Installing an aftermarket tach on a car without one

[matt.young]

ok, just installed my tacho. pics will be posted later. now im just wondering if anyone can tell me where the 1998 Festiva (Aspire) red-lines and how far the tacho goes. cause mine goes to 8000 :lol:

[aithanmier]

i wouldn't take it past 6500 on a stock bottom end but thats just me...

[2fastfesti26]

i know i asked the question a while ago but can you guys tell me the steps to put a tach in a 93 festiva L ?

[aithanmier]

hook a tach signal wire to the positive side of your ignition coil.

[FB71]

hook a tach signal wire to the positive side of your ignition coil.

ground side. positive doesn't duty cycle.

[aithanmier]

ooops.. well it's been awhile since i installed mine ops:

[seanpaintsflames]

Hey, I put a tach on my 89, wired to the negative side, but the rpms aren't correct. It looks okay at idle, but it only revs to 2500, when it sounds like 5000. What's the deal?

[FB71]

its set to 8cyl mode. there should be a switch, jumpers, or wire loops to configure it for 4cyl.

4cyl, 1 crank rev = 2 ignition events

8cyl, 1 crank rev = 4 ignition events

[Safety Guy]

When I hook up my aftermarket tach, I'll set it to "12 cylinder mode." That should be good for an extra 100 hp or so.

Then I'll sell them as "superpower tach kits" on ebay! :lol:

Karl

[seanpaintsflames]

Ohhhhh, that makes sense. It seems its only reading half of everything. I guess I shouldn't have thrown the instructions away, huh?

[2fastfesti26]

ahh who needs instrutions anyway.. right??

i always regret saying that phrase

[FlowmasterFestiva]

tach

i put a 3.5" sunpro supertach II in my 93 festiva L it was kinda ez cept when i cut the ign wire trying to splice it. quick wire strippers/splicers dont work too good on wires that small it just ripped them apart but i taped it temp and fixed it later after i got home put it on where i worked cause there was nothin else to do