Anyone consider both block filling and block posting? filled a d16 tonight and noticed that the block filling actually only fills about the top 1" of the block and leaves the center part of the cylinder unstabilized... Figure maybe block posting would help... any thoughts?

 

cyl flex occurs at the top of the cyl.

fill the block and call it a day, no need to reinvent the wheel here.

 

T.O.O./Larry W./Endyn claims that the highest load is like an inch or 2 down from the top of the sleeve

 

i guess you could if you wanted..
or you could just fill deeper..my fill is about 2 inches..of course you need to do some serious grinding to clean up the water inlet

 

I was going to do both. I just haven't pulled the motor apart to see if it's feasable.

Sur loading is greatest at the top, or 2" down. But the more support the merryer!!!! Plus posting only cost $2.00 or so and about 30min of time.

 

you can't tell from here..but my fill is deep and i drilled all the coolant holes
(sorry about the size)

 

No re-inventing the wheel here. Yes the cylinders will flex the most up top. but the highest stress on the cylinder is around the mid point of the cylinder. I dont see why it would be a disadvantage. I may do this on my LS/VTEC when Im building it up.

Also, when filling the block, the block gets only filled about 1" from the deck. If you went 2" from the deck, I would think that there maybe more of an overheating issue, since the water pump hole is smaller and also the passages for the coolant holes would be much longer, both decreasing how much coolant is flowing through the block which may lead to overheating.

 

I have to agree with you on the over heating issues when filling DEEP B16Drag, that's a possability. But the most important part to brace in any engine is at the point where the piston is pushed the hardest into the cylinder wall. Which is roughly 1/2 way down the cylinder(and then up to the top) so as long as your post's don't get in the way of some of your well needed coolant passages, and you are careful. I'd say give it a try and let us know how it goes. Personally I'd try to get the fill 2inch's down since you can drill out the coolant hole, and you can't the posts. Which if I'm correct, will be placed directly in the path of 8 of the coolant holes...?

 

the block studs wouldn't affect your coolant holes... and i measured my pour it's just over 2 1/8.. i used masonry bits to radius the water pump outlet .. i plan to supplement the loss of cooling with a quality radiator and water injection plus.. the fill still allows a decent flow of coolant to the head which in my opinion becomes most important in determining overheating issues

 

alright so when i decide to fill my spare block... anyone got any extra devcon??