[Z06] Tune up. Spark Plugs?
Thread Starter
Burning Brakes
Joined: Apr 2012
Posts: 786
Likes: 3
Tune up. Spark Plugs?
Hi. Last year i got most of the stuff flushed.
1 - Coolant
2 - Tranny
3 - Rear End
4 - Clutch
5 - Brake
Now I'm going to finish it up with spark plugs and wires.
My mods are:
1 - Intake Vararam VR-B2
2 - Random Technology - High Flow Cats Stainless 2-3/4" X-Pipe
System
3 - B&B-PRT Exhaust
I'm thinking of going with
1 - GM Performance Spark Plug Wires http://www.westcoastcorvette.com/p-4...04-c5-z06.aspx (are these the GMPP red wires)
2 - Which Spark Plugs do you guys recommend for me?
Thank You
1 - Coolant
2 - Tranny
3 - Rear End
4 - Clutch
5 - Brake
Now I'm going to finish it up with spark plugs and wires.
My mods are:
1 - Intake Vararam VR-B2
2 - Random Technology - High Flow Cats Stainless 2-3/4" X-Pipe
System
3 - B&B-PRT Exhaust
I'm thinking of going with
1 - GM Performance Spark Plug Wires http://www.westcoastcorvette.com/p-4...04-c5-z06.aspx (are these the GMPP red wires)
2 - Which Spark Plugs do you guys recommend for me?
Thank You
Last edited by 2003corvettez06; Mar 14, 2013 at 08:45 PM.
Race Director
Joined: May 2004
Posts: 15,866
Likes: 196
From: PA
I replaced my original plugs and wires last summer while doing my valve spring swap at 40k. I went with the msd red plug wires, bought from a vendor here, they were the same price the parts store wanted for the gm wires (around $80). Ive not heard anything bad about the stock wires, just figured I'd try these for the same price. Went with ngk tr55 plugs.
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Le Mans Master
Joined: Apr 2005
Posts: 8,077
Likes: 4
From: Scarborough ONTARIO
I actually saved them in safe place in case if i put my car back to stock (they dont recommend iridium plugs with SC setups).
Safety Car
Joined: Jan 2012
Posts: 3,956
Likes: 520
From: Da U.P.
I just went with factory iridiums, I think some people massively overthink the whole spark plug thing. I also went with GMPP red wires thus ensuring the resistance values were compliant with the stock dwell tables that I have no desire to fvck with.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
See this thread:
http://forums.corvetteforum.com/c5-z...-plug-gap.html
- TR55s come gapped at 0.060"
- TR5s come gapped at 0.040" (same heat range, etc as TR55s ...ONLY the factory gap is different)
- TR6s come gapped at 0.040" ... but different heat range than TR5s.
TSB about new plug gap:
http://www.acdelcotechconnect.com/pd..._03D-J-171.pdf
Another plug thread going on in Tech forum:
http://forums.corvetteforum.com/c5-t...-plug-gap.html
Last edited by ZeeOSix; Mar 17, 2013 at 07:44 PM.
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
I have ran the stock GM Iridium plugs and and the TR55s. Noticed no differences between the two, except the extreme price difference. The NGK TR55s are reasonably cheaper.
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
If you're going to go with non-Iridium plugs then should go with TR5s since they have the right gap of 0.040" per the TSB that changed the required gap from 0.060" to 0.040".
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
Le Mans Master
Joined: Mar 2002
Posts: 5,955
Likes: 161
From: PNW
Point is, if you want 0.040" gapped plugs per the TSB, then buy TR5s. Don't buy TR55s (that come at 0.060") and regap to 0.040" and don't buy TR5s (that come at 0.040") and regap to 0.060". NGK is against regapping that much ... they suggest buying the plugs at the gap you need, and not to re-gap.
Last edited by ZeeOSix; Mar 17, 2013 at 08:50 PM.
Thread Starter
Burning Brakes
Joined: Apr 2012
Posts: 786
Likes: 3
put my order in www.partstaxi.com
GM Performance Red Wires
GM AC Delco Iridium spark plugs
Thank you guys for helping me out
GM Performance Red Wires
GM AC Delco Iridium spark plugs
Thank you guys for helping me out
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
Basically informing anyone reading this thread. Point is, if you want 0.040" gapped plugs per the TSB, then buy TR5s. Don't guy TR55s (that come at 0.060") and regap to 0.040" and don't buy TR5s (that come at 0.040") and regap to 0.060". NGK is against regapping that much ... they suggest buying the plugs at the gap you need, and not to re-gap.
Point is, if you want 0.040" gapped plugs per the TSB, then buy TR5s. Don't guy TR55s (that come at 0.060") and regap to 0.040" and don't buy TR5s (that come at 0.040") and regap to 0.060". NGK is against regapping that much ... they suggest buying the plugs at the gap you need, and not to re-gap.
