I just installed a Cometic head gasket .078mls thick, also some AEM Tru-time adjustable cam gears on my 99 Honda Civic Si B16a2. long story short, I was told for every .017 of space I lose 1 degree of timing on my exhaust, so that puts me little over 4 degrees. on my AEM cam gears it says each mark = 2 degrees crank, so i would i need to set my cam gear on the second or the fourth mark to make 4 degrees????????????????????? HERE IS A PIC OF THEM

http://sportcompactcarweb.com/...m.jpg


Modified by jdmcivicb16a2sc61 at 10:35 PM 3/15/2006

 

4 degrees would be on the 2nd mark. i would even put it on the third mark (6 degrees) u could try it and see how it feels. mines is on the 3rd mark, very happy with the results. if not just put it back to the 2nd mark. lmk what happens.

 

you have the same headgasket? Whats you compression at? some said mine should be 9.1 now, when i bought it the guy said stock is 10.6:1 and it would bring it down to 8.8:6, but b16 are 10.2:1.


Modified by jdmcivicb16a2sc61 at 11:20 AM 3/15/2006

 

Are you guys dyno tuning to verify the results of adjusting the cam gears? Advancing or retarding a few degrees most likely wont be felt while driving on the street due to the minimal HP gains adjusting cams results in. You might even be losing power and not even knowing it. Just some food for thought.

 

i don't want to feel results i just want my timing as close as possible to stock.

Under the hood
•99’ Honda B16a2
•ACT heavy duty six puck clutch
•Prothane Motor mounts inserts
•Drag High flow 4 into 1 cast iron turbo exhaust manifold
•Precision Sc61 turbocharger assembly
•Turbonetics Deltagate Mark II Wastegate (7 PSI Spring)
•Drag High Flow front mount intercooler
•Greddy Tpye- S Blow Off Valve
•Stainless steel braided oil feed line From Tunertoys.com
•Walbro 255 Lph fuel pump
•Rc 550cc Injectors
•Cometic .078 81mm Head gasket
•Arp headstuds
•AEM Tru-Time adjustable cam gears
•Golden Eagle vacuum manifold



Modified by jdmcivicb16a2sc61 at 11:24 AM 3/15/2006

 

so sorry man, you kinda forgot to mention that ur car was boost-n at first. My b18 is NA, not sure if my specs would work with ur set up, i highly doubt it. i would actually do what the other guy said and have it done at a dyno.

 

it's okay i just need to know if my aem cam gears marks = 2 degrees each or they are 1 degree per mark.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jdmcivicb16a2sc61 &raquo;</TD></TR><TR><TD CLASS="quote">on my AEM cam gears it says each mark = 2 degrees crank,.</TD></TR></TABLE>


you answered your own question

 

thanks, just wanted to confirm it

 

2 marks “4 degrees” duh! advanced....did great.... but I all most gave myself a heart attack... I left the ratchet on the crank pulley and when I went to start the car it whack around and fell off kinking on the ground and man did it sound like I broke some valves off....ppffffff... but it’s all good now thanks guys