supertrogdor

how many ponies can you coax out of this teeny little 70hp. engine, W/O turbo, or supercharging. I was just wondering.

Ricey McRicerton

Not crap. Serioulsy.

labatt50

if you swap a d16z6 head you might hit 100whp

Hatch It

Better off saving for a swap like i am.

If money is a problem, just find a D16Z6 SOHC Vtec, they are pretty decent, especially if you turbo'd later on....Like i am doing hehe

But yeah intakes and headers and exhaust systems and random thin gs like spark plug wires and cams, to make that motor just reach over the 100HP mark, it is NOT worth it whatsoever. So start saving and rip that biotch out, you will be very happy later on trust me.

BauleyCivic

My guess would be 130-140 WHP out of the CX (thats 150ish crank)

You will need a D16Z6 (EX) transmission, ported D16Z6 head, full valvetrain upgrade, a crazy cam, and an upped rev limit.

Of course, keeping the CX head greatly limits what you can do. If you completely built the motor...i'm talking hi comp pistons, ported head, and a large cam maybe 90-100 WHP...those 8 valves restrict the air flow horribly.

If you want to work off of the CX block though, there is power to be found.

Hatch It

NON-Vtec =
8 valves =
1.5L =

Not to much to play around with, thats all im saying, i mean to find a cheap D16Z6 you get alot more for the price to hook up an engine that only has the above specs.

my 2 cents

supertrogdor

im not going to build it up i am getting an H22 but i was just seeing how much you could get out of that little motor, and i mean little.

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R0bCee &raquo;</TD></TR><TR><TD CLASS="quote">
1.5L =
</TD></TR></TABLE>

I have a 1.5L...I don't think its

Besides, with a Z6 head and tranny that CX would be a potent little machine...I wouldn't be suprised if you could run 14's with one. A guy I know (BADEG6) ran a 14.7 with a JDM D15B w/ bolt-ons in a CX on street tires.

Hatch It

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

I have a 1.5L...I don't think its

Besides, with a Z6 head and tranny that CX would be a potent little machine...I wouldn't be suprised if you could run 14's with one. A guy I know (BADEG6) ran a 14.7 with a JDM D15B w/ bolt-ons in a CX on street tires.</TD></TR></TABLE>

Statement retracted

klungemonger

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

I have a 1.5L...I don't think its

Besides, with a Z6 head and tranny that CX would be a potent little machine...I wouldn't be suprised if you could run 14's with one. A guy I know (BADEG6) ran a 14.7 with a JDM D15B w/ bolt-ons in a CX on street tires.</TD></TR></TABLE>

Well a D15B swap sure... but strictly speaking about a Z6 head swap onto a CX motor, I don't know if you could even do that since I think there are only 2 valve reliefs in the CX pistons (didn't need any more than that!)

BauleyCivic

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

Well a D15B swap sure... but strictly speaking about a Z6 head swap onto a CX motor, I don't know if you could even do that since I think there are only 2 valve reliefs in the CX pistons (didn't need any more than that!)</TD></TR></TABLE>

Some CX's came with 2 valve relief pistons, but most came with 4 valve reliefs. Several guys on HT have done CX mini-me's, and none of them have run into two valve relief pistons.

kabaroo

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by R0bCee &raquo;</TD></TR><TR><TD CLASS="quote">NON-Vtec =

</TD></TR></TABLE>

doesnt the cx have evtec?

or is that the vx?

BauleyCivic

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

doesnt the cx have evtec?

or is that the vx?</TD></TR></TABLE>

VX.

Here are the 2 valve vs 4 valve pistons that have been HIGHLY DEBATED

klungemonger

That first one is scary! What a disappointment it would be to open your block up to put the VTEC on and find that crap in there...

94eg!

iTrader: (2)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klungemonger &raquo;</TD></TR><TR><TD CLASS="quote">That first one is scary! What a disappointment it would be to open your block up to put the VTEC on and find that crap in there...</TD></TR></TABLE>


Hahahahah....

My buddy put a dx or si tranny on his d15b8. It makes it way more fun to drive and at 80 its up around 3500rpms for better passing power. It also puts way more toruqe to the ground in those lower gears. His up-shift lite is alway on in 5th though, cause the computer can't tell what gear he's in. When I drive my stock CX, it's more like driving a 3 speed around town. Even on the freeway, I can't get really good acceleration in 4th. It is nice and quiet cruising at 80 though, and only push 2750rpms.

A tranny swap is a good idea if you get one for cheap, and can put it in yourself...

0BoostedJeff

it takes power to make power

Chillin94hatch

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by labatt50 &raquo;</TD></TR><TR><TD CLASS="quote">if you swap a d16z6 head you might hit 100whp</TD></TR></TABLE>

No not at all...

klungemonger

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chillin94hatch &raquo;</TD></TR><TR><TD CLASS="quote">

No not at all...</TD></TR></TABLE>

I bet he would, actually...it's the head that chokes that engine. The block is similar to any other D15, like the 130hp D15B VTEC for example.

The Z6 already has a 20hp advantage over the 16-valve D15B7 engine, which itself has 35hp more than the D15B8 in the CX. With this head you'd be adding: higher compression than a stock Z6, larger valves and twice as many of them, and VTEC...all at the same time. I'd say close to 100whp, considering there's no power steering and maybe no a/c either.

POE

why not more than 100 hp? like 110 or something, those blocks are the same as dx's right?

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Vtecin94dx &raquo;</TD></TR><TR><TD CLASS="quote">why not more than 100 hp? like 110 or something, those blocks are the same as dx's right?</TD></TR></TABLE>

Yeah...i'd say it would be comprable to what a Z6 puts to the ground...

But remember...a dyno can't read gearing. A CX with an EX head will still feel slow as **** unless you get rid of the trans.

Chillin94hatch

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

I bet he would, actually...it's the head that chokes that engine. The block is similar to any other D15, like the 130hp D15B VTEC for example.

The Z6 already has a 20hp advantage over the 16-valve D15B7 engine, which itself has 35hp more than the D15B8 in the CX. With this head you'd be adding: higher compression than a stock Z6, larger valves and twice as many of them, and VTEC...all at the same time. I'd say close to 100whp, considering there's no power steering and maybe no a/c either.</TD></TR></TABLE>

Obviously there would be a significant increase in power when swapping on the vtec head, but I highly doubt you would instantly obtain 100 hp to the wheels .... Maybe with some bolt on's you could get up there.

POE

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

Yeah...i'd say it would be comprable to what a Z6 puts to the ground...

But remember...a dyno can't read gearing. A CX with an EX head will still feel slow as **** unless you get rid of the trans.</TD></TR></TABLE>
o hell yes

klungemonger

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chillin94hatch &raquo;</TD></TR><TR><TD CLASS="quote">

Obviously there would be a significant increase in power when swapping on the vtec head, but I highly doubt you would instantly obtain 100 hp to the wheels .... Maybe with some bolt on's you could get up there.</TD></TR></TABLE>

It's been said for decades, longer than we've been alive, that power is in the head. A Z6 puts about 110 on the ground. The only difference between a stock Z6 and a D15B8 with a Z6 head is the .1L less displacement. Maybe you'd lose 10hp from that, but factor in that the compression would be higher than a stock Z6 and you mostly make up for it.

Like has been said already though, without the right gearing no amount of hp is much fun.

BauleyCivic

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by klungemonger &raquo;</TD></TR><TR><TD CLASS="quote">
Like has been said already though, without the right gearing no amount of hp is much fun.</TD></TR></TABLE>

Which is a part of why b-series motors feel so much faster than D-series...the gears are so short.

Holly35

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

Some CX's came with 2 valve relief pistons, but most came with 4 valve reliefs. Several guys on HT have done CX mini-me's, and none of them have run into two valve relief pistons.</TD></TR></TABLE>

Correct.

Mine runs ok (stock CX block with a Z6 head) but its still slow. I'm guessing pressing around 110 HP or so.