NGK TR55GP good spark plug for LT1?
#1
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NGK TR55GP good spark plug for LT1?
I'm just wondering if the NGK TR55GP are a good spark plug to buy for an LT1?
Also what is the difference between the TR55 and the TR55GP?
Also what is the difference between the TR55 and the TR55GP?
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when I got my bird and did plug and wires, I had first put bosch platinums in, didn't know any better at the time. About a year later I put TR55's in and noticed the car ran smoother.
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Ok so now I'm wondering if I should take back the tr55gp's and get the tr55's?
If theres no real difference in performance I should just take them back and save myself a few bucks.
What do most of you prefer/use?tr55?tr55gp?
If theres no real difference in performance I should just take them back and save myself a few bucks.
What do most of you prefer/use?tr55?tr55gp?
#12
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Platinum plugs are no good for high performance use.
When I removed my stock AC (platinum plugs) from the stock engine at about 25k miles, PRIOR to installing TR6's to run nitrous, 5 of the 8 plugs had the little platinum puck missing from the ground electrode. Platinum is a VERY hard material to have ricocheting around in your engine!
I'll never again run them in anything I own that gets hard use.
When I removed my stock AC (platinum plugs) from the stock engine at about 25k miles, PRIOR to installing TR6's to run nitrous, 5 of the 8 plugs had the little platinum puck missing from the ground electrode. Platinum is a VERY hard material to have ricocheting around in your engine!
I'll never again run them in anything I own that gets hard use.