what spark plugs to use

i'm having some trouble finding the right plugs to use the car is supercharged and i'm running high comprestion so if anyone has any clue what plugs to use and what i should gap them at let me know thanks chris.

[Boost Addict]

I've got TR6's

[CTsz28]

are they ngk what did you gap them at

[Boost Addict]

Yeah, NGK, I'd say around .030.

[CTsz28]

Thanks iv tryed all different kinds of plugs so hopfuly that takes care of the problem

[Orange Terror]

Agreed, TR6's should work for that application.

[CTsz28]

where can i get these pulgs i looked on jegs and i cant find them

[the_dragon]

try the E3 sparkplugs they r like 6$ for one and they get better mpg and about 10-15 bhp on a ls1.

[ITSSLOW]

You can get NGK's at most auto stores. We sold them at the Auto Value I worked at.

[.DetroitKing.]

try the E3 sparkplugs they r like 6$ for one and they get better mpg and about 10-15 bhp on a ls1.

um no, not for this type of setup either


murrays has tr6's

[CTsz28]

cool thanks for all the help i post back after i get them in

[Orange Terror]

where can i get these pulgs i looked on jegs and i cant find them

Autozone, Advance auto, Napa, most parts stored carry them.

[lozanoa11]

i thought you were sposed to use tr5's when using forced induction?

[Orange Terror]

Nope, IIRC TR6's for forced induction, TR5's & TR55's for NA. Typically you go colder on a plug with the more power you make. NGK recommends you step down 1 step colder for every 100 hp you add.

Also on the gaping:

A spark plug part number might fit hundreds of different engines from many different manufacturers. Although the NGK factory will set the gap to a pre-selected setting, this may not be the right gap for your particular engine. The incorrect plug gap for your engine can contribute to a high rate of misfires, loss of power, plug fouling, poor fuel economy, and accelerated plug wear. It is always best to check the gap against the manufacturer's specifications. If adjusting the gap on fine wire or precious metal plugs such as platinum or iridium be very careful not to apply any pressure or prying force to the fine wire center electrode or insulator as they can be damaged. The gap should be adjusted by only moving the ground electrode.

Another consideration that should be taken into account is the extent of any modifications that you may have made to the engine. As an example, when you raise compression or add forced induction (a turbo system, nitrous or supercharger kit) you must reduce the gap (about .004" for every 50 hp you add). However, when you add a high power ignition system (such as those offered by MSD, Crane, Nology) you can open the gap from .002-.005".

http://www.ngksparkplugs.com/tech_su...p.asp?mode=nml