60 may suck but knowing Greg doesn't!

Sieg what's the bushing looking thing next to the sway bar mount?

:EmoteClueless:
Dan

Agreed, the entertainment value is off the charts and to date he hasn't got me throw in jail. :D

The bushing 'thingy' is classified as a sleeve and clamp in the factory assembly manual. :thumbsup:

Few basics lately........the #3 plug cap started arcing to the header tube and I decided it was time to install an AEM A/F gauge in the system to see how close my seat of the pants carb tuning had been.

http://photos.smugmug.com/photos/i-C...-C9CbTgh-L.jpg

Accel ceramic caps FTW!
http://photos.smugmug.com/photos/i-f...-fGCPZGN-L.jpg

Preparing for surgery.........
http://photos.smugmug.com/photos/i-D...D2psZD4-X2.jpg

http://photos.smugmug.com/photos/i-v...-vzxWzNN-L.jpg

http://photos.smugmug.com/photos/i-C...-C9FNH98-L.jpg

http://photos.smugmug.com/photos/i-p...-pFV58wT-L.jpg

http://photos.smugmug.com/photos/i-Q...-QvbDNrz-L.jpg

http://photos.smugmug.com/photos/i-x...xX55nBD-X2.jpg

The sensor was the easy part. Locating the gauge involve a little more thought and fabrication......

http://photos.smugmug.com/photos/i-D...DLv4Cwb-X2.jpg

http://photos.smugmug.com/photos/i-L...L2CQBDZ-X2.jpg

Mock up
http://photos.smugmug.com/photos/i-N...NWdn8VR-X2.jpg

Rustoleum Hammered Metal Black applied.......fair warning it's far from black, more of a dark charcoal. There's a repaint in my future.
http://photos.smugmug.com/photos/i-c...czRXsgR-X2.jpg

All systems go!
http://photos.smugmug.com/photos/i-g...gBFsSX2-X2.jpg

Nicely played.


I've never heard of the ceramic boots before. That's an awesome solution to a problem a lot of guys have!

So here's the thing I've discovered about AF for what it's worth. "It all depends". LOL

It all depends on if you're just trying to make some artificial number - versus giving the motor what it wants. Idle still should be tuned for highest vacuum reading possible and highest RPM's. When the motor is getting the fuel it needs it will respond. End of story. Whatever that "number is A/F wise" is what it is. I've seen lots of people make the mistake (more with EFI) trying to "make" the car run on some A/F number someone told them. With all these motors being different combos - there isn't a magic number... because there's so many other factors that influence the combustion process.

Where these A/F meters are helpful (IMHO) is jetting on the big end of things. We used to use timing slips and try to tune for MPH... which is what told us if we were going the right way (OR NOT!). Now a guy could go out and check for lean or fat condition by making a WOT pull on the freeway and a quick glance at the meter will give him the info. Sweet.

The harder part I think would be trying to tune for freeway cruising... with a carb you just don't have the ability to lean it out in an area of throttle / load like you can with EFI.

Thank you.

Those ceramic caps are priceless! Reading the reviews multiple people were complaining about the cost.......$22 shipped via Amazon prime. WTF! Consider the alternative cures people. :lol:

Totally agree on "it all depends." I've always tuned by feel and plug/exhaust color because that's all I've had and always try to error on the rich side.....as a kid my 2 stroke motorcycles taught me the value in erroring rich. :D

I was very happy to see the idle and cruise was in the ballpark.

It also showed my front float level is low as it goes lean off the chart under braking. Quick bump up on the level and possibly install the jet extensions will cure that.

Regarding tuning for cruise, that will require some thought, though with the Holley Ultra HP it is very tunable. idle & high speed air correction jets, pump cam profiles, pump shooters, power valves, and tunable metering blocks that allow power valve/idle/emulsion fine tuning.

What I haven't found is a good chart that shows how all the circuits overlap through the throttle range.

This is the chart I always referenced to dial in my bikes and a similar chart for Holley carbs would help my visual brain immensely.
http://justkdx.dirtrider.net/images/graph.jpg

Here's a pump cam profile chart that looks somewhat like EFI tuning......LOL
http://forums.vintage-mustang.com/fi...mpCams4777.jpg

Nice looking gauge Sieg. That's an upgrade I'm looking forward to getting to. Definitely a great tuning tool. What kind of readings are you getting in the upper rpm range

Thanks. I'm looking forward to playing with it. Only had a chance for a quick loop (6-7 miles) last night and not enough open road to really exploit 3rd or 4th gear. In 3rd around 4-5K the richest I saw was 10.8-11.4.......I think. A GoPro would be real handy to record data.

A wise old tuner once told me "If you ain't melting pistons or fouling the plugs....You're GOOD to go"

Awesome gauge mount and fab work Siegmunster :RunninDog:

nice work seegie