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How do you tell which cam is exhaust vs intake?

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  • How do you tell which cam is exhaust vs intake?

    Assembling a turbo'd LQ1 in my fiero... how do you tell which cam is exhaust vs intake?

    I found that its easy to figure out the front bank on the 96+ as the carrier has the hall effect cam sensor on the intake side of the carrier and the appropriate cam has a trigger notch and the notch is 180deg from TDC on the exhaust stroke of the #4 cylinder lobes thereby putting it in synch with the #1 cyl TDC compression stroke.

    Therefore as long as the lobe splay is opposite on the rear bank for cyl #1 TDC compression as compared to the lobe splay on the #4 cyl TDC compression stroke due to opposing banks I should have them properly laid out.

    Markings on the rear bank cams.

    Assumed Rear bank intake cam:
    2188 and CWC above journal #1 from cam gears
    20 and (05 or C5) above journal #2
    D2 and C2 above journal #3

    Assumed Rear bank exhaust cam
    2182 and CWC above journal #1 from cam gears
    16 and F5 above journal #2
    D2 and C2 above journal #3

    For verification does anyone have a set of 96+ cam carriers laying about with the cams installed?
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