Cam Timing

[biper]

Can anyone advise of the cam timing on a STANDARD cam for a 500. I have been given two different figures.
Thanks
Barrie

[debaron]

Seems you're not alone!

From what I can see it might be a 885 or a 214/234 or a 435!!


http://pistonheads.co.uk/xforums/topic.asp?h=0&amp...

A call to Dom @TVR power might be best.


Regardless of what you have - when timing in the cam the figures you need are the crank degrees advance from TCD @ .050" cam lift

Don't use the LCA method to set it as this assumes that you have symmetric lobes which is not always the case.

HTH

Ryan

[biper]

Thanks for the reply. I will have to take the value given by TVR Power @ 111.25 BTC. The other option was 116.
Barrie

[Guillotine]

112. use a vernier if not fitted

A

[x works]

Yes 111.25 works well ,we do all at that no problems.

[domV8]

111.25 from Dom, when I fitted my TVR885 cam...

[biper]

Thanks chaps. Not fitting a new cam, but having to re-time the one that is in the engine. All due to a broken crank pulley bolt.
Barrie

[domV8]

I would like to see the changes to the torque curve if you retarded the cam timing by say 3 degrees... A before-and-after overlaid plot would be interesting.

[biper]

domV8 said:

I would like to see the changes to the torque curve if you retarded the cam timing by say 3 degrees... A before-and-after overlaid plot would be interesting.

Only plan on doing it once, if it were a 1300 kent engine it would be worth playing with, but it is to much hassel with RV8.