radiopat Posted June 19, 2003 Report Posted June 19, 2003 Hello. I'm new to this board and so far it's great! Just a couple of questions. I recently purchased an '88 Grand Prix 2.8L for a second car. I need your advice on spark plug and wire replacement. Should I stick with original AC parts or would you recommend something better. Also, I was told by a friend that I'm supposed to use some kind of spark plug compound when installing new plugs for that particular engine. Please advise and many thanks for your service. Quote
Guest RedCutlassSL Posted June 19, 2003 Report Posted June 19, 2003 Use AC Delco. He might have been referring to that grease you apply to the wire boots, cuz they can be bitches to remove Quote
Redfox340 Posted June 19, 2003 Report Posted June 19, 2003 Welcome aboard! hope you find some useful information on your car. Ok, plugs I would highly recommend staying with the AC Delco Rapidfires. They're designed for the ignition systems that the W-Bodies (and the rest of GM) have. As for wires, you can increase wire diameter for less resistance, but I haven't ran those myself, so I can't add much. As for plug compound, it's recommended to you di-electric grease when installing plugs; especially in humid climates. Hope this helps and again, make yourself at home! - Erik Quote
Robby1870 Posted June 19, 2003 Report Posted June 19, 2003 Welcome to the board!! You'll find everything you'll need to know about your GP here. I will second everything that has been said. Yeah, I need to go with Rapidfires. I think mine are Champions now (I changed them when I got the car, 3 years ago, and dont remember), and I dont think they are hot enough. Im still, with clean EGR, PCV, Injectors, everything, running a little rich around 2K rpms. Anyway, go with Delco, you cant go wrong Robby Quote
Slade901 Posted June 19, 2003 Report Posted June 19, 2003 Just like what other folks said here, use a di-electric grease on the tip of the spark plug where the spark plug wires comes in contact with the spark plug. Also put di-electric grease on the end of the spark plug wires that connects to the coil. Do not use an anti-seizing compound on the thread of the spark plug because that would cause you to over tighten the spark plug past its torque specs and you could strip the threads. If you insists on using an anti-seizing compound then make sure you torque the spark plug a couple of of (ft lbs or inch lbs) less than what the specs says. Quote
radiopat Posted June 22, 2003 Author Report Posted June 22, 2003 Thanks for all of your responses. Quote
brian89gp Posted June 22, 2003 Report Posted June 22, 2003 Personally I don't like Rapid Fires, they cost twice as much and the center electrode gets eaten away. I'd use the regular AC Delco replacement or a NGK plug and can tell no difference between the 3 sets. Quote
GrandPrix34 Posted June 22, 2003 Report Posted June 22, 2003 im using the NGK V-power spark plugs...the old plugs were the AC Delco ones and from the looks of it they did a pretty good job...carbon buildup and gap was evident but for no plug change in i dont know how long, the plugs still looked pretty fair to me Quote
cutlassdude96 Posted June 23, 2003 Report Posted June 23, 2003 \ said: Personally I don't like Rapid Fires, they cost twice as much and the center electrode gets eaten away. I'd use the regular AC Delco replacement or a NGK plug and can tell no difference between the 3 sets. I paid $3.99 each for the Rapid Fires, they were cheaper then the platum plugs, but I paid for a box of 8. Quote
brian89gp Posted June 23, 2003 Report Posted June 23, 2003 Regular AC Delco plugs are like $1.30 and NGK V-power are like $1.50. Quote
Baddflash Posted June 25, 2003 Report Posted June 25, 2003 Stick with AC-delco and if you have a lot of miles on the engine the Rapid fires will help but do cost more. Quote
KrazyCutlass1995 Posted June 27, 2003 Report Posted June 27, 2003 yep , ac delco ... DO NOT GET BOCSH ... that cars ignition will eat them Quote
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.