spark plugs?
04-04-2006, 10:46 PM
#2
That's bordeline on not needing a change. If you have any pinging or signs of detonation on your plugs - you are checking all 8 frequently, right? - then you could drop down 1 or 2 heat ranges.
Jim
Jim
04-05-2006, 10:16 PM
#4
I'm very interested in this info as well, but my car is not FI. I just recently hit the 62K mark and I was wondering if I had to change the plugs. Ever since I got the car (17k mi) I always did my own work on the car. I never even did the check up at the 30k mark, is that bad?
04-06-2006, 05:19 PM
#6
I checked the plugs after every tuning session when I was first getting my car right. Then I had the distributor slip and the plugs got fouled, so I changed them. Now I check one on each bank after every drive. Your setup shouldn't need new plugs very often, if they are looking right when you check them.
I'll probably changed mine yearly as part of a major maintenance. I just use the Champion Copper plugs, so they are like $1.50 each. No need for platinum or iridium - they are for long service lives.
SSmokin99, 60K is a good time to change them and any other consumable parts. I think the factory 30K checkup is BS, but you have to do them (not necessarily at the dealer$$$) to keep the warranty intact. As a hot rodder, you check all the fluids frequently anyways, right?
Jim
I'll probably changed mine yearly as part of a major maintenance. I just use the Champion Copper plugs, so they are like $1.50 each. No need for platinum or iridium - they are for long service lives.
SSmokin99, 60K is a good time to change them and any other consumable parts. I think the factory 30K checkup is BS, but you have to do them (not necessarily at the dealer$$$) to keep the warranty intact. As a hot rodder, you check all the fluids frequently anyways, right?
Jim
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04-06-2006, 11:51 PM
#9
Are they colder than stock? How much boost, cam and compression ratio?
Nothing inherently wrong with the platinums. I few people I respect suggested or wrote about Champion Copper, gap between .025 and .035 depending on boost and ignition, and 1-3 ranges cooler, depending your car - climate when you drive, boost, etc. I went to Champion RC9YC - three ranges cooler because the parts store stocked the 9 and the 12 (stock heatrange). No problems, but I'm in a mild NorCal climate (45-100) and rarely drive the hotrod when its under 50. No fouling problems. About 7.5# of boost on a 383 with FMIC and MSD6A ignition. No pinging at all on 91.
Jim
Nothing inherently wrong with the platinums. I few people I respect suggested or wrote about Champion Copper, gap between .025 and .035 depending on boost and ignition, and 1-3 ranges cooler, depending your car - climate when you drive, boost, etc. I went to Champion RC9YC - three ranges cooler because the parts store stocked the 9 and the 12 (stock heatrange). No problems, but I'm in a mild NorCal climate (45-100) and rarely drive the hotrod when its under 50. No fouling problems. About 7.5# of boost on a 383 with FMIC and MSD6A ignition. No pinging at all on 91.
Jim
04-07-2006, 01:11 AM
#10
Originally Posted by DeltaT
I checked the plugs after every tuning session when I was first getting my car right. Then I had the distributor slip and the plugs got fouled, so I changed them. Now I check one on each bank after every drive. Your setup shouldn't need new plugs very often, if they are looking right when you check them.
I'll probably changed mine yearly as part of a major maintenance. I just use the Champion Copper plugs, so they are like $1.50 each. No need for platinum or iridium - they are for long service lives.
SSmokin99, 60K is a good time to change them and any other consumable parts. I think the factory 30K checkup is BS, but you have to do them (not necessarily at the dealer$$$) to keep the warranty intact. As a hot rodder, you check all the fluids frequently anyways, right?
Jim
I'll probably changed mine yearly as part of a major maintenance. I just use the Champion Copper plugs, so they are like $1.50 each. No need for platinum or iridium - they are for long service lives.
SSmokin99, 60K is a good time to change them and any other consumable parts. I think the factory 30K checkup is BS, but you have to do them (not necessarily at the dealer$$$) to keep the warranty intact. As a hot rodder, you check all the fluids frequently anyways, right?
Jim
04-10-2006, 04:47 PM
#16
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Originally Posted by SSmokin99
Could I get this at Kragens or Autozone? Would I be able to change them myself?
04-10-2006, 05:24 PM
#17
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I've checked and replaced mine as frequently as a few days to a week when I was making massive changes, also have let it go for several months. Kind of depends on what the car is doing and what changes I've made.