Very interesting. Thanks for the link!

 

hmmm interesting

 

The "z" in the name is very cool and hip.

 

Definately a great upgrade starts have been a lot quicker.

 

Anyone else try this?

 

Be warned right now the I6 link looks only like its for the old 02-05 style coil packs, for 06-09 guys make sure you tell the seller you have the new style coil packs (like the 07-11 I4/I5 Colorados).

 

:iagree:

I made sure I told him it was for the new style. And this has quickly become my second favorite mod behind the pcmforless tune.

 

glad I can help you guys get acquainted with my buddy James and his Supersparkz.

I haven't gotten around to ordering them yet but as I posted in the one thread that they definitely work.

 

:thumbsup:

 

Considering that most of us are out of warranty all ready, I dont think its a big deal

 

Find me something that we do that IS approved by GM?

Dude, if you wanna be a rent-a-warranty-cop, I suggest you go play in someone else's sandbox, cause you're obviously missing the point of what a Forum is supposed to be. :weird:

 

How will they void the warrenty?

As I think about them and what a spark is (high voltage impulse), running that down an inductor which is what the spring is there is a certain amount of resistance to the flow of that spark energy to the plug. The spring is definitely convenient for production where hundreds of these have to be installed every hour.

 

Okay, I'm a relative newbie to these forums, but I have done lots of work to my old 70's/80's cars, so bear with me. On my older cars when I modified it to improve the ignition I could open the gap some to improve combustion and hence gas mileage a little. If this mod will improve combustion enough to smooth out a rough idle, do you think it's possible that we could open the plug gap a little and possibly help improve fuel economy too? I know it's not going to make a huge difference, but a little here, a little there, every little bit helps. I'm just wondering.

 

Okay, just ignore my previous post, I just realized that I can't change the gap on the iridium plugs, so just ignore my question.:duh:

 

So why is that? I have to know since I just bought my ac delco iridium plugs? Thanks

 

I'm not sure, I've read in several places that the iridium plugs are gapped where they're supposed to be and should not be messed with. It even says that on the plug packaging. I've heard that trying to gap them could/will damage the iridium tip and hinder sparking ability, causes misses, etc.

However, if a person were very careful, just maybe they can regap the plugs a little bigger and try it out. I don't know, it might be worth a shot. My thought is that I'm due for a new set of plugs anyway, and they're not that hard to change. So, I put the new plugs in for a few tanks to see what the mileage is for a baseline. Then, I try to clean and gap the old plugs a little wider and swap them in. If there aren't any immediate problems (misfires, etc.) I'll leave them in and see if there's any change to performance and/or fuel mileage.

Either way, I'll post my findings.

 

Ok i know its been a while since this was posted but any updates and where can i buy such supersparkz!!!!!!! :hail:

 

https://www.paypal.com/us/cgi-bin/w...9b525e0b7e69bf0224adecfb0124e9b61f737ba21b08198ccf805f1b90b660c53f96f39c1a34e95

and he says this in his post:
TrailBlazer / Envoy
4.2L I6, USA PAYPAL: $45.00, PAYPAL: Canada $65.00
When placing your order, please specify if your coil pack has a heat sink or not.

 

The link is not working. It just goes to a PayPal page.

 

by the way I just ordered mine and it says on the instructions to soak them with ketchup when they need cleaning...
When and how often do you think I would need to clean them? anyone had these running for over a year?

 

here
http://forums.trailvoy.com/archive/index.php/t-93385.html

any update on the cleaning question??

 

I have a set of the supersparkz with new coil boots for sale for the newer style coil for the '06 and up. $15. As for the cleaning do it once a year at most. Let them soak for about an hour and rinse off.

 

Has anyone had any issues with the supersparkz mod when i installed them on my 08 tb with 4.2l i6 my check engine light has been on and my mileage has gone down terribly 11mpg on a positive note my idle has improved as well as throttle response anyone have an idea why im having issues

 

I had these installed for 2 weeks, truck ran fine for a few days then started idling rough and giving code P0300.
I switched back to the original springs and it ran way better.
Waste of money.

Also have his ported throttle body, no change in performance.