a6/zc pistons in d15 block
10-26-2007, 03:37 AM
#11
0.0 BAR
Join Date: Jan 2005
Posts: 0
Re: a6/zc pistons in d15 block
Originally Posted by sikcrx89
why wouldnt it all D have the same deck height just different combustion chambers
207mm vs. 212mm
My first post stands as truth, do the research, do the math.
Just remember, I'm building a D15 with the longer 137 mm rods and P29's, 13.7:1 compression
They stick up a little, .052" with the extra 3mm (.118") rod length. on stock rods they'd be .066", about 1.7mm below deck.
10-26-2007, 11:17 AM
#13
3.0 BAR
Join Date: Apr 2006
Posts: 3,015
Re: a6/zc pistons in d15 block
Originally Posted by Mista Bone
you sir are wrong.
207mm vs. 212mm
My first post stands as truth, do the research, do the math.
Just remember, I'm building a D15 with the longer 137 mm rods and P29's, 13.7:1 compression
They stick up a little, .052" with the extra 3mm (.118") rod length. on stock rods they'd be .066", about 1.7mm below deck.
207mm vs. 212mm
My first post stands as truth, do the research, do the math.
Just remember, I'm building a D15 with the longer 137 mm rods and P29's, 13.7:1 compression
They stick up a little, .052" with the extra 3mm (.118") rod length. on stock rods they'd be .066", about 1.7mm below deck.
10-26-2007, 02:55 PM
#15
3.0 BAR
Join Date: Apr 2006
Posts: 3,015
Re: a6/zc pistons in d15 block
Originally Posted by RotaryGeek
isnt the dohc zc block the same as the single cam for the most part? except the gead stud holes right?
10-27-2007, 11:37 AM
#16
3.0 BAR
Join Date: Aug 2003
Location: NE-PA
Posts: 4,666
Re: a6/zc pistons in d15 block
Yes you can run d16a1 or zc pistons in a d15 with no issues, a couple of my friends and I used to run a couple motors like that years ago. I've also run regular flat-top d15 pistons in a d16a6 block on stock a6 rods and a welded up z6 head. Only slight issue I ran into with that one was I had to round off the edges of the piston to get it to seat correctly into the head, seeing that the actual piston itself sat above the deck by quite a few thousandths.
10-27-2007, 02:59 PM
#18
3.0 BAR
Join Date: Apr 2005
Posts: 4,890
Re: a6/zc pistons in d15 block
Originally Posted by Mista Bone
you sir are wrong.
207mm vs. 212mm
My first post stands as truth, do the research, do the math.
Just remember, I'm building a D15 with the longer 137 mm rods and P29's, 13.7:1 compression
They stick up a little, .052" with the extra 3mm (.118") rod length. on stock rods they'd be .066", about 1.7mm below deck.
207mm vs. 212mm
My first post stands as truth, do the research, do the math.
Just remember, I'm building a D15 with the longer 137 mm rods and P29's, 13.7:1 compression
They stick up a little, .052" with the extra 3mm (.118") rod length. on stock rods they'd be .066", about 1.7mm below deck.
what is a 137mm rod out of ?
10-28-2007, 10:55 AM
#20
0.0 BAR
Join Date: Jan 2005
Posts: 0
Re: a6/zc pistons in d15 block
Originally Posted by bitchasscracker
what is a 137mm rod out of ?
You could try A6 slugs, but the extra .020" height will hit the head and not even be 10.9:1 compression. I'm having to edge bevel the pistons slightly.
It's a really tight fit with the P29's once you factor in rod stretch. I've had ALOT of help from Tony Bischoff @ BES, you might have heard of them. They have one the Jeg's Enginemasters buildoff the past two years. HAd to go over mass vs. rpms and piston speed to gauge rod stretch. Even one Z1 rod was "tested" for stretch and came in UNDER his predictions, which means a little extra safety.
2006 winners.......by one point over Jon Kasse
http://www.besracing.com/jegsengine.html
2007 winner by 5 points over Jon Kasse
