Better cold plugs than TR6?
I know a lot of us are in the habit of just using the NGK TR6. I've noticed the Ford Lightning camp HATES the NGK TR6 and prefers Denso plugs. How about the Grand National camp?
Anyone want to talk about different cold FI plugs?
Options:
NGK TR6
NGK BR7EF
Denso IT22 $$
Denso IT24 $$
Champion S57C
AutoLite 103
AC Delco FR1LS
How many FI'ers here have been pulling their TR6's and reading their plugs on a frequent basis?
<small>[ December 01, 2002, 05:19 PM: Message edited by: MelloYellow ]</small>
first off champion C series plugs don't fit these heads.
You need S series plugs.
I used to run s57c when I was on the bottle.
Autolite 103's are OK, but I have never had much luck with them. I like ngk tr6 better.
A champion s57c is a non projected tip, no resistor,cut back center electrode race plug.
Very cold and will foul out very quickly with normal driving.
A 55 or 53 would be totally out of the question for any street use.
A s57c is about the limit for any low speed use IMO.
Steve
- Dug
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AC DELCO FR1LS , gapped @ 0.035
about 16 bucks a set <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
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But the FR1's are very cool plugs, i definitely have to wait for my car to get some heat in the cylinders before it smooths out only takes a minuete or two.... <img border="0" alt="[Burnout]" title="" src="graemlins/burnout.gif" />
I know a lot of us are in the habit of just using the NGK TR6. I've noticed the Ford Lightning camp HATES the NGK TR6 and prefers Denso plugs
The TR6s are probably in more Lightnings than any other plug(because many do like them) except the OEMs.
Having said that, with 5 lb pulleys or higher, we need an even colder plug. I use the NGK BR7EFs
Dan
Maybe a better Q would be, should an LS1 also run the colder NGK BR7EF plug when running 6-10psi?
What is the Lightning C/R again?
Any reason the Lightnings would want a colder plug but we wouldn't?
If you want to spend $$, then the Denso IT22 or 24s(colder) can be had for about $90/eight.
I think our c/r is 8.4/1, and I'm pushing about 15 lbs of boost.
Dan
<small>[ December 01, 2002, 04:18 PM: Message edited by: LIGHTNINROD ]</small>


