16V cam specs

Post Reply
SteffenJ3316V
Posts: 130
Joined: Thu Jan 30, 2014 1:12 pm
Location: Denmark

16V cam specs

Post by SteffenJ3316V »

Does anyone have the specs on standart 16V camshafts?

vecchioalfa
Posts: 433
Joined: Tue Apr 22, 2014 1:09 pm
Location: Nottingham

Re: 16V cam specs

Post by vecchioalfa »

SteffenJ3316V wrote:Does anyone have the specs on standart 16V camshafts?
You might find it all here mate:

http://alfaromeo33.extra.hu/

SteffenJ3316V
Posts: 130
Joined: Thu Jan 30, 2014 1:12 pm
Location: Denmark

Re: 16V cam specs

Post by SteffenJ3316V »

Thanks mate but it's 2500 pages and I can't find it there :)

SteffenJ3316V
Posts: 130
Joined: Thu Jan 30, 2014 1:12 pm
Location: Denmark

Re: 16V cam specs

Post by SteffenJ3316V »

There is no cam specs in that materiel :( Only minimum lift. Anyone knows the duration etc?

User avatar
KevJTD
Posts: 5112
Joined: Thu Sep 26, 2013 8:48 pm
Location: Lincs

Re: 16V cam specs

Post by KevJTD »

SteffenJ3316V wrote:There is no cam specs in that materiel :( Only minimum lift. Anyone knows the duration etc?

found it ;)
Attachments
33_timing.jpg
Giulietta JTD 170
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS

I'm bad with people things
But I should have tried more

SteffenJ3316V
Posts: 130
Joined: Thu Jan 30, 2014 1:12 pm
Location: Denmark

Re: 16V cam specs

Post by SteffenJ3316V »

Thanks Kev :) I did find that but i don't know what to do with that information. What I'm looking for is how much they lift the valves eg 10 mm and the duration on the cam eg 282* @ 0,1 ,mm lift :)

User avatar
KevJTD
Posts: 5112
Joined: Thu Sep 26, 2013 8:48 pm
Location: Lincs

Re: 16V cam specs

Post by KevJTD »

from the pics the diagram can be followed to calculate the cam duration.
so for example,
inlet cam lobe "a" starts at 8 degs before top dead centre (tdc), continues through 180 degs and finished at point "b" 48 degs after bottom dead centre (bdc) although there is a mis-print in the diagram spec as it lists it being after tdc which is wrong.

so the specs are

inlets
236degs & 263degs (both lobe pairs are timed differently, start/close & duration)

exhausts are both 244degs although they open & close at different points

valve lift is also different per lobe on inlet side, one is 9mm & the other 9.5mm
exhaust lift is 9.2mm on both lobes
Attachments
cam lift.png
Giulietta JTD 170
Lancia Delta integrale
Lancia Flavia coupe 1.8 1963
Lancia Dedra turbo
Renault Clio 197 RS

I'm bad with people things
But I should have tried more

SteffenJ3316V
Posts: 130
Joined: Thu Jan 30, 2014 1:12 pm
Location: Denmark

Re: 16V cam specs

Post by SteffenJ3316V »

Thanks Kev :) You're a star :mrgreen:

Post Reply