What crank is best to use in a b18b block? ..... would you guys rather go with b18b speces or b18c

 

bump

 

wellllllll. You missed the biggest part of the question here.

<FONT SIZE="2">WHAT ARE YOU DOING WITH IT?</FONT>

rpms wanted?
power?
forged internals?
all motor? (looks like FI since you posted here, but you never know)

give us some deatils here. It's like asking what's better a dell or an IBM......give us some uses for it.

 

IBM and LS

 

ls....why give up what little stroke you have when it's not going to gain ANYTHING

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boosted94cx &raquo;</TD></TR><TR><TD CLASS="quote">ls....why give up what little stroke you have when it's not going to gain ANYTHING</TD></TR></TABLE>

You really shouldn't and can't rev that high with an LS crank and if you are using something like a GT40R turbo you'll need to rev to 9 or 9.5k rpm.

 

LS cranks can rev high just fine, just look at InlinePro and their drag cars, 700-900whp with ls cranks going past 10k rpm.

The stroke of most honda crankshafts are still small enough that they do not have any problems going to high rpms, but you will need to worry about side wall load, balancing, etc. because it can do a lot of damage if you don't put the correct components together

In reply to the original post, there really would be no point in putting in a smaller crankshaft, but all b-series cranks are interchangable. If you really want to choose the best invdividual crank for your engine (as in sorting through a bunch of b18b cranks) I beleive Endyn (www.theoldone.com) uses a method based on how well the journals match something on the block, basically taking Honda's OEM allowed tolerances and matching up cranks with blocks of same tolerance difference.


Modified by dcturbols at 6:44 PM 4/19/2006

 

You really think that 1.8mm longer stroke than GSR/ITR is going to make that much difference on rod/stroke ratio? Lots of ppl on this board rev to 9 grand with a LS crank, including me.

 

yes...ppl are still stupid in respect to r/s. i was gladly turning 92mm to 9500 daily with no worries