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Enthusiast ![]() ![]() Joined Aug 15, '10 From Nevis, West Indies Currently Offline Reputation: 0 (0%) ![]() |
If I raise boost to 14psi,do you recommend i get colder plugs??
-------------------- 1994 Toyota Celica GT-Four ST205 Turbo 4WD, Black
Nevis, West Indies |
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![]() Enthusiast ![]() ![]() ![]() ![]() ![]() Joined Feb 11, '08 From Auckland, New Zealand Currently Offline Reputation: 0 (0%) ![]() |
Stock for a GT4 is NGK BKR6EP-8, It's a long life platinum plug with a 0.8mm gap and heat range 6.
An upgrade into the next step colder heat range would be the BKR7EIX which has a 0.8mm gap and a heat range of 7. From NGK QUOTE A rule of thumb is, one heat range colder per modification or one heat range colder for every 75–100hp you increase. So if you're taking your car up to 300+WHP, It might be a good idea to get the BKR7EIX, This is what I'm going to be doing. EIX is the Iridium IX series. They don't make a laser platinum in the 7 heat range for our engines -------------------- Mike W
1996 Toyota Celica ST205 GT-FOUR GT2860RS turbine, TiAL mvr44, JE 86.5φ piston, Clutchmasters FX400, APEX P-FC 269awhp / 273ft-lbs |
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