im not sure if i should just get a vtec head for my sohc zc or just get a z6 motor. what do you guys think? opinons and facts. its in a 89 si crx btw
thanks

 

why is "t" in vtec caps...

 

y is your name hatchmo, y is the m upper case? y are u asking dumb questions? y are u responding if you dunt know anything related to the topic? dumb questions get dumb answers...thats why

 

alot of peeps will say keep the a6 bottom end and z6 head! i would rather the newer engine altogether. preference mainly as to what you are going to use it for.

 

good comeback tj hooker

 

I would get the z6. Newer is always nice less mileage!

 

im jus going to use it for daily driving. its a zc with low milage not too much, it came form attarco. also aside from the longblock or head question, z6 or y8? or theres no difference on the motor/head
thanks

 

I belive that they are the same exept for minor changes like the IM and TB and valvecover

 

depends on the mileage of the head and your block, if you rebuild both it sounds like a good idea. Otherwise I would just do the whole motor swap.

 

the head is roughly 100k and the block i would say 80k- 90k

 

i was reading sum websites about the head swap, and i was wondering what ecu should i use? should i stick to my crx si one (pm6)? or is there a better one i can use?

 

PM6 isn't designed for VTEC. So unless you wanna run without the use of VTEC, you'll either have to have a manual VTEC switch (not recommended, unless you have the ECU reprogrammed..in which case I'd still run the correct ECU) or run a VTEC ECU.

 

The difference between the z6 and the y8 vtec engines are that the newer y8's have a knock sensor, while the z6 is different in that it didn't use a knock sensor but did use a crank position sensor. And there within lie the differences of the ECU's used between the 2 engines... and yea of course the obvious IM and TB.

 

the timing on the Y8 is different too.

z6 had better timing

the y8 also has a weaker oil pump spring.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by roterx7 &raquo;</TD></TR><TR><TD CLASS="quote">y is your name hatchmo, y is the m upper case? y are u asking dumb questions? y are u responding if you dunt know anything related to the topic? dumb questions get dumb answers...thats why</TD></TR></TABLE>

lol, he destroyed him with that comeback, the guy didnt even respond after that one.

 

yeah he got me!

 

the ecu is p28 right? thats just from on top of my head so im not sure if im right or not. im usung a z6 head

 

depends on what you plan to do afterwards, if you wanna rock it N/A stick with the a6 bottom end, the compression will be ALOT nicer with the headswap compared to just a motor swap. IMO, the a6 with z6 or y8 head is a better N/A setup, and im partial to the die-ing a6's.

 

Yeah, the P28 is the corresponding ECU for the D16Z6.

 

i have the y8 head and the sohc zc bottom end if i were you double check the piston rings in the block and the valve seals in the head thats what went out on my **** first and both were low miles

 

i say vtec head

 

any other things i should know cuz i only have a weedend at the most to do this head swap, got work during the week and dont really want to take up my whole 2 day weekend with **** cuz its my DD
thanks