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Plug Heat Range on E85

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With iron heads and e-85 I would use Autolite AR-133 0r AR-134

Nick , any issues with the 86-87 ECM with powerlogger and non-resistor plugs ? I was told that someone had problems with the ECM acting up ( resetting) when using non-resistor plugs . I just put a set of AR133's in as per your recommendation . Thanks , Sam
 
Dynoman, I have seen some wit issues and others with no issue. If you have issues then try a different plug.
 
Projected plug with resistor
Non projected plug and non resistor
Big dollar ($45ea) plug for non projected and resistor
Pick the poison
 
Ok I have to ask because I'm a race car newb. What is the fascination with a solid core "race" plug?
 
Nick , any issues with the 86-87 ECM with powerlogger and non-resistor plugs ? I was told that someone had problems with the ECM acting up ( resetting) when using non-resistor plugs . I just put a set of AR133's in as per your recommendation . Thanks , Sam
You may be talking about me. Here is a link to my thread. If you actually read through it you will see there were more people that figured out they were having the same exact problem I was having and the fix for them was the same as me. Back to resistor core plugs. I use a non-projected tip plug NGK YR5 but I'm also on stock heads and the OP is not...

http://www.turbobuick.com/forums/index.php?threads/419814/
 
I found this plug from Yellowbullet thread. resistor type plug and non projected tip and $5ea
R6252E-9

Nevermind....Not the 5/8'' hex
 
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Found a plug that works on TA heads that is resistor and does not cost a fortune. It is a NGK, resistor, non-projected and in the 8 heat range. I posted this in achalmersman's previous thread:

I found a plug that might work. I had a new engine built for me with the TA SI aluminum heads. I wanted a resistor plug that closely matched what was recommended by TA. I searched pretty deep on this board and elsewhere. From a post on this board, I finally found that norbs had found an NGK BCR8ES (stock number 5430) plug with the right characteristics (Thank you NORBS!) :
B= 14mm thread
C= 5/8" hex head non projected tip
R= Internal Resistor
8= heat range
E=3/4" reach gasketed
S= standard core electrode. non v groove


http://www.turbobuick.com/forums/threads/spark-plugs.347724/#post-2783801

They are a real b***h to find in the US. Finally found a source here and ordered 6:

http://www.ninjaperformance.com/ngk-bcr8es-non-projected-tip-resistor-set-p-219374.html

Waiting to test them after I get the engine installed.

Hope this helps someone.


 
I bought a set and they are working great. My SM is not crashing every time I go WOT, so I am pretty much stuck with this plug and heat range.
Better than freaking out my ECM and blowing the motor tho.
 
I bought a set and they are working great. My SM is not crashing every time I go WOT, so I am pretty much stuck with this plug and heat range.
Better than freaking out my ECM and blowing the motor tho.
Where did you get them ?
 
Found a plug that works on TA heads that is resistor and does not cost a fortune. It is a NGK, resistor, non-projected and in the 8 heat range. I posted this in achalmersman's previous thread:

I found a plug that might work. I had a new engine built for me with the TA SI aluminum heads. I wanted a resistor plug that closely matched what was recommended by TA. I searched pretty deep on this board and elsewhere. From a post on this board, I finally found that norbs had found an NGK BCR8ES (stock number 5430) plug with the right characteristics (Thank you NORBS!) :
B= 14mm thread
C= 5/8" hex head non projected tip
R= Internal Resistor
8= heat range
E=3/4" reach gasketed
S= standard core electrode. non v groove

http://www.turbobuick.com/forums/threads/spark-plugs.347724/#post-2783801

They are a real b***h to find in the US. Finally found a source here and ordered 6:

http://www.ninjaperformance.com/ngk-bcr8es-non-projected-tip-resistor-set-p-219374.html

Waiting to test them after I get the engine installed.

Hope this helps someone.
This is my new favorite. Working very well for me so far! Thanks for the recommendation.
image.jpg
 
Cool! Looks like you ordered a few of them! (y)
Looking forward to getting my engine in my car and giving them a go.

Thanks for the feedback.
M
 
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