12-07-2012, 09:50 AM | #1 |
Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009
Location: Western Massachusetts
Posts: 3,381
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Thinking about going to a cooler plug
Coming up on 45K in mileage and looking at a spark plug change to go one step cooler (level 7). Looking at the NGK IRIDIUM IX Spark Plug LTR7IX-11. Anybody with a SC go to cooler plugs yet ? Seems most people on other V6 forums have said there is a performance increase.
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1st IPF Supercharged 2011 2LT/RS RJT Convertible
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12-07-2012, 09:53 AM | #2 |
Cedar Creek Woodshop
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I am running 1 step cooler spark plugs from NGK
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2014 Black 2SS/RS 1LE
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12-07-2012, 10:08 AM | #3 |
Track > 1/4 Mile
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Did this too, as did Cant_C_Me and a few others I believe. Not sure that you will see a performance increase per se but more likely a consistent performance.
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12-07-2012, 10:13 AM | #4 |
Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009
Location: Western Massachusetts
Posts: 3,381
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Any changes to the tune needed when going to the cooler plug ?
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1st IPF Supercharged 2011 2LT/RS RJT Convertible
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12-07-2012, 10:14 AM | #5 |
Cedar Creek Woodshop
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No tune changes needed bud
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12-07-2012, 04:10 PM | #6 |
Drives: 2011 LS Black on Black 6speed Join Date: Jun 2011
Location: South Beach
Posts: 886
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Just curious as I am just about to join you guys in the SC frenzy. Why don't they include or do that from the install if it is truly helpful\better?
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12-07-2012, 04:41 PM | #7 |
Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009
Location: Western Massachusetts
Posts: 3,381
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Kind of like GM not putting a catch can on the V6. Its not really necessary but I wanted it. The possible damage can't be under estimated.
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1st IPF Supercharged 2011 2LT/RS RJT Convertible
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12-07-2012, 05:21 PM | #8 |
Drives: 2010 IOM 2LT, 1976 Pontiac Trans Am Join Date: Dec 2009
Location: W. Tennessee
Posts: 79
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I have the ipf kit for a while now. I started throwing several misfire codes on all cylinders. Put in the one step colder NGO plugs and gapped smaller. No more codes. I'm a lurker on here. Just an FYI my kit made 380 hp. I'm in the process of long tube headers, full pfadt and pedders suspension, coilovers and now my 3.91 rear gear.
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12-07-2012, 05:46 PM | #9 |
Drives: 2011 RJT 2LT/RS Convertible Join Date: Nov 2009
Location: Western Massachusetts
Posts: 3,381
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What did you gap at ?
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1st IPF Supercharged 2011 2LT/RS RJT Convertible
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12-07-2012, 05:55 PM | #10 |
Drives: 2010 IOM 2LT, 1976 Pontiac Trans Am Join Date: Dec 2009
Location: W. Tennessee
Posts: 79
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.036 but I think Jesse recommends .032. But no problems where mine is set at
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12-07-2012, 06:02 PM | #11 |
1 step colder .38 and colder, two steps .32 and colder on our car. dont ask me how i know
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(Sold Sept 2015) Stock 18" Heritage w/ BFG G-Force ZR tires / Blacked out bowties and tail lights / DIY Remote-Mount Turbo Kit (Precision 6776S .81ar ex. @ 6.5psi, Tial 38mm WG, Greddy Type-S BOV) / RX Catch Can / RX-FTI 3600 Stall / Blue Well Lights / Team LLT
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12-07-2012, 06:13 PM | #12 |
Cedar Creek Woodshop
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How you know?
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2014 Black 2SS/RS 1LE
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12-07-2012, 06:34 PM | #13 |
Misfires and detonation on what im running if too much above that.... Just putting up my stats as a low end benchmark
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(Sold Sept 2015) Stock 18" Heritage w/ BFG G-Force ZR tires / Blacked out bowties and tail lights / DIY Remote-Mount Turbo Kit (Precision 6776S .81ar ex. @ 6.5psi, Tial 38mm WG, Greddy Type-S BOV) / RX Catch Can / RX-FTI 3600 Stall / Blue Well Lights / Team LLT
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12-07-2012, 07:48 PM | #14 |
Don't Sleep on My V6
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I have my NGK's set at .40 anything lower and I get misfires. Every car is different when pushing the limit!
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