NGK TR55 OR NGK TR55ix ??????????????
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 8,155
Likes: 1
From: The United States of TEXAS www.corvettemotorsportsinc.com
St. Jude Donor '07-'08-'09-'10-'11
NGK TR55 OR NGK TR55ix ??????????????
I am running the delco plat plugs now. The referalls seem to lead towards the ngk but for the TR55 OR TR55IX? There is a huge differance in price. I know the ix is an iridium plug. I'm going to change the wires to probably to the msd's. Thanx in advance for the response.
dlj
dlj
Safety Car
Joined: Oct 2000
Posts: 4,949
Likes: 10
From: Monticello MN
Originally Posted by NTRBL33
I am running the delco plat plugs now. The referalls seem to lead towards the ngk but for the TR55 OR TR55IX? There is a huge differance in price. I know the ix is an iridium plug. I'm going to change the wires to probably to the msd's. Thanx in advance for the response.
dlj
dlj
Ed
Race Director
Joined: Mar 2001
Posts: 19,981
Likes: 6,782
From: Bonneville Salt Flats
If whatever is in it now has worked okay for a reasonable length of time, why not replace with the same? There is no "magic" plug, anyway, as long as the heat range is correct for the application and usage, and it's gapped appropriately.
All the best.
All the best.
Racer
Joined: Oct 2004
Posts: 399
Likes: 0
From: Edgewood WA
Originally Posted by Gordy M
The Delco irridium and NGK irridium are virtually the same. The new gap recommended is 40 thousands.
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Burning Brakes
Joined: Nov 2004
Posts: 836
Likes: 0
From: Lake Norman NC
I switched from the stock Platinum plugs & wires to the NGK TR55ix's and MSD wires and I noticed that the engine ran slighty smoother at idle as well as through the RPM band, not as much shaking-jerking @ idle etc, I would recommed them! 
