LS crank in a B18C5?

Reply Subscribe

Thread Tools

Search this Thread

Aug 30, 2002 | 12:09 PM

Boostless97Lude

Guest

Posts: n/a

can you LS stoke a B18C5???

like it says..... can you put an LS crank into a B18C5??? just the crank, not the rods.

Aug 30, 2002 | 12:11 PM

MK Ultra

Honda-Tech Member

Joined: Sep 2001

Posts: 2,550

Likes: 0

From: too close to Oklahoma

Re: can you LS stoke a B18C5??? (Boosted97Lude)

Absolutely not.

You HAVE to use LS sized rods unless you want to introduce your pistons to your cylinder head.

Aug 30, 2002 | 11:02 PM

lsvtec4door

Joined: Jul 2002

Posts: 287

Likes: 0

From: united states

Re: can you LS stoke a B18C5??? (MK Ultra)

actually ls rods are longer then type r rods.....so u would have a problem with that....as far as the rest imnot sure

Aug 31, 2002 | 12:29 AM

MR. ARIZONA

Member

Joined: Jul 2002

Posts: 3,223

Likes: 0

From: florida

Re: can you LS stoke a B18C5??? (lsvtec4door)

Why would you wanna do that? Boost?

Aug 31, 2002 | 12:54 AM

sgT

Honda-Tech Member

Joined: Apr 2000

Posts: 8,757

Likes: 0

From: WI

Re: can you LS stoke a B18C5??? (lsvtec4door)

Quote:

actually ls rods are longer then type r rods.....so u would have a problem with that....as far as the rest imnot sure

WHere do you people get your information from?

LS rods are SHORTER than GSR/ITR rods.

Oct 17, 2005 | 12:36 PM

miller.91.HB

Junior Member

Joined: Jan 2004

Posts: 199

Likes: 0

From: Chicago, IL

Re: can you LS stoke a B18C5??? (sgT)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sgT »</TD></TR><TR><TD CLASS="quote">WHere do you people get your information from?

LS rods are SHORTER than GSR/ITR rods.</TD></TR></TABLE>

Is this actually true, can anyone actually back that info up? I always thought oposite.

Oct 17, 2005 | 12:46 PM

migs

Honda-Tech Member

Joined: May 2002

Posts: 7,812

Likes: 1

Re: can you LS stoke a B18C5??? (miller.91.HB)

FWIW, I am actually doing this setup as we speak. LS rods are shorter.

Trending Topics

BWR Throttle Body Gasket

7

174
Desperately need help identifying rear calipers

19

512
Auto 16y8 - S20 manual swap

3

173
d4 light blinking

5

321
civic VX d15z1 ignition timing

26

9.1k

Oct 17, 2005 | 12:46 PM

Kendall

Senior Member

Joined: Oct 2003

Posts: 10,289

Likes: 1

From: Hendersonville, NC

Re: can you LS stoke a B18C5??? (miller.91.HB)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miller.91.HB »</TD></TR><TR><TD CLASS="quote">Is this actually true, can anyone actually back that info up? I always thought oposite.</TD></TR></TABLE>

Think about it. Two blocks with the same deck height. They use pistons with pretty much the same compression height. The one with the longer stroke absolutely positively has to use shorter rods.

Oct 17, 2005 | 12:49 PM

Bradstard

Honda-Tech Member

Joined: Mar 2003

Posts: 4,027

Likes: 0

From: Greenville, SC

Re: can you LS stoke a B18C5??? (Boostless97Lude)

You need to use LS rods also. I'm running an LS crank and LS (length) rods in my B18C5.

Oct 17, 2005 | 12:55 PM

#10

migs

Honda-Tech Member

Joined: May 2002

Posts: 7,812

Likes: 1

Re: can you LS stoke a B18C5??? (Bradstard)

Bradstard, what is your displacement when you did that? I am using USDM 81.25 pistons.

Oct 17, 2005 | 04:57 PM

#11

ITRbroham

shit post warrior

Joined: Dec 2000

Posts: 9,141

Likes: 5

From: Socal, CA

Re: can you LS stoke a B18C5??? (miller.91.HB)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miller.91.HB »</TD></TR><TR><TD CLASS="quote">

Is this actually true, can anyone actually back that info up? I always thought oposite.</TD></TR></TABLE>

People get lulled into thinking that just because the B18B's crank has a longer stroke that the rods have to be longer also.

Modified by ITRbroham at 7:29 PM 10/17/2005

Oct 17, 2005 | 05:06 PM

#12

uNF$@#!

Honda-Tech Member

Joined: Jan 2000

Posts: 9,684

Likes: 1

Re: can you LS stoke a B18C5??? (miller.91.HB)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by miller.91.HB »</TD></TR><TR><TD CLASS="quote">

Is this actually true, can anyone actually back that info up? I always thought oposite.</TD></TR></TABLE>

holy batman digging up old threads from SGT who never posts on this board anymore

Oct 17, 2005 | 07:14 PM

#13

Stein

Member

Joined: Sep 2003

Posts: 1,165

Likes: 0

From: PDX

Re: can you LS stoke a B18C5??? (255.255.255.255)

At least he can't get told to search

Oct 19, 2005 | 05:38 AM

#14

migs

Honda-Tech Member

Joined: May 2002

Posts: 7,812

Likes: 1

Re: can you LS stoke a B18C5??? (Stein)

Bradstard, I saw somewhere saying that you had a 2.0 liter? Is that with the LS crank?

Oct 19, 2005 | 09:36 AM

#15

miller.91.HB

Junior Member

Joined: Jan 2004

Posts: 199

Likes: 0

From: Chicago, IL

Re: can you LS stoke a B18C5??? (Kendall)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Kendall »</TD></TR><TR><TD CLASS="quote">Think about it. Two blocks with the same deck height. They use pistons with pretty much the same compression height. The one with the longer stroke absolutely positively has to use shorter rods.</TD></TR></TABLE>

After seeing this and reading what you said that really makes sense. Thanks.

Oct 19, 2005 | 09:51 AM

#16

(__________)

Honda-Tech Member

Joined: Jun 2002

Posts: 2,348

Likes: 0

Re: can you LS stoke a B18C5??? (migs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by migs »</TD></TR><TR><TD CLASS="quote">Bradstard, I saw somewhere saying that you had a 2.0 liter? Is that with the LS crank? </TD></TR></TABLE>

Yes he is running a 85x89 setup

Oct 19, 2005 | 06:31 PM

#17

migs

Honda-Tech Member

Joined: May 2002

Posts: 7,812

Likes: 1

Re: can you LS stoke a B18C5??? (Skinny Stevestard)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Skinny Stevestard »</TD></TR><TR><TD CLASS="quote">Yes he is running a 85x89 setup

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

85mm piston with an 89mm stroke? That makes 2.0?

Oct 19, 2005 | 09:16 PM

#18

TypeSiR

Honda-Tech Member

Joined: Sep 2005

Posts: 452

Likes: 0

From: under a rock, nj

Re: can you LS stoke a B18C5??? (sgT)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sgT »</TD></TR><TR><TD CLASS="quote"><BLOCKQUOTE>quote:<HR>ac tually ls rods are longer then type r rods.....so u would have a problem with that....as far as the rest imnot sure<HR></BLOCKQUOTE>

WHere do you people get your information from?

LS rods are SHORTER than GSR/ITR rods.</TD></TR></TABLE>

in one of the old tuning books, the section where people write in to ask questions in the back, in one of the answers asked by a subscriber they gave all the b series rod lengths. and im pretty sure the ls rods were the longest. and they are the same as the d series non vtec rods. but im just a noob what do i know.

Oct 20, 2005 | 04:29 AM

#19

migs

Honda-Tech Member

Joined: May 2002

Posts: 7,812

Likes: 1

Re: can you LS stoke a B18C5??? (TypeSiR)

Well, I would have to say the tuning book is wrong.

Oct 20, 2005 | 05:11 AM

#20

Bradstard

Honda-Tech Member

Joined: Mar 2003

Posts: 4,027

Likes: 0

From: Greenville, SC

Re: can you LS stoke a B18C5??? (migs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by migs »</TD></TR><TR><TD CLASS="quote">

85mm piston with an 89mm stroke? That makes 2.0?</TD></TR></TABLE>

I don't remember the exact displacement, but it's a tick over 2.0L. The B20 block is an 84x89.

Oct 20, 2005 | 05:20 AM

#21

migs

Honda-Tech Member

Joined: May 2002

Posts: 7,812

Likes: 1

Re: can you LS stoke a B18C5??? (Bradstard)

This is how I am thinking.

B20 = LS crank
84mm = LS/GSR/ITR pistons
85mm = B20 pistons

If all above equations are true, wouldnt

84.5mm pistons = 1.9?

Oct 20, 2005 | 05:21 AM

#22

Hybrid ctr

Honda-Tech Member

Joined: Feb 2001

Posts: 2,363

Likes: 0

Re: can you LS stoke a B18C5??? (Bradstard)

85*89 = 2020CC = 2.02L

Formula: Bore X Bore X Stroke X 0.0031416 = Displacement in CC

Oct 20, 2005 | 05:22 AM

#23

Bradstard

Honda-Tech Member

Joined: Mar 2003

Posts: 4,027

Likes: 0

From: Greenville, SC

Re: can you LS stoke a B18C5??? (migs)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by migs »</TD></TR><TR><TD CLASS="quote">This is how I am thinking.

B20 = LS crank
84mm = LS/GSR/ITR pistons
85mm = B20 pistons

If all above equations are true, wouldnt

84.5mm pistons = 1.9?
</TD></TR></TABLE>

LS/GSR/ITR pistons are 81mm.
B20 pistons are 84mm.