titanium colars

brxpb · Oct 22, 2013

Is it worth the expense of fitting titanium top collars while I've got the cylinder head off, does anyone know the weight saving over std, or are they only worth bothering with if they're put to work with Maney racing springs or JS beehive springs or similar.

Thanks Paul.

pete.v · Oct 22, 2013

It's not a weight saving thing but an operational thing. Reducing mass in the valve train in anyway possible is a good thing and any saving, in this mechanical regard, is transmitted right to the rear wheel.

I have the JS beehive springs and along with the radius cam and lifters, it just runs good. Nice stuff.

I need to loose 30lb. This too will transmit to the rear wheel but is a different modus of operandi. This would be a awesome way to gain and edge on the competition.

brxpb · Oct 22, 2013

Perhaps weight saving was't the best term, but I mean in terms of lightning the valve train, used on their own with all std valves and springs do they merit the expense or are you best not bothering unless you go the whole way and install trick valves/springs etc.

Torontonian · Oct 22, 2013

How do you drive ? Normal vintage bike stuff don't bother ,racing etc. think about it.

RennieK · Oct 22, 2013

I'd say wait till you need valves or springs then buy a complete kit with springs, valves and retainers. Shimming the valve springs so they operate in peak performance range and lightening rocker arms are things that should be done before adding the expensive tid bits. Adding titanium retainers is the icing on the cake in valve train tuning and about the last thing you can do. Without the cake though, they are just icing.

Matt Spencer · Oct 23, 2013

Does improve the percentages though . Less mass means less hammering which means less wear .
Though there are some mass harmonic trips you can deharmonise unawares , perhaps .

The old S&W spring set came with high quality fittings , to replace stock . Setting operateingh clearances is std. ' blueprinting ' work , for increaseing engine efficency , durability & reliability .
Particularly if youre inclind to be dismissive of inferior forign makes when out for a spin .

john robert bould · Oct 23, 2013

When over -comming 180LB valve springs will a few grams make much differance...it's valve bounce at 7500 or 7520 ,i personaly change gear at much,much lower rev's.
The Commando cam follower is a big lump and a conversion to Triumph followers is a better weight saving, plus a carefull rocker trimming. Bigger savings can be made but how are you going to prove it , ...by flexing the crank to valve bounce :roll:

Al-otment · Oct 23, 2013

pete.v said:
I need to loose 30lb. This too will transmit to the rear wheel but is a different modus of operandi. This would be a awesome way to gain and edge on the competition.

Not trying to be funny, but are you referring to yourself or the bike regarding the weight loss? Taking into consideration the combined mass of bike and rider, a 30lb weight reduction will help acceleration. Can't help noticing that quite a few riders can improve their bikes performance simply by cutting down on the junk food. They may even live longer and so get a few more thousand miles under their belt before going underground!

pete.v · Oct 23, 2013

Al-otment said:
pete.v said:

I need to loose 30lb. This too will transmit to the rear wheel but is a different modus of operandi. This would be a awesome way to gain and edge on the competition.

Click to expand...

Not trying to be funny, but are you referring to yourself or the bike regarding the weight loss? Taking into consideration the combined mass of bike and rider, a 30lb weight reduction will help acceleration. Can't help noticing that quite a few riders can improve their bikes performance simply by cutting down on the junk food. They may even live longer and so get a few more thousand miles under their belt before going underground!

That's exactly what I am refering to.
I used to wind surf. Came back after a break in life and found it rather difficult getting up on plane.
Same Issue.

B+Bogus · Oct 24, 2013

pete.v said:
Al-otment said:

pete.v said:

I need to loose 30lb. This too will transmit to the rear wheel but is a different modus of operandi. This would be a awesome way to gain and edge on the competition.

Click to expand...

Not trying to be funny, but are you referring to yourself or the bike regarding the weight loss? Taking into consideration the combined mass of bike and rider, a 30lb weight reduction will help acceleration. Can't help noticing that quite a few riders can improve their bikes performance simply by cutting down on the junk food. They may even live longer and so get a few more thousand miles under their belt before going underground!

Click to expand...

That's exactly what I am refering to.
I used to wind surf. Came back after a break in life and found it rather difficult getting up on plane.
Same Issue.

I was looking at my 20+ year old race leathers recently thinking pretty much the same thing - if the expander panels worked sideways as well as vertically I may try to get back into them!
Off for a cycle ride now - it all helps!

brxpb · Oct 24, 2013

Pete, do you use the JS valves with the beehive springs or did you modify your existing valves? JS advert says they're a drop in product, obviously you'd have to grind the valves in but did you have to do any shimming etc?

pete.v · Oct 24, 2013

brxpb said:
Pete, do you use the JS valves with the beehive springs or did you modify your existing valves? JS advert says they're a drop in product, obviously you'd have to grind the valves in but did you have to do any shimming etc?

Yes, I used the JS valves. I think I added .010" on a couple of the valves.

titanium colars

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