Nikisal vs steel cylinder bore

[brokenmike]

Just wondering what are the advantage's to each? IMO I think steel bore's are better. I'am just wondering why poeople choose nikisal cylinder bore's? Thanks...

[Honda 250r 001]

well, with a aluminum sleeve with nik coating, you can run the piston cylinder wall closer i think and you dont have to wait as long for it to warm up.

[86 Quad R]

its all about wear............the coated cylinders resist wear much better than uncoated.

[matt250r21]

Nikisal bores have less cylinder wear then steel sleeves because the coating is very hard. They also have better heat transfer because the cylinder is all aluminum.

[brokenmike]

I would rather pay the price of a bore rather than the price to have the cylinder sent out to get re-plated. I had rebuilt a trx 450r a year ago and the cylinder needed to be re-plated. It was actually cheaper to just buy a NEW Honda cylinder than it was to re-plate it. Not to cheap for a top end

[Rich250RRacer]

My had my steel sleeved cylinder Nikasil coated to return it to a bore size that I wanted. It runs very well and even after a seizure due to improper jetting, I was able to reuse the cylinder. That Nikasil is some hard stuff.

[86 Quad R]

its good stuff for sure. everyone is going to it these days. i'm actually thinking bout plating the iron sleeve of my next build.:cool:

[cartman0102]

I have a nickasil in my cylinder.
It is a ct350 pv in steel of course.

Many tell me that this is not good.

You know what?

[Ruf Racing]

Originally posted by 86 Quad R
its good stuff for sure. everyone is going to it these days. i'm actually thinking bout plating the iron sleeve of my next build.:cool:

It is the way of the furture. Nikasil is badass! :macho :macho

[Honda 250r 001]

Originally posted by Ruf Racing
It is the way of the furture. Nikasil is badass! :macho :macho

its cool yes, but not every shop does nik coating. So if your in a time crunch, you can forget about making your deadline because you have to send your cylinder off somewhere to get coated, also it costs a bunch... if it was cheaper and more shops started nik coating, i would go for it, but right now, im sticking with steel.

[derby]

Originally posted by Honda 250r 001
its cool yes, but not every shop does nik coating. So if your in a time crunch, you can forget about making your deadline because you have to send your cylinder off somewhere to get coated, also it costs a bunch... if it was cheaper and more shops started nik coating, i would go for it, but right now, im sticking with steel.

Yea, but what do you do when that steel is out of bores? Buy a new cylinder or pay $500 for a resleeve?

[Honda 250r 001]

when you run out of bores, then you coat it. :P

[jcs003]

there is many benefits:

no real break in procedure.

more seize resistant.

better wear characteristics.

longer piston life.

[derby]

Originally posted by jcs003
there is many benefits:

no real break in procedure.

more seize resistant.

better wear characteristics.

longer piston life.


What do you mean by no real break in procedure?

[jcs003]

Originally posted by derby
What do you mean by no real break in procedure?

you dont need to go through as many heat cycles. warm it up and cool it off a few times. take it easy on the first ride not to push it too hard. nik bores are just more durable.

IMO i believe the jap bike builders started doing it to make a bike more reliable to relieve some of the economic strain from dealers warranty issues. if a guy seizes a top end in a week and there is a 90-day no fault warranty the dealer gets stuck with the cost.

but bmw used this kind of coating for a long time to make a more reliable cars.