Warbird Information Exchange

That's a fast looking framework you've got there Gary. I say you fly it like that and call it an Ausliot.

hey there Gary i wanted to know if you were gona run any other instruments in `pit other than the Enigma or do you think it's a good solution for all your instrument needs..??

Excellent question. I've been going over that in my head for a while now. I already have an altimeter in one wing root and a g-meter in the other. But I can always remove those (for weight purposes) before tech inspection at the races. I've been going back and forth on whether or not I should run a regular ol' airspeed indicator, in case the Enigma were to have some sort of glitch...but the airplane doesn't care if it has an airspeed indication and will fly just fine without one, and I'm pretty confident that I should have no problems flying the airplane should an indication issue arises. I mean, airspeed is certainly a nice tool to have, but if you can't fly an airplane like this without that indication, then you probably shouldn't be in it to begin with. You know what I mean?

So, with that being said...I probably won't run a "standard" airspeed indicator, but it's still a bit too early to tell right now.

Gary

i'm thinking about a snoshoo as a weekend speedster and a future racer
i really like the enigma system but i kinda want a few real gauges( T's & P's, tach and alt ) in the `pit as well just to be sure.. UMA make lots of nice small units that look nice and don't weigh alot

i'd love to see your cockpit installation when you get it done!

i'm thinking about a snoshoo as a weekend speedster and a future racer
i really like the enigma system but i kinda want a few real gauges( T's & P's, tach and alt ) in the `pit as well just to be sure.. UMA make lots of nice small units that look nice and don't weigh alot

i'd love to see your cockpit installation when you get it done!

Don't worry about that. I'll be posting every stage of this project...unless, of course, WIXers get tired of my endless ramblings and updates.

Gary

i wana know how to squeeze a few more ponies outa the old O200 and just what can be done firewall forward in an F1 racer so i'm watching this topic closely

thanks for the show!

Hmmm, don't know if I'll be of any help to you there...my engine will be completely stock, with no real horsepower mods, other than just turning up the rpm a little bit.

Gary

IF1 0-200 engine should be, tight...............but loose.................make any sense?

not really!

not really!

It's all in setting up bearing tolerances, piston tolerences, rings etc. A loose motor, ie. one set up with more clearance between the parts will spin more RPM and have less friction than a "tight" motor to a point of course. Balancing of the rotating assembly is also extremely important. Rember that IF1 rules are very strict on what you can and can't do, so it's all in the details.

ahh..
cause your hunting a gain in rpm not HP so much you doing want a motor with very high tolerances..

can you recommend any reading or more detailed material on this kinda engine development..??

i was thinking on mattituck built motor for my little plane with their red gold package which is a balancing and flow matching program for their motors to start with and then clocking some time with the motor untouched before embarking on the path to racing...

thanks zak

You are hunting HP too. I doubt you will find much written material on the subject. Very few do it well, and they won't reveal their secrets.

I am not a mechanic, but have known know a lot of Racers over the years. Another issue with setting up O-200s in the race airplanes is crankshaft clearances and runout (I think that's the term). Because of running the motor at 4000++ rpm along with the very long prop extensions, crankshafts and such have to be truly perfectly aligned. Apparently using the tolerances from the rebuild manuals is not good enough for this application -- only perfect will do...

So some stuff loose and some stuff tight. A steep learning curve but you end up with a 280 mph O-200.

One of IF1's great motors was the one in #3 "Nemesis". Those guys would go so far as to bake parts in an oven to get clearances at operating temps where they wanted them, as well as spending endless hours with flow benches to get things just right. That motor sounded like it was on death's door when started up cold -- you wouldn't believe the rattling and clunking. But, when the temps and RPMs came up that motor cooked!!

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Neal Nurmi

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