ok so last night i hooked up my sunpro 5in tach and i'm driving around and went to take it up to 8200 and hit the revlimiter at about 7800??? maybe its the tach but it shouldn't be i used the tach on my old mini me its weird. the tach tops out a 10k so nothin stopping it not to big of a deal if its the tach. the motors still making great power @ 7800 maybe the ecu.

not much is done to the motor cold air and clutch, no cat.

thanks for any help

 

You've got a auto ecu. You can remove the limiter by moving the resistor from r67 to r68.

 

honestly, its probably the tach, my friend had one in his civic and it read a good bit lower than the actual engine rpm

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mar778c &raquo;</TD></TR><TR><TD CLASS="quote">You've got a auto ecu. You can remove the limiter by moving the resistor from r67 to r68.</TD></TR></TABLE>Got a picture?

 

see here:

http://pgmfi.org/resources/FAQ...l.jpg

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nappyroots827 &raquo;</TD></TR><TR><TD CLASS="quote">honestly, its probably the tach, my friend had one in his civic and it read a good bit lower than the actual engine rpm</TD></TR></TABLE>

I got me a sunpro and it reads about 200 rpm lower. I redline at 6500 but it reads like 6300. Wutever it was $50.

 

Yeah i use to have a tach in my old old hatch while back, it read off like 100-200 rpm is all, but overtime it seemed to correct itself and was pretty dead on and i hit rev limiter.

 

did it go to 8200 before the tach install?
is ur dash tach still hooked up?
if so does it read the same rpm as the tach?

 

My old hatch before my old one was a 90 STD, the standard model does not come with a factory tach, hence having to install a tach.

Btw you know what pisses me off is seeing a saturn station wagon in a parking lot thats automatic with a TACH, but then these older cars "that are still more performance" then even that turd don't have a tach, and like 80% of them were made manual!?, wtf is up with that.

 

haha yeah. umm like stated above the tach is probly off a cuple hundred rpms. they are bad about that. just get u a si guage cluster then u will have a accurate tach.

 

stock tach don't work it stays a 3k aways my falt but i am thinking about the 00 si cluster. thanks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by y-49 &raquo;</TD></TR><TR><TD CLASS="quote">haha yeah. umm like stated above the tach is probly off a cuple hundred rpms. they are bad about that. just get u a si guage cluster then u will have a accurate tach.</TD></TR></TABLE>

Lol, aftermarket is still more accurate than a stock Si tach...

 

Well the hatch i got now, is 89 si, "another project" and well anways it has a stock tach of course and with the d series it seems pretty acurate to me.

 

Yea i think my stock tach is pretty accurate don't have anything to compare it against...

Whats funny is that the STD didn't have a tach but the 4dr auto lx cluster i am rock for a few months out of the year has one

 

I had the same problem. Moving the resistor is very easy.