Tach question
Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
Tach question
>Thanks, I found it all works well. Im idling at about 800
>and maxing out at 4000.. Is that normal? Not a very haigh
>reving eng... Thanks for all the help.
I'd say you are right on the money. My idle varies a bit, usually around 700 to 800. 4000 is plenty for a stock 300. See if you get the power surge at 2000 that I get in my '95 F150. Just seems that for moving out fast you have to keep it above 2000. BTW, what kind of tach did you get, where did you mount it, and what is the max RPM on the tach's scale?
>and maxing out at 4000.. Is that normal? Not a very haigh
>reving eng... Thanks for all the help.
I'd say you are right on the money. My idle varies a bit, usually around 700 to 800. 4000 is plenty for a stock 300. See if you get the power surge at 2000 that I get in my '95 F150. Just seems that for moving out fast you have to keep it above 2000. BTW, what kind of tach did you get, where did you mount it, and what is the max RPM on the tach's scale?
Post Fiend
Joined: Jan 2000
Posts: 5,860
Likes: 4
From: Metro Detroit (Redford)
Tach question
>That sounds perfect, and I also have that power surge on my
>truck.
>What kinda tach did you install?
As pictured above, it is a Datcon. I like it a lot as it is big and only goes to 4000 so it is easy to read fine increments. Nice thing is when I am cruising the freeway the needle is straight up, whereas your typical auto parts store 8000 RPM tach with the 300 I6 the needle hardly gets past the left side. The lighting on this tach leaves something to be desired, though I can read it at night. I believe the Datcon Tach is made for industrial equipment like, generators and such.
Power surge is curiously correlated with the torque peake. Seems that the best power band falls between torque peak and somewhere above the hp peak. Not sure if that is true of all engines.
>truck.
>What kinda tach did you install?
As pictured above, it is a Datcon. I like it a lot as it is big and only goes to 4000 so it is easy to read fine increments. Nice thing is when I am cruising the freeway the needle is straight up, whereas your typical auto parts store 8000 RPM tach with the 300 I6 the needle hardly gets past the left side. The lighting on this tach leaves something to be desired, though I can read it at night. I believe the Datcon Tach is made for industrial equipment like, generators and such.
Power surge is curiously correlated with the torque peake. Seems that the best power band falls between torque peak and somewhere above the hp peak. Not sure if that is true of all engines.
New User
Joined: Nov 2001
Posts: 15
Likes: 0
From: Surrey Canada
Tach question
I got the Hastings tach it goes to 8000rpm.. I will probably change that to maybe a 5000 or rpm tach. I haven't noticed any power surges, but ill keep that in mind and watch for it. I seem to be getting plenty of power up to about 3000-3300 rpm. I'll let you guy know what i decide with the tach, and about the power surges.
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