Harlan 2-Step is the SH!T
08-01-2002, 07:14 AM
#21
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Re: Harlan 2-Step is the **** On the '98 I'd assume that you could find a way to use the Cruise Control Clutch Switch with the 2-step (if you have cruise, that is <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> ).
[edit] Oops, some wrong assumptions.
If you use a double pole, single throw switch, and a small relay, you can probably get it to work with the CCCS. The switch would take out the cruise control line and switch it over to a relay control (+12V and a wire going to the noid of the relay). Then through the relay, through the CCCS, and then to ground. Hook the 2-step up to the normally closed leads of the relay. When the clutch is depressed, the relay will deenergize, and the contacts will close on the relay, thereby making the circuit to ground and cranking up the 2-step. Flip the switch when you want to go back to cruise control enabled. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Here's what I'm talking about.
FWIW,
Andrew
<small>[ August 01, 2002, 08:25 AM: Message edited by: Camaroholic ]</small>
[edit] Oops, some wrong assumptions.
If you use a double pole, single throw switch, and a small relay, you can probably get it to work with the CCCS. The switch would take out the cruise control line and switch it over to a relay control (+12V and a wire going to the noid of the relay). Then through the relay, through the CCCS, and then to ground. Hook the 2-step up to the normally closed leads of the relay. When the clutch is depressed, the relay will deenergize, and the contacts will close on the relay, thereby making the circuit to ground and cranking up the 2-step. Flip the switch when you want to go back to cruise control enabled. <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Here's what I'm talking about.
FWIW,
Andrew
<small>[ August 01, 2002, 08:25 AM: Message edited by: Camaroholic ]</small>
08-01-2002, 07:18 PM
#22
Re: Harlan 2-Step is the **** That looks feasible. I am an electric idiot. A DPST can be gotten at any Radio Shack type store?
Camaroholic have you seen any of the other posts concerning the 2-step - in regards to nitrous? I am presently using a relay, run thru the MSD window switch. Under your switch, every time I push in the clutch the 2-step would come on, right? I suppose that I could switch it off after launch. The way the 99+ car are launching is push in clutch, push on arming switch, release arming switch, the 2-step is ready. When the clutch is released the 2-step is disengaged until you push the arming switch again. The 99+ are run thru a computer hook up.
Caramoholic, which clutch switch could I hook the 'ground' from the 2-step to perform the same function?
Help anyone?
David
Camaroholic have you seen any of the other posts concerning the 2-step - in regards to nitrous? I am presently using a relay, run thru the MSD window switch. Under your switch, every time I push in the clutch the 2-step would come on, right? I suppose that I could switch it off after launch. The way the 99+ car are launching is push in clutch, push on arming switch, release arming switch, the 2-step is ready. When the clutch is released the 2-step is disengaged until you push the arming switch again. The 99+ are run thru a computer hook up.
Caramoholic, which clutch switch could I hook the 'ground' from the 2-step to perform the same function?
Help anyone?
David
08-02-2002, 06:39 AM
#23
Re: Harlan 2-Step is the **** </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Reckless:
<strong>Matt...before I try mine out, just want to make sure all is OK.
I wired the white wire to the same wire that feeds the transbrake solenoid, so when the transbrake is engaged, so will the 2-step.
And I wired the gray wire to ground.
Is this right?
Thanks!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes Todd, that's the correct way to do it. I'm guessing you're running a relay w/ the brake button, and that in turn runs the solenoid. You should have the 2 step wire running off that same button. With the switch making the connection to ground. The inputs to the 2 step are pretty well protected, a direct connection to 12V won't hurt them.
I've had minimal luck on the 98's yet. I still think the ABS connection is the best place, i just need to figure out why it doesn't trigger.
sorry for the slow responses. Got a big deadline at work next week, and the last few weeks have been lots of 10 hour days. Not to mention the car on stands in the driveway <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
I will find the 98 fix.
<strong>Matt...before I try mine out, just want to make sure all is OK.
I wired the white wire to the same wire that feeds the transbrake solenoid, so when the transbrake is engaged, so will the 2-step.
And I wired the gray wire to ground.
Is this right?
Thanks!</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">Yes Todd, that's the correct way to do it. I'm guessing you're running a relay w/ the brake button, and that in turn runs the solenoid. You should have the 2 step wire running off that same button. With the switch making the connection to ground. The inputs to the 2 step are pretty well protected, a direct connection to 12V won't hurt them.
I've had minimal luck on the 98's yet. I still think the ABS connection is the best place, i just need to figure out why it doesn't trigger.
sorry for the slow responses. Got a big deadline at work next week, and the last few weeks have been lots of 10 hour days. Not to mention the car on stands in the driveway <img border="0" title="" alt="[Sad]" src="gr_sad.gif" />
I will find the 98 fix.
08-03-2002, 09:32 PM
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Re: Harlan 2-Step is the **** This is in reference to the '98 solution.
The momentary (arming) operation would work the same. A momentary pushbutton. This would connect to the white wire of the 2-step.
The relay diagram that I drew would have the gray wire switched to ground through the relay. The white wire would work as normal.
So, you're only grounding one wire through the relay.
I'm going to try and get mine wired up soon.
-Andrew
The momentary (arming) operation would work the same. A momentary pushbutton. This would connect to the white wire of the 2-step.
The relay diagram that I drew would have the gray wire switched to ground through the relay. The white wire would work as normal.
So, you're only grounding one wire through the relay.
I'm going to try and get mine wired up soon.
-Andrew
08-04-2002, 06:17 AM
#26
Re: Harlan 2-Step is the **** </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Reckless:
<strong>Actually, I'm not using a relay for the t-brake. Should I be?
Todd</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It's not realy required, but i hope you're using a big switch <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Although I'm not certain, but i bet the T-brake solenoid pulls a decent amount of current.
Won't effect the 2 step input however, just make sure you're switching the ground side of the solenoid.
<strong>Actually, I'm not using a relay for the t-brake. Should I be?
Todd</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">It's not realy required, but i hope you're using a big switch <img border="0" title="" alt="[Smile]" src="gr_stretch.gif" /> Although I'm not certain, but i bet the T-brake solenoid pulls a decent amount of current.
Won't effect the 2 step input however, just make sure you're switching the ground side of the solenoid.
08-04-2002, 09:33 AM
#27
Re: Harlan 2-Step is the **** Sorry for the ignorance Matt, but I am electrically challenged <img border="0" title="" alt="[Big Grin]" src="gr_grin.gif" />
"Switching the ground side"? What does that mean?
My current rigging is this:
10 gauge wire from battery to 12v toggle switch (for arming); out from arming switch to momentary switch on shifter; then hot goes directly to positive on the t-brake solenoid; the solenoid ground is directly to the body. I tapped into the hot from the momentary switch to power the 2-step.
It sounds like you're saying is the momentary switch should simply act as the ground, instead of acting as the temporary power supply?
I know you are busy, and I really appreciate all the assistance, but I want this stuff to be right. I have an extra relay available. Can you email me a diagram or instructions on how to wire everything correctly so I don't fry something like I did your shiftlight? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Thanks man!
Todd
"Switching the ground side"? What does that mean?
My current rigging is this:
10 gauge wire from battery to 12v toggle switch (for arming); out from arming switch to momentary switch on shifter; then hot goes directly to positive on the t-brake solenoid; the solenoid ground is directly to the body. I tapped into the hot from the momentary switch to power the 2-step.
It sounds like you're saying is the momentary switch should simply act as the ground, instead of acting as the temporary power supply?
I know you are busy, and I really appreciate all the assistance, but I want this stuff to be right. I have an extra relay available. Can you email me a diagram or instructions on how to wire everything correctly so I don't fry something like I did your shiftlight? <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
Thanks man!
Todd
08-08-2002, 06:53 AM
#30
Re: Harlan 2-Step is the **** Todd
You need to wire it like this
pardon my attempt at ascii wiring diagrams <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
12V---------|T-brake solenoid|----**---|button|-------ground
you want to tap into the section with the stars for the white activation wire on the 2 step. Gray 2 step wire to ground.
That should work
You need to wire it like this
pardon my attempt at ascii wiring diagrams <img border="0" title="" alt="[Wink]" src="gr_images/icons/wink.gif" />
12V---------|T-brake solenoid|----**---|button|-------ground
you want to tap into the section with the stars for the white activation wire on the 2 step. Gray 2 step wire to ground.
That should work
08-08-2002, 06:55 AM
#31
Re: Harlan 2-Step is the **** </font><blockquote><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><hr /><font size="2" face="Verdana, Helvetica, sans-serif">Originally posted by Alonzo:
<strong>How hard is it to hook up?What does it involve?Splicing etc...I have a 98 a4.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">you need to unplug your stock coil pack harnesses. Plug in the 2 step in between the factory plugs you just unhooked. Then make 2 other connections for the activation wires. No factory wire splicing, unless you want to run off the clutch/brake switch in the car.
<strong>How hard is it to hook up?What does it involve?Splicing etc...I have a 98 a4.</strong></font><hr /></blockquote><font size="2" face="Verdana, Helvetica, sans-serif">you need to unplug your stock coil pack harnesses. Plug in the 2 step in between the factory plugs you just unhooked. Then make 2 other connections for the activation wires. No factory wire splicing, unless you want to run off the clutch/brake switch in the car.
