Hey there!
I am from Germany and I bought the bisimoto stage 2.4 turbo cam for my z6 engine couple of years ago. Know I changed to Vitara pistons with custom rods, so I have to degree my cam new. Last time I had it done by an American Honda enthusiast who now is back in the US and I can't get in touch with him. Can you help me with some advice?
I couldn't find any good help in the internet, because all the videos/descriptions are for dohc engines...
Hope to get an answer soon!
Merry Xmas from Germany
Johannes

 

Remove the timing belt and set the crank pulley to TDC piston 1. Then, line up cam pulley as shown in the middle illustration, reinstall and tension the belt.

 

Hey thanks for the fast reply txdragon!
But that is not my problem. How to degree with the OEM degree wheel I know. Maybe my question was not clear enough. So here's my problem:
Z6 head with bisi stage 2.4 z6 turbo cam
AEM adjustable cam gear (for z6 cam)
Y8 block with Vitara pistons and p2p0 custom rods
and a cam card with a lot of numbers...
And that is where my knowledge ends. Translation into German is no problem, but I don't know which numbers to use for degreeing the cam, valve lift correctly. I got all the equipment that is needed and I measured the TDC with the Piston stop method. And from there on I'm not sure how to go on...

 

If you are asking if you should retard or advance the cam gear after TDC, you should still just set it to zero and advance or retard as needed on the dyno. I have a comp cam and ran it 2 degrees advanced with base timing at 18 for a little bit, but, it might be different with the Bisi cam.

 

So you say I only have to put everything back together and zero my camgear and do the rest on the Dyno?
But what do the numbers mean?
For example intake opens 13 degree before TDC.
i know I have to check the valve timing with zero valve lash @ 0.050 valve lift. So is it correct that if I bring my engine to TDC, zero my cam, put the belt on and than turn my crank by hand the intake valves of my first zylinder have to be open for 0.050 inch at 13 degree before TDC?

 

On paper, yes. BUT.. You would have been better off getting valve to piston clearances with those Vitaras using this cam before you assembled everything. Im not sure how good their valve relief cuts are; depth and position, etc. It would be even better if checking that clearance is still an option for you.

The cam spec numbers help you determine the valve opening events; how far and for how long.

 

[QUOTE=Txdragon;52071557]
On paper, yes. BUT.. You would have been better off getting valve to piston clearances with those Vitaras using this cam before you assembled everything. Im not sure how good their valve relief cuts are; depth and position, etc. It would be even better if checking that clearance is still an option for you. [\QUOTE]
That's a good idea! I'll check the clearance with clay. That's no problem cause the head and the block aren't married yet.

Are those numbers only for information or do I have to"do" something with them?

 

I got it close by "bumping" the key to rotate it. I was being lazy today, lol! I circled the mark that lines up on the upper cover with the adv/ret numbers being up top.

 

Thanks for the Pic!

 

I would let someone knowledgeable do the timing adjustment. That's being honest, OP.

 

Hey guys! Thank you for your help so far! One last questions: do I have to do the timing with vtec locked in?

 

No.

 

Thank you for your help!

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That's my car!

 

For timing, no. But you would lock the vtec if you were claying the motor to know your piston to valve clearance.

In answer to your previous question, what you do with those numbers is know how much room there is to play if any or if it's too much and you are already doomed to piston/valve contact. It gives a tuner an idea of what he's dealing with when setting mechanical timing with the variable cam gear(s). The reason why this information is important is these are interference motors, which means there is possibility of piston/valve contact if not setup/built properly.

 

Txdragon is correct in saying "No" if what the OP was referring to was setting the mechanical timing belt timing. IF however the OP was referring to "degreeing" the camshaft, the answer is Yes. The specs on the cam card that was posted above are those of the VTEC lobe, so you MUST lock the rockers to the VTEC lobe in order to get the correct open/close measurements at .050".

 

^^ ****.. I didn't think about that.. Good catch!