Author Topic: dumb ingnition system question  (Read 272 times)

T/A81blue

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dumb ingnition system question
« on: February 14, 2018, 09:06:32 AM »
I have a 1980 trans am with a 1973 455 motor with 4x heads, as far as I know the motor is near stock and not high performance. I would like to start tuning it ...it has an HEI with and accel super coil and accel plugs...my question is , what spark plugs , wires and or cap+rotor should i look into getting for this motor?

70RAIV455

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Re: dumb ingnition system question
« Reply #1 on: February 14, 2018, 09:41:10 AM »
What you have is fine.
You can dial in a Faster Advance curve.
To see big gains a camshaft swap is better.

oldskool

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Re: dumb ingnition system question
« Reply #2 on: February 14, 2018, 02:05:10 PM »
"...my question is , what spark plugs , wires and or cap+rotor should i look into getting for this motor? "

(1) Accel plugs were OK, back in the '70-'80's when I used 'em. Lots of guys on the PY forum have mentioned using NGK plugs, and many online forums say that NGK is probably the best quality plug made today. The only plug failure I ever had was a Champion.

https://butlerperformance.com/c-1234727-ignition-electrical-spark-plugs.html

https://butlerperformance.com/c-1291214-ignition-electrical-spark-plugs-plugs-for72-and-later-cast-iron-heads.html

https://www.summitracing.com/search/brand/ngk-spark-plugs/part-type/spark-plugs/make/pontiac/engine-size/7-5l-455/wrench-diameter/5-8-in?N=400395%2B4294926774%2B4294951349%2B4294951351%2B4294926748&gnview=Horizontal&SortBy=BestKeywordMatch&SortOrder=Ascending

(2) Lots of guys like the Taylor wires which have very positive terminals, & boots with grips which makes pulling them off the plugs much easier. The Spiro-Pro 8mm sets come in several colors and with either straight, 135°, or 90° boots. I think most prefer straight boots for Pontiac V8's. I prefer the universal sets, so that I can have longer wires to make removing the valve covers easier.

https://www.summitracing.com/search/assembled/no/universal/yes/engine-type/v8?N=4294951296%2B4294951518%2B4294951399&gnview=Horizontal&SortBy=BestKeywordMatch&SortOrder=Ascending&keyword=Taylor%20Spiro-Pro%20Spark%20Plug%20Wire%20Sets

Accel also makes some higher cost wires with long straight grips, which some like.

https://www.ebay.com/itm/SPARK-PLUG-WIRES-8033-VARI-ANGLE-BOOT-HEI-SOCKET-STYLE-CAP-8-8-UNIVERSAL-FIT/332526124298?epid=169282433&hash=item4d6c19fd0a:g:luEAAOSwkNtaYkT7

https://www.amazon.com/ACCEL-8033-8-8mm-Spiral-Universal/dp/B000BWC686

http://www.jegs.com/i/Accel/110/8033/10002/-1

(3) My current HEI has a DUI brand cap/coil/rotor. I used Accel parts on all my points type dist. I think the main thing is to make sure the cap & rotor has brass inserts. I assume that many, if not most caps/rotors are now made in China. Not sure tho.

https://www.summitracing.com/parts/sum-g5226/overview/

http://www.jegs.com/i/JEGS-Performance-Products/555/40400/10002/-1

https://www.summitracing.com/parts/dui-12000bl/overview/

https://www.summitracing.com/parts/msd-8416/overview/

https://www.summitracing.com/parts/pnx-d4002/overview/

https://www.summitracing.com/parts/pro-66947bc/overview/

https://www.summitracing.com/parts/tay-918122/overview/



« Last Edit: February 14, 2018, 04:52:55 PM by oldskool »

firebirdparts

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Re: dumb ingnition system question
« Reply #3 on: February 14, 2018, 09:55:36 PM »
My only advice about plugs is use the standard material (sometimes the makes called them "copper plugs").  Avoid any of the iridium or platinum stuff.     
I want to be like Paul Kenny when I grow up
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Re: dumb ingnition system question
« Reply #3 on: February 14, 2018, 09:55:36 PM »
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