is this a d15z1?? (JDM d15b) - Page 2 - Fuelly Forums

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Old 11-30-2007, 11:43 AM   #11
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I was trying to make sure it wasn't the two-stage model. Thanks for the input.
Ah, I must have missed that memo... I thought we wanted to confirm that it's a VTEC-E motor rather than performance or two-stage VTEC.
The VTEC-E valve cover can be swapped around with other VTEC and '96+ non-VTEC valve covers, the close-coupled cat is found on a number of engines and as I said, with one exception, all VTEC and VTEC-E motors only have one solenoid, so you can't really point to any one of those particular features as a dead giveaway.
The small intake ports, visible presence of 8 intake valves and an EGR valve all point to a VTEC-E motor. The proof, as has been said, would be to pop the valve cover and take a look at the rockers and cam lobes.

Something I just noticed that worries me: the rust deposits visible in the right-most intake port. The walls of that port are aluminum, so there shouldn't be any rust on them. Water would have to have gotten into the engine and sat on the back of that intake valve, making the valve rust and leaving rusty-water deposits on the port walls.
While the rust itself may not be a huge issue, you have to ask how the water got there - was the engine left out in the weather? If so, did water get into any other ports, and if so, did it drain down into one of the cylinders and rust the cylinder bore?
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Old 11-30-2007, 12:26 PM   #12
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wow - thanks for all the great info guys...

-I'm rebuilding the whole engine, so it's all going to be taken apart (I've wanted to rebuild an engine for a long time, this seems to be a good [easy/cheap] engine to be my first)

-the engine looks like it sat out for awhile...the Alternator and other components look worn/weathered. I'll swap all my non-VX specific components from my current DX engine to this engine.

-I know the valve cover says "Vtec-e", but like I said above, I was just worried that something happened and the valve cover had been switched. (either by accident or b/c my engine supplier was trying to pull a fast one on me)

thanks again for your help guys - I should have the valve cover off either tonight or tomorrow...I'll post up pics then. (I has the repair manual, so I think I should be able to identify what head this is...the less aggressive cam lobes for 4 of the 8 intake valves seems to be the easiest identifier.)

-Peter
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Old 11-30-2007, 02:54 PM   #13
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I got this same engine jdm d15b with the vtec-e head in my vx right now. You need to use all your old parts on this block, intake ect. also it doesn't have the oil cooler to coolant parts like the us d15z1. the engine works great and gets the same gas mileage as the us version...
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Old 11-30-2007, 07:31 PM   #14
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I got this same engine jdm d15b with the vtec-e head in my vx right now. You need to use all your old parts on this block, intake ect. also it doesn't have the oil cooler to coolant parts like the us d15z1. the engine works great and gets the same gas mileage as the us version...
I'm swaping this into my DX...what parts will I have to get from a US VX model? (intake manifold, 5 wire O2 sensor,...anything else?)

*I took the valve cover off tonight, and it's the Vtec-e head (the lobes on the SOHC are so hard to see - I ended up just rotating the flywheel and watched the 2 intake valves move differently)

thanks!
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Old 11-30-2007, 11:04 PM   #15
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p07 ecu (49 state), maybe different engine wiring harness... ummm... vx tranny...
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Old 11-30-2007, 11:10 PM   #16
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if I remember right, 1992 civic hatch backs were all wired for vtec engines, part of why they are popular for engine swaps, but you still need to check on this for your self, get an ECU, tranny, insterment cluster is handy as it has a tac.
if you want to compare parts lists, check out Majestic honda's web site.
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Old 12-01-2007, 12:36 AM   #17
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nice, how much was it with shipping?
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Old 12-01-2007, 08:49 AM   #18
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nice, how much was it with shipping?
$400 shipped to my door
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Old 01-23-2008, 02:48 PM   #19
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$400 shipped to my door
You wanna sell that valve cover?
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Old 07-25-2008, 08:29 AM   #20
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thanks for the help!!!

Your intake ports look small enough to be the z1's I have two spare z1's in my garage and they look nothing like the y5. Just pop the valve cover off to know for sure.


And that certainly looks like the z1/z6 vtec solenoid as well.
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