firing order question

[covrace]

I have a 1990 gt. what is the correct firing order and which plug is considered number 1. first plug passenger or first plug drivers side. also, how are the cylinders numbered per bank??

thanks
Jake
Coviello racing

 

[notchback]

#1 is first(towards front of car) on passenger side

i don't recall the firing order though

 

[retro50]

The cylinders on the pass side are numbered 1-2-3-4. The driver's side cylinders are 5-6-7-8. The firing order is 1-3-7-2-6-5-4-8. #1 on the distributor cap is in the 1' o-clock position if you are looking at the distributor from the front of the car. the distributor rotor rotates counter clockwise.

 

[Black 93 Fox]

I know he has a ho motor but i thought i would just say that a firing order for a HO motor and a non HO motor is different.

 

[squeeeg]

The cylinders on the pass side are numbered 1-2-3-4. The driver's side cylinders are 5-6-7-8. The firing order is 1-3-7-2-6-5-4-8. #1 on the distributor cap is in the 1' o-clock position if you are looking at the distributor from the front of the car. the distributor rotor rotates counter clockwise.

He is right except for one thing. The #1 spark plug on the distributor is at 11 o'clock

 

[z9_87]

unless you have the timing super-advanced.

 

[squeeeg]

I didn't think about it that way.