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Parts Wanted Don pickert fuel injection

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Jeff Lutz said:
John, Don calling it “injection” was just a trick name for sure. Its true all it does is control fuel flow but it’s not a needle. It’s 2 slots like a gas heater adjuster from the old days. Don feels it is more responsive than a needle . The one in the picture was the second version he made. The last models were much different than that. Jeff Lutz
Click to expand...
Hey Jeff,
Any idea the reason behind the posted example having different sized outlets on the nipples?
 
Brandon Atwell said:
Hey Jeff,
Any idea the reason behind the posted example having different sized outlets on the nipples?
Click to expand...
Not to answer for Jeff, but typically the larger opening is for the line from the tank, and the smaller one out to the carb.. I think the reason behind this is to keep the velocity of the fuel up with a smaller line as the valve creates a pressure drop across the inlet to outlet..
Some of the valves have two square shaped ports cut into the barrel, others have a V notch on the outlet side that grows larger as the valve opens... I find those work better on smaller motors.... 21's and 45's...
 
It depends on how you set up the linkage,,, if you keep the throw centered at your perfect needle setting and only move the valve a tiny bit that works for some...

I prefer to center the valve and use a large amount of throw on my third channel knob..
Throw the boat in sloppy rich and start clicking it lean till it jumps on the pipe...
 
Wasted wages said:
It depends on how you set up the linkage,,, if you keep the throw centered at your perfect needle setting and only move the valve a tiny bit that works for some...

I prefer to center the valve and use a large amount of throw on my third channel knob..
Throw the boat in sloppy rich and start clicking it lean till it jumps on the pipe...
Click to expand...
And when you get a good running mixture....log the Atmos in notes, or screenshot it, label and file, take a flow reading (Kevin or Boris meter), attach flow reading to your Atmos file.
No substitute for a good data base.

Screenshot_20230512-164744.png
 
Wasted wages said:
Timbo, is that an app or from some data recording device ? That's pretty cool..
Click to expand...
I use Android OS, so we got from Google Play Store...was $3-$4.
The developer has other cool tuning apps, too. I'm sure Apple carries it in iPhone app store.

The app pings from GPS waypoints, so your location settings in phone should be set to most sensitive.

As an example, our club's pond is ~1 mi- 2 mi from nearest waypoint, terrain is rather flat, so readings seem to be still more accurate than a mechanical density gauge.

If money isn't an object, Kestrel makes some very nice hand held weather stations that are optimized for racing, specifically.

A lot of NHRA and APBA racers use them. Also, they integrate with a laptop so you have quick access to your files at the pond.

https://kestrelinstruments.com/kestrel-5100-racing-weather-meter
Screenshot_20230512-173202~2.png
 
Timbo Whalen said:
I use Android OS, so we got from Google Play Store...was $3-$4.
The developer has other cool tuning apps, too. I'm sure Apple carries it in iPhone app store.

The app pings from GPS waypoints, so your location settings in phone should be set to most sensitive.

As an example, our club's pond is ~1 mi- 2 mi from nearest waypoint, terrain is rather flat, so readings seem to be still more accurate than a mechanical density gauge.

If money isn't an object, Kestrel makes some very nice hand held weather stations that are optimized for racing, specifically.

A lot of NHRA and APBA racers use them. Also, they integrate with a laptop so you have quick access to your files at the pond.

https://kestrelinstruments.com/kestrel-5100-racing-weather-meter
View attachment 316137
Click to expand...

I'm on android as well and looked a few of them up,,, yeah, it's like 3 bucks.. which developer are you using?

That Kestrel looks nice, I'll have to look into that as well..
 

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