I found an Si motor for a really good deal and I want to jump on it because my car is mad at me because it doesn't have a new motor yet, lol, but the only problem I have with it is how do I get more torque out of a B16, will boring it out help and if so how much????

 

SEARCH man..thers tons of stuff out there to see including different build-ups and torque#'s..and building a motor isnt cheap

adaM

 

i dont think torque and b16 belong in the same sentence unless you use forced induction or bore it or stroke it, it is very hard to gain torque in the b16 and if your looking for torque then you've choosen the wrong motor.

If you want to bore it then i say u stick to a 82mm bore maximum althought some here say 81.5 is the max u can bore on stock sleeves, if you want to bore out tho , it is best to resleeve the engine then shoot for the wider bore, but the stroke is so small on b16 i think it only makes it close to a 1.8L

 

If you want more torque, just downshift a gear or two

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Lsos &raquo;</TD></TR><TR><TD CLASS="quote">If you want more torque, just downshift a gear or two </TD></TR></TABLE>
hahaha. good answer. compression will give u better torque numbers, but upping the displacement will give u more

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by akaEsCo01 &raquo;</TD></TR><TR><TD CLASS="quote">I found an Si motor for a really good deal and I want to jump on it because my car is mad at me because it doesn't have a new motor yet, lol, but the only problem I have with it is how do I get more torque out of a B16, will boring it out help and if so how much????</TD></TR></TABLE>


Bore it out to 86mm then throw a b17 crank in there!!!

You will have 1891 cc's

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SiRWanabe &raquo;</TD></TR><TR><TD CLASS="quote">
Bore it out to 86mm then throw a b17 crank in there!!!

You will have 1891 cc's</TD></TR></TABLE>

that's what i was even thinking about. not bad cause you'll have close to 1.9L with a good R/S ratio, better than the B18C but not as good as the B16A.

 

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


Bore it out to 86mm then throw a b17 crank in there!!!

You will have 1891 cc's</TD></TR></TABLE>
86mm is not recommended for a street motor. 84.5mm is about as high as you want to go if reliabliity is important. And that will only get you about 1750cc from a B16A with the stock stroke. On the other hand, if you want more torque, you would be better off buying a B18C. You will get more displacement. And as expensive as B18C motors are, it is cheaper to buy one than it is to buy and sleeve a B16A.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by StorminMatt &raquo;</TD></TR><TR><TD CLASS="quote">
On the other hand, if you want more torque, you would be better off buying a B18C. You will get more displacement. And as expensive as B18C motors are, it is cheaper to buy one than it is to buy and sleeve a B16A.</TD></TR></TABLE>

 

The cheapest way to get allot more torque out of your b16 would be to give it somethig to drink like apple juice or orange juice and even this thing called Nitrous works too..... .
That other way would be to give it a little ppsssshhhhh would give you allot !
depends what you want !!
I wouold built a rev monster if i was going b16. I'm getting my torque a different way but i cant tell u how ......

 

put ctr pistons, ctr cams, b20 cranks help too

 

TwoRedEGgs gots it right b16's sould be built as rev monsters.

 

it always amazes me that in the ALL MOTOR forum, people say use the spray! Oh well

To get torque from the B16 you'll want to bore/stroke it, or bump compression- like stated. I've done just about everything to my old B16 while leaving the bottom stock... there was never any torque to be had. You can, however, rev the living **** out of the B16 and make 200+whp. This, combined with a light car, would prove to be comptetive to a point.

 

"it always amazes me that in the ALL MOTOR forum, people say use the spray! Oh well "

well that would the eaiset way but oooh well.

not much torque to be had in a b16 in stock bore stoke form....like i said and others is good for a rev monster, the R/S ratio is rev happy ......
good luck dude !!!