3VZ Tach Question...

Mark_Dorman · 06-02-2009, 04:32 AM

So I've read the Tach mod sticky thread but was wondering if I can just use the tach out of my donor (92 V6 camry) car for my 3VZ swap? Thanks

Oteck · 06-02-2009, 02:45 PM

yes you can, thats what i did with mine

Mark_Dorman · 06-02-2009, 03:09 PM

Cool...thanks Oteck

RandomHero · 06-02-2009, 04:08 PM

question, are you just changing the gauge faceso this way the redline is correct or, what are we doing here?

theres a bunch of camry v6s out at the junkyard so having a accurate and proper tach would be nice

Mark_Dorman · 06-02-2009, 04:20 PM

You will want the actual electronic part of the tack under the face. The turbo tach face has a more accurate redline but that's not the biggest worry for me at this point.

Oteck · 06-02-2009, 04:59 PM

can you compare the 3vz tach w/ the mr2? the one i got from the 1mz matches perfectly so i just had to swap the face so it may be different for you. also wear a glove when doing this, the face is easy to damage

V6'er · 06-03-2009, 08:15 PM

I have a '94 Camry tach as a spare, and the circuit board is upside down. The only way to make it work is to remove the needle, assemble it to the MR2 face/plastic frame, then put the needle back on and calibrate the position with a known tach (or frequency).

Mark_Dorman · 06-03-2009, 08:24 PM

So is there no way to have a plug and play tach for the 3vz? I though for sure the 3vz tach from the camry wouldn't need any calibrating

Would the 97-99 1MZ V6 Camry Tach be a plug and play swap for the 3vz?

Levi · 06-04-2009, 10:20 AM

He means that whenever you mess with the tach you just need to reset the needle by taking it out and putting it back to 0.

After I swapped the board on the back of my tach, my rpm would shoot to 1100 with just putting the key in the ignition, not starting it. So I just put the key in the ignition, removed the needle from 1100 and put it back in at 0. Then it was perfect.

I don't know if you consider that plug or play or not but its very easy.

Oteck · 06-04-2009, 10:39 AM

Quote:

Originally Posted by Levi

He means that whenever you mess with the tach you just need to reset the needle by taking it out and putting it back to 0.

After I swapped the board on the back of my tach, my rpm would shoot to 1100 with just putting the key in the ignition, not starting it. So I just put the key in the ignition, removed the needle from 1100 and put it back in at 0. Then it was perfect.

I don't know if you consider that plug or play or not but its very easy.

yep thats what i did years ago when i got her running. pull out the needle and set it on acc then place it on zero. theres no need to go out of your way just to calibrate it by trying to emulate the signal. But this is assuming the face on the 3vz matches the sweep on the mr2

Mark_Dorman · 06-04-2009, 03:05 PM

Gotcha...yeah, I've removed the tach from my NA and had to do that "calibration". Thanks for your help guys!

V6'er · 06-04-2009, 09:49 PM

It's usually more accurate to have known RPM above zero, but hey, if that works, they yay!

06-02-2009, 04:32 AM	#1 (permalink)
Mark_Dorman So long MR2's... Join Date: Apr 2008 Location: Pasadena, CA Posts: 4,666 Thanks: 97 Thanked 86 Times in 82 Posts Blog Entries: 1 iTrader Rating: (26/100% )	3VZ Tach Question... So I've read the Tach mod sticky thread but was wondering if I can just use the tach out of my donor (92 V6 camry) car for my 3VZ swap? Thanks

06-03-2009, 08:24 PM	#8 (permalink)
Mark_Dorman So long MR2's... Join Date: Apr 2008 Location: Pasadena, CA Posts: 4,666 Thanks: 97 Thanked 86 Times in 82 Posts Blog Entries: 1 iTrader Rating: (26/100% )	So is there no way to have a plug and play tach for the 3vz? I though for sure the 3vz tach from the camry wouldn't need any calibrating Would the 97-99 1MZ V6 Camry Tach be a plug and play swap for the 3vz? Last edited by Mark_Dorman; 06-03-2009 at 08:31 PM..

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

06-02-2009, 02:45 PM	#2 (permalink)
Oteck Eye'm the Str⑨ngest Join Date: Aug 2005 Location: Burnaby B.C. Posts: 4,946 Thanks: 11 Thanked 172 Times in 157 Posts Blog Entries: 3 iTrader Rating: (5/100% )	yes you can, thats what i did with mine

06-02-2009, 03:09 PM	#3 (permalink)
Mark_Dorman So long MR2's... Join Date: Apr 2008 Location: Pasadena, CA Posts: 4,666 Thanks: 97 Thanked 86 Times in 82 Posts Blog Entries: 1 iTrader Rating: (26/100% )	Cool...thanks Oteck

06-02-2009, 04:08 PM	#4 (permalink)
RandomHero Cage Fighter Join Date: May 2009 Posts: 106 Thanks: 5 Thanked 0 Times in 0 Posts iTrader Rating: (0/0% )	question, are you just changing the gauge faceso this way the redline is correct or, what are we doing here? theres a bunch of camry v6s out at the junkyard so having a accurate and proper tach would be nice

06-02-2009, 04:20 PM	#5 (permalink)
Mark_Dorman So long MR2's... Join Date: Apr 2008 Location: Pasadena, CA Posts: 4,666 Thanks: 97 Thanked 86 Times in 82 Posts Blog Entries: 1 iTrader Rating: (26/100% )	You will want the actual electronic part of the tack under the face. The turbo tach face has a more accurate redline but that's not the biggest worry for me at this point.

06-02-2009, 04:59 PM	#6 (permalink)
Oteck Eye'm the Str⑨ngest Join Date: Aug 2005 Location: Burnaby B.C. Posts: 4,946 Thanks: 11 Thanked 172 Times in 157 Posts Blog Entries: 3 iTrader Rating: (5/100% )	can you compare the 3vz tach w/ the mr2? the one i got from the 1mz matches perfectly so i just had to swap the face so it may be different for you. also wear a glove when doing this, the face is easy to damage

06-03-2009, 08:15 PM	#7 (permalink)
V6'er All Torque, All the Time Join Date: Apr 2005 Location: Charlotte, NC Posts: 899 Thanks: 0 Thanked 26 Times in 19 Posts iTrader Rating: (1/100% )	I have a '94 Camry tach as a spare, and the circuit board is upside down. The only way to make it work is to remove the needle, assemble it to the MR2 face/plastic frame, then put the needle back on and calibrate the position with a known tach (or frequency).

06-04-2009, 10:20 AM	#9 (permalink)
Levi Cage Fighter Join Date: Jul 2007 Posts: 225 Thanks: 4 Thanked 15 Times in 9 Posts iTrader Rating: (1/100% )	He means that whenever you mess with the tach you just need to reset the needle by taking it out and putting it back to 0. After I swapped the board on the back of my tach, my rpm would shoot to 1100 with just putting the key in the ignition, not starting it. So I just put the key in the ignition, removed the needle from 1100 and put it back in at 0. Then it was perfect. I don't know if you consider that plug or play or not but its very easy.

06-04-2009, 03:05 PM	#11 (permalink)
Mark_Dorman So long MR2's... Join Date: Apr 2008 Location: Pasadena, CA Posts: 4,666 Thanks: 97 Thanked 86 Times in 82 Posts Blog Entries: 1 iTrader Rating: (26/100% )	Gotcha...yeah, I've removed the tach from my NA and had to do that "calibration". Thanks for your help guys!

06-04-2009, 09:49 PM	#12 (permalink)
V6'er All Torque, All the Time Join Date: Apr 2005 Location: Charlotte, NC Posts: 899 Thanks: 0 Thanked 26 Times in 19 Posts iTrader Rating: (1/100% )	It's usually more accurate to have known RPM above zero, but hey, if that works, they yay!