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Which pipe is faster overall??? Novarossi 2652 .12 pipe or novarossi 2660.12????

Since Geberit is located in Europe shipping from me would be cheaper then from the States. Plus it will take twice as long.

I know, people sometimes thinks that the price they see includes shipping

Oh well if that would be the case it wouldn't be a deal breaker for me.

The 2660 has more mid and top end. But you can't go wrong with either one!

Can anyone tell me if the diference between the new Flash .12 PT and PTS vesions is "only" the front bearing.

Thks in advance

To add to the above question what is the advantage of having both bearings Ceramic as opposed to the Rear bearing alone ??

Thanks

Ceramics are supposed to be stronger, lighter and faster than steel bearings.
But I've heard of people changing from ceramic to steel bearings.
Not sure why, but they liked the steel bearings better, even though in my experience and the engines Ive seen, the ceramics will outlive steel bearings anyday.
I guess it depends on what quality steel bearings the engine maker uses.

The Novarossi steel bearings have a more durabillity than their ceramic bearings and one huge difference is the price. Yes, normally ceramics should be better, Ceramics do better with less lubication compared to steel and our engines on high revs have a critical lubrictaion where the ceramics will still run smooth and normally do not get hurt running a peak rpm on a short time (2nd part of the straight).

Capricorn 2662 is the best

can someone tell me what is the mark appeared on the surface under the exhaust side of the sleeve. I saw one dot on some, 3 dots on others.

? i know some of the rear ceramic bearings comes with less balls i forget the differance maybe 2 balls less or something, so whats better to use the one with more balls or less?

The ceramic bearings are lighter. Yes they have less balls in them. Yes the price is a huge difference oppose to steel. One reason people change to steel from ceramic is the care factor. Ceramic bearings do not like sitting in nitro so you have to keep the engine clean inside so they need more care.

From a logical point of view... Less balls means less resistance... But more balls means that the load that each ball carry is less...

I don't know if this applies to ball bearings, someone correct me if I'm wrong...