Hey all. I'm starting to toy with the idea of a mild nitrous kit, like a 50-75 shot. I was wondering if I would have to change my plugs, which are platinum 4+. I heard you shouldn't run nitrous with platinum plugs somewhere, but I don't exactly know why. I was just wondering if this was true.
Also, if anyone has any suggestions/ advice about nitrous kits, I would also greatly appreciate that as well. thanks for any help
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2000 automatic gt-
borla cat-back, bassani x-pipe w/ cats, steeda MIL's, k&n fipkit, cobra calipers up front, wolf springs, KYB adjustable shocks, C&L intake plenum, MAC 70mm throttlebody, kenny brown subframes w/ cross brace, plasma booster, SLP 180 degree thermo, frpp 3.73's, superchip custom tune
The reason you don't run platinum plugs with n20 is that platinum plugs retain heat more then your standard copper plug. If you were to run nitrous with a platinum plug, you run the chance of detonation because the plug will preignite the mixture of air and fuel. That's basically it without going into huge detail.
thanks mana. I thought it had to e something concerning the ignition of the Nitrous. that really puts m mind to rest with that issue. If I change the plugs though, anyone have any recommended nitrous kits in the 50-75 shot range?
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2000 automatic gt-
borla cat-back, bassani x-pipe w/ cats, steeda MIL's, k&n fipkit, cobra calipers up front, wolf springs, KYB adjustable shocks, C&L intake plenum, MAC 70mm throttlebody, kenny brown subframes w/ cross brace, plasma booster, SLP 180 degree thermo, frpp 3.73's, superchip custom tune
" 5.0 Mustang and Super Fords" just did an article in June 03' about different nitrous systems and what they offer you might want to check it out. Venom makes a kit that is pretty impressive ifyour worried about safely juicing your 4.6.
" The Venom nitrous kits are interesting in that they operate in "closed loop" mode- as does your factory EFI- monitoring throttle angle, 02 sensors, and so on to control the amount of fuel and nitrous for a safe performance boost." -5.0 MSF-
This kit is a little bit more pricey than some of the other "dry" kits but that's what i'm saving up for right now.
johnny - Definately change your plugs to a non-platinum plug, preferably 1 heat range colder than normal if you are planning on running a 75 shot of juice. This will help decrease the chances of detonation due to a hot plug as Mana described. With such a small shot you will not need to make any further modifications to your vehicle.
I will go out on a limb here and say that the factory motor can easily handle a larger shot if desired. However, the plastic intakes that the GT's are famous for have been known to "fail" or basically blow up when a large shot is applied. I personally have run a 100 shot on my 96GT for over a year now with no problems to report as of yet (knock on wood). I did nothing other than change my plugs to a colder heat range to support this.
The factory feul system should be able to support up to a 125 shot if desired. I would get a custom chip burned while getting my vehicle dyno tuned for this though. At this level it becomes very important to watch your A/F ratio. Another thing you should do is do a few runs with the juice and listen for spark knock. Then after the runs check your plugs to see if they are fouled. If everything looks and sounds fine, you are on your way to having a lot of fun out there on the street.
If I were you I would change my plugs, get a simple kit and limit myself to a 100 shot. Whatever kit you get, make sure that it is for the returnless feul system that your car has though. Also, I would recommend that you at least buy a purge kit and bottle heater as well to go along with your kit. Hope this long message has helped some.
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99 Cobra convertible #302 of4055
*Fixed* September of 99
Bassani o/r x-pipe
Magnaflow catback
C&L 80mm
Pro 5.0 shifter
Running a colder plug like Denso,NGK is a good rule of thumb
when useing Nitrous.You NEVER use a platnium spark plug
when useing ANY Nitrous kit.I would also run good coil packs
and spark plug wires like Accel or MSD to ensure NO problems.
On a stock engine I would use nothing more than a 75 shot.
Anything more PLAY AT YOUR OWN "RISK"! I would only consider
anything more than a 75 shot if you did heads,intake,crank,cam,
and forged rod's and piston's.Than your ready for 100 shot plus.
There is a chance of something bad happening with any power adder at any level. You are just as safe at a 100 shot as you are a 75. I have sprayed multiple stock mod motors at levels Way above a 100 shot - never had any problems.
Ummm, if I'm not mistaken there are no plug wires on that motor except the ones that power the coil that sits on top of each individual plug.
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Sometimes I think that government fits that old-fashioned definition of a baby: An alimentary canal with an appetite at one end and no sense of responsibility at the other.
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Originally posted by TheNitrousEdge Have you ever used nitrous? j/w
There is a chance of something bad happening with any power adder at any level. You are just as safe at a 100 shot as you are a 75. I have sprayed multiple stock mod motors at levels Way above a 100 shot - never had any problems.
Maybe I'm just lucky?
I was just stating good
advice that's all.You are very lucky indeed but,I don't belive you
that you ran over a 100 shot on a stock 4.6L that's very blanket
to me.Anything over a 75 shot on a stock 4.6L NO MATTER what
year your pistons,rods,and rings are in "jeopardy" NO MATTER
what kind of tune you got.Ever heard of "Reliablity"?
Originally posted by BlueStreak03 Ummm, if I'm not mistaken there are no plug wires on that motor except the ones that power the coil that sits on top of each individual plug.
Seriously . The mod motors dont have plug wires ??? I dont know much about them so sorry for the dumb a** question
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Never argue with an idiot. They will bring you down to their level and beat you with experience...
platinum plugs and nitrous 
