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Omnitech 510 (In) & 480 (ex) cam timing & tappet clearances

PostPosted: Thu Jan 15, 2015 12:31 pm
by SJ Lambert
What's the best clearance settings?

Re: Omnitech 510 (In) & Omnitech 480 (ex) cam tappet clearan

PostPosted: Thu Jan 15, 2015 1:06 pm
by pharriso
Have you called OmniTech?

Contact details are here - http://omnitech-engineering.com/contact-us

Re: Omnitech 510 (In) & Omnitech 480 (ex) cam tappet clearan

PostPosted: Fri Jan 16, 2015 12:23 am
by rgh0
I run 8 thou on inlets and 10 thou on exhausts.

cheers
Rohan

Re: Omnitech 510 (In) & Omnitech 480 (ex) cam tappet clearan

PostPosted: Tue Jan 20, 2015 4:36 am
by SJ Lambert
Do you have a preferred set of cam timing settings Rohan?

Re: Omnitech 510 (In) & 480 (ex) cam timing & tappet clearan

PostPosted: Tue Jan 20, 2015 6:14 am
by rgh0
I have not used the cam combination you are using so I would go by Johns recommendations.

cheers
Rohan

Re: Omnitech 510 (In) & 480 (ex) cam timing & tappet clearan

PostPosted: Tue Jan 20, 2015 7:04 am
by SJ Lambert
He's given me a couple so I better gauge them both

Re: Omnitech 510 (In) & 480 (ex) cam timing & tappet clearan

PostPosted: Tue Jan 20, 2015 9:06 am
by rgh0
Yes he typically quotes a maximum power setting and maximum torque setting so you need to accommodate that sort of range if your going to experiment with timing

cheers
Rohan

Re: Omnitech 510 (In) & Omnitech 480 (ex) cam tappet clearan

PostPosted: Sun Mar 08, 2015 9:13 am
by SJ Lambert
rgh0 wrote:I run 8 thou on inlets and 10 thou on exhausts.

cheers
Rohan



I'm supposed to be going with 6 & 7 (+-1).......................

Re: Omnitech 510 (In) & 480 (ex) cam timing & tappet clearan

PostPosted: Sun Mar 08, 2015 10:26 am
by rgh0
According to Clive, Johns cams have take up ramps to suit a nominal 10 thou clearance. You can use less clearance if you want. The exhaust clearances close up a few thou when hot and the inlets stay the same or maybe increase a little. Johns recommendations are safe, mine are just a little more conservative :D

cheers
Rohan

Re: Omnitech 510 (In) & 480 (ex) cam timing & tappet clearan

PostPosted: Mon Mar 09, 2015 6:55 am
by SJ Lambert
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Oh my aching fingers, that was fun, not!