RCC "Rocketman" Mini Tach

dz01

Member

Mar 31, 2005

285

10

19

Massachusetts

Aug 26, 2020

#1

• Aug 26, 2020

• #1

Just installed a mini tach in my 68. Looks great and was not too hard to install. My question is that upon startup, it takes a second to "register" and for the needle to move. Unlike some cars I've driven when the needle immediately moves to idle or high idle. Anyone else have a Rocketman mini tach that can confirm correct operation?
Thanks

 

65ShelbyClone

Founding Member

Sep 9, 2000

4,675

38

119

Antelope Valley, SoCal

Aug 28, 2020

#2

• Aug 28, 2020

• #2

Does it work correctly after it starts registering RPM?

All tachs I've ever used start registering RPM when the engine fires. Construction varies widely and I can only speculate that maybe the electronics in the Rocketman tach have a startup delay or need to sample engine speed briefly before displaying it correctly.

 

dz01

Member

Mar 31, 2005

285

10

19

Massachusetts

Aug 29, 2020

#3

• Aug 29, 2020

• #3

Thx! yes, it does work fine after a few seconds. Does seem to calibrate as it makes a slight noise as well.

 

65ShelbyClone

Founding Member

Sep 9, 2000

4,675

38

119

Antelope Valley, SoCal

Aug 29, 2020

#4

• Aug 29, 2020

• #4

Do you still have the old factory voltage regulator powering the gauges?

 

dz01

Member

Mar 31, 2005

285

10

19

Massachusetts

Aug 31, 2020

#5

• Aug 31, 2020

• #5

yes, but it has been replaced

 

dz01

Member

Mar 31, 2005

285

10

19

Massachusetts

Sep 1, 2020

#6

• Sep 1, 2020

• #6

65ShelbyClone said:

Do you still have the old factory voltage regulator powering the gauges?

Click to expand...

would that make the tach delay?

 

7991LXnSHO

wanna catch the space herp

10 Year Member

Sep 1, 2010

7,387

2,745

194

Kearney, NE

Sep 1, 2020

#7

• Sep 1, 2020

• #7

Is this the right Rocketman tach?

Rocketman's Classic Cougar Innovations

If so, it has a start up and a processor, and I have seen gauges in new Fords do what you describe. So it’s not like the parts store Sun or Auto Gauge tachometers. It also looks like they have great support and you can call or message for confirmation.

 

dz01

Member

Mar 31, 2005

285

10

19

Massachusetts

Sep 4, 2020

#8

• Sep 4, 2020

• #8

7991LXnSHO said:

Is this the right Rocketman tach?

Rocketman's Classic Cougar Innovations

If so, it has a start up and a processor, and I have seen gauges in new Fords do what you describe. So it’s not like the parts store Sun or Auto Gauge tachometers. It also looks like they have great support and you can call or message for confirmation.

Click to expand...

Thanks!!

 

Reactions: 7991LXnSHO