Installing a turbo timer in an AE86

[phrostbyte]

Hey peeps,
Obviously someone has done this before, wondering which wires are which on both the turbo timer itself and on the sprinter.

The turbo timer is an APEXi, with wires: Green, Red, Blue in the plug thing and Black and White seperate.

If anyone can help out with what colour wires to connect each to in the sprinter, it would be much appreciated. Obviously black is ground, but thats as far as I go on the guess work.

Cheers,
Kev.

[GTtwin]

OK, on your timer.

Red - 12v constant power

Black - Ground

Green - Ignition 1 (Primary). This senses the ignition being turned off. Connect to the ignition barrel wire that has power with ignition on and whilst cranking only!

Blue - Ignition 2 (Secondry, sometimes needed for thermo fan etc). This is hooked to your second ignition wire, the one that has power on but not whilst cranking. Some cars don't have an IGN 2, so hook it to your accessory or nothing at all.

Your thin white wire may need to be connected to your handbrake switch. You can just ground this wire at a testing stage to see if it works.


Now on your vehicle:
Not being a Hachi man myself, i'm not 100% here but this may still help.

White or White/Red - 12v Constant power
Blue - Accessory supply
Black/Yellow - Ignition Primary
Black/White - Starter Solenoid (Not used)

Check these with a test light first! I'm only going off common Toyota ignition barrels from the 80's here and I don't want to see you destroy car/timer from what i've stated.

[phrostbyte]

Thanks heaps GTtwin, rep+ for you

Yep those ignition barrel wires look right too, I will give em a quick test with a multimeter to be sure though.

For future reference of the turbo-timer wires: http://www.apexi-usa.com/pdfWiring/10.pdf

Cheers,
Kev.

[GTtwin]

Hey, and I thought my head was only full of useless info. Good stuff.

[ViPeR_NiPPleX]

Good to know you have high self esteem GTtwin

Kev, why in the world do you have an Apexi turbo timer?

[phrostbyte]

Lol a turbo timer isn't just for a turbo. After giving your engine a big thrashing at high RPMs the worst thing you can do is turn it straight off. It's best to let the water and oil circulate at idle for atleast 20-30 seconds. It's in my cousins sprinter, and I may get one soon too.

Re-cap after installation:

[firewall]---------[plug]---------[ignition barrel]
---------------------------------^-------------------------
wire colours in reference to this point

Black/Red - 12v Constant power
Blue - Accessory supply
Black/Yellow - Ignition Primary
Black/White - Starter Solenoid (Not used)

Cheers,
Kev.

[Yian]

After giving your engine a big thrashing at high RPMs the worst thing you can do is turn it straight off. It's best to let the water and oil circulate at idle for atleast 20-30 seconds.

You mean.... you trash it right up to your door? To the moment you pull the handbrake up your RPMs sit at 8,000?

[phrostbyte]

Lol, my theory is that when you are thrashing it, your engine is working hard, therefore heating up. Even with a good water cooling system, having no oil cooler means that the oil would be at a higher temperature than the water no doubt. If you turn off your car while the oil is at let's say 110 degrees, you have a good chance of some of that oil hardening onto the surfaces it is touching. If you leave it running for that extra 30 seconds in idle with no load, the oil will transfer some of its heat to the block, then the water running through the block will be cooled via the radiator, therefore evening out both the temperature of the water and oil to the standard running temperature, which i think is something like 85-90 degrees, and reducing the chance of baking oil.

Anyway that's a theory, I have no guide I am following and I havent had anyone teach me any of that, if someone wants to correct me, please do so.

Quote from some site about a turbo engine.
"If you turn off your car after running it hard, oil can turn solid from the intense heat present around the turbocharger."

I know that in this case we don't have the 'intense' heat of a turbo present, but none the less, why not be safe rather than sorry?

Kev.

[Draven]

dude... please tell me you're not serious!

the reason for a turbo timer is that turbos heat up to several hundred degrees. if you switch off your engine while the turbo is glowing red hot, it's going to boil coolant and oil and generally do bad stuff.
Engines, on the other hand, pretty much sit around 100 degrees, which is no danger at all (remembering your coolant system is under pressure, so it has a much higher boiling point than 100 degrees).

As long as you don't go swiching your engine off at 7000rpm, 5 seconds at idle is more than enough. (ie: time taken to put into neutral, put handbrake on, and switch ignition off)

[ViPeR_NiPPleX]

oh mcgarnicle.

[oldcorollas]

geez guys, don't be that tough
sure there is merit to cooling car down a bit, but usually that involves driving nicely (legally) for the last minute or two... even for turbos this is usually enough.

whether it's worth it on an NA car to give someone better acess to your ignition system, i'm not sure...

and anyway, aren't turbo timers not legal for use in Oz?

edit:

[Draven]

true.
but who am I to advise people if they want to make their car easy to hotwire, add unnecessary equiptment, and make it defectable at the same time!

[oldcorollas]

TeH RaVeN

i still vote for sitting in car while it runs, and will remove my turbo timer and bin it once i get back to theft ridden Oz

[phrostbyte]

Just to add a note, the AE86 is a track car and will have a 4AGTE in it within the next month or two...



Same with the principle of adding one to mine, soon to be track car with 4AGTE...

Kev.