AEM Pencil coil on LS engines
Thread Starter
On The Tree
Joined: Apr 2007
Posts: 126
Likes: 1
From: SE, AZ
AEM Pencil coil on LS engines Anyone replaced the coil on plus {stock} with the AEM Pencil coil?
http://www.aempower.com/ViewCategory...CategoryID=212
http://www.aempower.com/ViewCategory...CategoryID=212
no need, stock coils are powering most of the 7 sec cars.
those coils were designed for OHC motors that where originally set up for waste spark ignition and want to go to s COP setup, they look to be copies of the Chrysler 300m coils used by the Mitsu and Honda guys.
those coils were designed for OHC motors that where originally set up for waste spark ignition and want to go to s COP setup, they look to be copies of the Chrysler 300m coils used by the Mitsu and Honda guys.
FormerVendor
Joined: Jul 2008
Posts: 77
Likes: 0
I can help out with this one.
The company I work for is currently in the works developing a coil for the LS engine and we have similar coils to the AEM pencil coil. The pencil coils will not clear headers, will not fit properly and will not wire up at all.
GM uses "smart" coils which have built in ignitors. The pencil coils in question are dummy coils which do not have the circuitry required to run off the generals ignition system. In order to properly utilize a dummy coil you would need a stand alone inductive ignition system or a CDI box. Neither of which will be easy to adapt properly.
Also, when choosing coils it's important to match the coils with the type of ignition box your using. Typically coils meant for an inductive ignition don't work very well with a CDI ignition and vice versa.
The company I work for is currently in the works developing a coil for the LS engine and we have similar coils to the AEM pencil coil. The pencil coils will not clear headers, will not fit properly and will not wire up at all.
GM uses "smart" coils which have built in ignitors. The pencil coils in question are dummy coils which do not have the circuitry required to run off the generals ignition system. In order to properly utilize a dummy coil you would need a stand alone inductive ignition system or a CDI box. Neither of which will be easy to adapt properly.
Also, when choosing coils it's important to match the coils with the type of ignition box your using. Typically coils meant for an inductive ignition don't work very well with a CDI ignition and vice versa.
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Oh NOOOOO!!!! Stock is BAD!!!! 
Personally, i'll stick with the $28 each OEM coils that we're running 7.50's@190 with.
Find some of the quickest LSx cars and ask them what they run.
Personally, i'll stick with the $28 each OEM coils that we're running 7.50's@190 with.
Find some of the quickest LSx cars and ask them what they run.
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