adding nitrous got a spark plug question

1badzq8 · 03-10-2008, 09:09 PM

i'm puttin a 75 shot of nitrous on my truck, my question is do i need to put a colder heat range plug? if so what is the part number?

i have the 4.3 v6 in case it matters

The Blown Blazer · 03-10-2008, 10:59 PM

I'd recommend some Autolite XP104 spark plugs. They have a slightly smaller gap than stock and they are also 1 heat range colder than stock. If you don't want to spend the money for the XP, you can get a regular Autolite 104 and it'd work just fine.

1badzq8 · 03-10-2008, 11:37 PM

thanks a lot man

1/4milecrazy · 03-10-2008, 11:52 PM

NGK TR6 also works well, was never a fan of putting autolites in a GM product

The Blown Blazer · 03-11-2008, 05:18 PM

Quote: Originally Posted by 1/4milecrazy

NGK TR6 also works well, was never a fan of putting autolites in a GM product

Except for the fact Autolite has been the manufacturer of AC Delco plugs for a few years, and those Autolite made AC Delcos are OE in GM products.

sebast19 · 03-13-2008, 02:16 PM

NGK TR7IX. Is the way to go with 75 100 125 on a V-6 4.3. 150 175 would be TR8IX and 200 225 250 are special number NGK 9 and 10 range.(Very cold of course)
Good luck

Sébast

98 SS · 03-14-2008, 08:22 PM

^^^^^^^^^^^That guy would know

lol

sonomanator · 06-13-2008, 02:44 AM

i know this is kinda old but what if you have just basic acdelco plugs and what else should i worry about.

Danny_SS · 06-13-2008, 09:46 AM

what do you guys typically run for retard for the 75hp-125hp shots?

j_gor78 · 06-15-2008, 11:58 AM

No retard of timing up to 100shot...I would say about 3 degrees for 125...if you have some balls you could even advance timing upto 100shot

Danny_SS · 06-16-2008, 01:24 PM

ok thanks, wow, 0 degrees?
Im running 1 step colder plugs NGK UR6 vs the stock UR5's and 4 degree retard on my 75 hp shot. I still need to do more testing and tuning so I will back off on the timing a bit and see how it runs. By the way my truck is a 94SS 4.3 CPI engine.

1fast4by · 06-16-2008, 06:56 PM

Mine are NGK TR6s gaped at .036. Havent missed a beat.

j_gor78 · 06-17-2008, 05:12 AM

Quote: Originally Posted by Danny_SS

ok thanks, wow, 0 degrees?
Im running 1 step colder plugs NGK UR6 vs the stock UR5's and 4 degree retard on my 75 hp shot. I still need to do more testing and tuning so I will back off on the timing a bit and see how it runs. By the way my truck is a 94SS 4.3 CPI engine.

I am not too familiar with cpi..but I run 10 degrees advanced on my n/a tune...so at 0 degrees from stock I am actually running my n2o tune 10 degrees retarded..

same theory would work for you...whatever your engine is happy at n/a just retard 3 degrees for a 75 shot.

Danny_SS · 06-17-2008, 11:16 AM

ok so you are running retard. Im running 4 degrees right now. I will bring the retard down slightly once I am able to test and tune with more time. Last time I ran, the nitrous was shutting off since the fuel pressure was dropping under 47psi. I have a Walbro 255 pump that I need to install before I can do any more testing. Once I have that, then I'll bump up the jets to the 100-125hp shots once I get the 75hp just right which is the min hp level for my direct port setup.

03-10-2008, 09:09 PM	#1
1badzq8 SPRAYINLOW Join Date: Jan 2007 Posts: 1,554 Location: MISSISSIPPI User is: OffLine	adding nitrous got a spark plug question i'm puttin a 75 shot of nitrous on my truck, my question is do i need to put a colder heat range plug? if so what is the part number? i have the 4.3 v6 in case it matters
	[Reply w/Quote]

03-10-2008, 10:59 PM	#2
The Blown Blazer Registered User Join Date: Aug 2004 Posts: 2,179 Location: User is: OffLine	Re: adding nitrous got a spark plug question I'd recommend some Autolite XP104 spark plugs. They have a slightly smaller gap than stock and they are also 1 heat range colder than stock. If you don't want to spend the money for the XP, you can get a regular Autolite 104 and it'd work just fine.
	[Reply w/Quote]

03-10-2008, 11:37 PM	#3
1badzq8 SPRAYINLOW Join Date: Jan 2007 Posts: 1,554 Location: MISSISSIPPI User is: OffLine	Re: adding nitrous got a spark plug question thanks a lot man
	[Reply w/Quote]

03-10-2008, 11:52 PM	#4
1/4milecrazy SK NJ chapter VP Age: 32 Join Date: Feb 2004 Posts: 2,072 Location: On the ground in NJ User is: OffLine	Re: adding nitrous got a spark plug question NGK TR6 also works well, was never a fan of putting autolites in a GM product
	[Reply w/Quote]

03-11-2008, 05:18 PM	#5
The Blown Blazer Registered User Join Date: Aug 2004 Posts: 2,179 Location: User is: OffLine	Re: adding nitrous got a spark plug question Quote: Originally Posted by 1/4milecrazy NGK TR6 also works well, was never a fan of putting autolites in a GM product Except for the fact Autolite has been the manufacturer of AC Delco plugs for a few years, and those Autolite made AC Delcos are OE in GM products.
	[Reply w/Quote]


S10Forum is the premier S-Series Site on the internet. Registered Users do not see the above ads. Please Register - It's Free!

03-13-2008, 02:16 PM	#6
sebast19 Life Start @ 200 shots Age: 32 Join Date: Oct 2003 Posts: 319 Location: Québec Canada User is: OffLine	Re: adding nitrous got a spark plug question NGK TR7IX. Is the way to go with 75 100 125 on a V-6 4.3. 150 175 would be TR8IX and 200 225 250 are special number NGK 9 and 10 range.(Very cold of course) Good luck Sébast
	[Reply w/Quote]

03-14-2008, 08:22 PM	#7
98 SS I call her: NIGHTMARE Join Date: Apr 2004 Posts: 1,743 Location: The TPK User is: OffLine	Re: adding nitrous got a spark plug question ^^^^^^^^^^^That guy would know lol
	[Reply w/Quote]

06-13-2008, 02:44 AM	#8
sonomanator -84 point(s) total Age: 19 Join Date: Jan 2008 Posts: 1,836 Location: User is: OffLine	Re: adding nitrous got a spark plug question i know this is kinda old but what if you have just basic acdelco plugs and what else should i worry about.
	[Reply w/Quote]

06-13-2008, 09:46 AM	#9
Danny_SS Registered User Join Date: Jul 2006 Posts: 127 Location: User is: OffLine	Re: adding nitrous got a spark plug question what do you guys typically run for retard for the 75hp-125hp shots?
	[Reply w/Quote]

06-15-2008, 11:58 AM	#10
j_gor78 I Am Canadian! Age: 30 Join Date: Aug 2002 Posts: 1,183 Location: Calgary, Ab, Canada User is: OffLine	Re: adding nitrous got a spark plug question No retard of timing up to 100shot...I would say about 3 degrees for 125...if you have some balls you could even advance timing upto 100shot
	[Reply w/Quote]

06-16-2008, 01:24 PM	#11
Danny_SS Registered User Join Date: Jul 2006 Posts: 127 Location: User is: OffLine	Re: adding nitrous got a spark plug question ok thanks, wow, 0 degrees? Im running 1 step colder plugs NGK UR6 vs the stock UR5's and 4 degree retard on my 75 hp shot. I still need to do more testing and tuning so I will back off on the timing a bit and see how it runs. By the way my truck is a 94SS 4.3 CPI engine.
	[Reply w/Quote]

06-16-2008, 06:56 PM	#12
1fast4by ''Draggin'' a 4x4 Age: 25 Join Date: Mar 2004 Posts: 8,502 Location: Green Hills/Nashville User is: Online	Re: adding nitrous got a spark plug question Mine are NGK TR6s gaped at .036. Havent missed a beat.
	[Reply w/Quote]

06-17-2008, 05:12 AM	#13
j_gor78 I Am Canadian! Age: 30 Join Date: Aug 2002 Posts: 1,183 Location: Calgary, Ab, Canada User is: OffLine	Re: adding nitrous got a spark plug question Quote: Originally Posted by Danny_SS ok thanks, wow, 0 degrees? Im running 1 step colder plugs NGK UR6 vs the stock UR5's and 4 degree retard on my 75 hp shot. I still need to do more testing and tuning so I will back off on the timing a bit and see how it runs. By the way my truck is a 94SS 4.3 CPI engine. I am not too familiar with cpi..but I run 10 degrees advanced on my n/a tune...so at 0 degrees from stock I am actually running my n2o tune 10 degrees retarded.. same theory would work for you...whatever your engine is happy at n/a just retard 3 degrees for a 75 shot.
	[Reply w/Quote]

06-17-2008, 11:16 AM	#14
Danny_SS Registered User Join Date: Jul 2006 Posts: 127 Location: User is: OffLine	Re: adding nitrous got a spark plug question ok so you are running retard. Im running 4 degrees right now. I will bring the retard down slightly once I am able to test and tune with more time. Last time I ran, the nitrous was shutting off since the fuel pressure was dropping under 47psi. I have a Walbro 255 pump that I need to install before I can do any more testing. Once I have that, then I'll bump up the jets to the 100-125hp shots once I get the 75hp just right which is the min hp level for my direct port setup.
	[Reply w/Quote]

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)