Ya the #2 and #3 rods are probably offset less than the #1/#4 ??...
but my crude drawing can't really show that much detail so use your imagination.

For example, if the #2/#3 rods are offset 1mm each, the #3/#4 rods would best be offset 3mm each to match.

Same as some of the other guys, I'm curious about the longevity and reliability of this kind of setup, but I'm sure for what this engine is going to be used for, longevity doesn't matter.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by UN-Boosted97Lude &raquo;</TD></TR><TR><TD CLASS="quote">
*cough*89mm here*cough* </TD></TR></TABLE>

same here... aren't B-series engines so CUTE!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sir3n &raquo;</TD></TR><TR><TD CLASS="quote">there is always room for more power. now if someone could run this by me one more time, why this is a bad setup for turbo?</TD></TR></TABLE>The rule of thumb on B series turbo blocks with standard bore spacing is to stay at 84mm or less in your bore size because of the tremendous pressures turbo charging causes. Larger bores can baloon out or egg shape on you easily with thinner sleeves. This, of course, destroys your ring seal. The extra bore in your turbo app does not create enough power to make it worth it when you can just up the boost 1 pound for the same effect.

 

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

same here... aren't B-series engines so CUTE! </TD></TR></TABLE>
i know, they look like little kids compared to our engines

 

and, uh, do tell how de fawk you put a cylinder head on one of these things? I don't get it...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Greyout &raquo;</TD></TR><TR><TD CLASS="quote">and, uh, do tell how de fawk you put a cylinder head on one of these things? I don't get it...</TD></TR></TABLE>
hmmm.... that's a damn good question

 

If you have to ask, you are probably not a good candidate for one of these blocks.
GSR cylinder heads were designed for 81mm bore...how to they go on an 84 mm block?

 

Yeah...about the head fitting. Earl said that the combustion chambers would need to be modified, but I am curious if we are talking about a completely custom CNC head or a heavily modified b-series. Would extra material be added on one side of the CC and then taken out of the other? If the head is completely custom- then what about the cams, wouldn't they need to be lengthened?

Is this a new idea/practice? or has it been used elsewhere with a measure of success? My head is spinning...

 

Are the chambers in the head opened to the same size as the bore? If so, doesn't the chamber wall(in the head, between cylinders) get rather thin at 86mm?

 

It's probably a reworked honda head with material added between 1/2 and 3/4 combustion chambers, before reshaping. Not that I know or anything...

 

All good questions and thoughts..I don't have the answers as it is not my project.

 

this sounds like a very nice setup. to make it into a turbo setup, the only requirements would be a different crank right. Now call me crazy but would an H series crank be a nice candidate (with extensive modification, that is)? the stock H22 or H23 bore is 87mm, however im not sure if they have thin walls between cylinders or if they are factory "offset"

-ryan

 

just when I thought the tricks to b-series geometry was over
nice! to earl for posting that

 

haha.. i already feel like im a champion of big bore, runnnin 86 on the street already. i cant wait to see what i could do with something like this. does the guy have any idea what kinda bore sizes we can run with that setup?

on the down side.. youll have to have a real radical head to take advantage of the increased displacement. most defiently ITBs and a huge header, along with crazy headwork.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tegasaurus &raquo;</TD></TR><TR><TD CLASS="quote">this sounds like a very nice setup. to make it into a turbo setup, the only requirements would be a different crank right. Now call me crazy but would an H series crank be a nice candidate (with extensive modification, that is)? the stock H22 or H23 bore is 87mm, however im not sure if they have thin walls between cylinders or if they are factory "offset"

-ryan</TD></TR></TABLE>Stock crank works perfectly with this set-up...all in the rods

 

Holy hell.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jerseykid609 &raquo;</TD></TR><TR><TD CLASS="quote">Very inovvative im suprised that this hasent been done before </TD></TR></TABLE>

Wow, every hear of a VW VR6 engine? Same concept. 6 cylinders into the space of your average 4 cylinder, all under one head with offset combusion chambers.

It turns the Honda into a V4.... Kinda.

Slick way to pull off an idea that Alan at Eagle Rods(when he owned his own shop) and I talked about back in 1999, but there wasn't enough real aftermarket to make headgaskets, sleeves, pistons, work the head, etc. All ideas, no money or support sucks.


Modified by SiR Kid at 7:01 AM 7/18/2003

 

What about your head? I would think you would have to change so much like the head. what about the valve reliefs? Fill me in pops...

art

 

Good info...

anybody know or have any more info on exactly how to mod the rods?

or anybody have any pictures of the top of this block still?

 

do you know how old this **** is?

 

yup... anyone want to put the pics back up?

I have only recently been seeing a little more of the whole offset bore thing...

doesn't seem like there is to many people messin with the offset bore...

 

pics dont work..

 

Nevermind, this is an 03 thread..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves &raquo;</TD></TR><TR><TD CLASS="quote">Nevermind, this is an 03 thread..</TD></TR></TABLE>

 

Here you go