jdm h22

[rubennebur]

i have a jdm h22 with a skunk2 intake mani, jasma headers, and an intake...what octane should i pump in it??.....cuz i use to use 91 and at certain rpms it would back fire....so irecently switched to 89 and the car runs smooth....what should is required for my engine?

[fatboy1185]

Get it tuned.

[rubennebur]

yeah but wich octane im i supposed to pump?..yeah a tune seems about right cuz it only started when i installed the new mani

[tm123]

h22s require at least 91 if not 93
premium gas only
backfiring is not a bad thing

[deevergote]

If it's backfiring with 91, make sure your ignition components are up to par. Plugs should be platinum or irridium only.


And by the way, that Jasma header... Jasma is not a brand. Look it up.