NGK spark plug heat range question
05-12-2008, 11:47 PM
#11
Registered
Interesting. I was running r43xls last yr NA. Per Laz's method it looks like 2 turns of color on those plugs, so a tad cool. This yr I am running 4lb boost so I wanted to go 2 sizes cooler than the 43s to 41s. Those I could not find, so I went to the NGK site and crossed it to an NGK plug. I found the equivilant plug to be a BPR5EA - L - 11 per their site. It seems that 8s would be too cool, but I don't know. Take it for what it is worth LS!.
Man, a #5 seems REALLY hot for a blower motor. Sure the cross reference is correct?
Darrell.
05-13-2008, 04:00 PM
#12
Registered
Join Date: Nov 2001
Location: Pennsylvania
Posts: 3,385
Likes: 0
Received 0 Likes
on
0 Posts
.
05-13-2008, 06:40 PM
#13
Registered
No problem at all. I was just looking at that #5 and thinking, I've never ran a plug that hot in any aplication before.
Darrell.
05-15-2008, 08:53 AM
#14
Registered
Thread Starter
05-15-2008, 08:56 AM
#15
Registered
Thread Starter
Thanks for all the input guys. I talked with the ngk tech line and they suggested I start off with a 6 and go from there. I actually ended up getting 7's to start with, but I have a feeling I may end up with 8s in there.
Frank
Frank
05-15-2008, 08:59 AM
#16
Where To
VIP Member
Join Date: Nov 2001
Location: Alexandria Bay, NY 1000 Islands
Posts: 2,517
Likes: 0
Received 3 Likes
on
3 Posts
I am running a Crane HI-6M and set initial at 16* the box puts in an additional 20 (all in) at 2500 rpms for a total of 36*.
That was on the advice of Bob Teague. Never a problem after 125 hours of running!
PM me your number if you want to talk!
Dave
That was on the advice of Bob Teague. Never a problem after 125 hours of running!
PM me your number if you want to talk!
Dave
__________________
Air, Sea, and Land...Exploring the planet in 3-D!
Air, Sea, and Land...Exploring the planet in 3-D!
05-15-2008, 01:08 PM
#17
SORE MEMBER
Platinum Member
Join Date: Apr 2004
Location: 29°50'49.74"N 95° 5'17.55"W.......TEXAS
Posts: 6,989
Likes: 0
Received 1 Like
on
1 Post
Tried 8's and found them a little more prone to foul, though they would always clear out when I made it out of the first no-wake
