Hello,

I was wondering if anybody has any info on this particular grind.

I was after the timing numbers. Their website says 275 degrees intake and 284 exhaust... and states the lift and everything else.. but they don't provide any timing numbers.

I have emailed them twice, and the guy replying seems to be happy to sell them, but not so interested in answering questions.

I understand that its ""basically"" an older version of the APT VP3, but the duration and lift numbers differ... and just because it has "similar" duration it doesn't mean it will be anything like the VP3.

http://www.camtechcams.com.au/mini_4cyl.html

Any more info would be appreciated

Thanks

Just to clarify, thats timing numbers as in when the valves open and close.... cheers

Hi Phat,
I ran one of these for 45,000 miles then 3 of the lobes wore off it..
The lobes are a bit pointy for long life...
Not a bad cam, but I got more HP with an RE13, and better torque too.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Hi Doc,

Thanks for replying, I remember you mentioning a while ago that you used this cam once before. I'm a bit sus on the oil, the followers or the hardness (or lack of hardness) in the lobes.... they shouldn't be rubbing themselves down on the followers... infact they shouldn't be rubbing on the followers at all.

Its a pain in the back side isn't it when you fork out cash for something and it doesn't last hey

You don't remember what the numbers were though do you?

Thanks

PK,
From my maintenance log:
OCT '97 FITTED CAMTECH `VP3' (aka 619) CAMSHAFT & NEW FOLLOWERS, 10deg CAM KEY.

From my Camtech hard copy sheet of that vintage, the 619 has an LCA of 106°.
I would have timed it in at 106°ATDC (I have a belt drive kit), but with a duplex chain I would have gone for 104°, to allow for some chain stretch.


Hope this helps..

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Thanks for digging that up Doc... thats what they've got on their site too... I guess I'll just keep hounding them for complete timing figures (opens at... closes at etc)

Thanks have a good night

I have run one of these cams it was a 619 Scatter figures as follows
Inlet Exhaust
Advertised Duration 275 284
Duration @0.050"cam lift 232 241
Lift @ Cam .308" .318"
Cam lift @TDC .092"
Intake centre line 102Deg ATDC
Lobe separation angle 103Deg 106Deg

_________________
4efte powered Clubman
supercharged 998 race car

I have all the figures here:
VP3 (619) NON scatter.

cam lift: in .309" ex .319"
duration: in 263° ex .275°
duration @ .050": in 232° ex 243°
lift @ TDC at valve: in .092" ex .082"
tappet clearance: in .020" ex .020" (originally they listed .018" for inlet)
timing figures in 27-56 ex 68-27
LCA 106°

any more info, ask.

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R.

Doc you are a champion thank you very much for digging that up. That's all that I was after, I had everything else but those numbers

Jeeez, you'd think that the guys a camtech could have just looked that up and sent it, but oh well.

Thanks very much, and thank you too 92.

Have a good one guys