Spark Plug Gap and ING Timing
#1
Spark Plug Gap and ING Timing
Ok folks started this thread to keep all the info in one spot instead of in 3 different threads.
If anyone has a Scan Guage in their car and wants to help with this research here goes. Already got some info from people here, but the more the better
the info needed from the SG is ING timing @ RPMS , auto/manual, Type of plug and what are they gapped at , octane you uses , ethanol ( if above 10%) temp ( air and coolant ).
This is becoming very interesting and you might all be surprised at what I am finding. Soon as I get enough info I will be passing along what I have found.
You can post the info here or PM it to me ( incase your shy )
If anyone has a Scan Guage in their car and wants to help with this research here goes. Already got some info from people here, but the more the better
the info needed from the SG is ING timing @ RPMS , auto/manual, Type of plug and what are they gapped at , octane you uses , ethanol ( if above 10%) temp ( air and coolant ).
This is becoming very interesting and you might all be surprised at what I am finding. Soon as I get enough info I will be passing along what I have found.
You can post the info here or PM it to me ( incase your shy )
#3
Here is some Scangauge related info: http://www.clubxb.com/forums/f2/scan...ead-25357.html
At idle the timing on mine usually shows as 4BTDC. Accelerating is around 19BTDC. The highest advance i've seen is 38BTDC- on high RPM cruise, very light throttle.
Auto trans BTW.
At idle the timing on mine usually shows as 4BTDC. Accelerating is around 19BTDC. The highest advance i've seen is 38BTDC- on high RPM cruise, very light throttle.
Auto trans BTW.
#5
One thing I would like to know is...
Why are people reccomending .044 gapped Iridium plugs and saying to get Denso or NGK Iridiums gapped at .044 when if you go to the Denso website and select 2006 xB Iridium it shows the correct plug as .027?
Is there some advantage to be had with the more aggressive gap?
Why are people reccomending .044 gapped Iridium plugs and saying to get Denso or NGK Iridiums gapped at .044 when if you go to the Denso website and select 2006 xB Iridium it shows the correct plug as .027?
Is there some advantage to be had with the more aggressive gap?
#6
Originally Posted by Snoodge
One thing I would like to know is...
Why are people reccomending .044 gapped Iridium plugs and saying to get Denso or NGK Iridiums gapped at .044 when if you go to the Denso website and select 2006 xB Iridium it shows the correct plug as .027?
Is there some advantage to be had with the more aggressive gap?
Why are people reccomending .044 gapped Iridium plugs and saying to get Denso or NGK Iridiums gapped at .044 when if you go to the Denso website and select 2006 xB Iridium it shows the correct plug as .027?
Is there some advantage to be had with the more aggressive gap?
#10
Senior Member
Fail, INC
Club One
SL Member
Join Date: Nov 2004
Location: What's in your Box...
Posts: 14,930
interesting read...
did you use indexing on the plugs?
Also just confirms what I have always said.... I hvae almost 90,000 miles on Denso iridium plugs and the only reason I use them is to get longer change intervals since I drive 25,000 plus miles a year.........
No more hp
No more mpg
Dunno how many times I have stated this
but this interesting about Tomas's gap as I always just used the Denso recommended gaps........
did you use indexing on the plugs?
Also just confirms what I have always said.... I hvae almost 90,000 miles on Denso iridium plugs and the only reason I use them is to get longer change intervals since I drive 25,000 plus miles a year.........
No more hp
No more mpg
Dunno how many times I have stated this
but this interesting about Tomas's gap as I always just used the Denso recommended gaps........
#12
Interesting seems reasonable as the computers can fix way more crap than we give them credit for! They work overtime keeping even the most out of spec cars within guidelines. The one thing that I have seen is that a higher quality like Iridium plug will last longer physically where the low end models will start to round off the electrode sooner.
#14
Originally Posted by frogbox
What's my next project gonns be ? HMMMMMMM.........
#15
Originally Posted by spr0k3t
Originally Posted by frogbox
What's my next project gonns be ? HMMMMMMM.........
#16
Originally Posted by spr0k3t
Originally Posted by frogbox
What's my next project gonns be ? HMMMMMMM.........
An areodynamic brick
#18
Originally Posted by Sciond
how about sri vs cai
throttle body spacer
how many lick to get to the center of a Tootsie Pop
throttle body spacer
how many lick to get to the center of a Tootsie Pop
SRI vs. CAI been done
Tootsie Pop , my dentist didn't approve, actually he wanted to get more money after.
#19
Senior Member
Fail, INC
Club One
SL Member
Join Date: Nov 2004
Location: What's in your Box...
Posts: 14,930
Originally Posted by frogbox
Originally Posted by Sciond
how about sri vs cai
throttle body spacer
how many lick to get to the center of a Tootsie Pop
throttle body spacer
how many lick to get to the center of a Tootsie Pop
SRI vs. CAI been done
Tootsie Pop , my dentist didn't approve, actually he wanted to get more money after.
Sri vs cai..lots of different choices since done
#20
this is interesting, im doing my complete ignition map on my F/I tc.. right now im like around 39-44 on 2750-3500 rpms, idle is around 18-22 cold start and 14-18 on hot idle depending on intake and coolant temp.. using 2 step colder NGK iridium gapped at 0.034"
Thread
Thread Starter
Forum
Replies
Last Post
my06tc
PPC: Engine / Drivetrain
10
06-25-2015 12:18 AM
daniinpitt
Scion xB 2nd-Gen Owners Lounge
1
04-04-2015 08:07 PM
cid_mcdp
Maintenance & Car Care
4
01-05-2015 02:45 PM
06ScionTc5sp1
Maintenance & Car Care
18
12-21-2014 07:21 AM