equal length axels , and a useable variety of tranny selections (GSR, B16 etc..).</TD></TR></TABLE>

You can get equal length axels for a D Series, I believe it's the ZC axels that you can use, but I could be wrong on that. Also in the world of forced induction with all things being equal both engines will have close to the same potential. For example an SC50 is good for a maximum of about 400whp whether it's on a B18 or a D16.

SOHCD16y8

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

Not quite. Stock D16Z6 has an OEM red line of 7200rpm, even the Y8 has a 6950rpm limit. Stock B18A/B had only a 67 or 6800rpm redline. And if you'd ever really paid attention to the rocker setup on an LS, you'd prolly be scared to rev one high too! </TD></TR></TABLE>
My y8 went 7200, and my current B18b also goes 7200. And no im not afraid to rev it that high.

sporty240

B00stfreak nice avatar, um b18 would probably be more reliable too (bigger rods)

VTC_CiViC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">

244cc isn't ****. You should know that, you own both a Honda and Trans Am WS6.
</TD></TR></TABLE>

That's a rather silly contrast. The key here is RELATIVITY. 244cc means alot when you're comparing engines this small, infact we're talking about what.. an aprox. 20% increase in displcement from a D16? You don't think 20% more air and 20% more fuel mean something?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">
Also in the world of forced induction with all things being equal both engines will have close to the same potential. For example an SC50 is good for a maximum of about 400whp whether it's on a B18 or a D16.
</TD></TR></TABLE>

The issue here is boost pressure. I have no issues with pushing a stock B18B to 15psi and see 300+whp, but you and I both know that even with the same setup, a D16 will need ALOT more air to see 300whp in stock form (if it'll even get there), so no.. it's NOT equal at all.

Like I said, all things equal, the B-series is the power maker, period.

VTC_CiViC

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHCD16y8 &raquo;</TD></TR><TR><TD CLASS="quote">
My y8 went 7200, and my current B18b also goes 7200. </TD></TR></TABLE>
Not sure where you're going with this?

My Y8 went to 8500 (accidently of course, but it did see ~8k multiple times and still runs today), that's not the point. Somebody said the D16's don't rev as high, and I simply pointed out that even in OEM trim there are SOHC's that rev higher than the LS.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">And no im not afraid to rev it that high.</TD></TR></TABLE>

Ever had an LS rocker literally 'fly' off the valve? I did..

BrokeAssWhiteboy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">

244cc isn't ****. You should know that, you own both a Honda and Trans Am WS6.
</TD></TR></TABLE> tell that to anybody that went from a 1.8L to a 2.0L and you will probably get laughed at


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD &raquo;</TD></TR><TR><TD CLASS="quote">This is a joke right? I mean yeah sohcs are cheap and all but if given a choice who would ever choose a D over a B?</TD></TR></TABLE>hahahahahaha

thats going in the sig

blackeg

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

B18 + boost &gt; D16 + boost

(I own a boosted D16 too )</TD></TR></TABLE>


same here. 7psi on my ls was very noticeable difference than 7 psi on my z6, not to mention you can make close to 100whp more on a stock ls safely than you can a d16.

i revved both to 7500. i was not going any higher on the ls, i would on the z6, but it wouldnt matter unless i was continuing to make power up there

turboeg77

i love D's but if you want to make big power b18 is the way to go.

platinum00

why is everyone talking about rev limits.

he said he is fully building either motor. both motors can rev 9k + with built heads.

if this is your 1st build, i would pick the SOHC, like you said its cheaper. if you blow something up, not such a dent in the wallet.

what are your power goals. 300, 400, 500 whp ? both motors fully built will get you there.

platinum.

nickromeo

I STAND CORRECTED ON THE REV THINGY,

i only considered geometry, not valvetrain.

nonvtecD

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nonvtecD &raquo;</TD></TR><TR><TD CLASS="quote">This is a joke right? I mean yeah sohcs are cheap and all but if given a choice who would ever choose a D over a B?</TD></TR></TABLE>

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">Me.</TD></TR></TABLE>

Don't get me wrong, I love D motors. I'll probably keep screwing with them for a couple more years at least. Bottom line, B series motors have more potential and are just downright stronger (stock) and are going to hold up to boost better...

tobe1424

well im aiming somewhere between 300 and 400...well yes i know a b18 has more displacement than a d16 but one has vtec.. vtec helps u alot top end but then displacement and an extra cam will also...and one other thing...i know for a fact that a stock ls sleeve will hold 400 hp but a d16 ima have to buy a sleeved block..i know a couple of ppl that have blown stock sleeves on d16 at those numbers....so basically i just wanna know whats a better deal..come on factory ratings say that d16 is rate at 127 and b18 @ 142...and boost will help out vtec alot so i would think it would over come the ls in the long run..but then again ls ive heard is an awesome engine to build...

Sketch_hs

LS/Vtec