LS/VTEC vs B18C vs stroked B16A
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From: Missouri City, TX, USA
LS/VTEC vs B18C vs stroked B16A
I have a few questions:
1. Why do ppl say "LS/VTEC makes more torque than GSR?" Don't the B18B and B18C have the same bore and therefore, same stroke? So isn't a LS/VTEC same as B18C?
2. Why stroked B16A to 1.8? Don't all B series have the same bore? So doesn't stroking a B16A to 1.8 get you a B18C?
Thanks.
- wei
1. Why do ppl say "LS/VTEC makes more torque than GSR?" Don't the B18B and B18C have the same bore and therefore, same stroke? So isn't a LS/VTEC same as B18C?
2. Why stroked B16A to 1.8? Don't all B series have the same bore? So doesn't stroking a B16A to 1.8 get you a B18C?
Thanks.
- wei
Joined: Oct 2002
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From: elk grove, ca, us
Re: LS/VTEC vs B18C vs stroked B16A (wc)
the ls has about 37cc than the gsr due to the crank and the rod size not the bore sizing that is why lsvtec ususally has a little more torque but also you have to account for a raised cr. you need to do a lil more research on the stroke of the motor..good luck and i have heard that stroking a b16 is not good thing to do
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From: Brampton, ON, CA
Re: LS/VTEC vs B18C vs stroked B16A (wc)
You seem to be a little confused about the diff between bore and stroke.
The stroke of engine is the length the piston moves up and down. The bore or the engine is the width of the cylinder.
The B18's and the B16's all have the same bore, but its their stroke that make the displacement diff.
The B18A/B has a stroke of 89mm
The B18C1/5 has a stroke of 87.2mm
The B16A has a stroke of 77mm
Since the B18A/B has that extra 1.8mm of stroke it makes a little more torque.
The stroke of engine is the length the piston moves up and down. The bore or the engine is the width of the cylinder.
The B18's and the B16's all have the same bore, but its their stroke that make the displacement diff.
The B18A/B has a stroke of 89mm
The B18C1/5 has a stroke of 87.2mm
The B16A has a stroke of 77mm
Since the B18A/B has that extra 1.8mm of stroke it makes a little more torque.
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From: Missouri City, TX, USA
Re: LS/VTEC vs B18C vs stroked B16A (joe_bocc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by joe_bocc »</TD></TR><TR><TD CLASS="quote">
The B18A/B has a stroke of 89mm
The B18C1/5 has a stroke of 87.2mm
The B16A has a stroke of 77mm
</TD></TR></TABLE>
Thanks man. My assumption was the B18B and B18C have the same exact displacement. So with the extra stroke, then B18B have a little more displacement.
Now, how does the B18B deal with the extra 1.8mm of stroke? block height (is B18B block taller than B18C)? piston height (is B18B piston pin placement higher than B18C)? rod length (B18B rod shorter than B18C)? chamber depth (is the B18B head deeper than B18C)? Thanks.
- wei
The B18A/B has a stroke of 89mm
The B18C1/5 has a stroke of 87.2mm
The B16A has a stroke of 77mm
</TD></TR></TABLE>
Thanks man. My assumption was the B18B and B18C have the same exact displacement. So with the extra stroke, then B18B have a little more displacement.
Now, how does the B18B deal with the extra 1.8mm of stroke? block height (is B18B block taller than B18C)? piston height (is B18B piston pin placement higher than B18C)? rod length (B18B rod shorter than B18C)? chamber depth (is the B18B head deeper than B18C)? Thanks.
- wei
Joined: Nov 2001
Posts: 223
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From: 79 South
Re: (skribblah)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by skribblah »</TD></TR><TR><TD CLASS="quote">b16a = ~ 1600CC
b18c = ~ 1800CC
b20z = ~ 2000CC
h22a = ~ 2200CC
notice the pattern?
</TD></TR></TABLE>Those are not the exact cc numbers, but close enough to get your point.
B16A/B - 1595cc
B18B - 1834cc
B18C - 1797cc
b18c = ~ 1800CC
b20z = ~ 2000CC
h22a = ~ 2200CC
notice the pattern?
</TD></TR></TABLE>Those are not the exact cc numbers, but close enough to get your point.B16A/B - 1595cc
B18B - 1834cc
B18C - 1797cc
Joined: Sep 2002
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From: Orange County, CALIFORNIACATIONATED, USA
Re: LS/VTEC vs B18C vs stroked B16A (wc)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wc »</TD></TR><TR><TD CLASS="quote">
Thanks man. My assumption was the B18B and B18C have the same exact displacement. So with the extra stroke, then B18B have a little more displacement.
Now, how does the B18B deal with the extra 1.8mm of stroke? block height (is B18B block taller than B18C)? piston height (is B18B piston pin placement higher than B18C)? rod length (B18B rod shorter than B18C)? chamber depth (is the B18B head deeper than B18C)? Thanks.
- wei</TD></TR></TABLE>
Block heights are the same, but Rod Lenths are changed.
B16B, B18A/B/C & B20 have the same Deck heights.
B16A has a shorter deck height Because of R/S ratios, it is not a good idea to stroke B16A's...
B16A/B 77mm crank
B18C1/5 87.2mm
B18A/B & B20B/Z 89mm
ALL B-series motors listed above have ~82mm Except the B20's with 84mm's.
Thanks man. My assumption was the B18B and B18C have the same exact displacement. So with the extra stroke, then B18B have a little more displacement.
Now, how does the B18B deal with the extra 1.8mm of stroke? block height (is B18B block taller than B18C)? piston height (is B18B piston pin placement higher than B18C)? rod length (B18B rod shorter than B18C)? chamber depth (is the B18B head deeper than B18C)? Thanks.
- wei</TD></TR></TABLE>
Block heights are the same, but Rod Lenths are changed.
B16B, B18A/B/C & B20 have the same Deck heights.
B16A has a shorter deck height Because of R/S ratios, it is not a good idea to stroke B16A's...
B16A/B 77mm crank
B18C1/5 87.2mm
B18A/B & B20B/Z 89mm
ALL B-series motors listed above have ~82mm Except the B20's with 84mm's.
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