Nitrous info needed

audio1der · May 11, 2016

I want to wire a 'window switch' to turn the Nitrous shot on at 3200 rpm and off at about 5700 for the shift, but don't know where to tap the switch into so that it picks up an rpm signal on a 2014 w/5.7 and 8spd.
-Where can I pick up a tach signal for the switch?
-What's the part number for a colder plug?

Hemi450hp · May 11, 2016

The 8sp trucks respond better when spraying through the shift. I would skip the window switch, and just start on a smaller shot (50 shot). Then work your way up from there until the tires cant hold.

sicmadek · May 11, 2016

audio1der said:
I want to wire a 'window switch' to turn the Nitrous shot on at 3200 rpm and off at about 5700 for the shift, but don't know where to tap the switch into so that it picks up an rpm signal on a 2014 w/5.7 and 8spd.
-Where can I pick up a tach signal for the switch?
-What's the part number for a colder plug?

Thad knows where to tap into for the signal.

charonblk07 · May 11, 2016

audio1der said:
I want to wire a 'window switch' to turn the Nitrous shot on at 3200 rpm and off at about 5700 for the shift, but don't know where to tap the switch into so that it picks up an rpm signal on a 2014 w/5.7 and 8spd.
-Where can I pick up a tach signal for the switch?
-What's the part number for a colder plug?

Tap the #1 injector wire, don't use the coil wire like some people have done, there's an off-burn pulse as well and that messes up the window switch. Use the Denso 3381 plugs.

audio1der · May 11, 2016

Thanks, guys!

BigSloth · May 12, 2016

charonblk07 said:
Tap the #1 injector wire, don't use the coil wire like some people have done, there's an off-burn pulse as well and that messes up the window switch. Use the Denso 3381 plugs.

I have my NOS mini progressive controller picking up its tach signal from the #6 coil and it is a dead on accurate match to my tach...

Wild one · Jun 9, 2016

BigSloth said:
I have my NOS mini progressive controller picking up its tach signal from the #6 coil and it is a dead on accurate match to my tach...

What plugs are you running in your truck.I have a 14 that I want to hit with a 100 shot,but having a tough time tracking down a colder plug.

Hemi450hp · Jun 9, 2016

Denso 3381 are 1 step colder.

Wild one · Jun 9, 2016

Thanks Matt,i wasn't sure they were compatiable with the 14's and the newer coil set-up on them.

charonblk07 · Jun 10, 2016

Wild one said:
Thanks Matt,i wasn't sure they were compatiable with the 14's and the newer coil set-up on them.

It's the same plugs I'm running everyday Rick; dirt cheap compared to the 4 stage colder plugs that I run with the blower/nitrous.

Wild one · Jun 10, 2016

charonblk07 said:
It's the same plugs I'm running everyday Rick; dirt cheap compared to the 4 stage colder plugs that I run with the blower/nitrous.

You got that right Kurtis,they were just over $7.00 a plug at Bumper to Bumper.I wasn't to sure if they'd be the right plugs for a 14,with the coil change they did on the 13's and newer trucks,but i'm gonna throw them in and give them a whirl.

BigSloth · Jun 11, 2016

Carquest has the 3381s for under 3 dollars a plug.

charonblk07 · Jun 11, 2016

BigSloth said:
Carquest has the 3381s for under 3 dollars a plug.

We're in Canada, cheapest plugs you can find anywhere are $5 at least so $7 is a deal.

Wild one · Jun 12, 2016

What are you guys gapping your plugs at.Back in the day of carbs and single coils 0.028" was the ideal gap to prevent blowing the spark out,but with the new coil on plug set-ups is 0.028" still the gap to shoot for or would 0.032" be a better gap.

Wild one · Jun 12, 2016

Found this article,looks like i'll set the gaps at 0.032" and see how it likes it.

4 Ways to Optimize Your Nitrous System - OnAllCylinders

charonblk07 · Jun 12, 2016

0.30" is the norm for the Densos with up to a 150 shot. I run mine at .025" with the blower but was running my NGKs at .030" with the nitrous only.

BigSloth · Jun 12, 2016

charonblk07 said:
We're in Canada, cheapest plugs you can find anywhere are $5 at least so $7 is a deal.

Oh wow. It's surprising that yall can do any racing at all with 7 dollar plugs and 100 dollar nitrous bottle fills.

Nitrous info needed

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