I need a Y8 head
11-13-2006, 12:23 PM
#11
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Join Date: Feb 2003
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Re: I need a Y8 head
The D16Y oil pump is the only structural problem with the Y8.
The timing issue doesn't exist. It takes just as much work to set the timing and tune a Y8 as it does a Z6. The problem is people don't understand how to use a timing light, or expect an ignition map off a Z6 or a LS6 Corvette to plug and play with their Y8.
The timing issue doesn't exist. It takes just as much work to set the timing and tune a Y8 as it does a Z6. The problem is people don't understand how to use a timing light, or expect an ignition map off a Z6 or a LS6 Corvette to plug and play with their Y8.
11-13-2006, 01:02 PM
#12
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Join Date: Mar 2003
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Re: I need a Y8 head
not everybody wants to have to tune their car on a dyno with a stethescpoe to get the timign right. the p28 maps are already there to use with the z6 head. i had a big enough headache with my old y8 to not want to use one again. guess it's just a personal preferance.
11-13-2006, 02:35 PM
#13
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Join Date: Feb 2003
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Re: I need a Y8 head
Originally Posted by jeffsciv23
not everybody wants to have to tune their car on a dyno with a stethescpoe to get the timign right. the p28 maps are already there to use with the z6 head.
11-13-2006, 02:43 PM
#14
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Join Date: Mar 2003
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Re: I need a Y8 head
oh ok, last time i was looking you were pretty much telling everybody to quite askign you and that you were done with it. good to know you shared your research and hard work with the normal people. kinda wish i still had my old car so i could try them out.
11-13-2006, 10:28 PM
#15
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Join Date: May 2003
Posts: 6,279
Re: I need a Y8 head
Originally Posted by jeffsciv23
that still doesn't make up for the horrible timing problems with the Y8 head and dizzy. i will never owne another motor wiht a y8 head as longa as i owne a honda. why woudl you want more compression?
11-13-2006, 10:52 PM
#16
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Join Date: Feb 2003
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Re: I need a Y8 head
Sorry if you got screwed on that deal, but I for a week there I averaged ten messages per hour from people who kept asking me if they *really* needed timing lights, etc. And, really, it's not terribly hard to understand that you have to synch ignition maps to ignition timing. SOHC_MShue and ElSpool and others have been saying the Y8 doesn't like timing for *years*.
11-13-2006, 11:24 PM
#17
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Join Date: Aug 2005
Posts: 1,654
Re: I need a Y8 head
Originally Posted by jeffsciv23
not everybody wants to have to tune their car on a dyno with a stethescpoe to get the timign right. the p28 maps are already there to use with the z6 head. i had a big enough headache with my old y8 to not want to use one again. guess it's just a personal preferance.
Originally Posted by Joseph Davis
Sorry if you got screwed on that deal, but I for a week there I averaged ten messages per hour from people who kept asking me if they *really* needed timing lights, etc. And, really, it's not terribly hard to understand that you have to synch ignition maps to ignition timing. SOHC_MShue and ElSpool and others have been saying the Y8 doesn't like timing for *years*.
11-14-2006, 11:21 AM
#19
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Join Date: Mar 2003
Posts: 0
Re: I need a Y8 head
Originally Posted by JDMFantasy2K
kinda of ironic because i believe i tuned my Y8 with crome using a basemap i got from you :P haha
Originally Posted by Donald125
LOL u think i am serious?? LOL
Originally Posted by Joseph Davis
Sorry if you got screwed on that deal, but I for a week there I averaged ten messages per hour from people who kept asking me if they *really* needed timing lights, etc. And, really, it's not terribly hard to understand that you have to synch ignition maps to ignition timing. SOHC_MShue and ElSpool and others have been saying the Y8 doesn't like timing for *years*.
11-14-2006, 11:35 AM
#20
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Join Date: May 2005
Posts: 0
Re: I need a Y8 head
Originally Posted by Joseph Davis
Go try that with a T3/T04E and shoot for 300. Hell, ---- 300, try breaking 200. Yanking timing on the 10 psi scalar from 12 degrees to 7 degrees made 27 whp on a heat soaked engine.
If you look at the Y8 combustion chamber matched with the Y8 pistons, you'll see that it has very nice quench areas. The flame front propagates very quickly in this engine. Too much timing on this motor is very easy.
I spun a rod bearing on my Y8 from running to much timing. I took over a year, but that made it more evident as to what was going on. I was only pushing maybe 150whp, but most of the top rod bearings were pretty worn from over advanced ignition timing.
JD seams to have done nice work with the Y8. I'd take his advice like the bible.
Using Vitara's with this head "should" get rid of all that quench, so more timing "should" be possible. JD, what pistons combos have you tried on the dyno with this head?
