Is200 turbo spark plugs
Is200 turbo spark plugs
pauls_is200
01-10-2019, 09:23 AM #1Hey people I now have my car running aem fic6, apexi avcr boost controller. Its running at 210bhp at the wheels at 0.4 bar. So I am now looking at updating the spark plugs. Which one would you go for. Also need help on a fuel return line and bits for that. So I can put my 550cc injectors in before I take it down for final mapping as I had a boost drop off
![[Image: LexuS-Copy.jpg]](http://i65.photobucket.com/albums/h204/Sparkystav/LexuS-Copy.jpg)
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
Sparkystav
01-10-2019, 12:34 PM #3id agree with Stix, i run a different plug (NGK BKR7EIX) but ive got a bit more boost
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
pauls_is200
01-10-2019, 01:48 PM #4Stav the ones you have are alot cheaper. Is it ok to just put them in. I want to run 250bhp.
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
Sparkystav
01-10-2019, 02:52 PM #5just been looking and their the same heat range as the IK22's so yeah theyll be fine mate
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
It's not totally down to boost levels (although obviously higher boost can blow the spark) but the air is forced in to the cylinders quite smoothly and progressively with a supercharger where it's not always with a turbo.
Stock plugs in an IS are IK20 (grade 6), supercharger guys use an IK22 which is a grade 7 plug. I'd assume you want a grade 7 (like Stav), you wouldn't normally go up to a grade 8 at that level of power.
I'll probably be outspoken but I won't put iridium plugs in a turbo car... especially one that wasn't built with a turbo in the first place. Slightest bit of knock or det and you can lose the tip off the plug and it's rebuild time. Copper plugs make a much fatter spark anyway. But you do have to replace them every 5,000 miles unlike iridium ones which can do 30,000.
It's not totally down to boost levels (although obviously higher boost can blow the spark) but the air is forced in to the cylinders quite smoothly and progressively with a supercharger where it's not always with a turbo.
Stock plugs in an IS are IK20 (grade 6), supercharger guys use an IK22 which is a grade 7 plug. I'd assume you want a grade 7 (like Stav), you wouldn't normally go up to a grade 8 at that level of power.
toxo I'll probably be outspoken but I won't put iridium plugs in a turbo car... especially one that wasn't built with a turbo in the first place. Slightest bit of knock or det and you can lose the tip off the plug and it's rebuild time. Copper plugs make a much fatter spark anyway. But you do have to replace them every 5,000 miles unlike iridium ones which can do 30,000.
It's not totally down to boost levels (although obviously higher boost can blow the spark) but the air is forced in to the cylinders quite smoothly and progressively with a supercharger where it's not always with a turbo.
Stock plugs in an IS are IK20 (grade 6), supercharger guys use an IK22 which is a grade 7 plug. I'd assume you want a grade 7 (like Stav), you wouldn't normally go up to a grade 8 at that level of power.
thats why i changed to the NGK, it was recommended as i was blowing out the spark when they originally tried to go to 1.2 bar
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
Sparkystav
04-10-2019, 12:06 PM #8toxo I'll probably be outspoken but I won't put iridium plugs in a turbo car... especially one that wasn't built with a turbo in the first place. Slightest bit of knock or det and you can lose the tip off the plug and it's rebuild time. Copper plugs make a much fatter spark anyway. But you do have to replace them every 5,000 miles unlike iridium ones which can do 30,000.
It's not totally down to boost levels (although obviously higher boost can blow the spark) but the air is forced in to the cylinders quite smoothly and progressively with a supercharger where it's not always with a turbo.
Stock plugs in an IS are IK20 (grade 6), supercharger guys use an IK22 which is a grade 7 plug. I'd assume you want a grade 7 (like Stav), you wouldn't normally go up to a grade 8 at that level of power.
thats why i changed to the NGK, it was recommended as i was blowing out the spark when they originally tried to go to 1.2 bar
Read my thread here: The Evolution of my Turbo Lexus from NA-Supercharged-Twin Turbo-Massive Single
Please leave your comments.
- If you get detonation, there's less chance of engine damage
- When tuning, the plugs can get fouled (or partially fouled) by rich/lean running while they tune it up. Why waste a decent set of IK22's when you can get some copper ones for a few quid and throw them away after the session?
Just to throw in something left-wing, have you thought about runnign copper plugs when getting the car tuned? Two main benefits..
- If you get detonation, there's less chance of engine damage
- When tuning, the plugs can get fouled (or partially fouled) by rich/lean running while they tune it up. Why waste a decent set of IK22's when you can get some copper ones for a few quid and throw them away after the session?
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