Different Plugs/Wires mess up tune?
05-27-2009, 04:22 PM
#1
TECH Enthusiast
Thread Starter
iTrader: (4)
Join Date: Sep 2003
Location: Rogers, Ark.
Posts: 701
Likes: 0
Received 0 Likes
on
0 Posts
Different Plugs/Wires mess up tune? I got new stock AC Delco plugs and new plug wires installed in my car probably 40,000 miles ago. I had the dealer install them, and they said they gapped them to the appropriate GAP.. I have since got it tuned and cammed...
My question is, if I change out the stock setup for some MSD wires and TR55 plugs, will this effect my current tune?
This is the setup I have been looking at:
http://estore.websitepros.com/2120533/Detail.bok?no=2
-John
My question is, if I change out the stock setup for some MSD wires and TR55 plugs, will this effect my current tune?
This is the setup I have been looking at:
http://estore.websitepros.com/2120533/Detail.bok?no=2
-John
05-28-2009, 02:34 PM
#4
TECH Enthusiast
Thread Starter
iTrader: (4)
Join Date: Sep 2003
Location: Rogers, Ark.
Posts: 701
Likes: 0
Received 0 Likes
on
0 Posts
Thanks for the replies...
Would different heat range plugs mess up my tune then?
..I was reading on another post that some people suggest 1 range cooler plugs for every 100HP?
Thoughts?
-John
Would different heat range plugs mess up my tune then?
..I was reading on another post that some people suggest 1 range cooler plugs for every 100HP?
Thoughts?
-John
05-28-2009, 05:45 PM
#5
I'm pretty new to the whole tuning game, but I have read about people tuning specifically for a specific heat range of plug but then again they are almost always running FI or Nitrous which requires tuning anyway.
05-29-2009, 07:00 AM
#6
TECH Regular
Answer is still no. Spark plugs will not contribute enough change to require a tune. They help protect against detonation with colder plugs but I guess if you used to hot of plugs you would have to take timing out, but really it's not the tune it is using the incorrect plugs.
Use too hot of a plug and you get detonation, too cold and you'll get incomplete burns or misfires. That would be a mechanical issue and not a tune issue.
Use too hot of a plug and you get detonation, too cold and you'll get incomplete burns or misfires. That would be a mechanical issue and not a tune issue.
05-29-2009, 01:46 PM
#7
I have had nothing but bad luck with MSD wires and coils for LS1s. The resistance of the wires was quite a bit higher than stock and sometimes would make a cylinder drop out. Plus the cut-to-fit wires have a tendency of falling apart. Stay with stock GM wires. Same goes for the coils. Stay GM.
__________________
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
Trending Topics
05-29-2009, 02:25 PM
#8
I have had nothing but bad luck with MSD wires and coils for LS1s. The resistance of the wires was quite a bit higher than stock and sometimes would make a cylinder drop out. Plus the cut-to-fit wires have a tendency of falling apart. Stay with stock GM wires. Same goes for the coils. Stay GM.
I have a few friends that are GM techs, and they swear by the fact that if you ever remove a set of stock wires, that you should never reinstall them, new or not.
They warranty every set of wires that have to be removed from a car, as reinstalling them leads to customers returning with misfires in too many cases.
I have a couple of buddies with TT Vettes making 690-780 rwhp, and both run the MSD wires, do you think there is any gain to be had (small or otherwise?) from a swap to different wires?
I'm on my second set of MSD wires, first ones were on for about 3.5 years or so, and I only replaced them cause I ran into another new set for $30.
On the other hand, I have never seen any good come from the coils, GM all the way.
05-29-2009, 02:33 PM
#9
Interesting observation...
I have a few friends that are GM techs, and they swear by the fact that if you ever remove a set of stock wires, that you should never reinstall them, new or not.
They warranty every set of wires that have to be removed from a car, as reinstalling them leads to customers returning with misfires in too many cases.
I have a few friends that are GM techs, and they swear by the fact that if you ever remove a set of stock wires, that you should never reinstall them, new or not.
They warranty every set of wires that have to be removed from a car, as reinstalling them leads to customers returning with misfires in too many cases.
