what plugs and gap to run

[xms]

I was wondering whats the best plug to run, ngk coppers or v power and what would be a good gap to set, for 18 psi ?

 

[IJ.]

Full mod list would help as 18psi on a ct26 is very different to 18psi on a gt45.

 

[suprahero]

I don't know what the best plug is, but I run the NGK 4644's and I love them. Mine are gapped lower than most I would think. Mine are currently gapped @ .020 or as close to that as I can get them. I highly doubt you'll need to go that low, but as Ian posted, we need to see your mods.

 

[Scot]

I could use some help with plug selection.... running 1.3 bar or so.....

 

[xms]

Full mod list would help as 18psi on a ct26 is very different to 18psi on a gt45.

Forgot here is the mod list:
sp 66 turbo with external hks waste gate,hks dragger
built bottom end crower rods,je piston .060 mm cometic head gasket
arp head stud,
hks dli and msd 8.5 mm wires
front mount hks bov
innovative wideband
twin 255 flp 8 an feed 6 an return aeromotive regulator
greddy boost controller
rc 550 inj
running on stock ecm with safc,lex meter

 

[IJ.]

I'd try NGK #7 Coppers @ 30 thou to start then see if it blows the spark out around Tq peak (5200 rpm) and drop the gap if needed.

 

[xms]

I'd try NGK #7 Coppers @ 30 thou to start then see if it blows the spark out around Tq peak (5200 rpm) and drop the gap if needed.

thx IJ

 

[suprahero]

How much can you over bore a 7m?


.060mm............:aigo:

 

[IJ.]

Think that might be "86mm bore Cometic MHG" ??

.060mm is 23 thou.

 

[suprahero]

When I first read it I thought he was saying he had a .060 mm head gasket, then I was like, no way. I figured it had to be bored .060, but I didn't know if that was possible or not. My 2jz is bored .040 but I wouldn't go bigger than that.

 

[xms]

When I first read it I thought he was saying he had a .060 mm head gasket, then I was like, no way. I figured it had to be bored .060, but I didn't know if that was possible or not. My 2jz is bored .040 but I wouldn't go bigger than that.

NO NO my block is 20 over and the .060 is the thickness of my gasket from cometic the thickest one they offered

 

[IJ.]

NO NO my block is 20 over and the .060 is the thickness of my gasket from cometic the thickest one they offered

Cometic do a 3mm MHG, if it's .06" that's 1.5mm?

 

[xms]

Cometic do a 3mm MHG, if it's .06" that's 1.5mm?

just looked it up its a 2.0mm from titan motorsports sorry for the confusion