.035 gap or .050?? 
.035 gap or .050??
Go with .060 as you'll have a great flame front like the factory intended... 
You got 8 coils don't forget, use them....
I know some of you will say that you can't do that to a tr6 plug...
Yes you can, I little work is all it takes..
I've been running the same set of tr6 at .060 for 3 years with no problems...
Once a year I pull the plugs to check them & make very minor gap adjustments on a few, they look perfect....
Last time at the track I ran my best ever at 12.52@110.91 with a bolt on car...
98 Z28 A4 3.23 GSCs street tires, stock convertor, heads , cam . Shorty headers with a catback & asp pulley.
Dave
You got 8 coils don't forget, use them....
I know some of you will say that you can't do that to a tr6 plug...
Yes you can, I little work is all it takes..
I've been running the same set of tr6 at .060 for 3 years with no problems...
Once a year I pull the plugs to check them & make very minor gap adjustments on a few, they look perfect....
Last time at the track I ran my best ever at 12.52@110.91 with a bolt on car...
98 Z28 A4 3.23 GSCs street tires, stock convertor, heads , cam . Shorty headers with a catback & asp pulley.
Dave
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From: Your Reality Check Bounced...
.5/.55/.60 will work fine on a BOLT ON car...if you are running any kind of power adder drop it down to .45....
I run right at .48 cause I run the occasional 100 shot on my H/C car w/TR6's...I don't get any missfire codes at all except the normal "Big cam" misfire codes you'd normally get.
I run right at .48 cause I run the occasional 100 shot on my H/C car w/TR6's...I don't get any missfire codes at all except the normal "Big cam" misfire codes you'd normally get.
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From: Atlanta, GA
you want to close the gap when you are running excess fueling (aka heavily modded, tweaked for richness) or spray (very rich). or you'll blow out spark and misfire.
For a stock motor running stock air fuel ratio's i'd stick to stock gap to maximize the flame burn.
When your tuner bumps it down richer to extract more power or control egt's or if you plan to use the bottle you gotta gap them down unless you got some special coils or something. My poor vw is gapped at 24thous (Boosted) and it doesn't blow out spark till about 9:1 air fuel with 139K/13 year old components.
Thats basically the gist of it. Don't have misfires, don't reduce the gap. Your motor may not run as efficiently as one said above with too small of gap, which could reduce mpg or make for a slightly less smooth low load conditions.
For a stock motor running stock air fuel ratio's i'd stick to stock gap to maximize the flame burn.
When your tuner bumps it down richer to extract more power or control egt's or if you plan to use the bottle you gotta gap them down unless you got some special coils or something. My poor vw is gapped at 24thous (Boosted) and it doesn't blow out spark till about 9:1 air fuel with 139K/13 year old components.
Thats basically the gist of it. Don't have misfires, don't reduce the gap. Your motor may not run as efficiently as one said above with too small of gap, which could reduce mpg or make for a slightly less smooth low load conditions.
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From: SW Florida
I run .050" on TR55 plugs. The larger the gap, the larger the spark (as long as the ignition system can handle it)
High boosted engines or nitrous will need a tighter gap so the spark flame front won't blow out.
No nitrous or boost > Keep the gap between .050" and .060"
Stay with TR55s unless you are boosted or run nitrous (then use TR6s gapped to maybe .040")
High boosted engines or nitrous will need a tighter gap so the spark flame front won't blow out.
No nitrous or boost > Keep the gap between .050" and .060"
Stay with TR55s unless you are boosted or run nitrous (then use TR6s gapped to maybe .040")
I ran some TR6's at .055 for a while and it gave me a missfire code at WOT, the SES would start flashing and the car would stop pulling. Installed a set of TR6's that were gapped .040 and haven't had a problem since. For the mods you have, buy some TR55's and use those at the preset gap.
I am getting a mis at wot or a put..... do my gap was at .50 you think that with .35 may stop the problem.
OLD SETUP 2001 ss camaro,Edelbrock Terminator heads, MS3 on 113, SLp underdrive, hooker 1 3/4 headers,slp lid, grantelli maf, fast 70mm, bbk 80mm, svo 42 injectors.
NEW SetUP Same up top but with a 6.0 lq9, T-rex and a fast 90\90mm, slp 85 maf and 42lbs injectors and a stock fuel pump.
OLD SETUP 2001 ss camaro,Edelbrock Terminator heads, MS3 on 113, SLp underdrive, hooker 1 3/4 headers,slp lid, grantelli maf, fast 70mm, bbk 80mm, svo 42 injectors.
NEW SetUP Same up top but with a 6.0 lq9, T-rex and a fast 90\90mm, slp 85 maf and 42lbs injectors and a stock fuel pump.
