ok i got a 94 vtec head 70k miles,i know i need a z6 gasket,and cut my dist. because i am using my intake manifold etc, but i keep hearing that i got to remove hte oil jet from the zc block (its a sohc zc) how do i remove it ? my friend had the same setup but didnt remove the oil jet? and he used a toggle switch to activate the vtec thats sound cheesy to me... any info would help... i used the search button but no help on the oil jet ..if any one has pics sites info any thing that would be awsome thanks

 

i used a screw to pull mine out.

 

yeah, once you pull your old head off, it will be right between the top side of the two middle cylinders.


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THe oil jet is the * in the "pic". Just kinda pry it out, i just took needle nose pliers and pulled it out, not hard. And vtec wont activate without it out, you will starve your mtor of oil. And be carful of detonation until you get that thing tuned, mine detonated a bunch below 2K rpms at full throttle. This was in my 89 crx with an a6 block. Dunno if your sohc zc is diff.

 

hmmmm...what are the tourqe spec on the head to? what plugs,wires etc do i need? what rpm do i activate the vtec? and is there a diff. wit the vtec over non vtec? im still a rookie at this here as you all can tell...if there is anyone in the south jersey area i am willing to pay for someone to help me out here...thanks

 

another question you need to ask is which bolts to use, the different heads have different length bolts. I can't remember which ones you're suposed to use, but I know it makes a difference.

while you're replacing the head gasket anyway, get a D16Y8 head gasket. It's thinner and gives you a slightly higher compression.

 

damn some one tlel me wut bolts to use lol .. this is harder then i thought thank god you guys know what you are talkin about ...

 

Just to answer a couple of questions in your earlier post, you should be able to use the same plugs/plug wires. To engage VTEC, you can splice wires to your original ECU, you can use an RPM switch, you can splice a wire from your aftermarket tach into the ECU, or you could just run the ghetto switch. VTEC at low RPMs would rock... and yes, take the oil jet out... Not too sure about what head studs to use, it makes sense to me to use the bolts that go with the head. Just an example, say the Z6 head was 1/4 taller, the Z6 bolts would be that much longer to compensate for the longer distance. Not for sure though, someone who knows for sure needs to answer that.

 

thanks guys, keep it coming ...its helping

 

ok, to correct about the y8 head gasket, its not true. Im using one, and its a myth, well, thats what soem sources told me after i did it. I think theres a 2ply head gasket out there from honda that may be thinner, but i doubt its as strong. My y8 gasket was 3ply.

Oh, and about vtec at lower rpms, nonono. Right now im running my stock crx si ecu, with a switch for vtec, and if you switch it on any earlier than 4800 rpms, its useless, you can hear the motor quiet down, and power sucks, much better when you flip it at 4800.

I used si head bolts, and they worked fine for me, no problems yet.

I am about to send the head i got off someone on here to a machine shop, because even though he siad it had 40,000 miles on it, it burns more oil than my old 190,000 mile head, its just blows oil like no other. So im about to send it off, and go ahead an put on some crower vavle springs and retainers, and a stage 2 cam, and im swapping over to obd1.

Im hoping for 14's. WIth an 8lb flywheel, stage 1 clutch, i/h/e, and a skunk2 intake mani.

 

Now that I think about that, I see that the low RPMs with VTEC would not work that well due to oil pressure. Good thinking. The theory was good...

 

thanks guys, so can i use a toggle switch for the time being and my stock zc(si)intake manifold? what else is there that needs to be done any re wiring etc yada yada thanks

 

so what else is need for this head swap,??

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by y49crxsi &raquo;</TD></TR><TR><TD CLASS="quote"> and im swapping over to obd1. </TD></TR></TABLE>