snoochtodanooch

I am looking to build a D series, SOHC turbo engine. I have looked at using a replacement block to start with in the d16z6, but the price for a D15b from Hmotors is really nice. My question is, what are the specs on the engine. I have had alot of trouble finding info on this engine, and when i have it has been inconsistent and i have been unable to verify any of the information. Also, what is the compatability of this engine as far as the components go. Will i be able to get rods, pistons and so forth for this engine. Will they be the same as far as matching with the z6. if anyone has built up this engine or has any advice or information is would be greatly appreciated.


Modified by snoochtodanooch at 5:17 PM 2/22/2004

Jim Truett

The D15b is basically a D15Z1 block with a D16Z6 head. The compression is higher, and the cam is more agressive than the Z6. It is rated for 128hp and 105 ft/lbs of torque I believe. I have one, and I personally prefer it to a D16Z6.

BauleyCivic

What he said ^

Also the D15B has the VX 137mm rods, and I believe the pistons are the same as the Z6. The head is nearly identical to the Z6 with the exception of the cam.

snoochtodanooch

blue chips? anyway, is anyone boosting a d15?

Jim Truett

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BauleyCivic &raquo;</TD></TR><TR><TD CLASS="quote">What he said ^

Also the D15B has the VX 137mm rods, and I believe the pistons are the same as the Z6. The head is nearly identical to the Z6 with the exception of the cam.</TD></TR></TABLE>

The pistons are more like DX units. I had to use DX rings when I freshened up my D15B. The DX rings are thinner than the Z6 units.

Jim Truett

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snoochtodanooch &raquo;</TD></TR><TR><TD CLASS="quote">blue chips? anyway, is anyone boosting a d15?</TD></TR></TABLE>

My turbo kit will be here Friday or Saturday. Mine has less than 10k on it so I'm sure it will handle the 8psi I will feed it with. The most important aspects of engine life under FI is fuel management and intercooling. The D15B has a good rod ratio so stresses under boost will be handled well, but I think the rods will be insufficient for much more than 200 WHP with agressive shifting, and around 230 WHP driven responsibly.

snoochtodanooch

who is making rods and pistons for the d15. i am wondering about getting parts for it. if i do go turbo i want rods and pistons for sure.

snoochtodanooch

bump i need this info, trying to price this out before i buy it

snoochtodanooch

bizzump

mc

don't mean to jack your thread but I was wondering if z6 aftermarket parts will work in the d15b such as cams, springs, retainers

Jim Truett

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snoochtodanooch &raquo;</TD></TR><TR><TD CLASS="quote">who is making rods and pistons for the d15. i am wondering about getting parts for it. if i do go turbo i want rods and pistons for sure. </TD></TR></TABLE>

I don't know about the length, but the big end diameter is the same as the D16Z6 at 1.7707 inches. The book I have states the big end diameter of the VX rods is 1.6526 inches. I also think the pistons are standard PM3 DX units.

Jim Truett

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mc &raquo;</TD></TR><TR><TD CLASS="quote">don't mean to jack your thread but I was wondering if z6 aftermarket parts will work in the d15b such as cams, springs, retainers</TD></TR></TABLE>

Yes, but anything less than a stage-2 cam and you will be losing power.

snoochtodanooch

don't worry your not jacking my thread, thats what i wanted to know also. I want to do the same thing, just a turbo set-up. if someone could translate a jap manual to english on the d15 that would be appreciated..