jtmartin96civic

Here's the setup... What's your opinion??

Choice of 2 heads- Z6, ZC
P29 Pistons
LS rods with d-series bushings
Y8 intake manifold
Header (not sure of brand or design right now)
Zex stage 2 Cam
Crower Valve Springs and retainers

What kind of power could i expect from this setup and properly tuned??

EX-T

I'm trying to figure out where you get p29 pistons from?!

Jim Truett

For an all motor setup like that, I personally would just use the Z6 rods and polish the beams, and install ARP rod bolts. That would keep reciprocating mass down.

iheartjayDem

how are you going to use b series rods in a d series?

Max Kling

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iheartjayDem &raquo;</TD></TR><TR><TD CLASS="quote">how are you going to use b series rods in a d series?</TD></TR></TABLE>
Its very possible .

But not really worth it IMO.

P29 pistons are ZC correct, out of the late 80's integras. If so this is a nice set up.

I was always a fan of using an A6 block, one of the best SOHC blocks out.

I have a buddy who is working on almost the exact same set up as that and hes expecting about 150-160 to the wheels which is about right.

lemon_juice

id say a 130-145 hp set up right there

Luserkid

What do you mean D series bushings when your talking about rods?

Bakeoff

so you have a ZEX cam, but not sure which head you're going with? Is the cam fro a vtec head? I think that will decide which head you use there, buddy.

jtmartin96civic

About the B-series rods... I just had to pick them up from the machine shop, they had bushings pressed in for the smaller D-series wrist pin. Only 40 bucks and the rods were mine... couldn't turn that down. Im not too sure about P29 Pistons being out of a ZC... but I'm sure that then used them in the D16A9 in the old integra's.

I dont have the cam YET... that's why im having to decide on a head, not sure if i want vtec or not, i've heard that i NEED it and i've heard to stay away from it. But if im all motor then i need all the help i can get...right??

honda-chaser

proud d16z6 owner

lemon_juice

i dont see why the stock rods wouldnt handle what you want, since your going to stay all motor. if u wanted a stronger rod then id just go with aftermarker eagles or something, so you dont need bushings.

on your decision for vtec...its up to you on what head u can find, if its strictly a drag car. its goina be a nice daily driver if you have vtec, and a hassle of a driver if u had a big cam non vtec.

the PM7 and P29 are the same pistons basicaly, with same dome and shape. one comes from the jdm zc motor, and the other comes from the 1st gen integras.

HiProfile

Bearings spin due to high rpm loads - rods sometimes flex, but mainly the bolt does or just snaps. Rods bend due to hydrolocking, detonation, or just extreme loads. Bearings on d-series blocks also spin because the pump (w/o modding) can't keep up after 8500 (psi yes, flow no).

The d16 rods are fine for 200-220whp in boosted motors, the LS rods for 250-300. Those rods still share the problems that the LS has, that the OEM rod bolts suck *** for high rpm. Regardless of the rods, the bolt limits you to 8k max. I'd suggest selling the rods to someone on turbod16.com or dseries.org, and use the money to shot-peen the stock rods and press ARP's in them.

If you are going to use a zex cam, I'd probably suggest the vtec head. You can get a better power band with vtec, and the head still flows well vs the zc. For the block prep, I'd get the endyn-modded pump (or send yours in), massage the block's oil gallery a bit, and have a machine shop camfer the crank oil holes a bit more when they micropolish it and balance the rotating assembly. In this arena, a little extra goes a long way for safety.

honda-chaser

d16z6 proud owner....still goin

petty$rep

i just want to say good job on going for a NA d series build. that is what i originally planned to do and then everyone told me to get over 160 whp on a d you have to boost, so that is what im going to do now. my goal is 180-200 whp.

i would just like to know where that extra 35-50 whp is coming from that the people are guessing you will gain. is it coming from the pistons and higher compression, or is most of that hp going to be coming from the zex cam? im just curious b/c i thought u had to do a lot to get a d to 150 whp going the NA route.

oh, and i would say go with vtec, it is very nice to have IMO

d16y7hatch

would it be more worth it putting that kinda money into a dohc engine maybe?? just an idea. I was gonna put a y8/z6 head on mine, but decided dohc would be worth waiting a little longer.

jtmartin96civic

without the cost of the cam, springs and retainers... i've only got 300 in it. so, no, it wouldn't be worth the money to me! Just already had most of what im runnin.

turnsignalandy

every 1 raise in compresion is about 10hp. So going from 9.1:1 to 12.1:1 would be a 300hp gain in a parfect world. I read this on spades sohc upgrade threade.

petty$rep

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turnsignalandy &raquo;</TD></TR><TR><TD CLASS="quote">every 1 raise in compresion is about 10hp. So going from 9.1:1 to 12.1:1 would be a 300hp gain in a parfect world. I read this on spades sohc upgrade threade. </TD></TR></TABLE>

i have heard something similar (although i think those #'s are pretty high), but you also have to take into consideration the approx 20% loss in power from the motor to the wheels

turnsignalandy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by turnsignalandy &raquo;</TD></TR><TR><TD CLASS="quote">every 1 raise in compresion is about 10hp. So going from 9.1:1 to 12.1:1 would be a 300hp gain in a parfect world. I read this on spades sohc upgrade threade. </TD></TR></TABLE>

WOOPS. I meant 30hp gain in perfec world.
Anyways. I think that with a stage 2 cam, good intake and header, hi flo cat and exhaust, you could make around 20hp on a D series. The compression increase will also give you about a 15-20hp increase depending on the raise in compression. Plus a good tune and all, and i think about 150whp on a d16y8 with those mods is realistic. That would be able to tear a stock B16 a new one.

Syndacate

Maybe 110, 120 or so at the wheels...just boost the SOB...

lemon_juice

the gains will come with the combination in parts...the more radical cam will want compression. to take advantage of the cam, he needs to make sure his head can actually flow what the cam wants to, via port/polishing, intake mani, header, ect. with a proper tune, i think 130-145 is a good goal with this.

those parts alone, will be a sloppy and a build not fully thought about. having those parts and what i mentioned to bring out a good combination and balance, should be a fun and reliable daily driver.

B18C5-EH2

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EX-T &raquo;</TD></TR><TR><TD CLASS="quote">I'm trying to figure out where you get p29 pistons from?!</TD></TR></TABLE>

1988-1989 Acura Integra or DOHC ZC black top from Japan.

I ordered my brand new P29's from my local Acura dealership:



I added 100% OE Honda bearings, seals, gaskets, etc. etc.



In a D16A6 block y0!



All in a 1991 hatch:



My engine has a stock non-VTEC head, stock cam, stock intake, and is running on a stock PG7 1989 Integra ECU and in my old 1990 hatch ran dead even with my wife's 143whp/102 torque to the wheels B16A2 swap in her 1992 Si hatch. It's been running strong on stock A6 rods now for over 20,000 miles and I'm not always easy on it.

I'm guessing your set-up should net 130-140whp and 110 torque perhaps, but the power delivery will be smoother and fatter than a B16A. Area under the curve is where SOHC builds shine.


Modified by B18C5-EH2 at 10:25 AM 11/3/2006

PRcivicHB

B18c5-EH2- Thats a beautiful little setup... Fresh raliable rebuild, nice DD power, and still under $1000...

jtchinoy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Syndacate &raquo;</TD></TR><TR><TD CLASS="quote">Maybe 110, 120 or so at the wheels...just boost the SOB...</TD></TR></TABLE>

Definitely will make more, I make 113 to the wheels with boltons on a A/T 2000 ex y8

According to may 2006 honda tuning, it can make 146ish with hondata. If you can, use PM7s since it's pretty much the improved pm29

honda-chaser

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by PRcivicHB &raquo;</TD></TR><TR><TD CLASS="quote">B18c5-EH2- Thats a beautiful little setup... Fresh raliable rebuild, nice DD power, and still under $1000... </TD></TR></TABLE>
true that