NGK TR55
Thread Starter
Racer
Joined: Sep 2002
Posts: 420
Likes: 1
From: SAN DIEGO CA
NGK TR55
Going to get the NGK tr55 plugs for my 86 Vette tomorrow. After reading the posts I heard these were decent plugs. Hope they are the right ones. Quick nay or yea would be good.
Race Director
Joined: Aug 2002
Posts: 17,367
Likes: 1
From: Kentucky
Re: NGK TR55 (PMARTINEZ92126)
NGKs home page recommends FR4 5155 for 86 with alum heads and UR5 2771 or UR5VX 4973 for iron heads http://www.ngksparkplugs.com/
[Modified by castivers, 8:23 AM 2/28/2003]
[Modified by castivers, 8:23 AM 2/28/2003]
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: NGK TR55 (superlund)
Yea...
Putting in TR55IX next time around myself.
Putting in TR55IX next time around myself.
BTW, called O'Reily Auto Parts today looking for the TR55IX & found out they don't carry them locally, neither did AutoZone?
[Modified by superlund, 6:05 PM 2/28/2003]
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Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: NGK TR55 (Strick)
Some of us have had trouble with the platinum tips/pucks coming off of the AC platinum tipped plugs...common problem with the AC design. I believe the pucks are thermal fused to the center electrode. While made in Japan NGK's happen to be some of the best quality plugs around, right next to Denso's...
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: NGK TR55 (Strick)
Well, I've done the required reading and I guess it's time to buy the NGK 55IX plugs. Boy the center electrode sure looks small.
:skep:
Strick
:skep:
Strick
Burning Brakes
Joined: Oct 2002
Posts: 1,152
Likes: 1
From: Wichita KS
Re: NGK TR55 (Strick)
Good luck finding the NGK TR55IX, I spent an hour after work today, my O'Reilly's can't even order them, no ordering option? Went to Advance Auto who has a PN but can't get them either...Called Autozone, they don't even want to talk about NGK. Didn't think I'd be forced to order spark plugs via an internet site.. :crazy:
Race Director
Joined: Feb 2003
Posts: 11,671
Likes: 20
From: Lake Wylie SC
Re: NGK TR55 (Strick)
I bought TR55IX NGK plugs from Thunderracing.com at $6.99 each. O'Reilly is not around here, their price is $5.89 each. I hope they don't foul on me. I'm upgrading my coil while I'm at it. (We need a smilie face throwing $$$$)
Hope you guys know your stuff.
SEE YA
Strick
Hope you guys know your stuff.
SEE YA
Strick
Le Mans Master
Joined: Feb 2002
Posts: 7,858
Likes: 2
Re: NGK TR55 (Strick)
I tried a new MSD Blaster GM coil back when i still had the stock AC platinum plugs installed and it didn't make any noticeable difference at all.
I refunded it and put the stock coil back on.
The iridium plugs require less voltage to fire than either conventional or platinum plugs (according to Denso and NGK), so I don't see a reason to put in a hotter coil.
I also wondered how the stock wires and the optispark would tolerate a hotter coil over the long term, since my opti and wires are recent (@ 6000 miles ago).
All of the above considered, one reason GM changed to a different coil for '96 LT1/4 was to get a little better voltage output above ~5500rpm, so maybe 92 - 95 cars might benefit from a little better output at the high end...
[Modified by Lone Ranger, 4:37 PM 3/3/2003]
I refunded it and put the stock coil back on.
The iridium plugs require less voltage to fire than either conventional or platinum plugs (according to Denso and NGK), so I don't see a reason to put in a hotter coil.
I also wondered how the stock wires and the optispark would tolerate a hotter coil over the long term, since my opti and wires are recent (@ 6000 miles ago).
All of the above considered, one reason GM changed to a different coil for '96 LT1/4 was to get a little better voltage output above ~5500rpm, so maybe 92 - 95 cars might benefit from a little better output at the high end...
I bought TR55IX NGK plugs from Thunderracing.com at $6.99 each. O'Reilly is not around here, their price is $5.89 each. I hope they don't foul on me. I'm upgrading my coil while I'm at it. (We need a smilie face throwing $$$$)
Hope you guys know your stuff.
SEE YA
Strick
Hope you guys know your stuff.
SEE YA
Strick
[Modified by Lone Ranger, 4:37 PM 3/3/2003]