Questions about coil on plug ignition

[talontsiboy24]

Is this true: difference between 2.7 and 3.5 coils is that 3.5 coils are higher output coils and used for 500+ hp applications 2.7 are good up to 500 hp? im running about 350whp now so id go with the 2.7 coils right?

also are cop better then wires and stock coil pack? i was thinkin to buy a cop because my stock coil pack is goin bad on my car so i think and i keep getting a check engine light for p0304 and p0300 misfires. mechanic said its my coil pack since i replaced the spark plugs and wires and still got misfires. i gapped the plugs at .026.

these are my mods:
Forced Performance Green 730cfm Turbo with external dump
Dejon intake pipe/K&N FIPK
Walbro 255 fp
660 injectors
Tial waste gate
Ported manifold
Greddy oil catch can
Greddy type S BOV
Greddy Large Intercooler Kit
Greddy IC pipes


Electronics:
Greddy profec b boost controller
Greddy 60mm silver face boost gauage & Greddy ext temp gauage
HKS turbo timer
Jumptronix air/fuel meter
Apexi S-afc


Full 3" Turbo Exhaust:
Hahn 3" DP~Hi Flow Cat
Thermal 3" exhaust with 5" tip

 

[toofast82]

What part of the city are you in?
Have you checked cam timing to be sure thats in line?

 

[talontsiboy24]

What part of the city are you in?
Have you checked cam timing to be sure thats in line?

im in hickory hills. it would be nice for someone on the side who can work on my car but there aint nobody i know of around here.

 

[d2james88]

If you would like to upgrade your coil without going cop MSD sells a direct replacement 4 post coil that will work well with the stock set up. I would do that since you said your coils going out.

 

[talontsiboy24]

If you would like to upgrade your coil without going cop MSD sells a direct replacement 4 post coil that will work well with the stock set up. I would do that since you said your coils going out.

i was thinkin msd but i dont see one for my 97 gsx on there website?

 

[talontsiboy24]

are my coil pack terminals round or flat pin for my 97 gsx?

 

[RotaryAE86]

did you get the alternator? if not whats the hold up on at least getting it tested again? or if you have a voltage meter just hook it up to the charge back wire and see what voltage its putting out

 

[talontsiboy24]

did you get the alternator? if not whats the hold up on at least getting it tested again? or if you have a voltage meter just hook it up to the charge back wire and see what voltage its putting out

im getting it tested again tomorrow if it fails again then im getting a new alternator and see what happens from there.