would you all say that a built y8 or z6 head on obd 1 is more tunable* or able to get better/more HP than a built a6 on obd 0 or 1?

 

obd1 is more tunable than obd0 but you can always use a obd1 dizzy in the a6 head! It just depends if you want that MADDDDD V-TAK CRACK! J/K but serious too!

 

i'll sell you a rebuilt a6 head...stock rebuild...it has 35 miles on it.

 

If you do a search on the all motor builds most people run a z6 head for a reason

But really both heads are nice parts.

 

a6 head. hit up exospeed for a nice cam. call it a day.

 

Go with the z6 head and convert the car to obd1. i did it to my old rex and it sounded good. its about a 15hp gain and its cheap!!! not to mention it craaacks v-tec

 

sohc does not craaack vtec. although i'm sure more power can be made using a z6 head, so that's what i would go with if i were to build a NA sohc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by slowman! &raquo;</TD></TR><TR><TD CLASS="quote">sohc does not craaack vtec. </TD></TR></TABLE>

i call bullshit!! my mini-me cracked almost as load as a dohc... it was a built head though

 

Next person who talks about cracking vtec will have an ITR cam cracked over their skull by a Baseball hall of famer of my choosing.

 

vtec-------------------------------------------------CRAAAACK

 

haha...love honda tech, i have a rebuilt stock a6 head now and i think the valves have been seated or whatever because my timing belt tensioner bearing siezed and im thinking about getting some springs and retainers and putting in SOHC ZC cam in there for a little more lift and maybe some mild porting and polishing but im not sure if i want to put that much money into it yet. Im using this motor as a daily driver, autocross and light road racing

 

Why did you post this twice? Its like someone saying the same thing in both threads!

 

well, this thread was more oa on board diagnostic question with the different heads, i posted the other thread before i knew about obd being an issue. I just should have just changed the title of this thread i didnt think it was that important... well now i know whats really important...

 

get on d-series.org. The sohc vtec engines were designed more for efficiency than power, Its only vtec on the intake side.... And, please remember that vtec doesn't make power, its not magic... power comes from flow, compression ratio, cam profiles. Stock vs. stock the vtec heads does all this better. But the meanest all motor d's are non-vtec... D16a6's or D16y7's. As far as vtec on turbo d's, its not bad, but I don't see it as a big benifit either. Take two of the same turbo kit, one on a sohc vtec motor, the other on a non-vtec sohc, both having a good tune they would make nearly identical power (other than one having a vtec hickup). You also have a lot more options for cams with a non-vtec... cheaper cams too. So if it was me: If I was going sohc turbo D, I'd stay non-vtec. If I was building an all motor D, I'd stay non-vtec. If I was just going to leave it a stock engine and drive it, I'd do a sohc vtec

 

A6

 

you are a smart man, i like you