i have a d16z6 and the head is done for so i am trading my buddy a short throw for his old
head, which is a y5 head same as y8 but vtec-e and a lil less power but it ran real strong on
his car. anyways my questions are...1. which headgasket can i use for higher compression?(i was told y8)
2. can i re-use the z6 headstuds, and 3. will my p28 work fine, buddy says he ran one and it was fine?..

btw i DO kno the y5 head isn't the greatest idea but idc lol it's practically free AND has less than 1k on it since
he rebuilt it, so ya it's good enough for me

 

Yes the Y8 head gasket will work, or one for a Z6.

You'll need 1 '96-'00 D-series head stud, that will go by the VTEC solenoid. The rest of them you will use the Z6 head studs.

You'll need to chip the P28 with a D16Y5 basemap. The Y5 runs with 1 intake valve per cylinder being closed until VTEC engages. So if you change the engagement RPM from 2500-3000 RPM (stock HX) to 4800 RPM (where the P28 engages VTEC), you're going to run very rich until 4800 RPM. Your ignition timing maps are also going to be way off as well until that point. Over time you're going to damage the engine by doing that. It's also going to run really bad at low RPM; you're choking the engine from lack of air and flooding it with fuel.

 

oh and i posted on here a lil bit ago about a cel and "crazy bogging" well turns out it was a code 9 for
'no.1 cylinder position sensor' and i found that thats a dizzy problem, according to what i searched, and also
the valve seals on this z6 head r gone, crazy smokage plus it has 210k lol so it's done for.

 

thanks!!

 

sry to sound noobish but how to chip the p28 with a y5 basemap? i've read the stickys on tuning/chipping ect
but i don't get most of it...

btw jw, if i wasn't to chip it with a y5 basemap, how long would u guestimate it would last? cuz my buddy
that had this head on his mini-me swap drove for about 5mths until he spun a rod bearing...

 

anyone with some more info?