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Camshafts
http://ducatittandf1.com/viewtopic.php?f=10&t=11388		 Page 1 of 1
Author:  RaoulD [ Thu Jul 14, 2016 7:46 am ]
Post subject:  Camshafts
Hi,

my planning is getting more precise and the questions get numerous :roll:

Base engine is 1992 750 with both carbs to the front

Will be used with 40mm Dellortos on short intake flanges

Heads will receive porting and slightly bigger valves than original (41/35)

Will get forged pistons and compression ratio of about 1:10

Will only be raced, hence top end power is what I am looking for, but should stay kinda realiable, so no astronomic rpm figures also

Any suggestions and the info where to buy.

Ducati Kämna in Germany is supplying cams but they ask for 900€ which seems a bit steep. Bought race cams for a Lancia Delta Integrale 16V for half the money

Raoul
Author:  huit [ Fri Jul 15, 2016 6:10 am ]
Post subject:  Re: Camshafts
Try Ed millich@ducpower.com they are around 400 usd
Happy hunting!
Paul
Author:  618F1 [ Fri Jul 15, 2016 10:57 am ]
Post subject:  Re: Camshafts
If you have patience you can watch for a set of used 900SS cams for sale on eBay, but they have become scarce. Slightly better are used ST2 cams, which are more scarce. Both have a lot more valve lift and longer duration than any stock 750 cam. A fellow in the US has some Montjuich-spec cams for sale on eBay now, but at $1,100US. These have much longer duration and notably higher lift than stock. Vee Two used to sell a variety of camshaft; most seem to have VERY high lift, but not much increase in duration. Not sure what the cams you mentioned are, but if new the price might be at market today.

You should find Bike Boy's (Brad) cam chart and decide what kind of engine you are building, simplistically, is it high lift or long duration in character? And it will keep you from buying from those who list all Ducati 2-valve cams as the same.

MikeV
Author:  618F1 [ Fri Jul 15, 2016 10:57 am ]
Post subject:  Re: Camshafts
Deleted double posting. Once is enough.

MikeV
Author:  RaoulD [ Wed Jul 27, 2016 7:02 am ]
Post subject:  Re: Camshafts
I have to compare lift and duration, need to find reliable info on the cams you mentioned.
Without knowing I am just a bit suspicious if these stock cams can supply me with the needed air at higher revs for a race engine.

Raoul
Author:  fmcd92 [ Thu Jul 28, 2016 10:05 pm ]
Post subject:  Re: Camshafts
Raoul,

"...Base engine is 1992 750 with both carbs to the front"

What??

Cheers,

fmcd
Author:  RaoulD [ Wed Aug 03, 2016 4:39 am ]
Post subject:  Re: Camshafts
Was written in quite a hurry, it was supposed to mean that I am using an engine with no reversed head, a newer one from a 750 SS

Raoul
Author:  ian charlton [ Wed Aug 03, 2016 11:44 am ]
Post subject:  Re: Camshafts
RaoulD,just to be clear,Old engines to1990 have both exhausts facing forward,New ,later engines have front exhaust forward,rear exhaust backward(with both carbs in the middle),and these have smaller diameter S/Arm spindle.Cheers.
Author:  RaoulD [ Sat Aug 06, 2016 7:41 am ]
Post subject:  Re: Camshafts
Thanks Ian,

I know, that's why I specified the engine I am using
Raoul
Author:  brad black [ Sun Aug 21, 2016 5:15 am ]
Post subject:  Re: Camshafts
working back from higher rpm capability, imo.

vee two 212
900 ie
st2
900 carb
vee two 210
750
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