Let's put the D15 rod issue to rest
3.0 BAR
Joined: Feb 2004
Posts: 7,783
Re: Let's put the D15 rod issue to rest
Hmmm how would the vitara piston be in that since it gives already a low CR in a 1.6 block so maybe it would almost usuable in that d15b block? I dunno I'm just thinking out my ***. :1
0.0 BAR
Joined: Dec 2002
Posts: 0
Re: Let's put the D15 rod issue to rest
Originally Posted by Mista Bone
D15B vtec rods ARE THE EXACT SAME Honda rods as the D16 rods.
So why are you saying you can't run them?
Z1 block uses a DX crank, 42mm rod bearings, not the 45mm like the D15B vtec.
You can safely bore a D series to 76mm before sleeving. After sleeve job the limit is 78mm, maybe 79mm on a grenade motor.
81mm was tried once on a sleeved motor, it never made it off the dyno before spliting the sleeves in NA form.
So why are you saying you can't run them?
Z1 block uses a DX crank, 42mm rod bearings, not the 45mm like the D15B vtec.
You can safely bore a D series to 76mm before sleeving. After sleeve job the limit is 78mm, maybe 79mm on a grenade motor.
81mm was tried once on a sleeved motor, it never made it off the dyno before spliting the sleeves in NA form.
I was saying you cant run the crower usdm d15b rods in a jdm d15b
3.0 BAR
Joined: Feb 2004
Posts: 7,783
Re: Let's put the D15 rod issue to rest
But how healthy was the engine before? I still think b7's and B2's aren't that bad. It's not a megastrong engine but still can hang pretty good for quite some time on a good tune and healthy engine before hand.
