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biper

Original Poster:

1,204 posts

86 months

[news] 
Monday 18th June 2012 quote quote all
Can anyone advise of the cam timing on a STANDARD cam for a 500. I have been given two different figures.
Thanks
Barrie

debaron

556 posts

66 months

[news] 
Monday 18th June 2012 quote quote all

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

Original Poster:

1,204 posts

86 months

[news] 
Tuesday 19th June 2012 quote quote all
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

5,024 posts

133 months

[news] 
Tuesday 19th June 2012 quote quote all
112. use a vernier if not fitted

A

x works

36 posts

40 months

[news] 
Tuesday 19th June 2012 quote quote all
Yes 111.25 works well ,we do all at that no problems.
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domV8

705 posts

50 months

[news] 
Wednesday 20th June 2012 quote quote all
111.25 from Dom, when I fitted my TVR885 cam...

biper

Original Poster:

1,204 posts

86 months

[news] 
Wednesday 20th June 2012 quote quote all
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

705 posts

50 months

[news] 
Thursday 21st June 2012 quote quote all
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

Original Poster:

1,204 posts

86 months

[news] 
Friday 22nd June 2012 quote quote all
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.
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