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Old 11-19-2002, 08:26 AM   #1
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Default Differences between D16Z6 and D16Y8?

Like the title says, can someone run down the major differences between these two motors?
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Old 11-19-2002, 08:27 AM   #2
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Default Re: Differences between D16Z6 and D16Y8? (RosSi)

OBDI and OBDII
Headgasket.
Intake manifold.
Chamber design.
Cam.
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Old 11-19-2002, 08:50 AM   #3
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

hey spade, anyway we could drill down even more.. like:

Quote:
OBDI and OBDII - requires 2nd O2 sensor, etc...
Headgasket. different material? thicker?
Intake manifold. y8 has a larger design, etc...
Chamber design.
Cam.
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Old 11-19-2002, 09:04 AM   #4
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Default Re: Differences between D16Z6 and D16Y8? (brcivic411)

Yup.

Y8 has thinnest D series head gasket.
OBDII..different distributor Second O2 sensor, Knock sensor, all the pain in the *** crap you don't want to deal with when attempting to tune an engine.
Y8 larger runners that are slightly shorter.
Chamber: smaller and more angular for better burn.
Cam: Slightly longer duration. 1-2 degrees.
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Old 11-19-2002, 11:11 AM   #5
 
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

Click the image to open in full size. Click the image to open in full size.
The Z6 has the better bottom end while the Y8 has the better up top. Honda made that Z6 block stronger and the Z6 has the wonderful and tunable P28 ECU. The Y8 has the better tranny. The gears are closer on the Y8. That's all that I can think of right now. I'm sure there's a lot more, and I'm sure the gurus of H-T know them.
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Old 11-19-2002, 11:30 AM   #6
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Default Re: Differences between D16Z6 and D16Y8? (SILINITY16)

so is there an advantage to swapping in a y8 tranny over my stock Z6?...thanks...
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Old 11-19-2002, 11:33 AM   #7
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Default Re: Differences between D16Z6 and D16Y8? (haloseven)

Quote:
so is there an advantage to swapping in a y8 tranny over my stock Z6?...thanks...
NOt worth it. Get a SRR final drive kit.
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Old 11-19-2002, 11:39 AM   #8
 
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

I agree. The tranny is better, but not that much better. I don't have the tranny because I swapped trannies. I have it because it came with the engine and car. The SRR would probably be a better choice.
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Old 11-19-2002, 12:06 PM   #9
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Default Re: Differences between D16Z6 and D16Y8? (SILINITY16)

How exactly did they make the Z6 block stronger ?
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Old 11-19-2002, 12:11 PM   #10
 
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Default Re: Differences between D16Z6 and D16Y8? (X2BOARD)

Quote:
How exactly did they make the Z6 block stronger ?
Rods are beefier basically.

As far as up top, I think the z6 doesn't fare so well in terms of quench zones and it handles combustion gases less efficently than the Y8.
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Old 11-19-2002, 12:26 PM   #11
 
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Default Re: Differences between D16Z6 and D16Y8? (Hadji)

Click the image to open in full size. Click the image to open in full size. Well said!
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Old 11-19-2002, 12:29 PM   #12
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Default Re: Differences between D16Z6 and D16Y8? (SILINITY16)

you guys amaze me Click the image to open in full size.
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Old 11-19-2002, 12:31 PM   #13
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Default Re: Differences between D16Z6 and D16Y8?

Don't forget you could just get LS rods if you are worried about your Y8 having weak rods.
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Old 11-19-2002, 12:36 PM   #14
 
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

Of course you could, but that would be modifying it. The question was what is the difference between the z6 and y8. It sounds like stock z6 vs stock y8. We all could come up with ways that the two could be improved but that isn't the discussion.


[Modified by SILINITY16, 4:37 PM 11/19/2002]
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Old 11-19-2002, 07:02 PM   #15
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Default Re: Differences between D16Z6 and D16Y8? (SILINITY16)

Good stuff. Thanks guys.
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Old 11-19-2002, 08:44 PM   #16
 
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

Spade, the Y8 trans is the beter trans, and if you are going to auto-x I would reccomend the Y8 trans over the Z6 Trans anyday, teh Z6 Trans has Aluminum shifter forks, and the Y8 is steel, the Z6 has the tendoncy to bend when used hard, even break....

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Old 11-19-2002, 08:49 PM   #17
 
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Default Re: Differences between D16Z6 and D16Y8? (RosSi)

All i could see is both engines are terrible in producing large amounts of horsepower Click the image to open in full size. . I know this because i have the d16z6.
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Old 11-19-2002, 10:19 PM   #18
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Default Re: Differences between D16Z6 and D16Y8? (SILINITY16)

Quote:
Click the image to open in full size. Click the image to open in full size.
The Z6 has the better bottom end while the Y8 has the better up top. Honda made that Z6 block stronger and the Z6 has the wonderful and tunable P28 ECU. The Y8 has the better tranny. The gears are closer on the Y8. That's all that I can think of right now. I'm sure there's a lot more, and I'm sure the gurus of H-T know them.
This I didn't know, at least not the whole story of it.

The SRR final drive kit, more preferred over the Vti LSD equipped transmission or just a greater addition on to the Vti transmission?
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Old 11-20-2002, 02:27 AM   #19
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Default Re: Differences between D16Z6 and D16Y8? (SHAUNTS99)

seems like you guys got every difference.
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Old 11-21-2002, 08:39 AM   #20
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Default Re: Differences between D16Z6 and D16Y8? (HMBCivic)

Quote:
All i could see is both engines are terrible in producing large amounts of horsepower Click the image to open in full size. . I know this because i have the d16z6.
The head is not efficent from factory... a good PnP job will fix that... these motors have been taken to the 400whp mark. Click the image to open in full size.
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Old 11-21-2002, 09:10 AM   #21
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Default Re: Differences between D16Z6 and D16Y8? (X2BOARD)

As I'm sure Mr. Bone will state, the S40 (I think thats the 5G EX) and K4F trannies use the same ratio's, but the 6G trannys are physically stronger internally.
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Old 11-21-2002, 09:11 AM   #22
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

Quote:
Y8 has thinnest D series head gasket.
Thinnest Honda OEM headgasket Click the image to open in full size.
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Old 11-21-2002, 09:18 AM   #23
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Default Re: Differences between D16Z6 and D16Y8? (VTC_boost-less_CiViC)

Quote:
Y8 has thinnest D series head gasket.

Thinnest Honda OEM headgasket Click the image to open in full size.
Man, you just have to nit pick don't you.
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Old 11-21-2002, 09:32 AM   #24
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Default Re: Differences between D16Z6 and D16Y8? (Spade)

can I put a z6 head on a y7 block (OBD-2) if I use a y8 distributor? or is there somethign else that wont match up cause of ODB1/2

I know I should make my own post, I did and I have and no answer...maybe y'all can help me

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Old 03-05-2009, 02:39 PM   #25
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Default Re: Differences between D16Z6 and D16Y8?

ok so can i get opinions which is better? the y8 or z6?
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