just curious as to what everyone is regapping their plugs to? Im still running the stock .045 on my firebird with the full ignition, so im curious if i should buy new plugs and regap them.

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1989 Firebird
2.8 v6, t5 swapped in

Performance Mods:
Ram Hi-po clutch, Cold Air, 1.6 rockers,Lakewood LCA's, Lakewood Lift bars, Wonder Bar, 3" y-pipe, Random Tech Cat, 3" I-pipe, Flowmasters, MSd 6a, MSD Coil, Accel 8.8 wires, Auto Meter Gauges (Water, Clock, Fuel Pressure, and 5" Sport Comp Tach)TB Bypass, 4th Gen Seats

Car Stereo:
Blaupunkt head, Monster Cable wiring, MTX Thunder 6000 12" inverted in a personally made box with a 350*1 Amp pushing it, MTX 6x9 in the back with hopes for components in front

Coming for my v6:
Panhard Bar, 4thgen front seats, Nitrous, Line Lock, Posi, Spohn Torque Arm & Subframe connnectors

"I'd rather run last in a full out race, than to NOT have run at all"
#3 Forever

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from what i've heard the .45 is a conservative gap, with an ignition setup, you could run .50, that should be slightly better. I've also heard that running higher, such as .55 brings performance back down. but i haven't tested yet.

 

my ignitions is completely redone too...and i was running +4's. then i put in the rapid fires and ran them at a .055 gap. to tell you the truth, i ran them for about 5 months at that gap, and the car did seem to pull harder. however, i think the .055 is a bit much becuase i would get an occasional hesitation, but it didn't make much sense to me, cause the chiltons said if a plug is gapped too far over it would hesitate at higher rpms, and i was getting it lower in the band.

turns out that about a month ago my hesitation got real bad. so i put my +4's back in and it still did it. it ended up being my distrubtor and o2 sensor. so i can't exactly contribute the hesitation to the gap.

but i definately think there is a small preformance boost to gain here. i'd say try it out at .055 and see what happens and then come back down to .050. but i think you will def feel a difference. let me know what you end up running...i am actually going to put my rapid fires back in and play with the gap again this weekend.



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1990 Firebird 3.1
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- Auto Trans, TA Body Kit
- Home Made C.A.I.
- ASP Underdrive Pulleys
- MSD 8.5mm Superconducter Wires (custom-cut)
- MSD GM Blaster Coil
- AC Delco Cap & Rotor
- Bosh Platinum +4 plugs
- Mobil 1 Synthetic Fluids
- 2.5" Hooker Aero-Chamber Cat-back
- 2.5" Hooker Elite Stainless Extension Tips
- GTS Blackouts (stickers removed)
- TB Bypass

KILLS = Dodge Daytona (stick), 2000 Toyota 4 Runner 4WD,
1997ish Ford Explorer, "older" Jeep Cherokee (don't ask why they are all SUVs...who the hell knows?)

LOSSES = 300zx (had him half way through 2nd, he was manual)

"The racing dice added 5hp...I SWEAR!"