My tach is off by about 400 rpms at redline, if you put in an aftermarket tach like autometer etc, and wire the aftermarket tach to the blue signal wire, will the aftermarket tach now read dead on to the actual rpms?

 

the aftermarket tach will be right

stock tachs are innacurate and suck

 

thanks, I guess OEM dash just gets the signal from a poor source? I wonder if it's possible to re-wire the signal to a better soruce, ie. of the distributor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ELSpool &raquo;</TD></TR><TR><TD CLASS="quote">I guess OEM dash just gets the signal from a poor source? I wonder if it's possible to re-wire the signal to a better soruce, ie. of the distributor.</TD></TR></TABLE>

the OEM tach is wired off the distributor.

and yes , the factory tach is slightly off , its fast by about 200 rpms in the upper range.

the peak hold function on a VAFC will tell you that.

 

The dyno told me it was off, and more than 200rpms. So why is it off if it's wired off the distributor?

 

poor electronics I guess.

its a civic , it was designed to get groceries...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Doctor CorteZ &raquo;</TD></TR><TR><TD CLASS="quote">poor electronics I guess.

its a civic , it was designed to get groceries...</TD></TR></TABLE>

I love it

 

maybe they did it on purpose so the people who are really late dont redline the motor on the way to get milk and cereal!!! haha

 

My Tach says 8500 but VAFC says 9300... not just off by a little i see

 

Just like everything else, if you want accurate it is going to cost you.
The civic may be well engineered but costing less is always a factor.

 

my tach reads 9000 at my 8500rpm rev limter. the gauge itself is inaccurate.

 

same here lol its off about 400

 

yea.. i dont remember if it was like this before the swap, but after i put my gsr engine in the tac now rests at 0 when i'm idling.. My tack is off by so much. it really sucks. Then I never know when i'm gonna hit the rev limiter at the track, so it messes up my runs sometimes.

too bad my mom threw away my gsr cluster wiring.. GRRRRRRRRRRRRRRRRR

 

I idle at 100 RPM if you want to know how accurate it is.