spark plug heat range..

[redvictor]

i used Autolite AR 3394 on the dyno and a couple of them seemed to foul up.... i used to use these with nitrous with no problems but i reckon they might be a little cold for the turbos.......Don't forget i need to use these on the street also as they are a phuckers to get out... any suggestions on heat range? i can get NGK's or Autolite.Also anyone use the Brisk plugs? any good? or just the usual "magic" fix?

[Monty Mikho]

I have heard negative stuff about the Brisk plugs.. Personally Im gonna stick with the NGK stuff.. Always been the easiest to read for me. Did you try cranking some timing into the motor while at low RPM? This worked great for me while crusing in the staging lanes.. I ran 29* at WOT on motor and 40* below 3000 RPM..

[redvictor]

thanks for the reply Monty....i have given it 45 deg at idle because it seemed to like it on the dyno.....it'll all be changing i guess now i've had a new cam from Jay and some bigger exhaust housings....I must admit i do like NGK's...I just wondered if i could get away with NGK 6's or has it got to be 7's or 8's?

[Monty Mikho]

Not sure on that. I will be using a -10 NGK and cranking timing into it like I did with nitrous..

[Jim Monson]

I use the NGK 10's too. Same as the nitrous plug.

[redvictor]

thing is you guys dont drive the cars on the road....-10 are great for racing but too cold for highway use.I need something that will do double duty as believe me,No5 and No 6 plugs are not coming out without a fight.....lol

[Monty Mikho]

Monson is gonna get pissed when he reads this.. I believe he took a 10+ mile drive last summer without any problems..

[Jim Monson]

Monson is gonna get pissed when he reads this.. I believe he took a 10+ mile drive last summer without any problems..

Yea, I went for a little cruize with no problems. :-D

[redvictor]

lol...i mean UK roads...you know,with corners,traffic lights,roundabouts,hills etc...

[Jim Monson]

lol...i mean UK roads...you know,with corners,traffic lights,roundabouts,hills etc...

You forgot to add the 20 minute traffic jam I sat in. Motor never even warmed up. :p :p :p :p :p :p :p

[Monty Mikho]

Please sent Red a picture of Michigan roads please!!!

[Jim Monson]

http://www.getodd.com/news/50100/hole3sm.jpg

http://www.mlui.org/images/pothole1.jpg

http://a.abclocal.go.com/images/wjrt/wjrt_021902_potholey.jpg

http://gcrc.org/images/Photo_Page_Pothole_One%20Down%20One%20to%20Go.jpg

[redvictor]

WOW,I wish we had roads that good here.... that's a racetrack surface surely......