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Zufelt

Proven Member
543
9
Oct 15, 2012
Lemoore, California
MOOO..

Kidding, anyways I had a few questions. I'm trying to get my car running right by doing the maintence that's required to begin modding. The car seemed to be running fine for awhile (besides a rough idle) but now it won't pull at all. In the top end around 75-80, In fifth I can floor it and have the identical acceleration as a RS/GS. The car is making 12 pounds, with no boost leaks. Checked to make sure my WOT was 100%, double checked, and triple checked for boost leaks couldn't find any. So I pull the plugs and the tip is white, which I'm assuming is leaaaaan. Because this is pretty obvious white. The timing components were changes about 55k miles ago. Thinking it could have pulled timing a tooth. This is the only thing I haven't checked yet, because I don't have the proper tools. Timing is next on my list, but I'd like to see your guys opinion as to how to approach any other possibilities, so I Can fix those first, because my car is beyond slow, and has even since about 50k miles into the timing change. Plugs below! Also, the gap seems a bit big to me.. Had the megabit change them out before I started doing my own work (other than timing)


F3E0B490-CF89-4646-A22F-7FE8EE5211EF-454-0000005A0D102BBE_zps94b90f78.jpg


DBB5AFDD-3268-4418-A643-DCA2390E608E-454-0000005A01D659DE_zpsa651ab80.jpg


Mods!!
272 Cowler Cams
KN air filter
Injen air intake
Shepard racing tranny
Tokito struts, and shocks.
 

Joethefallen23

Proven Member
439
8
Dec 31, 2011
Fishkill, New_York
For starters, you have the wrong plugs. Platinum plugs don't mix well with Turbo 4G63s. If you're running any moderate power levels over stock, NGK BPR7ES is what you should have in there. Stock-ish levels will be fine with BPR6ES. These cars don't like anything but good old copper plugs. Gap them to .028
 

theoneandonlyg

Probationary Member
33
0
Mar 13, 2013
Ludlow, Massachusetts
For starters, you have the wrong plugs. Platinum plugs don't mix well with Turbo 4G63s. If you're running any moderate power levels over stock, NGK BPR7ES is what you should have in there. Stock-ish levels will be fine with BPR6ES. These cars don't like anything but good old copper plugs. Gap them to .028
Well said. The idiot I bought my gsx from had platinum plugs in it and one day while driving a spark plug got so hot that it melted! Not to mention has caused me a few issues! NGK coppers ftw.:thumb:
 

gbwhits2

Probationary Member
3
0
Mar 23, 2013
sellersburg, Indiana
had similar problems yesterday and swapped plugs out and ...ta da...acceleration again
 

Zufelt

Proven Member
543
9
Oct 15, 2012
Lemoore, California
That would be nice if that was the problem, ill gap and switch them soon! Ill report back when I've done so! Thanks guys.
 

Zufelt

Proven Member
543
9
Oct 15, 2012
Lemoore, California
New spark plugs are in, same problem. Lack of power.. If it helps diagnose the problem whenever I try to start my car it turns over, kinda studders like a small jolt turns over an starts. This is all within 3-4 seconds, and it doesn't do it all the time. Any inputs appreciated.
 

Zufelt

Proven Member
543
9
Oct 15, 2012
Lemoore, California
Also have been getting horrible mpg.. Perhaps an 02 sensor?
 
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