Spark plug & gap for fi ????
06-10-2009, 03:43 PM
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Spark plug & gap for fi ???? Hey guys ,Im getting ready to take my ride up to Gettysburgh,Pa this weekend for a tune on my 02 35th APS and currently am running the NGK R TR6 V power plug and was wondering whats the best gap to set these at before i receive my tune??and is this a good FI plug?
06-10-2009, 05:36 PM
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anywere between 28-32 is good... got my at 28.... 750 rwhp
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06-12-2009, 11:02 AM
#10
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It's all about tuning for your combo and street/strip cars have a lot more room than race cars do when it comes to selecting plugs.
TR6s gapped at 28 running with 18 degrees of timing at 19-20psi on pump gas and meth can get you hot lapped 9.4s at 149mph in some cases.
Yes an A2W intercooler helps keep those IATs down where everthing is comfortable. In others, TR6s can be a D'ohhhhh!!! but 400rwhp sure isn't the limit to them unless you've really messed something up in a LSx combo. 
Simply dropping in colder plugs isn't always the answer. You're trading the colder plug which makes less power, all other things being equal, in the hopes that you can throw more timing or boost at it to net more power on a given fuel combination. You need to get out and tune the car to find what the sweet spot is for your combo and your power goals.
Rick
TR6s gapped at 28 running with 18 degrees of timing at 19-20psi on pump gas and meth can get you hot lapped 9.4s at 149mph in some cases.
Yes an A2W intercooler helps keep those IATs down where everthing is comfortable. In others, TR6s can be a D'ohhhhh!!! but 400rwhp sure isn't the limit to them unless you've really messed something up in a LSx combo. Simply dropping in colder plugs isn't always the answer. You're trading the colder plug which makes less power, all other things being equal, in the hopes that you can throw more timing or boost at it to net more power on a given fuel combination. You need to get out and tune the car to find what the sweet spot is for your combo and your power goals.
Rick
06-13-2009, 01:41 PM
#13
It's all about tuning for your combo and street/strip cars have a lot more room than race cars do when it comes to selecting plugs.
TR6s gapped at 28 running with 18 degrees of timing at 19-20psi on pump gas and meth can get you hot lapped 9.4s at 149mph in some cases. Yes an A2W intercooler helps keep those IATs down where everthing is comfortable. In others, TR6s can be a D'ohhhhh!!! but 400rwhp sure isn't the limit to them unless you've really messed something up in a LSx combo.
Simply dropping in colder plugs isn't always the answer. You're trading the colder plug which makes less power, all other things being equal, in the hopes that you can throw more timing or boost at it to net more power on a given fuel combination. You need to get out and tune the car to find what the sweet spot is for your combo and your power goals.
Rick
TR6s gapped at 28 running with 18 degrees of timing at 19-20psi on pump gas and meth can get you hot lapped 9.4s at 149mph in some cases.
Yes an A2W intercooler helps keep those IATs down where everthing is comfortable. In others, TR6s can be a D'ohhhhh!!! but 400rwhp sure isn't the limit to them unless you've really messed something up in a LSx combo. Simply dropping in colder plugs isn't always the answer. You're trading the colder plug which makes less power, all other things being equal, in the hopes that you can throw more timing or boost at it to net more power on a given fuel combination. You need to get out and tune the car to find what the sweet spot is for your combo and your power goals.
Rick
06-14-2009, 09:31 PM
#16
it but first hand is always better. 
