I am searching around for rods and pistons for my d15z6.
On the tuner toys website i found these:

rods:
http://tunertoys.zoovy.com/product/R3-5394-AH

pistons:
http://tunertoys.zoovy.com/product/149184


Does anyone here now if this is going to fit the d15Z6?

I couldnt find an email adress on their site, but i know for sure they are on here. so i hope the chime in and help me out!!!

 

sales@tunertoys.com

thats their email

i just got a set of the TT Rods for my Y7/Z6 Minime and they come with arp 2000 bolts

 

the rods wont work in a D15, unless it's a VTEC D15B, or the D15Z1 (They use D16 length rods) Or unless the crank is the same on your D15z6. If it's a VTEC, or VTEC-E motor I'm guessing it will work.

So yes the D16 rods will work, however the deck height of the D15's is shorter, so the piston will be out of the hole. If you use Vitara pistons, then the piston will only be out of the hole .013"....um I don't know what that is in mm.....you can do a conversion calc.

EDIT....nevermind. I haven't seen those SRP pistons before....that's exactly what you'll need. Good luck.

 

well the d15z6 has VTEC-E i am planning on using the cams and "valve bridge" (if that's the correct word) from a d16z6
with this i will eliminate the "E" and just have VTEC

if i remember correctly the stroke and bore is the same either d15z6 or b

 

what year is the motor? If it's a 96+ then you'll be fine. If it's a 92-95 then you're going to have a problem....IF it's the same head as the d15z1. The ports are tiny....like ridiculous, not worth using tiny, and the combustion chambers are huge.

You'll do much better to use a Z6 head.

 

not only are the ports silly, but VTEC-E technology is completely different from VTEC. the valvetrain on VTEC-E causes one to open slightly more than the other until vtec hits and they both open equal amounts. it isnt just the way the valves open, but the camshaft (only 1) is also different; and you could just buy a z6 complete head for the about same price as replacing the entire valvetrain. so definately just do it right and buy the head.

 

actually the best thing would be to have a Z6 head with the VTEC-E roller rockers and a cam with HELLA duration.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by thehatchninja &raquo;</TD></TR><TR><TD CLASS="quote">....IF it's the same head as the d15z1. The ports are tiny....like ridiculous, not worth using tiny, and the combustion chambers are huge.

You'll do much better to use a Z6 head.</TD></TR></TABLE>

actually the combustion chambers are small and the dish of the pistons is huge, thats why if you put any other head on it the compression is next to nothing.

also, d15z1 uses 137mm rods, but the big end is smaller than that of a D16, although the d15b vtec does use 137mm rods and D16 sized rod bearings.

so you just need to cross referance the rods or bearings to ANY d16, if the parts are the same then the rods will work, if they arent you will need D15 rods, and ONLY d15 rods, or a d15b vtec crankshaft.

 

I will be changing out the valvetrain for on of a d16z6, aswell as the camshaft this makes the VTEC-E work like a normal VTEC.

I know this has been done before and people have reached about 150 hp (and more torque then a stock b16) on a stock d15z6 (115hp) i want to keep the block and the head of the z6 to see what is possible with this engine.
In the future i want to boost the engine and try to get at least over the 200bhp


The engine is 96+ so that's a little better. I might just go ahead and take the rods and pistons out to measure them.

edit:

i just found this on d-series.org:

"the D15B VTEC uses 1.6L rods, the D15Z6 VTEC-E motor uses the VX rods.

I know for fact the rod journals are 3mm different in diameter, might wanna go thru my D15Baby8 build where I'm using VX rods and PM7 pistons for near 14:1 compression."

could this be right? Where can i find all the measurements of the internals of the different d-engines...?


Modified by bobobob at 12:51 AM 7/27/2007

 

your best best would be to find a honda site from the netherlands. or just keep searching around like you are.

 

find out the dimensions of those d15 pistons

you also need to find out what rods are in the d15z6
and / or
the rod journal diameter of the d15z6

 

ok, so that the bore and stroke is the same on the d15b and d15z6 doesnt mather?

They both have a bore of 75mm and a stroke of 84.5 mm.
The d16z6 has a bore of 75mm and a stroke of (i believe) 90mm

Does this have anything to do with it...?

I have a d15z6 in my possesion somewhere next week, i'll take it apart then to see what the measurements are... since i can't find those anywhere

 

you're right but those specs don't have anything to do with whether or not d16 rods will work with your d15.

The JDM d15b vtec has a unique crankshaft. It is just like a d15 crankshaft but the rod journals are larger. It uses a d16 rod (137mm) and shorter pistons 27.75mm compression height.

the only problem is that d15 non vtec uses the same 84.5mm stroke, 134mm rods and a piston thats like 30.5mm i think.


The only solution I can think of for using a d15 is to use a obd1 jdm d15b vtec crank, aftermarket d16 rods, and vitara pistons.

For everything else it will be a lot easier to just get a d16 block.

 

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

the only problem is that d15 non vtec uses the same 84.5mm stroke, 134mm rods and a piston thats like 30.5mm i think.
</TD></TR></TABLE>

The d15z6 is a vtec-e, but to make sure i need the measurements of the rods an pistons.

I am going to try to find out and bring this topic back up then

 

if it's vtec-e then you can't use those rods or pistons with it.

 

oh man that sucks. why not?

i'm still going to get those measurements to make sure.

 

the rod journal is smaller than d16s

all d15 vtec-e & non vtec uses the crank with the smaller rod journal.

you'd have to get a obd1 jdm d15b vtec crank, d16 rods (oem or aftermarket) and vitaras.

then you'd want to switch out the vtec-e head to something else, the ports are super tiny.

It would be cheaper + easier to just get a obd1 jdm d15b and then get rods + pistons. IMHO. Or start off with a d16

 

or if you want to go all motor, use the d17a7 usdm civic gx pistons found in the 01-05 civic gx.

Then get a different head (anything except vtec-e or 8valve) I'd go with a z6 head and you have the option of using the vtec-e rockers + camshaft or just staying with the normal vtec. Crower will do a cam regrind of that vtec-e cam. you can achieve 10.8:1 cr with this method


good luck

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Bense &raquo;</TD></TR><TR><TD CLASS="quote">
then you'd want to switch out the vtec-e head to something else, the ports are super tiny.
</TD></TR></TABLE>

He has an HX head not a VX head, it's a 96+ so the ports are fine.

 

i would not run tunner toy rods, at all.. i bought some and ended up double checking all of the specs.. the piston side bore was off so much it was stupid, the crank side needed some work as well.. plus they were out of balance by over 3g

crap.

just get eagles for anther 80$ and call it a day

 

well the only other manufacturer that makes rods for the d15z6 is crower, and those are $700.-

isn't there another way to make the stock rods and pistons stronger?
i am planing on boosting the d15z6

 

what are your power goals? You may not need to build the bottom end.

 

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

He has an HX head not a VX head, it's a 96+ so the ports are fine.</TD></TR></TABLE>

lol i just got pwned

 

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

lol i just got pwned</TD></TR></TABLE>

Watch out, this thread is about to be deleted.

 

lol