does anyone know if the b20 rod bearings will handle the force of the vtec redline? from what i understand , if you over rev 7,000 you are at risk for a rod bearing to go out.......anyone know the status on this?? if soo I might change my mind going B20 vtec because i dont want to build the bottom end......

 

You are correct, stock B20's were designed for a 6800 RPM redline.

 

your thinking rod bolts, not bearings.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Suck my DX &raquo;</TD></TR><TR><TD CLASS="quote">your thinking rod bolts, not bearings.</TD></TR></TABLE>

so much more than just that...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by g0tgot &raquo;</TD></TR><TR><TD CLASS="quote">if soo I might change my mind going B20 vtec because i dont want to build the bottom end......</TD></TR></TABLE>

then just start looking for a GSR shortblock.

for every person that tells you its going to let go, 2 or 3 will chimie in about their buddy who had one that revved to 8500 all day on a stock bottom end.

the question is, raymond k. hessle, do you want to roll the dice?

 

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

the question is, raymond k. hessle, do you want to roll the dice?</TD></TR></TABLE>

lol

 

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

the question is, raymond k. hessle, do you want to roll the dice?</TD></TR></TABLE>
couldn't put it better... some last some break right at the first trip to 8500... but in the end they will all go the same route...

 

This is so confusing. Everybody swears by by Honda OE. Rumor is that all the top NASCAR teams run Honda bearings. Those who don't wind up on the DNF list.

I also heard that Jeff Gordon got a crate of Spark Racing B20 Pistons, RMF tri-y header, CBoggs Millport head and RM M25x cams and now makes over 950whp on an otherwise stock motor and conservitave road course tune. Tranny also has Honda MTF.

- As repo

 

LOOOOOOOOOOOL

 

But they are not B20 bearings in NASCAR.

 

didnt they use honda bearings cuz its narrow? dunno juz wondering.. lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Master of the Universe &raquo;</TD></TR><TR><TD CLASS="quote">This is so confusing. Everybody swears by by Honda OE. Rumor is that all the top NASCAR teams run Honda bearings.</TD></TR></TABLE>

Yup. at .0015 clearance, too. I think they run .0017 on the middle journals. But thats just for people "in the know"

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Master of the Universe &raquo;</TD></TR><TR><TD CLASS="quote"> CBoggs Millport head
- As repo</TD></TR></TABLE>

holy ****, you mentioned the baddest ************ ever...Curtis Boggs.


the one from the lynyrd skynyrd song.

"port me a head curtis boggs curtis boggs, people say he was a'useless, but people are the fools, cuz curtis boggs was the baddest ************ to ever play the blues."

 

SOOOOO end in end......it is not wise to just SLAP in a vtec head and have at it......

 

my next question is......the bearings cant handle it....then how hard is it to replace the bearings??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by g0tgot &raquo;</TD></TR><TR><TD CLASS="quote">SOOOOO end in end......it is not wise to just SLAP in a vtec head and have at it......</TD></TR></TABLE>

yes

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by g0tgot &raquo;</TD></TR><TR><TD CLASS="quote">my next question is......the bearings cant handle it....then how hard is it to replace the bearings??</TD></TR></TABLE>

if you're asking, dont try

 

is it possible to have a vtec head with a 6800 rpm redline? have vtec kick in at 4400? woulod you even benefit from this?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by g0tgot &raquo;</TD></TR><TR><TD CLASS="quote">is it possible to have a vtec head with a 6800 rpm redline? have vtec kick in at 4400? woulod you even benefit from this?</TD></TR></TABLE>

that's such a crappy setup you shouldnt even waste your effort on it

 

so what are you saying....the gsr and ITR use different bearings from factory....???

I thought all honda motors use the same bearings .......

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by g0tgot &raquo;</TD></TR><TR><TD CLASS="quote">so what are you saying....the gsr and ITR use different bearings from factory....???

I thought all honda motors use the same bearings .......</TD></TR></TABLE>

you are wrong

 

ok......soooo if they all use the same bearings.....and the GSR and ITR have higher redlines naturally the LS bearings would be able to handle the LS/vtec conversion without replacing the bearings correct? im so confused.....??

 

are their different part numbers for the bearings in the b**b engines compared to the B**C engines??i mean factory part numbers?

 

itr/gsr bearings are different from ls/b16

 

maaaaan........i fi knew that before i put the motor back in the car and before i started driving it to and from work.........and before i decided that i want LS-vtec.......i would have changed those..........can i still run LS-vtec on these bearings ina B20B from japan (p75) 9.6-1 comp 133tq 145hp?