Which cams?
Which cams?
Author
Discussion

plasticman

Original Poster:

907 posts

274 months

Wednesday 14th July 2004
quotequote all
I am rebuilding my engine to Red Rose spec but am unsure of which cams to use. Does anyone know the power gains when using the clatter/tuscan cams as opposed to the latter cams and would most people accept the noise given choice ? thanks Dave

joospeed

4,473 posts

301 months

Wednesday 14th July 2004
quotequote all
DON'T USE MY CAMS


you gonna be in on sunday? I'm local and could pop over for the engine ...

davidd

6,666 posts

307 months

Wednesday 14th July 2004
quotequote all
If you are building it to red rose spec, does the spec not tell you what the cams should be?

D

plasticman

Original Poster:

907 posts

274 months

Wednesday 14th July 2004
quotequote all
Joolz ,don't remember saying there were any cams for your engine ! But seriously, I will have to check with my girlfriend to see if she has arranged anything for us/me.
David , tvr power do not specify any particular cam ,they shim and re-time the ones you have which in a 4.5 are unlikely to be clatter cams ,Dave

davidd

6,666 posts

307 months

Wednesday 14th July 2004
quotequote all
Ahh interesting (learning a thing a day etc, which as I'm 35 and a bit means I know about 13067 things).

From what I can gather..

a)there is much bollocks spoken about clatter cams and early cars being quicker**

b)they are not as clattery as one might think

c)they offer no performance gain over hush, hush cams

** Early cars (well mine at least) are lighter than later ones, even the lightweight. Early cars have more restrictive exhaust systems, although most will have been replaced (the backbox I think, care to comment Mr Jspeed?) And they are higher compression. I guess what I'm saying is that I doubt the cam made much difference.
Saying that I'm hoping that someone will come along and say the ultimate Cerbera is an early car, with clatter cams, no cats, nitrons, 17" alloys and scruffy paintwork

D

joospeed

4,473 posts

301 months

Wednesday 14th July 2004
quotequote all
Had this convo with plasticman the other day, I was saying i'd measured no difference between clatter and whisper cams on duration and life, then plasticman told me he'd got two sets of cams there that looked so different it was obvious to the naked eye .. seems there might be more than just two versions of camshaft ..

joospeed

4,473 posts

301 months

Wednesday 14th July 2004
quotequote all
plasticman said:
Joolz ,don't remember saying there were any cams for your engine ! But seriously, I will have to check with my girlfriend to see if she has arranged anything for us/me.
David , tvr power do not specify any particular cam ,they shim and re-time the ones you have which in a 4.5 are unlikely to be clatter cams ,Dave



well if push comes to shove I've got a pair of clattery cams here anyway, one's just starting to break through the case hardening but could be reclaimable

plasticman

Original Poster:

907 posts

274 months

Thursday 15th July 2004
quotequote all
I now have two sets of clatter cams and they look identical to each other and fatter than the late cams.I was going to measure with my DTI but only have 350 thou movement on it. You can judge for yourself soon , Dave