tbyrne

iTrader: (15)

This RPM Activated Switch enables you to activate and then deactivate a circuit at adjustable rpm points. This is a great feature for engines using nitrous systems so the nitrous can be turned off just before the high rev limit of the engine. The Switch will provide a ground to activate a circuit and can handle up to 1.5 amps. The rpm levels are easy to adjust with the same plug-in modules used with other MSD rpm controls. It can be used on stock inductive ignitions as well as high performance capacitive discharge controls.

You used to have to send the regular switch into MSD to be modified for use with the LS1 motor. We have taken care of this step so the switch will be ready for installation when you receive it. The modified version is $129.99. You can save $50. if you purchase this along with any NOS or Nitrous Express kit. Just note this offer when you place your order.

Tom

muscleSS00

is it hard to wire up

slow

iTrader: (7)

4 wires, ground out switched, ground, power, and tach.

Very easy install. and great insurance.

Ryan.

BB

iTrader: (7)

If it is a ground switch where do you wire it in?

slow

iTrader: (7)

they are normally wired at the end of the low current control loop.

+12----arm-----RELAY COIL------FPSS-----MSD..ground

ggr12

so whats the diff with this and the normal MSD switch? I have one and it doesnt seem to cause any problems.

96BlackWS6

Yeah one on my buddy's 99 Z would no give a ground, Bad switch or does he need thisw one you are talking about. I know people who have them and have no prob out of them at all. Hell we did though cause I rewired the car 3 times cause the damn thing wouldn't work so finally we took it off and played launch the MSD in from of a speeding automobile.

Chicago Z06

the Ramcharger Timing computer solves all these issues and is VERY simple to connect. it has worked flawless for me for over a year and lots of bottles.

Wes

stealth

Isn't this the same MSD RPM window switch that I just bought from A-tech for $80, which allows me to set the activation rpm at WOT (say, 3200 rpm) and the deactivation rpm at the just below the rev limiter (say, 6200 rpm)?

theblur98ss

iTrader: (71)

That's what I was wondering. That's how my mallory works and I thought they were all the same.

muscleSS00

ttt

slow

iTrader: (7)

its similar, but these are made/modified for the LS1's 5 volt tach signal.

where normal ones are for a standard 12 volt.

most people have no problem with the standard one, but some do.

If you can buy the one MADE for your car, why risk it? Worth buying the right part the first time.

Ryan.