Nitrous?

[ChrisMX105]

Re: Nitrous?

Dave and Mel built the engine.

[sledge39]

Re: Nitrous?

... RB-51 nitrous rack under construction, AeroSport, March 1975 ...

[BellCobraIV]

Re: Nitrous?

Dave and Mel built the engine.

The majority of the 3 Km record engine was built by Dave Cornell, Mel Gregoire and myself. To be correct.
John

[Big_Jim]

Re: Nitrous?

https://www.youtube.com/watch?v=D1YTkLc5yDo

15 minutes in.

Awesome video. Oh, wait a minute.......never mind.

[Fence Sence]

Re: Nitrous?

^^^Ha!

Truly amazing that the Bear did all that on one engine. You guys (Lyle and crew) had a hell of thing going back then.

[1:1 Scale]

Re: Nitrous?

Awesome video. Oh, wait a minute.......never mind.

Thanks for recording that, and posting for all of us relative noobs to experience! Would you mind re-uploading in 1080p?

[cragdweller]

Re: Nitrous?

https://www.youtube.com/watch?v=D1YTkLc5yDo

15 minutes in.

That was Badass!!!!

[BellCobraIV]

Re: Nitrous?

^^^Ha!

Truly amazing that the Bear did all that on one engine. You guys (Lyle and crew) had a hell of thing going back then.

Yes, BTW we also won Hamilton, and Reno 1988 and all the flying back and forth associated with those events with just 2 or 3 cylinders changed, on that same engine without tearing into the engine. Great engine.

[Fence Sence]

Re: Nitrous?

Yes, BTW we also won Hamilton, and Reno 1988 and all the flying back and forth associated with those events with just 2 or 3 cylinders changed, on that same engine without tearing into the engine. Great engine.

That's almost unimaginable. How many hours do you think that particular motor ran for before being torn down? What happened to it after?

[IcePaq]

Re: Nitrous?

Nitrous may be a good way to "de-rich" an engine if you get just the right amount while the ADI is running.

It also cools the intake charge.

I don't think the racers are using the cooling effect of nitrous oxide much anymore since I've heard that some racers are reducing the alcohol to water ratio because they are actually running into intake air temps that are too low.

I don't know if that's true but that is a significant accomplishment considering they replaced an aftercooler with a pipe.

To me, nitrous oxide is a way to get more oxygen into the combustion chambers in spite of a breathing limitation in the basic design of an engine that may have you simply "making heat" as boost levels increase in the quest for more horsepower.

[BellCobraIV]

Re: Nitrous?

Nitrous may be a good way to "de-rich" an engine if you get just the right amount while the ADI is running.

It also cools the intake charge.

I don't think the racers are using the cooling effect of nitrous oxide much anymore since I've heard that some racers are reducing the alcohol to water ratio because they are actually running into intake air temps that are too low.

I don't know if that's true but that is a significant accomplishment considering they replaced an aftercooler with a pipe.

To me, nitrous oxide is a way to get more oxygen into the combustion chambers in spite of a breathing limitation in the basic design of an engine that may have you simply "making heat" as boost levels increase in the quest for more horsepower.

Quite simply, Greg Shaw and Dave Cornell put more time, money, and research into Nitrous Oxide than anyone else I've ever known. Greg was ripped off by two of the automotive Nitrous Oxide system manufacturers that never paid what they agreed to pay for his information. They also had some benefits from a former Nazi engineer who was Kurt Tank's number two engineer. This man was brought to Lockheed after the war to work. Information that was never shared to anyone else.
John

[toldjaso]

Re: Nitrous?

That's almost unimaginable. How many hours do you think that particular motor ran for before being torn down? What happened to it after?

It was cooked when someone flew around with the gear down during a checkout ride

[BellCobraIV]

Re: Nitrous?

It was cooked when someone flew around with the gear down during a checkout ride

Correct,

During a check out at Van Nuys airport The new pilot took off before getting a complete briefing on why the gear needed to come up. The pocket doors created a high pressure area right where the oil cooler duct came out between them. So high in fact that no air would come out of the cooler duct. So the newbie pilot took off, did a circuit of the field, called for a priority approach abeam the tower, taxied in off the runway stopped the airplane on our ramp and proceeded to try and cool it down. Never ever in my life had I smelled an engine as hot as that. It was toast, absolute junk....A crying shame. A classic example of new pilot / new crew chief and the airplane was supposed to be in Aspen the next day to keep the sponsor happy. Lyle was out of town, The new crew chief / new pilot both said.....Well John When you are talking to your dad tonight I guess you need to tell him what happened as Lyle was away on a TWA trip. Yeah NOT a fun phone call.

John

[Big_Jim]

Re: Nitrous?

Correct,

During a check out at Van Nuys airport The new pilot took off before getting a complete briefing on why the gear needed to come up. The pocket doors created a high pressure area right where the oil cooler duct came out between them. So high in fact that no air would come out of the cooler duct. So the newbie pilot took off, did a circuit of the field, called for a priority approach abeam the tower, taxied in off the runway stopped the airplane on our ramp and proceeded to try and cool it down. Never ever in my life had I smelled an engine as hot as that. It was toast, absolute junk....A crying shame. A classic example of new pilot / new crew chief and the airplane was supposed to be in Aspen the next day to keep the sponsor happy. Lyle was out of town, The new crew chief / new pilot both said.....Well John When you are talking to your dad tonight I guess you need to tell him what happened as Lyle was away on a TWA trip. Yeah NOT a fun phone call.

John

At least they didn't 'pick a veteran pilot to follow around the course'.

Oh, wait...what?

[tjyak50]

Re: Nitrous?

This thread has literally made my day. Thank you.

I was wondering all morning if, when and how Lyle and the Team "sprayed" the Bear.

Thanks all.