AutoMeter Tach not reading correctly!

W

WICKED50LTR

Founding Member

Aug 28, 2002

257

0

17

Central NJ

May 10, 2004

#1

• May 10, 2004

• #1

I just installed my AutoMeter 5' Tach and noticed that it doesnt exactly match up with the stock Tach in my 92GT. When im around 2800rpms, the AutoMeter reads around 2500., its always about 2-300rpms off? Any suggestions or maybe i didnt install it correctly? Its wired right to the green wire under the hood that adapts to the coil. There are no loose connections at all, i already checked. Could it be the guage is shady, it was used?

 

Legendary

Founding Member

Oct 10, 2002

1,925

0

0

City of Angels

May 10, 2004

#2

• May 10, 2004

• #2

Actually it's the stock rpm guage that might be suspect. They are known to be off.

 

NYC LSC

Founding Member

Feb 16, 2001

626

0

0

Staten Island, NYC

May 10, 2004

#3

• May 10, 2004

• #3

Stock gauges are notrious for being wrong. I'd not even pay attention ot it after adding the AutoMeter.

 

NoSloCoupes

"I would do anything for a FREE muffler"

Founding Member

Mar 4, 2000

2,705

2

58

Clinton,IL

May 10, 2004

#4

• May 10, 2004

• #4

Yeah, its the stocker that should be off. Although my autometer is 100rpm off...using my mallory tach test feature.

 

NosPony

New Member

Apr 2, 2004

278

0

0

Canton, Il

May 10, 2004

#5

• May 10, 2004

• #5

I have same monster tach in my car mine is about 200-300 rpms differant too normal. Stock tach is know to be off. Trust the autometer it costs a little more.

 

P

PRO50SC

New Member

Dec 28, 2003

1,012

1

0

Olney, Maryland

May 10, 2004

#6

• May 10, 2004

• #6

WICKED50LTR said:

I just installed my AutoMeter 5' Tach and noticed that it doesnt exactly match up with the stock Tach in my 92GT. When im around 2800rpms, the AutoMeter reads around 2500., its always about 2-300rpms off? Any suggestions or maybe i didnt install it correctly? Its wired right to the green wire under the hood that adapts to the coil. There are no loose connections at all, i already checked. Could it be the guage is shady, it was used?

Click to expand...

I have the same problem. I bought mine used too. It's off about the same as yours except when I'm at the track. When the stock tack reads 6000 rpm the Autometer is only reading 5000. At that point, I know the Autometer is wrong and not the factory. I may send it in to Autometer to have it checked.

 

F

Fostang

Founding Member

May 8, 2002

1,400

0

36

Stockton, Ca

May 10, 2004

#7

• May 10, 2004

• #7

REV it higher man.

Till the rev limiter of 6250........

See what each tach says.

 

P

PRO50SC

New Member

Dec 28, 2003

1,012

1

0

Olney, Maryland

May 10, 2004

#8

• May 10, 2004

• #8

Fostang said:

REV it higher man.

Till the rev limiter of 6250........

See what each tach says.

Click to expand...

I'll send you the bill!!

 

cevtv

Founding Member

Sep 15, 2002

1,113

0

37

Massachusetts

May 10, 2004

#9

• May 10, 2004

• #9

PRO50SC said:

At that point, I know the Autometer is wrong and not the factory.

Click to expand...

I doubt it.

 

ninety15.0

New Member

Mar 10, 2004

1,336

0

0

May 11, 2004

#10

• May 11, 2004

• #10

I have a 5" AM sport comp in my car and it does the same thing....the tach costs about 250 and the stocker is known to be off. Mine in normally only off by a little but its noticable. I would trust the big one!! haha it does cost more and AM is known for making very accurate guages, not FORD!

 

K

ka0tyk

Founding Member

Oct 10, 2001

1,610

0

0

Los Angeles, CA

May 11, 2004

#11

• May 11, 2004

• #11

i have an autometer tach and mine is about 200-400 rpm's off at high rpms... the autometer is reading the actual coil fire, while the stock tach reads the PIP sensor on the distributor... id rather trust the actual coil firing rather than yet ANOTHER faulty sensor...

 

HarleyFordFan

New Member

Jan 4, 2004

239

0

0

May 11, 2004

#12

• May 11, 2004

• #12

ummm.. do any of you guys have a problem with your AM tach's needle bouncing around all the time?

 

K

ka0tyk

Founding Member

Oct 10, 2001

1,610

0

0

Los Angeles, CA

May 11, 2004

#13

• May 11, 2004

• #13

HarleyFordFan said:

ummm.. do any of you guys have a problem with your AM tach's needle bouncing around all the time?

Click to expand...

nope mine is nice and steady. i had an MSD 6A ignition with a blaster coil as well... nice and smoooth... it acutally moves up and down quicker than the stock tach...

 

88stangmangt

Active Member

Nov 25, 2003

2,332

1

48

Stafford,VA

May 11, 2004

#14

• May 11, 2004

• #14

i have a ford racing 5" tach made by autometer it is a ver nice tach works great. more accurate than stock by-far.

 

Ekliptix

New Member

Apr 26, 2003

13

0

1

May 11, 2004

#15

• May 11, 2004

• #15

MY Autometer C2 is 2000 rpm too high at the real 5500rpm.

 

CobraWannabe

Member

Jul 16, 2003

321

0

17

Lancaster, PA

May 12, 2004

#16

• May 12, 2004

• #16

My Autometer tach is off too. And the bouncing problem may have something to do with the + or - connection. In my old Stang the battery was quitting on me and when it was low on juice the tach would start flipping out. Check all your connections.

 

stangbear427

Active Member

Nov 11, 2002

2,401

1

49

New England

May 12, 2004

#17

• May 12, 2004

• #17

Ekliptix said:

MY Autometer C2 is 2000 rpm too high at the real 5500rpm.

Click to expand...

If I paid all that money for a C2 and thought it was wrong I'd be flipping out. Autometer has the best customer service in the industry- why haven't you done something about it?

 

N8Miller

I need NOS....make it 2 of the big ones

Founding Member

Jul 26, 2000

2,661

0

0

Kingston, PA, USA

May 12, 2004

#18

• May 12, 2004

• #18

I have a 5" sunpro tach and i love it. it is more accurate. it is like 300 difference at all time than the stocker.

pro50sc: i doubt that the autometer is 1000 rpms off at any time. how do you have it wired in? i have mine directly into the 6al box

 

ninety15.0

New Member

Mar 10, 2004

1,336

0

0

May 12, 2004

#19

• May 12, 2004

• #19

Ya that sounds kind of rediculous that its 2000 rpm off!!! I would send it back....either that or check my wiring because thats not normal.

 

maverick0716

Founding Member

Jan 12, 2002

3,924

0

56

Chilliwack, BC, Canada

May 12, 2004

#20

• May 12, 2004

• #20

PRO50SC said:

I'll send you the bill!!

Click to expand...

Oh, you're one of those eh?......That's what the rev limiter is for you know......so you DON'T wreck the engine if you over rev.