My Tach Is Off By 800rpm Or So... - NoPistons -Mazda Rx7 & Rx8 Rotary Forum
NoPistons -Mazda Rx7 & Rx8 Rotary Forum


2nd Generation Specific 1986-1992 Discussion

Reply
 
 
 
Thread Tools Search this Thread
Old 03-29-2004, 09:39 PM   #1  
Member
Thread Starter
 
Join Date: Nov 2003
Posts: 53
Thumbs up

My tach is off by 800rpm or so when compared to tach reading from Microtech. Is there any way to fix this? Do I have to swap the gauge cluster out or something? If there is no fix, would installing an aftermarket tach solve the problem? Thanks in advance...
Rookie84 is offline   Reply With Quote
Old 03-29-2004, 09:49 PM   #2  
Senior Member
 
Join Date: Dec 2002
Location: VA
Posts: 389
Default

yeah have a similar problems with my fd....the oem tach reads about 300 rpms lower than the pfc....whats the deal?
TURBOX2 is offline   Reply With Quote
Old 03-29-2004, 10:43 PM   #3  
Senior Member
 
Join Date: Oct 2002
Posts: 1,019
Default

thats the reason to go to an aftermarket tach, most factory tachs are not accurate and they lag behind the actual RPM. The inaccuracy increases the higher you rev too.
djgiantrobot is offline   Reply With Quote
Old 03-29-2004, 11:22 PM   #4  
Senior Member
 
Join Date: Jun 2003
Location: Culpeper, VA
Posts: 572
Default

Gravity also has an affect on the gauges also. Mine is accurate untill it gets a little past 4000, then it just starts to fall. After 100K miles, things start to wear out and get loose. It just happens.
roadkill669 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
On startup, tach revs to 7k, beeps, then shuts off Soundave 2nd Generation Specific 0 07-25-2011 11:43 AM
Blow Off Valve Not Blowing Off teknics 2nd Generation Specific 9 10-31-2003 11:28 AM
Tach Problem.....tried New Tach. rotogod 3rd Generation Specific 0 06-29-2003 12:51 PM
Tach issue on the 10th AE phinsup 2nd Generation Specific 7 07-21-2002 02:38 PM
Check out these new tach's isamu Insert BS here 4 01-07-2002 09:25 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -5. The time now is 04:05 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.