What are the best spark plugs to use on a 1994 rt/10? what intervals should I have these things changed out?
Spark plugs
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Mike Brunton
Enthusiast
I changed out my plugs when my '98 GTS hit 20,000 miles, and it made a HUGE difference. The plugs on the right side of the motor were pretty burned up.
I currently have a replacement set of stock plugs in there, but I want to switch to the NGK ones (I think the P/N is FR-5). They are a bit colder than stock and are supposed to help with detonation.
I currently have a replacement set of stock plugs in there, but I want to switch to the NGK ones (I think the P/N is FR-5). They are a bit colder than stock and are supposed to help with detonation.
Doug Supercharged Vipers
Enthusiast
Hi Mike and Adam!
The stock spark plug number for your car Adam is Champion RC12LYC.
The stock plugs are a projected nose plug for a lean-burn application. If you do have a problem with detonation and you suspect it may be plugs, try first using a less projected nose plug, rather than a lower temp range plug. Colder plugs MAY reduce detonation but may cause another problem for street cars. The temperature rating on the plug dictates the plugs ability to keep itself clean. If the plug is too cold, carbon builds around the edge of the plug and causes it to misfire. Soon after, the plug fails to fire and then arcing may occur at the wires.
A better scenario would be to find a spark plug with a LESS projected nose and a thicker ground strap that can absorb the heat. If you view a RACE plug, you'll notice the projection is almost nil. Although this would NOT be the best plug for a street application.
Best Regards,
Doug Levin
The stock spark plug number for your car Adam is Champion RC12LYC.
The stock plugs are a projected nose plug for a lean-burn application. If you do have a problem with detonation and you suspect it may be plugs, try first using a less projected nose plug, rather than a lower temp range plug. Colder plugs MAY reduce detonation but may cause another problem for street cars. The temperature rating on the plug dictates the plugs ability to keep itself clean. If the plug is too cold, carbon builds around the edge of the plug and causes it to misfire. Soon after, the plug fails to fire and then arcing may occur at the wires.
A better scenario would be to find a spark plug with a LESS projected nose and a thicker ground strap that can absorb the heat. If you view a RACE plug, you'll notice the projection is almost nil. Although this would NOT be the best plug for a street application.
Best Regards,
Doug Levin
Chuck 97 GTS
Enthusiast
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Doug Supercharged Vipers:
Not good for the electronics
<HR></BLOCKQUOTE>
Anybody care to elaborate on this?
Not good for the electronics
You must be registered for see images
. <HR></BLOCKQUOTE>
Anybody care to elaborate on this?
You must be registered for see images
I have regular Bosch Platinums in my GTS right now and they SEEM ok but I don't want any trouble.bad viper
Enthusiast
NEVER USE PLATINUM in nitrous applications!!!!!!!!!!!!!!!!
Ron
Enthusiast
<FONT face="Comic Sans MS">Now I'm curious! What's the deal with Platinum? Why does it act any different (regarding the electronics) then any other material?
I assume the nitrous issue is a chemical reaction, correct?
Thanks </FONT f>
I assume the nitrous issue is a chemical reaction, correct?
Thanks </FONT f>
Ron
Enthusiast
<FONT face="Comic Sans MS">Does anyone have any experience or opinion on the Bosch Platinum +4 sparkplugs, part number 4428? These are the plugs with 4 side ground electrodes.
Thanks</FONT f>
Thanks</FONT f>
Doug Supercharged Vipers
Enthusiast
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Ron:
<FONT face="Comic Sans MS">Does anyone have any experience or opinion on the Bosch Platinum +4 sparkplugs, part number 4428? These are the plugs with 4 side ground electrodes.
Thanks</FONT f>
<HR></BLOCKQUOTE>
Hi Ron --
Never use platinum plugs in your Viper - Not good for the electronics
Doug
<FONT face="Comic Sans MS">Does anyone have any experience or opinion on the Bosch Platinum +4 sparkplugs, part number 4428? These are the plugs with 4 side ground electrodes.
Thanks</FONT f>
<HR></BLOCKQUOTE>
Hi Ron --
Never use platinum plugs in your Viper - Not good for the electronics
You must be registered for see images
. Doug
Supercharged Vipermad
Enthusiast
I'm not running nitrous (any more, at least until we dial in the new motor), so I have a different question: What plug would you guys suggest for a Gen. 1 (or in this case Gen. X) 550 cu in stroker with 10.2:1 compression and runs REALLY rich (I sometimes get raw fuel coming out and usually have flames on deceleration)? Idle is about 400 rpm's, so I tend to faul plugs all the time trying to run my car on the street. I could change plugs daily and still have fauled plugs.
I'd be curious what you guys would suggest for plugs once I go back to nitrous too...We're thinking about a two stage 300 shot once we get the runners tuned for max power w/o the N2O
I'd be curious what you guys would suggest for plugs once I go back to nitrous too...We're thinking about a two stage 300 shot once we get the runners tuned for max power w/o the N2O
Doug Supercharged Vipers
Enthusiast
>>What plug would you guys suggest for a Gen. 1 (or in this case Gen. X) 550 cu in stroker with 10.2:1 compression and runs REALLY rich (I sometimes get raw fuel coming out and usually have flames on deceleration)? Idle is about 400 rpm's, so I tend to faul plugs all the time trying to run my car on the street.>>
Hi Jeff,
What spark plugs are you using now?
Sounds in part as if your experiencing one of the problems on modified Gen 1 (OBD 1) computer cars. The computer isn't very fast (or as smart) to communicate and compensate fuel parameters on decel mode. That's why the car gurgles (more fuel than needed) on decel, more than it's predecessor the Gen 2. The Gen 2 cars are much quicker/smarter adjusting parameters telling the ECU what is going on.
Regards,
Doug
Hi Jeff,
What spark plugs are you using now?
Sounds in part as if your experiencing one of the problems on modified Gen 1 (OBD 1) computer cars. The computer isn't very fast (or as smart) to communicate and compensate fuel parameters on decel mode. That's why the car gurgles (more fuel than needed) on decel, more than it's predecessor the Gen 2. The Gen 2 cars are much quicker/smarter adjusting parameters telling the ECU what is going on.
Regards,
Doug
You must be registered for see images
Supercharged Vipermad
Enthusiast
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Doug Supercharged Vipers:
>>Sounds in part as if your experiencing one of the problems on modified Gen 1 (OBD 1) computer cars. The computer isn't very fast (or as smart) to communicate and compensate fuel parameters on decel mode. That's why the car gurgles (more fuel than needed) on decel, more than it's predecessor the Gen 2. The Gen 2 cars are much quicker/smarter adjusting parameters telling the ECU what is going on.
<HR></BLOCKQUOTE>
Doug,
Man, I wish someone would build a computer upgrade for us Gen 1 owners!
>>Sounds in part as if your experiencing one of the problems on modified Gen 1 (OBD 1) computer cars. The computer isn't very fast (or as smart) to communicate and compensate fuel parameters on decel mode. That's why the car gurgles (more fuel than needed) on decel, more than it's predecessor the Gen 2. The Gen 2 cars are much quicker/smarter adjusting parameters telling the ECU what is going on.
<HR></BLOCKQUOTE>
Doug,
Man, I wish someone would build a computer upgrade for us Gen 1 owners!
