Nitrous Spark plugs

skiwesser · 06-01-2005, 04:50 PM

No, I was just wondering if you'd go even colder on the plugs or just crank the timing way down.
I do plan to spray my rebuilt 306 with 175-185, with plenty of fuel of course.Forged pistons, stock everything else(crank & rods).
What do you think?
Should I get a main girdle? At least studs I figure.

06-01-2005, 08:00 PM

I'd stick with a 150 shot. That'll take well over a second off of your quarter mile time with a big enough fuel pump & a properly set bottle warmer. Anything over that seems like you're pushin it in my opinion.

Fat0eknee · 06-01-2005, 08:53 PM

150 is safe but its pushin it - stock rods are the weakest link

mr49south · 06-02-2005, 01:41 AM

i run autolite 3922 plugs with timing on 14 works very well

06-02-2005, 11:49 AM

Quote:

Originally Posted by mr49south

i run autolite 3922 plugs with timing on 14 works very well

Timing on 14 with the nitrous?! How big of a shot? Unless you're running some high octane fuel, that sounds pretty scary to me...

mr49south · 06-02-2005, 01:28 PM

i am shooting a 150 shot on 93 pump gas .works very well.

06-02-2005, 02:05 PM

So you're plugs look ok? No detonation I guess? That's amazing for a 150 shot. All we have here in So.Cal. is 91 octane. I've yet to experiment with race fuel & more timing. My 150 shot on 91 octane with my timing on 9 is plenty for me. I don't want to damage any of my motor internals. That's great that you can pull that off though. What are your 1/4 mile times mr49south?

06-01-2005, 04:50 PM	#1
skiwesser Registered Member Join Date: Sep 2000 Location: rock hill,S.C. 29730 Posts: 420	Re: Nitrous Spark plugs No, I was just wondering if you'd go even colder on the plugs or just crank the timing way down. I do plan to spray my rebuilt 306 with 175-185, with plenty of fuel of course.Forged pistons, stock everything else(crank & rods). What do you think? Should I get a main girdle? At least studs I figure. __________________ 88 GT: subs,pullies, 1 3/4 longtubes, flowmasters, AFR 165's,T,F #1 cam,Thyphoon intake, 24# inj., 73mm C&L,65mmT.B., 190LPH pump, Eagle sir rods, forged pistons in a newly rebuilt 306. DYNO TUNED TO 300.97 RWHP 337RWTQ

06-01-2005, 08:00 PM	#2
Simi Stang Guest Posts: n/a	Re: Nitrous Spark plugs I'd stick with a 150 shot. That'll take well over a second off of your quarter mile time with a big enough fuel pump & a properly set bottle warmer. Anything over that seems like you're pushin it in my opinion.

06-01-2005, 08:53 PM	#3
Fat0eknee I'm slow ...I know. Join Date: Dec 2003 Location: houston Posts: 518	Re: Nitrous Spark plugs 150 is safe but its pushin it - stock rods are the weakest link __________________ When you do things right, people won't be sure you've done anything at all...

06-02-2005, 01:41 AM	#4
mr49south Registered Member Join Date: Apr 2005 Posts: 37	Re: Nitrous Spark plugs i run autolite 3922 plugs with timing on 14 works very well __________________ 89 LX TFS STREET KILLER stock block,twisted wedge heads, eldo intake, 24lb inj., 75tb, 73 mass air, comp cam, 4.10 gear, lakewood 90/10,50/50, 150 shot of gas.

06-02-2005, 01:28 PM	#6
mr49south Registered Member Join Date: Apr 2005 Posts: 37	Re: Nitrous Spark plugs i am shooting a 150 shot on 93 pump gas .works very well. __________________ 89 LX TFS STREET KILLER stock block,twisted wedge heads, eldo intake, 24lb inj., 75tb, 73 mass air, comp cam, 4.10 gear, lakewood 90/10,50/50, 150 shot of gas.

06-02-2005, 02:05 PM	#7
Simi Stang Guest Posts: n/a	Re: Nitrous Spark plugs So you're plugs look ok? No detonation I guess? That's amazing for a 150 shot. All we have here in So.Cal. is 91 octane. I've yet to experiment with race fuel & more timing. My 150 shot on 91 octane with my timing on 9 is plenty for me. I don't want to damage any of my motor internals. That's great that you can pull that off though. What are your 1/4 mile times mr49south?

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