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Feb 10, 2008 | 03:34 PM

#26

BigEMU1

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Joined: 10-27-07

Posts: 248

Likes: 0

From: Nashville, TN

Quote:

Originally Posted by CSM Huber

As an "old school" mechanic, I too have to wonder about the heat range of the plug, if its a "projected tip" type, and the "gap". For high RPM firing of the plug in a forced induction or high compression engine, some performance gains (lower 1/4 milw elapsed time) can achieved by dropping a heat range or two and dropping the spark gap by .010 or .015 inch. With a smaller spark gap, the break down voltage occurs sooner, effectively advancing the spark.

Are you reading these plugs?

Well I just read specifically on their website that it is absolutely NOT intended for Forced Induction, N20, or cars with modified internals, but is perfect for N/A's with bolt-on's.

I thought it was the other way around. You want to test the plug to operate with the highest gap possible for performance. Someone correct me if I'm wrong.

Would an N/A 2.4L with modified internals see benefit from a plug that is a step colder? Let's say I/H/E/TB/Inj/Cams/Tune. I'm thinking there would be more leeway in tuneability with a step colder, even N/A?

Sep 7, 2009 | 04:17 PM

#27

sanchez

New Member

Joined: 06-29-08

Posts: 66

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From: prince george

bump any new news on these plugs

Sep 7, 2009 | 04:22 PM

#28

berto

Senior Member

Joined: 10-30-07

Posts: 1,457

Likes: 0

From: Bakersfiled,CA

These are good plugs
i had em on my old lsj
and i really felt the difference in power...good buy

Sep 7, 2009 | 04:44 PM

#29

steddy2112

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iTrader: (1)

Joined: 05-08-06

Posts: 25,520

Likes: 3

From: Newark DE

These plugs are the biggest ******* scam ever.

Sep 7, 2009 | 04:52 PM

#30

09cobaltsc

New Member

Joined: 07-20-09

Posts: 175

Likes: 0

From: tulsa, ok

Quote:

Originally Posted by steddy2112

These plugs are the biggest ******* scam ever.

they arnt a scam my buddy has them in his 05 ls and we both went to the dyno and my 09 bases 157 at the wheels his 160 at the wheels few extra horses. my 09 has 2k miles his has 36k

Sep 7, 2009 | 05:17 PM

#31

CordiaDOHC

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iTrader: (2)

Joined: 06-23-09

Posts: 3,809

Likes: 0

From: Chesterfield Missouri

Quote:

Originally Posted by 09cobaltsc

they arnt a scam my buddy has them in his 05 ls and we both went to the dyno and my 09 bases 157 at the wheels his 160 at the wheels few extra horses. my 09 has 2k miles his has 36k

That doesnt mean anything. Thats typical difference between stock cars... It could also be because his car has loosened up while yours still a bit tight still from the factory.