which head is this i want to know is it a 3 stage head or a single vtec head ?

 

Doesn't 3-stage have two VTEC solenoids? I only see one. Or am I thinking about a different motor...

 

Now watch this and tell me is it 3 stage or not ?

 

Is it a US or Canadian car? If so then it’s just regular VTEC. If it’s a Japan spec, then it might be different.

 

Its d15b jdm engine

 

Then I believe it is the three stage VTEC but I’m not exactly sure how that works, and don’t have knowledge on it.
Do a bunch of searches on D15b.

 

A three stage system requires TWO solenoids... a single solenoid cannot open pathways to two different circuits separately. Now I have never actually seen a three stage VTEC cylinder head in person to understand how exactly the rocker arms on the intake side actually work... and your photos do not show what the rocker arms look like up close.

 

Could be the vtec e version of the obd2 d15b.

 

Here is the Head
and i dont know is it 3 stage dual vtec or not
because my engine is swapped and i am facing some issue so i want to confirm is my head and block are same or not
block number D15b
Head code p2j-2 year 97

 

Fairly certain that is not a 3-stage head. Every 3-stage head I've seen has a double VTEC solenoid.

 

My question is this possible that someone removed the dual vtec solenoid and attached a single one on this head ?

 

That is my understanding as well... but with such limited on hand experience, I hate to say it with conviction.

Yes, it is possible. They will both bolt on to the cylinder head the same, but they will function differently. For both circuits to work independently, there must be a divide between the two lower ports on the cylinder head and the single solenoid VTEC assembly would actuate them both when activated... so they are "Bolt On" interchangeable, but NOT functionally interchangeable.

I think Chrisfrom1986 is on to something here... maybe it is a VTEC-E head bolted to a JDM D15B block. I have seen many cheap azz single-slam drivers cobble together worse.

 

What's really strange is it looks to have the gasket marking of a dual solenoid. Could be a 3 stage head with the wrong solenoid.










@highschooler stop posting in threads about subjects you don't know about.

 

I think you are on to something there Chrisfrom1986... after looking at some SOHC VTEC solenoids I found in a bin, my old man memory was thinking that the Y8 stuff was much like the Z6 stuff in how it bolts up... however, this is NOT true. The single solenoid Y8 VTEC assembly will bolt up to the 3-Stage VTEC head, but opening the solenoid will engage both pathways in the rocker assemblies, unlike the twin solenoid assembly which divides those two lower holes and will engage the rocker assemblies separately and sequentially like the 3-Stage system is supposed to operate.

So based on what you have added here to this thread, it certainly appears that the OP has a JDM D15B 3-Stage VTEC engine with the wrong VTEC assembly on it.

 

For what its worth most of the dual stage Vtec I have seen lately comes with a vti hatchback with a cvt transmission.

https://www.japaneseclassics.com/veh...nda-civic-ek3/