Re: Projected tip plugs more prone to detonation?
[Re: davenc]
#2372359
09/17/17 08:09 PM
09/17/17 08:09 PM
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Joined: Aug 2003
Posts: 43,303 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,303
Bend,OR USA
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Last edited by Cab_Burge; 09/17/17 08:10 PM.
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Projected tip plugs more prone to detonation?
[Re: davenc]
#2372401
09/17/17 09:57 PM
09/17/17 09:57 PM
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Joined: Aug 2011
Posts: 2,872 Pattison Texas
CSK
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master
Joined: Aug 2011
Posts: 2,872
Pattison Texas
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I use this type in my 512, they work great. the spark is not shrouded by the ground strap.
Last edited by csk; 09/17/17 09:59 PM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Projected tip plugs more prone to detonation?
[Re: mopar dave]
#2372498
09/18/17 01:36 AM
09/18/17 01:36 AM
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Joined: Aug 2011
Posts: 2,872 Pattison Texas
CSK
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Pattison Texas
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those are interesting. whats the part number on those? bkr6ek & a step hotter bkr5ek NGK I run the 5 in my 9.5to1 512 street car. 4000 miles on them & some track passes, no missfires & they still look great. no signs of detonation.
Last edited by csk; 09/18/17 01:41 AM.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Projected tip plugs more prone to detonation?
[Re: davenc]
#2372541
09/18/17 03:17 AM
09/18/17 03:17 AM
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Joined: Dec 2007
Posts: 12,592 Great Neck,LI,new york
hemi-itis
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I Live Here
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Great Neck,LI,new york
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Regular NGKs at $20 a set.Especially when you reading plugs!
HEMI-ITIS has no cure. My condition is fully BLOWN!!
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Re: Projected tip plugs more prone to detonation?
[Re: CSK]
#2372663
09/18/17 12:33 PM
09/18/17 12:33 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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those are interesting. whats the part number on those? bkr6ek & a step hotter bkr5ek NGK I run the 5 in my 9.5to1 512 street car. 4000 miles on them & some track passes, no missfires & they still look great. no signs of detonation. In NGK's, the higher the number the COLDER the plug unless that weird sukka is different...........
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Projected tip plugs more prone to detonation?
[Re: Thumperdart]
#2372702
09/18/17 01:34 PM
09/18/17 01:34 PM
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Joined: Aug 2011
Posts: 2,872 Pattison Texas
CSK
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master
Joined: Aug 2011
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Pattison Texas
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those are interesting. whats the part number on those? bkr6ek & a step hotter bkr5ek NGK I run the 5 in my 9.5to1 512 street car. 4000 miles on them & some track passes, no missfires & they still look great. no signs of detonation. In NGK's, the higher the number the COLDER the plug unless that weird sukka is different........... yep,they follow the same as all NGK.
1968 Charger COLD A/C Hilborn EFI 512ci 9.7 compression, Stealth heads, 4.10 gear A518 ODtrans 4100lb,10.93 full street car trim 2020 T/A 392 Stock 11.79 @ 114.5
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Re: Projected tip plugs more prone to detonation?
[Re: BradH]
#2372804
09/18/17 04:26 PM
09/18/17 04:26 PM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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I Live Here
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State of confusion
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An NGK "5" would scare me. I'm not sure I'd use anything hotter than a "7" even for a regular street car, but a lot of that is based on my experience with too-hot heat ranges used in motorcycles. Went 9.79 @ 135+ several years ago first pass ever w/the new combo and a # 7 and my carb was lean as in the 14's up top and saw a tiny bit of peppering so now I run 8's at 12.1.1 comp.........
Last edited by Thumperdart; 09/18/17 04:27 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Projected tip plugs more prone to detonation?
[Re: AndyF]
#2372983
09/18/17 10:00 PM
09/18/17 10:00 PM
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Joined: Jan 2005
Posts: 2,540 Milwaukee WI
TRENDZ
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Milwaukee WI
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I'm sure I've posted this picture before but here are three plugs I tested in my 470 with the Trick Flow heads. These are all the same heat range and the same brand. Standard, projected and super projected. I use the super projected just because it seems like it should be better but I did not notice any difference on the dyno between the three plugs. Sure would like to see a comparative timing strap read on those three plugs after a good pull. Sure seems that the projected plugs would be risky in a power adder situation.
"use it 'till it breaks, replace as needed"
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Re: Projected tip plugs more prone to detonation?
[Re: davenc]
#2372985
09/18/17 10:07 PM
09/18/17 10:07 PM
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Joined: Mar 2009
Posts: 2,475 Sydney,Australia
tex013
top fuel
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top fuel
Joined: Mar 2009
Posts: 2,475
Sydney,Australia
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I run the NGK BKR6E in my 505 , same plug in my 440 . 505 is 11:1. Never any issues . Under 10:1 NA I would run -5 These are projected plugs. Only thing with NGK's is they hate being over fuelled .
Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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Re: Projected tip plugs more prone to detonation?
[Re: tex013]
#2373092
09/19/17 01:28 AM
09/19/17 01:28 AM
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Joined: Jul 2004
Posts: 19,318 State of confusion
Thumperdart
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I Live Here
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State of confusion
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I run the NGK BKR6E in my 505 , same plug in my 440 . 505 is 11:1. Never any issues . Under 10:1 NA I would run -5 These are projected plugs. Only thing with NGK's is they hate being over fuelled .
Tex That's good info and I like the fact that you race it and get real world tested info which is helpful for some of us in a similar scenario.......Dyno stuff for sure has it's place especially a chassis dyno in a real world load zone simulating going down the street or track but, I still have tried adding more fuel, timing air pressure and launch/suspension settings to get more out of my car and a few others along the way............
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....
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Re: Projected tip plugs more prone to detonation?
[Re: Thumperdart]
#2373099
09/19/17 01:38 AM
09/19/17 01:38 AM
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Joined: Mar 2009
Posts: 2,475 Sydney,Australia
tex013
top fuel
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top fuel
Joined: Mar 2009
Posts: 2,475
Sydney,Australia
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I run the NGK BKR6E in my 505 , same plug in my 440 . 505 is 11:1. Never any issues . Under 10:1 NA I would run -5 These are projected plugs. Only thing with NGK's is they hate being over fuelled .
Tex That's good info and I like the fact that you race it and get real world tested info which is helpful for some of us in a similar scenario.......Dyno stuff for sure has it's place especially a chassis dyno in a real world load zone simulating going down the street or track but, I still have tried adding more fuel, timing air pressure and launch/suspension settings to get more out of my car and a few others along the way............ Maate ! I am only a slowpoke compared with most on here . Tex
New best ET 10.259@129.65 . New best MPH 130.32 Finally fitted a solid cam, stepped it up a bit more 3690lbs through the mufflers New World block 3780lbs 10.278@130.80 . Wowser 10.253@130.24 footbraking from 1500rpm Power by Tex's Automotive
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