coil pack vs direct coil ignition

[NICO]

any help on this subject would be great.


should i change my system (ej22t) to this direct coil on plug? is it really that much better?

i dont get it!! a ej20k that can rev so high and a huge ass turbo vf22, can rev all day and night to say 8000rpm with no problems.

and on the other hand the ej20g can only rev to 7000rpm?

what gives? i have both these heads on diffrent ej22t blocks, with the ej20k i can rev high and no problem, with the ej20g heads i get this crazy cut feel after 6000rpm?

should i use the ej20g dci system that i have laying around?

also how hard would it be to make it work on my car? i know i can set it up in my autronic very easy, but how would i wire these in the car to work if i really do need them?

any help would be great on this subject.

[93forestpearl]

20g heads have hydraulic lash adjusters which really don't like to rev over 7k.

[NICO]

i get a wierd rev past 6000rpm in my car for some reason.

[NICO]

hmm i am wondering if anyone else on the legacy fourms has a problem reving past 6500rpm with there ej20g heads?

i wonder if i used the plastic cam gears is that why i cant rev past 6500rpm? the ej20g ones came with steel ones.

[93forestpearl]

You aren't the first person to have trouble revving up high. Someone local had the same issue with his EJ20g longblock. There's a reason Subaru has gotten away from HLA's on their performance motors. They aren't the best at maintaining valve lift at high RPM.

[NICO]

thank you so much 93forestpearl, thats the answer i was looking for.

i was about to rip it all apart, i changed everything you can think of.

so there is something up with these dam heads, they flow nice right up to 6500rpms and go splattt after that. well i guess for a nice clean basic motor set up they are ok.

shit this set up just might out last me LOL.

i owe you a beer 93forestpearl, so i wont waste anymore time trying to get this set up right!! becuse its good for a everyday motor. time to build the race motor now.

[93forestpearl]

Hamilton is a bit of a drive for me, but I'll take a '97-98 DOHC 2.5