dun_panic

Hi all, im new here. Im from Malaysia. Just installed this SOHC VTEC engine to my ej6. The engine got ZC stamped on it. It got 2 solenoids on it. 2 other solenoids @gearbox. So total is 4 solenoids under my hood. VTEC kicked in crazily @5500rpm, cutoff @7200 approx . Im new to honda, asking google but theres no info about ZC dual vtec

dun_panic

help x_X

ehrkeith

For more detailed info remove the exhaust shield and look at the head code directly above the middle of the exhaust manifold. Type that number in and you will know what head you have on that block.

dun_panic

thanks, ill check tomorrow morning

dun_panic

zc p2j-3 98. so its d16y5/y8?

jbpnoman

https://honda-tech.com/forums/tech-misc-15/d-series-head-codes-786093/

It's a Y8 head on a ZC block. Also, your dizzy is broken.

dun_panic

y8 head on zc, is that mean this is modded engine?

jbpnoman

Yes. It's a basic ZC bottom end using a Y8 dual stage head, and if I had to lay a bet, I would say the motor was set up for fuel efficiency. That's the only sane reason to use a dual stage vtec head in a mini-me.

dun_panic

oh, no wonder i got good fc. How can i get the vtec to kick earlier? let say 3/4k rpm

jbpnoman

With a vtec controller, but you don't want it to kick in earlier. Honda engineers put a lot of time and effort into setting cam profiles with vtec to maintain proper power and torque curves, as well as good fuel efficiency. I guarantee you aren't as smart as they are.

dun_panic

lol yea. but not enough power when i shift to 2nd, waiting it to reach 5500 again felt lke forever x_x. Btw thanks so much for helping me

jbpnoman

These are Honda econoboxes we're talking about, not Ferraris. Even an SI is just a slightly quicker econobox.

ehrkeith

I thought Y8 was a normal vtec head? While y5 was the economy head?

jbpnoman

The Y8 is a normal vtec head, but the D series motor is still an econobox, no matter what head you put on it.