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Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 07-05-2005, 11:06 PM   #21
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Already put the old ones and new one back in. now I have 6 autolite 605'* to carry around in the trunk as spares
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Old 07-05-2005, 11:07 PM   #22
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Quote:
Originally Posted by willwren
Be careful out there.

Big difference, and a waste of money when you have to change out Plats in a month for Irridiums.

Copper plugs are preferred over Irridiums in Supercharged cars. They dissipate heat more quickly.

NGK TR55 gapped at .055" for one heatrange colder
NGK TR6 gapped at .050" for 2 heatranges colder

Or the Autolite plugs (copper).
What the hell, are you telling me I should now put the 605'* back in and throw the iridiums?
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Old 07-05-2005, 11:08 PM   #23
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Keep the iridiums...they will be fine. I run them in both cars. If you start modding super heavy like Zilla..then start thinking copper.
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Old 07-05-2005, 11:09 PM   #24
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Quote:
Originally Posted by BillBost37
Keep the iridiums...they will be fine. I run them in both cars. If you start modding super heavy like Zilla..then start thinking copper.
Not necessarily true. Mods mean nothing. Even NGK leans towards Copper plugs for forced induction, and they MAKE the Irridiums.
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Old 07-05-2005, 11:11 PM   #25
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Quote:
Originally Posted by willwren
Quote:
Originally Posted by BillBost37
Keep the iridiums...they will be fine. I run them in both cars. If you start modding super heavy like Zilla..then start thinking copper.
Not necessarily true. Mods mean nothing. Even NGK leans towards Copper plugs for forced induction, and they MAKE the Irridiums.
I gotta talk to an admin/mod...this willwren guy is always trying to prove me wrong...lol

He should be out working on his car!
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Old 07-05-2005, 11:12 PM   #26
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I spent 2 hours on the phone with NGK (who makes the AC Delco Plugs) and took notes. That'* where the Techinfo article came from, and much of my own knowledge.

A copper plug will last longer and perform better in your cars than an Irridium, and far better than Platinum.

NEVER run Bosch. Bosch ANYthing.
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Old 07-05-2005, 11:29 PM   #27
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Quote:
Originally Posted by willwren
I spent 2 hours on the phone with NGK (who makes the AC Delco Plugs) and took notes. That'* where the Techinfo article came from, and much of my own knowledge.

A copper plug will last longer and perform better in your cars than an Irridium, and far better than Platinum.

NEVER run Bosch. Bosch ANYthing.
OK, the 605'* go back in. Who wants a set of iridiums. 5 have about 40,000 on them and 1 new.
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Old 07-05-2005, 11:31 PM   #28
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I'd take them but mine should be good for close to 100K with a little care
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Old 07-06-2005, 09:07 AM   #29
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605'* back in this morning while it was cool (engine and outside temp). Am going out to check seat of the pants dyno. Maybe vids and pics of something new later today.
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Old 07-06-2005, 09:26 AM   #30
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Quote:
Originally Posted by sonoma_zr2
605'* back in this morning while it was cool (engine and outside temp). Am going out to check seat of the pants dyno. Maybe vids and pics of something new later today.
Since I'm also running the Irids I'd be interested to hear if you think it has more power. Personally mine run so nice and stay cool that I am willing to stick w/the original equipment.
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