|
|
Post by Lucass2T on Nov 26, 2015 15:17:53 GMT -5
Nicasyl is more durable...why would every 2T engine from the 90's and on be alu nicasyl? Eventhough for a nucasyl cylinder manufacturing is more labor intesive and thus more expensive. It's made out of 2 materials, Alu and Nicasyl while a cast iron cylinder is just cast into a 'template' (?) and then machined. When you ask me cast iron is just a cheap and outdated alternative to alu nicasyl. From all the performance 2T scooter/motorcycle/ATV/PWC/snowmobile cylinders...can you name one thats cast iron and has 1 ring? I can name one, the top performances due plus for scooters...thats the one and only i know. Or can you name any modern performance engine that has a cast iron liner? 190mech can you enlighten me? Im really curious why all the Dio guys use the Corsa  |
|
|
|
Post by spaz12 on Nov 26, 2015 15:22:52 GMT -5
But what if a cast iron cylinder eats a circlip? You can hone that out a lot of times, can't you? I know you can't on nikasil.
Still doesn't stop me from buying only aluminum cylinders though.
|
|
|
|
Post by Lucass2T on Nov 26, 2015 15:27:00 GMT -5
But what if a cast iron cylinder eats a circlip? You can hone that out a lot of times, can't you? I know you can't on nikasil. Still doesn't stop me from buying only aluminum cylinders though. No thats not a valid argument. You don't buy a cylinder with the expectation you're gonna seize sooner or later it are you? An accidental charactaristic of cast iron is that you can hone/overbore it yes...but that shouldn't be the reason you choose a particular cylinder i would say. At least not when you're aiming for performance goals. Maybe when you're doing a 20000 mile roadtrip on 1 cylinder and somewhere on the way you need to be able to hone it because it got worn out?  |
|
|
|
Post by oldgeek on Nov 26, 2015 22:04:52 GMT -5
Question for a Honda dude. Why do all you guys all use the cast iron, double ring Corsa and not the Alu nicasyl Malossi MHR replica with triple exhaustport? Cast iron is inferior to nicasyl. Myself i wouldn't even bother building a performance engine with a cast iron cylinder.  The aluminium MHR in your picture uses a 2 ring piston, I thought the aluminium cylinders typically use a 1 ring piston? |
|
|
|
Post by spaz12 on Nov 26, 2015 23:47:02 GMT -5
The mhr rep uses 2
|
|
|
|
Post by Lucass2T on Nov 27, 2015 1:58:28 GMT -5
Question for a Honda dude. Why do all you guys all use the cast iron, double ring Corsa and not the Alu nicasyl Malossi MHR replica with triple exhaustport? Cast iron is inferior to nicasyl. Myself i wouldn't even bother building a performance engine with a cast iron cylinder. The aluminium MHR in your picture uses a 2 ring piston, I thought the aluminium cylinders typically use a 1 ring piston? No thats a misconception. The cylinders' material doesn't determine how many rings or what kinda piston is or should be used. But 99% of the performance cylinders with 1 ring is alu yes. But there are even more 2 ring alu cylinders including all those stock engines which are alu and in all cases use 2 rings from the factory. Don't know about weedwackers though... |
|
|
|
Post by 190mech on Nov 27, 2015 17:48:34 GMT -5
Ryan,sorry for thread jacking!!My take on nikasil vs iron is;Nikasil is the best for just about any engine these days,its a cheaper way to manufacture as the casting is honed to size then run thru the nikasil process.The old school MX cylinders had a ribbed cast iron sleeve placed in a mold and the aluminum port/fins/waterjacket were cast around it,lot more work..Nikasil has an even expansion rate with the piston,has a harder bore than iron..My problem with nikasil is the plating extends into the ports for strength,if one is to port a nikasil cylinder that lapped area is removed,then there is a raw edge at the port face for the ring to do its very best to snag and peel off,same also on the head flange,any cutting there does the same thing.For a plug-n-play install its great,I cant build stuff that way though,Top tuners strip the nikasil,port it and send it to be replated after wards..$$$. I dont want to start a big discussion on Ryan's thread about about another subject and certainly dont intend to start a pissing contest..  |
|
|
|
Post by nelson on Nov 27, 2015 20:03:04 GMT -5
Great scoot man! I have been on the look out for a honda
|
|
|
|
Post by ryan_ott on Nov 28, 2015 21:15:53 GMT -5
The reason for me choosing the corsa is there are tons of people running them on Hondas and I didn't find many running anything else besides strokers. It's fairly low rpm and makes good power for what it is. And after my issue with Malossi I wasn't giving them more of my money. Eventually I'll probably run something else but for now I'm just using the stock crank.
|
|
|
|
Post by birdman on Nov 29, 2015 1:36:34 GMT -5
Lucass2T thats a good question because I am a scooter newbie compared to you and the infamous Corsa was recommended to me by a couple Honda gurus so I just went with that as my first choice. I ended up being really happy with it and as you can see for a cast iron kit it's no slouch. I have been interested in trying a MHR build on a AF16 but I been soo happy with the Corsa build, I wont dare bust it apart, maybe I will get another AF16 engine for an MHR build to try.
|
|
|
|
Post by ryan_ott on Dec 3, 2015 20:57:08 GMT -5
Looks like my drain serves its purpose:) Drain without pulling motor.  |
|
|
|
Post by ryan_ott on Dec 20, 2015 21:47:30 GMT -5
|
|
|
|
Post by oldgeek on Dec 20, 2015 22:00:52 GMT -5
Very,very nice! That scoot is so clean looking!
|
|
|
|
Post by niz76 on Dec 20, 2015 23:47:56 GMT -5
Too Sweet!  |
|
|
|
Post by triesandluth on Dec 21, 2015 0:07:58 GMT -5
I really dig your scoot!
|
|
