Spark Plug Gapping

**kindaquick** · 06-07-2008, 05:28 AM

I've got a 01 Firehawk which I've put NGK TR 55 plugs into. I gapped them at .054. Does anyone know if this gap would cause any issues? The car seems to run fine, but I just want to be sure that I shouldn't have left the plugs at the stock .060.

The only mods I have are as follows:
Blackwing Lid w/Holley Powershot
SLP Dual Dual catback
Smooth Bellows
MSD Wires

so...not much.

**itsfess** · 06-07-2008, 10:34 AM

I have the same plugs gapped the same. runs fine and makes power so I would say your ok. BTW where are you at in Columbus?

**kindaquick** · 06-07-2008, 07:23 PM

Originally Posted by itsfess

I have the same plugs gapped the same. runs fine and makes power so I would say your ok. BTW where are you at in Columbus?

Galloway, my friend.

**itsfess** · 06-08-2008, 07:26 PM

it's cool to hear that someone else is from columbus on here. I live in the groveport area. and GO BUCKS

**INMY01TA** · 06-09-2008, 04:45 AM

.054 is fine. I've tried everywhere from .050-.059 and it drove fine everywhere.

**kindaquick** · 06-13-2008, 04:56 PM

Thanks guys. Just curious

**Orange99z28** · 06-17-2008, 04:00 AM

i just gapped mine at .53 and so far so good, better mpg already (only changed 7).

any advice on gettin that last one?? pass. side rear..

my hands hurt soo bad from tryin

**02nbmvert** · 06-17-2008, 06:39 PM

Originally Posted by Orange99z28

i just gapped mine at .53 and so far so good, better mpg already (only changed 7).

any advice on gettin that last one?? pass. side rear..

my hands hurt soo bad from tryin

get it from underneath with a swivel extension... if you're not incredibly buff, your arm might just fit up between the cat and tranny. (i'm assuming you're talking about the number 8 plug which is the rear passenger side) I didn't have a way to lift the car so I got the passenger side up on a high curb, by backing up across a driveway. Whatever works! good luck!

**Orange99z28** · 06-17-2008, 08:47 PM

yeah its the #8, why the helI would they put it way out of reach from anywhere?? i went up through the bottom and tried the top, i think i might need to get some new tools..

**02nbmvert** · 06-18-2008, 02:54 PM

i had to buy a swivel extension. With that it wasn't all too hard. The hardest part for me was trying to pull the plug wire boot off the plug... My arm didn't really fit through there too well. The swivel extension was really the only way I would've been able to get to it myself. Dealership actually told me they would've had to pull the engine to get that plug... PSH!

**OnEbAdReDSS** · 06-19-2008, 11:02 AM

do you guys have LT's? mine take about 2 minutes with Lt's

**02nbmvert** · 06-19-2008, 11:07 AM

Originally Posted by OnEbAdReDSS

do you guys have LT's? mine take about 2 minutes with Lt's

Not yet. I'm actually on the market for some LT's right now. Its kind of a bitch getting that #8 plug w/ stock manifolds though.

**Z28collection** · 06-19-2008, 11:40 AM

ye when i put my hooker LT's on it was much easier to get the #8 plug. i still have to get it from under the car though.

**99w69kitt** · 06-20-2008, 07:26 AM

you can take off the coil packs its easy that way also

**02nbmvert** · 06-20-2008, 08:30 AM

Originally Posted by 99w69kitt

you can take off the coil packs its easy that way also

On stock manifolds, I still couldn't get my #8 plug from up top even with coil packs completely out of the way. I don't remember if I tried again from the top once I got my swivel extension or not though.

**niterunnr** · 06-20-2008, 08:51 AM

get a swivel extension from auto zone for 6 bucks and go under neath between cats and tranny i did they same on my ls1 u can pull it up on a ramp but be very carefull not to bend sub frame mine is t-tops it dont take much