Whats the best sohc vtec head, i have a 93 ex and i know they have problems with the cams pushing out of the motor and such, talked to a few of my buddies who work at honda, and they get them in all the time from kids missing shifts and ****, we have had about 4 or 5 of them this year at the shop, and i dont want it to happen to mine Again. Is there a better head to swap to?

 

What the hell are you talking about?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RyanCivic2000 &raquo;</TD></TR><TR><TD CLASS="quote">What the hell are you talking about?</TD></TR></TABLE>

ditto what are you talking about ??????????????????

 

y7 head is a well built head.

But your cam gear is coming out?

It sounds like you have more problems in life than your engine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tfalconier &raquo;</TD></TR><TR><TD CLASS="quote">i know they have problems with the cams pushing out of the motor and such, talked to a few of my buddies who work at honda, and they get them in all the time from kids missing shifts and ****</TD></TR></TABLE>

first of all what is the problem with the cams?

second what does that have to do with missing shifts? unless you mean over revving but i dont see how that affects anything unless they dont have rev limiters or they are going from the end of 3rd to 2nd by missing 4th....

please restate what you are trying to say....... thanks

 

no no no guys, many honda mechanics say they get these all the time, kids in hondas miss shifts and over rev the motors, cam push out of the head since bolt breaks, can also happen with motors with lots of miles, but what is the best head for flow and such any how?&gt;

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tfalconier &raquo;</TD></TR><TR><TD CLASS="quote">no no no guys, many honda mechanics say they get these all the time, kids in hondas miss shifts and over rev the motors, cam push out of the head since bolt breaks, can also happen with motors with lots of miles, but what is the best head for flow and such any how?&gt;</TD></TR></TABLE>

Your many honda mechanics dont know ****.
cams pushing out of the head...........Explain the reason why this would happen..

 

Yeah, I don't see how the cam could actually be pushed out of the head.

They might just be talking about smashing valves due to over-revving the motor. I've heard that stock Z6 and Y8 heads will last to almost 8k rpms before you hit valve float. By upgrading the springs and retainers you will be able to go beyond that.

Now. Which SOHC VTEC head is better? Both the Z6 and Y8 heads have their drawbacks and advantages - read this to figure out the differences between the two. If you actually read the entire article, and not just the pictures, you should understand the concept behind the differences in design. Both are excellent heads.

 

wow someone is full of ****.......

 

this post made my day

 

the cam doesnt literally push out of the head, but do to over revving and the poor way its held in place, it walks, ive seen a few of them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tfalconier &raquo;</TD></TR><TR><TD CLASS="quote">the cam doesnt literally push out of the head, but do to over revving and the poor way its held in place, it walks, ive seen a few of them.</TD></TR></TABLE>

Dude, I've spent a good bit of time screwing around with the good ol' D16Z6 and have never seen the situation you have described. Put it this way. If you do a good job of building the head, then don't worry about the head failing.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tfalconier &raquo;</TD></TR><TR><TD CLASS="quote">the cam doesnt literally push out of the head, but do to over revving and the poor way its held in place, it walks, ive seen a few of them.</TD></TR></TABLE>

Hahahahah cam walk.......

 

nice thread, haha put me in a good mood. i have never heard of the cam pushing out the head, if you over rev you'll have big time valvetrain problems

 

for top end flow the z6 is the best sohc vtec head you can have. you already have that head since you have a 93 ex so Id just swap out the intake manifold for a y8.

 

I would use a y8 head too. Im sure the flow is the same or better since honda uses a bigger manifold with it. Also its got a small combustion chamber for higher compression.

 

this may sound odd, but play with a Y5 head off of the HX motor....roller lifters. It IS a VTEC-E setup which works quite differently than the standard VTEC, but if its tuned correctly it has potential.

 

masterolla is rite about the vtec-E head, allows you to run more aggressive cams than regular vtec heads. im curious about doing a mini-me setup useing the Z6 block and the y5 head. wonder how big of the gains would be

 

I my Z6

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snowboarderguy44 &raquo;</TD></TR><TR><TD CLASS="quote">masterolla is rite about the vtec-E head, allows you to run more aggressive cams than regular vtec heads. im curious about doing a mini-me setup useing the Z6 block and the y5 head. wonder how big of the gains would be</TD></TR></TABLE>

The only problem with the Y5 is that nobody makes aftermarket cam grinds... you have to find a way to work with the e-vtec.

 

The VTEC-E blows for performance. It's not even real VTEC. At low RPM's (below ~2000 or so) only one intake valve opens, and then above that both intake valves operate normally. Big deal. The 92-95 Civic had the only real SOHC VTEC, where you had a low lift/high lift difference between non-VTEC mode and VTEC mode. All of the 96 and up Civic's with SOHC VTEC are VTEC-E

 

whats a good cam for a sohc motor, im not saying this head is crap, but it does have its problems, those honda techs i know are very good and they say they see it all the time, i just need to really explain the problem better i guess, im new to hondas, always worked on domestic, and did body work on everything so take it easy guys

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MightyMouseTech &raquo;</TD></TR><TR><TD CLASS="quote">The VTEC-E blows for performance. It's not even real VTEC. At low RPM's (below ~2000 or so) only one intake valve opens, and then above that both intake valves operate normally. Big deal. The 92-95 Civic had the only real SOHC VTEC, where you had a low lift/high lift difference between non-VTEC mode and VTEC mode. All of the 96 and up Civic's with SOHC VTEC are VTEC-E</TD></TR></TABLE>

does that mean that cams for a z6 and y8 would be diffrent?? Technicaly... having only one valve open at low rpm's is actualy better for low end grunt..

but are u saying that there is no "new profile" that kicks-in in a y8 head??

 

the vtec-E only blows for performance becuase no one has created a cam for them....you could run a more aggressive cam wit hthe vtec-E head than you ever could with the normal vtec head....the main factor is the roller-rocker setup....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by snowboarderguy44 &raquo;</TD></TR><TR><TD CLASS="quote">the vtec-E only blows for performance becuase no one has created a cam for them....you could run a more aggressive cam wit hthe vtec-E head than you ever could with the normal vtec head....the main factor is the roller-rocker setup....</TD></TR></TABLE>

i believe delta has a grind for the Y5....ive heard it runs rather crappy though at low RPM....i think they forgot to take into account the way the vtec works on that motor perhaps? I found a cheat with the Y5 which takes better advantage of the stock cam, Id love to see what i could do with a wilder cam in my HX!