VTR cams V's Varadero cams

[Varastorm]

Thought that I would post the differences of the cams dimensions.

The Haynes manual lead me to believe the lift was the same for both engines because it only stated two measurements for inlet @ (40.080 - 40,240) & exhaust @ (39.780).

The lift stated in the Haynes is only the VTR cams lift.

I didn't realise this till after the swap was complete & I was measuring them up to compare them. It could of caused spring bind & all sorts of problems, but so far so good.

I feel am taking a risk by only running the single valve spring that the Varadero is fitted with Std. But the rev limit is lower so hopefully I will not encounter valve bounce.

The measurements are taken from the removed Varadero cams (15,000 miles) & a spare set of VTR cams (unknown mileage) from a spare head I have.

Varadero cam lobe diameter --- Inlet----- 38.85mm
--------------------------------------- Exhaust- 38.85mm
Varadero base circle diameter - Inlet----- 30.00mm
--------------------------------------- Exhaust- 30.20mm

VTR cam lobe diameter --------- Inlet---- 40.20mm
-------------------------------------- Exhaust- 40.30mm
VTR base circle diameter ------- Inlet---- 30.20mm
-------------------------------------- Exhaust- 30.40mm

I know this is of no use to the majority of Firestorm owners, but I though because its had not been posted on the forum it might be of some interest.

[bigtwinthing]

thats given me a right old "lobe on" Cam off it

[Varastorm]

thats given me a right old "lobe on" Cam off it

I cam ere to be serious

[tony.mon]

Suggest that you also swap the valve springs from the Storm, they should fit the Vara head.
You also need the upper and lower spring holders; they're stepped to hold both springs.
But before buying some check that the Vara ones aren't the same and already have the steps.

Check part numbers to be sure.

[Varastorm]

Suggest that you also swap the valve springs from the Storm, they should fit the Vara head.
You also need the upper and lower spring holders; they're stepped to hold both springs.
But before buying some check that the Vara ones aren't the same and already have the steps.

Check part numbers to be sure.

I am thinking the same Tony, I still haven't taken it for a ride yet (man flue)

Like I mentioned above, the extra lift has me a little worried about possible valve float & piston to valve contact at high rpm.

I did cross referenced the VTR outer & Varadero springs prior to fitting the cams & decided to take a chance, but the extra lift does have me concerned.

Thanks for the suggestions

[sirch345]

Cheers for posting Phil, good to see the differences,

Chris.

[tony.mon]

By the way, if you need some, I have a few...

[Varastorm]

By the way, if you need some, I have a few...

Thanks for the offer Tony, I might take you up on that

BTW, For those who are interested in different camshafts, I have been following these >--

vtr1000 yoshimura camshafts YOSHI and cylinder heads

eBay item number: 231542185633

They are still there for the taking, too much coin for me though

Might be of interest if you have deep enough pockets..

I searched the original sellers completed listings & these things have been up a few times 3 or 4...

Chap called Loyd seems to of pointed him in the right direction to identify them

[lloydie]

No I didn't ..
They are not yoshi cams , I've told him I can't confirm what they are .
I asked him to look on the cam wheel face to see if they have the yoshi inscription like mine do then the seller noticed the X2 engraved on them ,
What the seller is saying Ive confirmed is the location where to look for the id of the cam .
I've asked the seller to amend the listing as its confusing and misleading .


Lube, no lube, it's your choice .

[Varastorm]

No I didn't ..
They are not yoshi cams , I've told him I can't confirm what they are .
I asked him to look on the cam wheel face to see if they have the yoshi inscription like mine do then the seller noticed the X2 engraved on them ,
What the seller is saying Ive confirmed is the location where to look for the id of the cam .
I've asked the seller to amend the listing as its confusing and misleading .


Lube, no lube, it's your choice .

I never said it was you Lloydie, I thought it though some chap called Loyd not Lloydie.

Looks as if he's going to make a few quid. Very clever wording, but someone is going to be upset.

Anyone any Ideas what they actually are?

They do have quite a fat profile, so they don't look to of been made/reground by decreasing the base circle diameter of a Std camshaft to increase the lift.

[lloydie]

Who made them , not a clue , what you will need to fit them and make use of them , not a clue .
Who ever buys them will be upset if they don't do there home work .



Lube, no lube, it's your choice .

[Stephan]

[Anyone any Ideas what they actually are?

They do have quite a fat profile, so they don't look to of been made/reground by decreasing the base circle diameter of a Std camshaft to increase the lift.

I suggested on FB site that Webcams have similar lift. They are reground, you can see smaller base circle on picture in comparison with oem. But maybe there is some material welded as well.

If you can find somebody who is able to set timing, I can manage cams with 256 deg and 10,2 valve lift. Price for regrind is about 115 pounds (including new nitrid coating). For IN cams it could work. But better to wait how it will work on my bike.

[tony.mon]

[Anyone any Ideas what they actually are?

They do have quite a fat profile, so they don't look to of been made/reground by decreasing the base circle diameter of a Std camshaft to increase the lift.

I suggested on FB site that Webcams have similar lift. They are reground, you can see smaller base circle on picture in comparison with oem. But maybe there is some material welded as well.

If you can find somebody who is able to set timing, I can manage cams with 256 deg and 10,2 valve lift. Price for regrind is about 115 pounds (including new nitrid coating). For IN cams it could work. But better to wait how it will work on my bike.

Is that a pair?

I can certainly manage cam timing.....

[Stephan]

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.

[Varastorm]

I suggested on FB site that Webcams have similar lift. They are reground, you can see smaller base circle on picture in comparison with oem. But maybe there is some material welded as well.

If you can find somebody who is able to set timing, I can manage cams with 256 deg and 10,2 valve lift. Price for regrind is about 115 pounds (including new nitrid coating). For IN cams it could work. But better to wait how it will work on my bike.

Have you any more information Stephan? Very interested in those cams