Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

Why do I want to raise compression?

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Old Dec 11, 2005 | 09:52 PM
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Modified by zx2gotboost at 12:22 PM 12/23/2005
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Old Dec 11, 2005 | 09:54 PM
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Default Re: Why do I want to raise compression? (zx2gotboost)

the y8 is from the 96 to 00 ex's, and if your boosting you want to lower your compression, so you kinda made your self look ignorant
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Old Dec 11, 2005 | 09:56 PM
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He said he wanted to get some more power until he boosted, so raise CR until then. Higher CR makes the engine more efficient though.
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Old Dec 12, 2005 | 01:31 PM
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Default Re: (SVOboy)

delete me


Modified by zx2gotboost at 12:23 PM 12/23/2005
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Old Dec 12, 2005 | 01:54 PM
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Default Re: (zx2gotboost)

Get the correct head gasket for your motor. a little thicker or thinner gasket isn't going to do squat.
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Old Dec 12, 2005 | 01:57 PM
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Default Re: (Djaric)

delete me


Modified by zx2gotboost at 12:23 PM 12/23/2005
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Old Dec 12, 2005 | 02:26 PM
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Default Re: (Djaric)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Djaric &raquo;</TD></TR><TR><TD CLASS="quote">Get the correct head gasket for your motor. a little thicker or thinner gasket isn't going to do squat.</TD></TR></TABLE>

on H22s the stock head gasket is 30 thousandths (.030) if you get a thinner one, say .015 your compression will bump about .5 points. (10:1 to 10.5:1).

and a bump in compression of this order will give you about a 4-6% increase in torque across the board.

You should see the same % numbers on the SOHC, just working with smaller numbers. I'd say go for it, you're probably only shaving .005 or so (5 thousandths) but if they cost the same who cares. Just remember for every .015 you remove between the cam gears and the crank you're retarding timing about half a degree (calculated with H22 cam gears which are about the same diameter as the D-series ones) so you might loose the power you gained unless you have an adjustable cam gear.

Hope this helps.

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Old Dec 12, 2005 | 02:32 PM
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Default Re: (EGmikeH22)

and Finally WHAT HEAD GASKET IS IT I GET? 1996-00 CIVIC EX OR DX? DX OR EX? wich one???????? I am NON VTEC!!!!!!!!!!!!
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Old Dec 12, 2005 | 02:41 PM
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Default Re: (zx2gotboost)

get a thinner gasket for your application!!!! whatever motor you have!!!
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Old Dec 12, 2005 | 02:43 PM
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Default Re: (SlowAzEg)

ohh my god, what ******* CIVIC has the thinner gasket that will work on my 1.5L SOHC NON VTEC? I rememebr someone saying Civic 96-00 But what modle EX or DX, someone said the EX is VTEC!!! I aM NON VTEC!
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Old Dec 12, 2005 | 02:49 PM
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They are all the SAME, just y8 is thinner but not enough to notice much power on a D15 for the work.


Modified by SOHCD16y8 at 1:27 AM 12/13/2005
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Old Dec 12, 2005 | 04:02 PM
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Default Re: (SOHCD16y8)

aight, I just bough the D16Y8 head gasket, I hope its the SAME match as my D15b7 Cuz My d15b7 is NON VTEC and the D16y8 is Vtec .
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Old Dec 12, 2005 | 04:12 PM
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Default Re: (zx2gotboost)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zx2gotboost &raquo;</TD></TR><TR><TD CLASS="quote">aight, I just bough the D16Y8 head gasket, I hope its the SAME match as my D15b7 Cuz My d15b7 is NON VTEC and the D16y8 is Vtec . </TD></TR></TABLE>
hey fucktard, settle down. Vtec or not makes no difference with your gasket, so stop shitting yourself. The y8 gasket is thinner than the other oem ones and WILL raise your compression (despite what some other moron said). As for what is affected by raising your compression, refer to what h22mike said. You could have had the answer to all of your bitching and moaning alot sooner if you had actually read what the others had told you.
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Old Dec 12, 2005 | 04:25 PM
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are you really going to replace you HG just for a few horsepower? a 4% increase on a 100 horse motor is barely anything to notice
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Old Dec 12, 2005 | 04:53 PM
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ok, here is the freaking deal, I bent some valves on my priveious head, thankfully I have a BRAND new HEAD that I seriously polished the out side and ported & polished the ports, therefore I have to get a new head gasket, so why not get the Y8 gasket? since its off....
by the way, I am sorry for being a damn noob, and for the bumb *** replys, its hard to commmunicate/ understand what peeps are saying by typing. But I DO apprciate yalls help very much!!!! Thank you!
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Old Dec 12, 2005 | 05:02 PM
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wow he answered your question of what model and year to get in the first reply.
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Old Dec 19, 2005 | 07:36 PM
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Default Re: (joe jigga)

How high do you think my compression is right now..? I have
D16Y8 Head gasket, Brand new head with valves and valve job, Adjusted valve lash perfectly, andCylinders honed...?


Modified by zx2gotboost at 9:01 PM 12/19/2005
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Old Dec 19, 2005 | 07:57 PM
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Default Re: (tuck'd98)

btw if you have a d15 a y8 head gasket wont work d15 with d15, d16 with d 16 its as simple as 1+1 plus

your compression will be close to stock compression if not the same, y8 headgasket, wrong one!, brand new valves and valves valve job?? whatever that is? cylinder honing, squat, brings your compression back to stock numbers across the boards no performance gain over stock, valves adjusted perfectly, they should be perfect anyway
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Old Dec 19, 2005 | 08:00 PM
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Default Re: (tuck'd98)

WRONG! my D15B7 has and has had a D16Y8 head gasket for a week now no problems! Its thinner and metal!
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Old Dec 19, 2005 | 08:02 PM
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Default Re: (zx2gotboost)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zx2gotboost &raquo;</TD></TR><TR><TD CLASS="quote">ITS metal! </TD></TR></TABLE>

lol i hope
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Old Dec 20, 2005 | 07:52 PM
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Default Re: (tuck'd98)

1 LAST question............. Timing is oviously off, https://honda-tech.com/zerothread?id=1469420 Will I expletive anything up if I drive it for one more day like this&gt;????
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Old Dec 20, 2005 | 08:19 PM
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Default Re: (zx2gotboost)

get a timing light and adjust it correctly, and it depends how far off your timing is if you to break stuff
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Old Dec 20, 2005 | 08:31 PM
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Default Re: (tuck'd98)

1 pretty sure 1 tooth, possibly 2, but im sure its 1, on the cam timing that it, crank timing is perfect!
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Old Dec 20, 2005 | 08:34 PM
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Default Re: (zx2gotboost)

did you check TDC
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Old Dec 20, 2005 | 08:35 PM
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its scary that this guy is going to boost/swap his car...you arent going to attempt to install the turbo kit and swap the car are you? you definatly need to do some research before you ask stupid questions.

sorry for the assholish comment.
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