Im running a 228/235 .565 112lsa cam with ported stock heads and all the bolt ons. 6 speed car with gears blah blah. running a zex kit because of the deal i got on it. im going to retard 2 degrees on 75 hp and probly 100-150 on the track retarded 4-5 degrees at the track.. 30 lb injectors stock fuel pump.. anyyyyyyyyyyyway.. what do i want to gap my spark plugs at? i have no experince with spraying a street car, so im not sure what i should gap my plugs at. any help would be much appreciated

 

I run .030 gap with mods below

 

whats the up or down side to different gap sizes. im told with a nitrous engine you want to tighten up the gap on your plugs, and input/reasons to why i want a tighter gap would be much appreciated

 

with anything under 150 shot don't worry about retarding the timing. and gap at .35 on a tr6.

 

timing is allready advanced due to the tune. i want to spray on stock timing, not advanced timing. and thx

 

i run my tr-6's at .035 too

 

da burg = Schamburg?

 

na st.pete

 

I'd retard the timing also.

If you want to have some fun cut the sidewires back on the TR6's to the edge of the centerwire, that will unshroud the spark with the .035" gap. Want even more fun, index the plugs. I'd have to look if they should point toward the int or exhaust, supposed to be another 5-7 hp (reliable source). I don't do this one, to much work.

I think the smaller gap is to prevent spark blow out, but I run the stock opti and have never had a problem, so who's to say. I'm squeezing almost 200.

Aditionally, I swithed my big car over to an MSD 7AL2 from an Accell super coil and never saw a difference. So again, who knows?

 

Toward exhaust

 

so it matters how the plug faces? What exactly do you mean? So the spark faces a certain way. The open side or the closed side? What is a TR6 plug? I need some better plugs so what you recommend.

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I wanted to know what is the best plug to run? These are my mods. Currently running AC Delco Rapid Fires

-100 Shot NOS
-Ported Throttle Body
-Ported Intake
-Ported and Polished Heads
-Stainless steel valves
-Comp Cams 306 Hydraulic Roller Cam
-1.6 Ratio Magnum Tip Roller Rockers
-Comp Cam Chromemoly Push Rods
-LT4 Hydraulic Roller Lifters
-LT4 Knock Module
-Magnecro KV85 8.5mm Competition Wires
-Edelbrock Midlength Headers
-G2 Cold Air Intake
-K&N Air Filter
-3.42 Gears
-Ported MAF Sensor
-GM Performance Timing Chain
-180 Thermostat
-Air Foil
-Com Cams Dual Valve Springs
-Flowmaster 80 Series Exhaust
-No AIR
-No EGR
-No Cats
-LG Performance Lowering Kit
-High Performance Motor Mounts
-Stage 2 Clutch
-Free Mods
-Hypereutectic Pistons
-Bored .060
-Computer dyno tuning By Speedworks

 

Depends on the engine, but yes, indexing the plugs can make more power. It would be the open end. It's customary to have the open end pointing toward either the intake valve or the exhaust valve.

A TR6 is just a couple steps colder plug for the LT1.

I'm all stock so I can't recommend a plug with all your mods. I'm sure someone will. You're probably ready for a colder plug than stock.

 

The plugs are to hard to put in to keep up with what direction that are faceing!!

 

Not hard for me with my headers to install so is it INTAKE or EXHAUST??? I have gotten 2 answers from both. Was told it was Intake because that's where the air/fuel comes in. http://www.bullittarchive.com/Mainte...ingsparkplugs/