Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - Need help with a couple things ign/transBrake/delay box/line lock type stuff
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Old 09-12-2012, 01:05 AM
Richardoville Richardoville is offline
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You can find wiring instructions online for most of your stuff. MSD has complete instructions on their website - you just need the model of box. . Hurst for the linelock and Holley for the Fuel Pump...if you really need 'em. The 30 Amp relay sounds correct for most pumps just don't forget to fuse the hot wire to the relay. I agree with Monster76 and install another switch to power the linelock and trans brake since you seldom use both at the same time. Run a seperate switch / wire to the control terminal of the pump relay.

The transbrake locks the transmission into two gears at once, usually reverse, when the button is pressed. This locks the trans up so you can floor the pedal and launch as hard as your engine and converter combination allows. It is dangerous to have the trans brake electrically on when driving on the street (you called it a pro-street) because you or a passenger could hit the button, locking up the trans and the rear tires, causing an accident. Put in a seperate switch to arm the TB & LL. You shouldn't need a relay for either the linelock or the transbrake just wire up some good 14 guage from a fused source that you can shut off. If it pops a 15 amp fuse, you have a problem in the TB or LL.

The delay box is just that. It delays the time when you release the button to actually releasing the trans brake solenoid. This is done by keeping power on to the trans brake solenoid for an amount of time you dial into the box. Usually a fraction of a second is all that's needed. You probably don't need it until you get into real serious but then, you may not need the trans brake either, again, depending on your combination.

Putting the linelock on the rear brake circuit, plumbed "backwards" allows you to control the pressure applied to the front brakes on the burnout...allowing you to control the forward speed of the vehicle for really long burnouts. The front brake circuit is where the linelock belongs if you're serious about your racing. The way it is plumbed may eventually lead to the linelock failing so be awarel.

The MSD is the only way to go if you're going to run nitrous. Just learn how to tune the thing without the NOS first! For any nitrous, I'd still recommend running a seperate pump and fuel line with pressure switches to keep you from blowing it up!

Keep reading and learning. If you hear the same thing at least twice, it's usually right. Have Fun.
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