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ZillaFreak

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Posts posted by ZillaFreak

  1. 10mill DM or supercub on pumpgas?

    in Banshee Repairs and Mods

    Posted

    1 minute ago, specialblend07 said:

    You called me a dipshit, you started the name calling, slob.

    Where did I ever say I didn't get it? I just don't care. No one said for him to ignore it, what are you even talking about?

    I'm done with this, arguing with you has proven to go no where on this site.

    No wonder you can't stay in a relationship.

    And no wonder you hate your relationship.

    So just because you don't care, why shouldn't the OP care? Why shouldn't the OP be trying to get the most out his engine enough though he is running pump gas? 

     

  2. 10mill DM or supercub on pumpgas?

    in Banshee Repairs and Mods

    Posted

    23 minutes ago, specialblend07 said:

    You're such a fucking slob. 

    He never said it wasn't important. He just said it didn't matter to him, slob.

    You can call me what you want, but the fact still stands, dyno are very important no matter the fuel. And everyone should be worried about what their engine can do on a dyno and try to understand what the curve means. Just because ignorant people like yourself don't get it, doesn't mean others should ignore dynos. 

  3. 10mill DM or supercub on pumpgas?

    in Banshee Repairs and Mods

    Posted

    15 minutes ago, RagunCajun said:

    I understand where it makes power and how much is important but to someone like me who doesn't understand how it translates to seat of the pants, it is not a big deal to me. Which I explained in the quoted posted you quoted me on.

    Just because you lack the understanding of the material doesn't mean it is unimportant.

  5. 10mill DM or supercub on pumpgas?

    in Banshee Repairs and Mods

    Posted

    1 hour ago, RagunCajun said:

     

    That's my engine on his chassis dyno. It's a very fun engine that makes just dumb power for the playing around I do. Cam was told I did not and still don't care about dyno numbers. I don't understand how dyno numbers feel when riding.

    People see it did 109/57 peak and flip out but they don't realize how nasty the tq is under the curve. The mid range is just insane. I went on a safe pump gas because I ride very little and didn't want to mess with race fuel anymore. I absolutely love my engine. Give redline a call and discuss your wants and needs. That helped me determine what I wanted.

    Since you are doing pavement stuff, I'd assume mph matters. It doesn't to me but I have to open it up every now and then just for the hell of it. My bike with 14/41 did 92mph a few weekends ago and I didn't hold it wot long at all. I short shifted 5th bad and pulled 6th for about 4 seconds. It's turning 22" cst pulse tires. I have a 15t and 16t front sprocket but my bike is geared for 1st-4th fun so it's fine.

     

     

    Dyno charts are very important. It isn't the two numbers at the top that really matter, it is all the numbers charted out that matter.

  6. What to expect at Hatfield-Mccoy? Aware me.

    in Riding and Events Forum

    Posted

    worse part was the narrow trails with 2 way traffic. We actually had a head on wreck there in the group. The quad hit a rzr around a blind turn. Both parties were at fault, the rzr was on the inside of a turn when he should have been on the outside, the guy on the can-am in our group was going a little fast (a lot fast) and lucky he didn't die, just got a messed up some.

    Like david said, carry fuel. Also carry oil as there were some gas stations you can ride too. We didn't ride at Rockhouse but check into them having gas stations away from camp. Gas is very important. Or just have someone with a sxs carry the fuel for you.

  12. bigger piston = more hp?

    in General Banshee Discussion

    Posted

    12 hours ago, registered user said:

    the ports get wider (more area) with bigger bore but not at the same proportion as longer stroke

    years ago some of the 250 were sqaure. why theyre undersqaure now seems kind of a mystery. ive talked to knowledgable people about it but theres mostly just speculation for answers. maybe it gave a favorable powerspread. maybe chassis handling was better. a email to one of the bike manufacturers might solve the mystery if u could get in touch with the right person

    i think the banshee stemed from a street bike engine so you would have to ask why did that streetbike need oversqaure. my guess is a more compact package. given the cylinders are sqaushed together also, this makes the most sense to me. 

    Oversquare means bigger bore than stroke. So saying the banshee is oversquare because the cylinders are squashed together is complete false. If yamaha wanted the cylinders close together, it would be undersquare aka longer stroke than bore.

     

    The fact are, a shorter stroke allows for higher revs, hence why most high revving engines are oversquare. A longer stroke allows for more torque, hence why most workhouse engines are undersquare. 

     

     

  14. bigger piston = more hp?

    in General Banshee Discussion

    Posted

    2 hours ago, registered user said:

    4strokes r diferent. larger bore means larger valves. 2stroke has valves (ports) in the wall. sqaure is the best compromise for 2stroke. most banshee r over sqaure simply because its cheaper and less machine work to go up in piston size that to use huge stroke cranks

    A larger bore can mean wider ports in the cylinder wall. 

    How is square the best compromise? TRX250R, LT250R, CR250R and most bikes are all undersquare. Quadzilla is square. Banshee and CR500 are oversquare.  So which engine is the best, the quadzilla engine because it is square?

    As for the banshee being oversquare because it is cheaper and less machine work to go up in pistons than stroke.... how does this equate for yamaha when designing? 

  15. bigger piston = more hp?

    in General Banshee Discussion

    Posted

    10 hours ago, registered user said:

    the piston doesnt rotate. either u misunderstood what that builder said or  he doesnt know shit and needs to get out of the game for saying such a stupid thing

    bigbore piston may give a small amount more power, probly because the piston now has more surface area for the combustion to act upon. but they likely weight more which puts addes strain on the rod and bearing and friction losses surely are higher

    Longer stroke adds more stress on everything at same RPM.

    Friction isn't higher for bigger bore than longer stroke. 

     

    If anyone has ever looked at some of the high power vehicles for racing, all have bigger bore than stroke. 

     

    25 minutes ago, ClaudeMachining said:

    The interesting discussion to have is the ratio between bore and stroke. Short stroke, square stroke or long strokes vs application.

    Envoyé de mon SM-G965W en utilisant Tapatalk
     

    If really comes down to, space and application. One might do shorter stroke to save on height of engine, or longer stroke to save on width of engine.

    For application, you will see F1 engines that rev very high and make power are oversquare. For trucks, you normally see undersquare.

  16. bigger piston = more hp?

    in General Banshee Discussion

    Posted

    13 hours ago, jack vo said:

    ok long story short i was talking to the engine builder i was told that a bigger piston on a banshee will not give me more hp but a stroked banshee will,

    his explanation was that a bigger piston will slow the engine down due to rotational mass 

    so is this true

    This builder is a joke.

    Longer stroke usually decreases revs. There is a max speed pistons can moves, longer strokes means pistons has to move faster for same rpm.

    Rotational mass isn't a bad thing and doesn't slow an engine down, just slow the acceleration down.

    Reciprocating mass is bad. Piston weight is reciprocating mass.

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