Coil on Plug

1

1300wipass

Member +
COP setup (Coil on Plug) direct coil on ignition connector

Hi Guys

a few Questions

1. is this a better option than multiple coils? (my theory is that im trying to eliminate the "wearable" items like leads, rotor etc.?)
2. is this coil physically attached to the plug?, meaning that if a plug is busted, then u basically have to replace that specific plugs coil aswell?

thanks
W
 
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T

turboflow

Member +
its individual coil packs for each plug, so u dont essentially have a ht lead comin formt he dizzy, i do believe u need to put on a crank sensor though to be able to run them
 
1

1300wipass

Member +
turboflow said:
its individual coil packs for each plug, so u dont essentially have a ht lead comin formt he dizzy, i do believe u need to put on a crank sensor though to be able to run them
Click to expand...


yes, i was hoping to go the crank sensor route, this will then lead me to my next question ... how to install or setup a crank sensor on the 4EFTE?

thanks
 
T

turboflow

Member +
i was speaking to dave burwash about it as i want to go for an uprated coild and stuff and he said it was quite simple to do, there must be some one that can do a guide for us
 
bigdoods

bigdoods

Member +
true. all the high powered starlets in australia run them if you look on their site. im sure theyd be able to assist better than the lads on here about them as they have experience with them. i havnt seen one high powered starlet on here thats caught my eye running coil packs. I have looked into this also. you need an ECU thats capable of doing this also.
 
1

1300wipass

Member +
turboflow said:
i was speaking to dave burwash about it as i want to go for an uprated coild and stuff and he said it was quite simple to do, there must be some one that can do a guide for us
Click to expand...


found 2 usefull links, it seems to be Mega Squirt specific, but the general distrubutorless info is general i think:

http://www.megamanual.com/ms2/EDIS.htm


http://www.megamanual.com/ms2/36-1.htm

came across this PDF aswell:

http://www.boostengineering.net/v/vspfiles/assets/images/how%20to%20convert%20your%20spark%20plug%20wires.pdf
 
S

starlet666

Member +
i think he means coil ON plug.... like sr20det's not like most of us aussies running individual coils..... and im still using a single msd and making big power..... 250hp (at the wheels) is still decent aims of 300 as it is not going with individual coils till i have to.... and that will only b to break 340hp i will need it then i think
 
1

1300wipass

Member +
starlet666 said:
i think he means coil ON plug.... like sr20det's not like most of us aussies running individual coils..... and im still using a single msd and making big power..... 250hp (at the wheels) is still decent aims of 300 as it is not going with individual coils till i have to.... and that will only b to break 340hp i will need it then i think
Click to expand...


yes you correct, this has no plug leads/wires, the actual coil of that specific spark plug sits directly at the top of the actual spark plug connector. Its like individual coils, but eliminating the "wires part"

Something like this:

COP1.jpg
 
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1

1300wipass

Member +
heres another example, where the spark plug would actually connect to the bottom and you can see the induvidual coils sitting directly at the top of the plug connector:

CoilOnPlug_Full.jpg
 
sx_turbo

sx_turbo

Lifer
I think (hope i am right in this) if you get the california emissions oil pump for a 5e engine they have a crankshaft sensor on them.

it should all bolt on and then you need a competent auto electrician and some standalone engine management and a competent tuner and hopefully it should all hook up
 
Fatman

Fatman

Member +
Local guy is in the process of converting to 2zz COP's, it's fairly straight forward with an aftermarket ecu. There is no inherant need to change to a crank trigger based timin control, the dual vr 24/1 dizzy sensors can still be used to control the coil on plug packs.

There are definitely advantages but the stock single coil has been proven beyond 300whp, how much further do you want to go? :p

Easier swap that will yield the same benefits for a starlet for considerably less money is converting to wasted spark. You could use the coil packs from the 4agze or another popular choice is mitsi evo based coils. I've got a pair of wasted spark coils from an ae101 levin here to use eventually on my build, I can't envision ever needing more than that.
 
Texx

Texx

Super Moderator
Fatman said:
Easier swap that will yield the same benefits for a starlet for considerably less money is converting to wasted spark. You could use the coil packs from the 4agze
Click to expand...


I tripped over these earlier moving some stuff around in the spare room, would they be of any use?

4agzecoils.jpg
 
Fatman

Fatman

Member +
Sure are if you've got an ECU to run them.. Plenty of standalones can directly fire a pair of coils. Won't be able to use a piggyback though.

Biggest advantage in multiple coils is the ability to run longer dwell at higher RPM's, can run a bigger spark gap for a given boost level.
 
spuddy

spuddy

Ulster Area Rep.
There's individual coils on my setup, no cranks sensor needed, we took the signal off the exhaust cam/rotor arm.
 
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