car surging fixed.
Safety Car
Joined: Jul 2006
Posts: 4,647
Likes: 1
From: Objects in your mirror are losing , Long Island, NY
St. Jude Donor '08
Found the problem with the car. Sometimes the simple things will kick your butt.
Bad spark plugs.
I checked everything connections, wires, fuel, you name it. I even pulled some of the plugs a while ago and they seemed normal. They only been in there for about 5k maybe less. I guess the batmobile eats spark plugs. Ive been through two pairs in 10k miles. I would have never guessed that the problem would have been so simple especially since when we scanned it the car was pulling 5 plus degrees of timing in certain areas. Its possible one had a bad core or finely cracked case.
But long story short car is fixed. Took it for a little cruise this evening and some jacka$$ yelled at me to slow down. I just looked at him smiled and smashed the gas pedal.
Have fun in your mini van sucker.
Bad spark plugs.
I checked everything connections, wires, fuel, you name it. I even pulled some of the plugs a while ago and they seemed normal. They only been in there for about 5k maybe less. I guess the batmobile eats spark plugs. Ive been through two pairs in 10k miles. I would have never guessed that the problem would have been so simple especially since when we scanned it the car was pulling 5 plus degrees of timing in certain areas. Its possible one had a bad core or finely cracked case.
But long story short car is fixed. Took it for a little cruise this evening and some jacka$$ yelled at me to slow down. I just looked at him smiled and smashed the gas pedal.
Have fun in your mini van sucker.
Why change something that's not broken?
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
Some helpful info for EVERYONE!
From the beginning of my career I've seen guys with LS motors using the NGK plugs.
I kinda thought they all knew something I didn't know and I was kinda confused as to why I never needed to change them....
Everyone had a reason and sometimes even a problem which caused them to select NGK plugs for these motors.
While everyone should know...Plug selection can make or break a combination, but...for all of you guys with stock engines or even pretty nicely modified engines...The STOCK C5/C6 plugs that came with the car are your BEST CHOICE.!
When using N2O or forced induction engines making more than 6psi or so you may find reason to change your plugs.
IF NOT...LEAVE THEM ALONE if they have less than 100,000 miles on them!
I've had all too many customers come in wanting to change plugs and I always tell them NO!
Additionally, I can't begin to tell you how many guys came in with problems like cracked plugs, poor performance, and pinging..(and loose plugs as well
) which were a result of the customer or tuner "trying" to make a few bucks...or more power...or both.Cameron is living proof...and I did it for a reason to prove a point to everyone.
His 05 C6 makes 500HP to the tire with stock heads on PUMP GAS at 12:1 COMPRESSION!
No NGK plugs, no TR55's, no change in gap....NOTHING.
In fact, Cameron looked at me sideways when he asked what plugs we would be using and I told him...
"The same ones the car came with new....with 34,000 miles on them. And guess what?!?! We're gonna use the same ORIGINAL PLUG WIRES TOO!"
Go buy yourself a few drinks with the money you save...Leave your stock plugs alone!
Chuck CoW
Last edited by Chuck CoW; Oct 15, 2009 at 03:50 PM.
Instructor
Joined: Jul 2009
Posts: 179
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From: RPM Motor Sports Jersey/Delaware
Safety Car
Joined: Jun 1999
Posts: 3,570
Likes: 3
From: Austin, Singapore, Kuala Lumpur, Houston, Dallas, Hong Kong, Elgin, etc.. Texas
I agree with Chuck. NGKs were installed based on the advice of the tuner. Was this based on profit? Perhaps.
But since I was getting a set of ported heads installed, it would seem a good general procedure to put new plugs rather than the old ones. After all, one could be cracked during the removal/reinstallation process and they would have to find it and charge me.
Why NGK? I can't answer that.
But since I was getting a set of ported heads installed, it would seem a good general procedure to put new plugs rather than the old ones. After all, one could be cracked during the removal/reinstallation process and they would have to find it and charge me.
Why NGK? I can't answer that.
Former Vendor
Joined: Nov 2005
Posts: 11,792
Likes: 255
From: Ossining New York
St. Jude Donor '07-'08-'09-'10-'12-'13-'14
NGK are good plugs....
I agree with Chuck. NGKs were installed based on the advice of the tuner. Was this based on profit? Perhaps.
But since I was getting a set of ported heads installed, it would seem a good general procedure to put new plugs rather than the old ones. After all, one could be cracked during the removal/reinstallation process and they would have to find it and charge me.
Why NGK? I can't answer that.
But since I was getting a set of ported heads installed, it would seem a good general procedure to put new plugs rather than the old ones. After all, one could be cracked during the removal/reinstallation process and they would have to find it and charge me.
Why NGK? I can't answer that.
Again, the exceptions are big NOS use and Big PSI FI setups.
Even with heads and cam setups, they are not necessary. The GM plugs have a nice little tip that fires nice and really does not erode so, they really never wear out.
I can count on 1 hand how many times I've changed plugs for customers in LS motors.
Chuck CoW
