[TLRMan]

Originally Posted by BCT748

TLRMan- I know what I am talking about and I am sure that since you have built motors before you have seen what can happen when you run a low octane fuel in a high compression motor. I've seen snapped connecting rods and shattered pistons because people throwing lower octane fuels in high compression motors. I've built motors that have called for premium when they were stock with just a 10:1 ratio and needed 101 when I was done with them. My bike has an 11.5:1 ratio and it calls for premium. My truck only has 9.4:1 so it gets 87. Everything I have either owned that was stock or I built up with a 10:1 or higher gets premium, and lower than that and it gets low octane.



That's true for older motors. Newer ones will retard the timing if it starts to knock.

He he he...I was setting national records before you were born...I even built one of the worlds smallest reciprocating engines for MIT.
How many cylinder heads did you machine from solid billet, or fabricate pistons?
I've forgotten more than you'll ever know young whippersnapper.
BTW My TLR swings almost 13:1 for a comp ratio and I can safely run 89 octane in it...Hmmm ever scan a cylinder head with a laser, make changes and remachine them? You better go back to school, with me teaching the class!

Oh....Don't take anything seriously, I just love bashing Ducati owning know it alls.

[Kurlon]

Crap, I wanna start a conv about that world's smallest reciprocating engine, but I'm a Ducati owner, which likely means I'm a know it all and it'll only end in bashing. Crap.

[bergs]

FWIW;

2003 Yamaha FZ1- 12.5:1 compression-- 87 safe



Just my .02

[TLRMan]

Originally Posted by Kurlon

Crap, I wanna start a conv about that world's smallest reciprocating engine, but I'm a Ducati owner, which likely means I'm a know it all and it'll only end in bashing. Crap.

But you don't have the attitude of trying to shove crap down people throats...
You will survive in my realm.

BTW. The piston was .094" in diameter.

[beet]

I got your back Mark, fuck these diaper boys

[Kurlon]

Originally Posted by TLRMan

BTW. The piston was .094" in diameter.

A tenth of an inch... did you go Sterling, or was it an internal combustion unit, which means you made some stunningly small rings?

[bergs]

Originally Posted by Kurlon

A tenth of an inch... did you go Sterling, or was it an internal combustion unit, which means you made some stunningly small rings?

I'm guessing no rings....kinda like the nitro RC's...tapered cylinder.

Now if we're talkin' a 4-stroke, I'd need to see that thing in person to believe it...

[newgixxerchic]

yeah that would be no rings....

[ceo012384]

Thanks for the advice all. Just seemed a little nasty to me for such a new and well-maintained bike, that's all. I went and bought some seafoam, but I didn't put it in there yet because I was wondering if the bike will be down on power or running roughly with it in there????

If so, I'll wait till after the track days next week to do it...

[gregp]

Originally Posted by TLRMan

I even built one of the worlds smallest reciprocating engines for MIT.

Sir, would you have a picture of this engine? I'd *love* to see it!
Thanks!

[TLRMan]

Originally Posted by gregp

Sir, would you have a picture of this engine? I'd *love* to see it!
Thanks!

Sorry, no pics, and all the parts had to be accounted for...I did this job back in 1993.

[BostonSVkid]

Excuses excuses mark!haha

I would trust mark long before I trusted a 23 year old kid.

Originally Posted by TLRMan

Sorry, no pics, and all the parts had to be accounted for...I did this job back in 1993.

[ceo012384]

Still never got an answer even though it's after the TD's so it doesn't matter as much anymore: Will the seafoam cause rough running and/or decreased performance for a tank or two? If so, should it not be run within a tank or two of a track day?