VTR cams V's Varadero cams

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tony.mon
Posts: 16275
Joined: Wed Jul 25, 2007 10:46 pm
Location: Norf Kent

Re: VTR cams V's Varadero cams

Post by tony.mon »

Stephan wrote:Tony: sorry, yes, for a pair. Actually it is 2000 czk per each cam. Forex is kind to you :) plus few quids for fuel. There is picture in my thread.
Cams have motorcycle profile suitable for high rpm.
Don't worry yourself, matey: I already have a picture of fuel.
I am liking the high rpm, though, as I already have enough low rpm grunt.

What am I saying ?!?!

There's never enough low end grunt. :twisted:
It's not falling off, it's an upgrade opportunity.
tony.mon
Posts: 16275
Joined: Wed Jul 25, 2007 10:46 pm
Location: Norf Kent

Re: VTR cams V's Varadero cams

Post by tony.mon »

Stephan wrote:Tony: sorry, yes, for a pair. Actually it is 2000 czk per each cam. Forex is kind to you :) plus few quids for fuel. There is picture in my thread.
Cams have motorcycle profile suitable for high rpm.
Don't worry yourself, matey: I already have a picture of fuel.
I am liking the high rpm, though, as I already have enough low rpm grunt.

What am I saying ?!?!

There's never enough low end grunt. :twisted:
It's not falling off, it's an upgrade opportunity.
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Stephan
Posts: 983
Joined: Sun Apr 15, 2012 6:58 pm
Location: Prague, Czech

Re: VTR cams V's Varadero cams

Post by Stephan »

Tony: I mentioned because car and moto profile is different. Car has faster opening, causing troubles in moto engines, and cannot be used.
Fuel cost is just few quids, about 10 pounds, he is in Prague :)

Varastorm: not much to say, look at page 3, pimp my ride, thread red storm.
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Stephan
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Joined: Sun Apr 15, 2012 6:58 pm
Location: Prague, Czech

Re: VTR cams V's Varadero cams

Post by Stephan »

Varastorm: but if you are at it, and will play with cams timing, I would do head skimming as well as some minor head work, and you will have semi stage1 engine :-) All you need is just to set new timing, and measure valve to piston clearance. After that, skimm the heads to get minimal clearance 1.3 mm IN and 1.6 mm EX. Dont worry it will be too much, to get compression 11:1 on storm engine, you have to skimm at least 1 mm :-)

I would swap stock IN cams for EX (IN have slightly more valve lift), and use new reground cams for IN, my suggested timing:

Open/Close/Lift (mm)/duration
IN: BTDC 22/ABDC 54/10.2/256
EX: BBDC 52/ATDC 13/10.3/245

valve overlap would be 35, same as stock. I believe this would be good for low end grunt.

I just write it so detailed to follow it later, I have passion to do another mild tuned engine in future :-)
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