Sun Tach info - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old Sep 25th, 04, 09:38 AM Thread Starter
Join Date: Jun 2001
Posts: 259

I picked up and old Sun tach #SST90. I opened up the back and it states" use with EB o/r WPA series transmitter. Do I need to come up with a sending unit for this tach, or can I hook up the + and - to the coil? Did these transmitters also act as rev limiters? How much do they cost on the open market? Thanks in advance
restoman is offline  
Sponsored Links
post #2 of 6 (permalink) Old Sep 25th, 04, 10:49 AM
Senior Tech
Join Date: May 2001
Location: Ashby,MN, USA
Posts: 8,305

have you tried hooking it up yet? never heard of any extra parts you need to buy to hook up a tach, unless you have an MSD box.
Sun tachs are fun- you can actually see the rpm's climb a couple seconds after you let off the gas, which, if nothing else, looks impressive.

you don't plan sincerity.
you have to make it up on the spot.

wanna hear about 20 years ago when i was too smart to know any better?
novaderrik is offline  
post #3 of 6 (permalink) Old Sep 26th, 04, 05:43 PM Thread Starter
Join Date: Jun 2001
Posts: 259

I hate to hook the thing up just to fry the circuts. I know the very early Sun tachs used sending units but I am not sure about this one. Anyone else have this problem?
restoman is offline  
post #4 of 6 (permalink) Old Sep 26th, 04, 09:32 PM
Senior Tech
Join Date: Feb 2002
Location: N.W. Washington
Posts: 7,965

dont know the specific model number, but the old school sun tachs used to need a box(transmitter) that went along with the tach, tach went to the box, box went to coil. if i remember correct its about the size of an msd box, but a bit smaller. i think all they are is the workings/electronics that come in the newer tachs, but they used a seperate box to hold them, likely because the old tech stuff just took up more space. kind of like how computers went from taking up a room to what they are now.
is it one of the larger chrome, glass faced types you see in the old drag photos? i think they are very cool, from a nostalgia point, but you have to have the transmitter, or it wont work. i'll bet you can find a transmitter for it still, on ebay or something.
good luck with it


1968 rs with an old school 354" SB2.2 pump gas motor.

Repetition does not transform a lie into a truth.

Franklin D. Roosevelt
68rs406 is offline  
post #5 of 6 (permalink) Old Sep 27th, 04, 04:01 AM Thread Starter
Join Date: Jun 2001
Posts: 259

Yes, it is the chrome stand alone tach that you see on steering columns of the older muscle cars. I know what the sending units look like, but I have a friend that connected the + and - directly to the coil, and it worked ok. I know some of the Sun Super Tachs can be connected directly to the coil. My question is does mine need the sending unit, Is there a website that specializes in aftermarket Sun tachs? Thanks again
restoman is offline  
post #6 of 6 (permalink) Old Sep 27th, 04, 09:45 AM Thread Starter
Join Date: Jun 2001
Posts: 259

Attention Tach wizards, i need your help!!!!!
restoman is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome