Quote:
Originally Posted by iqraceworks
When I was first getting my costume tune done a few years ago, the tuner cranked it up to 27psi....after I made a pull and saw it get that high, I had him bump it down to 25psi...and that's where it stayed.
BUT...even at 27psi on E40 fuel, the OEM Delphi coils didn't skip a beat...no misfires or other issues (even though it was just a single pull). And I think the Eldors are "supposed" to have a little more output than the Delphis...but who knows. Not sure why so many people have issues with the OEM coils.....
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Headroom is important too....
Just like a fuel system you want to have more than you need for the normal case.
Perhaps the temperature is higher one day, etc and then you have a coil let out.
I feel it is better to have more than you need and not use it. The cost isn't that high to upgrade coils compared to other upgrades. Over extended use it is less likely to foul plugs with the larger gaps that they allow, etc.
Just something to consider.
-Rich