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08 legacy turbo spark plugs
Posted: January 7th, 2017, 12:05 pm
by nutsman
What is the best spark plugs to use on a stock 08 subaru legacy turbo NGK LFR7AIX(one step colder) or ILFR6B(stock) ?
Thanks.........
Re: 08 legacy turbo spark plugs
Posted: January 8th, 2017, 7:15 pm
by legacyspecb
The one step colder option..especially if your car is tuned and accounting for our less and than ideal fuel spec.
Re: RE: Re: 08 legacy turbo spark plugs
Posted: January 8th, 2017, 7:37 pm
by racedriverpro
legacyspecb wrote:The one step colder option..especially if your car is tuned and accounting for our less and than ideal fuel spec.
Correct. Nice to see u around spec b
Re: 08 legacy turbo spark plugs
Posted: January 10th, 2017, 4:21 pm
by legacyspecb
^^ yea ah try 2 visit ever so often
Re: 08 legacy turbo spark plugs
Posted: January 31st, 2017, 10:16 am
by VexXx Dogg
Stick to the ILFR6B. learned the hard way. It can take a lot of upgrades, even added boost.
Went thru two sets of the LFR7's in a couple weeks. It caused bad breakup on WOT acceleration, each time I just ate the cost.
Re: 08 legacy turbo spark plugs
Posted: January 31st, 2017, 6:05 pm
by legacyspecb
^^ Sounds like your car has other problems..probably not plug related. Your results seem very untypical of those who use one step colder plugs.
Re: 08 legacy turbo spark plugs
Posted: June 19th, 2017, 7:52 pm
by belalegosi
VexXx Dogg wrote:Stick to the ILFR6B. learned the hard way. It can take a lot of upgrades, even added boost.
Went thru two sets of the LFR7's in a couple weeks. It caused bad breakup on WOT acceleration, each time I just ate the cost.
Were you messing with the plug gap on the LFR7AIX?
Re: 08 legacy turbo spark plugs
Posted: June 19th, 2017, 8:35 pm
by VexXx Dogg
belalegosi wrote:VexXx Dogg wrote:Stick to the ILFR6B. learned the hard way. It can take a lot of upgrades, even added boost.
Went thru two sets of the LFR7's in a couple weeks. It caused bad breakup on WOT acceleration, each time I just ate the cost.
Were you messing with the plug gap on the LFR7AIX?
Tried them out of the box, breakup. Confirmed gap to manuf recommendations, breakup.
ILFR's went straight in, and caused no issues. I used these up to 18PSI on a Hybrid VF37/20G turbo up over 350 whp.