Setting proper timing using timing light (adj. cam gear and milled head) - D-series.org

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Old 05-29-2010, 08:58 PM   #1 (permalink)
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Default Setting proper timing using timing light (adj. cam gear and milled head)

I have a d16y8 block with a d16z6 head. I sent the head to be milled 0.040" and when I got it back I realised the head had been milled a good amount before, at least 0.020". After I put it on my block I used my oem z6 cam gear. The car was very slow below 4000 and pulled hard all the way to the rev limiter. I maxed out my timing on my distributor and the car ran better, but still was very sluggish below 3000 rpms. I grinded the holes on my distributor to advance it a bit more and car pulls hard, ran 15.1 @ 89 mph in a 4 door EF but I feel it isnt at its best.
I figured the best way was to get an adjustable cam gear and strobe light to check timing. I have an adjustable cam gear from 96-00 and a base model strobe timing light. I know I have to advance the cam gear 4.75'' to compensate for the difference between z6 and y8 cam gear.

How do I set correct cam timing with my strobe light?
do I have to loop the connector on the passenger side under the dash?

I have access to these manuals but it doesnt show, anybody has a link to better manuals?

http://files.clubcivicquebec.com/Man...ice_Manual.pdf

http://files.clubcivicquebec.com/Man...ice_Manual.pdf

thanks
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Old 05-30-2010, 08:38 PM   #2 (permalink)
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anyone?
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Old 05-30-2010, 08:39 PM   #3 (permalink)
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are you asking how to use the timing light or what timing to set for your specific motor setup?

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Old 05-30-2010, 08:48 PM   #4 (permalink)
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how to use timing light to set my specific motor setup.
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Old 05-30-2010, 08:48 PM   #5 (permalink)
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You have to get the mechanical timming correct .then do your spark time.Without knowing how much was taking of the head exactly you can only guess at what to set your cam gear at.Maybe try a search to see where the stock cam is degreed at and degree your cam.That will set your base time correct.Then you ignition timing can be set by light.If not search and find how many deg is changed in mech timming per thou of an inch milling.And set your gear from there.Good luck.
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Old 05-30-2010, 08:52 PM   #6 (permalink)
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Thank you for the information.
So the only way to set proper mechanical timing is by degreeing or can I ''guess'' it and check it with my timing light then make adjustments?
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Old 05-30-2010, 08:56 PM   #7 (permalink)
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search man.Theres a number for how many degreees for thous off milling that your cam timming changes.
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Old 05-30-2010, 08:58 PM   #8 (permalink)
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One threads enough btw
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Old 05-30-2010, 09:34 PM   #9 (permalink)
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Quote:
Originally Posted by vtec8200rpms View Post
I have a d16y8 block with a d16z6 head. I sent the head to be milled 0.040" and when I got it back I realised the head had been milled a good amount before, at least 0.020". After I put it on my block I used my oem z6 cam gear. The car was very slow below 4000 and pulled hard all the way to the rev limiter. I maxed out my timing on my distributor and the car ran better, but still was very sluggish below 3000 rpms. I grinded the holes on my distributor to advance it a bit more and car pulls hard, ran 15.1 @ 89 mph in a 4 door EF but I feel it isnt at its best.
I figured the best way was to get an adjustable cam gear and strobe light to check timing. I have an adjustable cam gear from 96-00 and a base model strobe timing light. I know I have to advance the cam gear 4.75'' to compensate for the difference between z6 and y8 cam gear.

How do I set correct cam timing with my strobe light?
do I have to loop the connector on the passenger side under the dash?

I have access to these manuals but it doesnt show, anybody has a link to better manuals?

http://files.clubcivicquebec.com/Man...ice_Manual.pdf

http://files.clubcivicquebec.com/Man...ice_Manual.pdf

thanks

y8 cam w/ z6 sprocket, z6 cam w/ y8 sprocket

You need to retard the 96-00 adjustable camgear, your setup is basically a Z6 head with a Y8 adjustable camgear....

First, adjust the camgear timing, second adjust ignition timing!
Check the Page 23-105 of the 96-00 service manual to adjust the ignition timing!
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