Thread: New to N20 need advice.

you're the men!

i would rec using a relay to control the solinoids. also run + power through the wot switch. this way if switch comes up pluged or wire is some how grounded it will blow fuse and not activate nos.

if nos relay is groung controled it will activate any time wire touches any part of the engine. like if i unplugs its self.

idk how wirring savey you are but im gone try and explain what i mean

find ign power source run power to 10a fuse then to arming switch mounted on dash.
next run power from arming switch to term 87 of relay and to comm term on wot switch

then run wire from norm open term of wot switch to term 85 on relay

then run 1 wire from each solinoid to term 30 on relay

run other 2 wires on solinoids to ground

run wire fron tern 86 on relay to ground

with this circut any time wire from wot switch comes un pluge or is grounded it will blow the fuse and shut down nos.

i dont know why but on all 3 of my nos cars i have had probs with wot switches and wirring . it relay sux when wot switch terms snap off from vibration and ground on engine. when i had a ground contoled nos relay this costed me a maf on my b14 from back fire . when nos activated at idle

I'll started today I'll post pictures of progress, so you'll let me know what I'm doing wrong, lol.
Also is NGK Iridium 7 grade good for NOS?
thats what I got^^^.

if 7 is the heat range then yes

yes 7 heat range.
how you mount your WOT switch?
I mounted mine from the nut on the Cruise Control cable but I dont know it dont seem safe to me, I'll post a picture shortly.

i mounted mine on a tb bolt and made an s bent to hit the throtle linkage mount it any were that it wont interfere with throtle cable and has the abillity to be touched at 3/4 throtle

so you can adjust the hit

So, finally I finished up installing it today and went for a spin, It felt like 7psi on a t28, pretty good feeling and no check engine light. My only concern is after the runs I checked the spark plugs and they had very little tiny spots or scuffs???? is that a sign of detonation???? and also like when I had the T28 the engine temperature seem a bit high on the engine bay..
I set the timing at 15* so maybe I'll have to retard to 13*
My camara run out of batteries so I'll have pictures some other day of the setup and spark plugs after a run.

Yep, you have some detonation

what could be the cause:
-timing?
-spark plug gap is set @ .034
-I tested the fuel first soleniod first with the NOS bottle closed, when I hit the wot switch It would misfire but it did not smoke at all just misfire and bugged like cutting on and off, so I figure the fuel is being injected, also with the engine off I activated the switch, again with the NOS bottle closed and fuel dripped from the silicone couplers.
-I placed the nozle about 5-6 inches from the TB
-I purge it until full, not intermitent spray came out.

the fuel jet is to small what are the jet #s?