Choosing positions for larger injections
Thread Starter
U-Stink-But-I-♥-U
iTrader: (1)
Joined: Mar 2005
Posts: 2,004
Likes: 2
From: 12 o'clock on the Beltway.
Choosing positions for larger injections
I am trying to determine the optimum positions for upgraded injectors. I bought 4 injectors through mazsport. They are 2x650cc and 2x720 (or 780, I cant remember now as it has been a year.) The suggested positioning for these injectors with the int-x was to put the 650s in the p1 position and the 720s in the secondary position (I think, maybe it was p2). I have ditched the int-x and am going to tune with the accessport.
I think the best option is to put the stock 290s in the p1 position for idle quality and off boost crusing then put the 720s in the p2 and 650s in the secondary positions. Unfortunately, I dont have the sophistication to conclusively justify this opinion. I would appreciate EDUCATED opinions. This is a turboed application. Thanks.
I also would like to ask if the injectors can be removed without removing the oil metering pump. (Actually, I got one of them off without removing the oil metering thingy, but the others are nearly impossible. I was curious what others have done.
I think the best option is to put the stock 290s in the p1 position for idle quality and off boost crusing then put the 720s in the p2 and 650s in the secondary positions. Unfortunately, I dont have the sophistication to conclusively justify this opinion. I would appreciate EDUCATED opinions. This is a turboed application. Thanks.
I also would like to ask if the injectors can be removed without removing the oil metering pump. (Actually, I got one of them off without removing the oil metering thingy, but the others are nearly impossible. I was curious what others have done.
Last edited by carbonRX8; Jan 25, 2009 at 04:52 PM. Reason: Edited to clear a typo on position
Just take off your intake manifold (upper), unbolt the VDI actuator bracket and pop out the fuel rails.
PIITB?
Thread Starter
U-Stink-But-I-♥-U
iTrader: (1)
Joined: Mar 2005
Posts: 2,004
Likes: 2
From: 12 o'clock on the Beltway.
Originally Posted by carbonrx8
I think the best option is to put the stock 290s in the p1 position for idle quality and off boost cruising then put the 720s in the p1 and 650s in the secondary positions.
Originally Posted by carbonrx8
I also would like to ask if the injectors can be removed without removing the oil metering pump. (Actually, I got one of them off without removing the oil metering thingy, but the others are nearly impossible. I was curious what others have done.
Just take off your intake manifold (upper), unbolt the VDI actuator bracket and pop out the fuel rails.
I have a related question. I now have to do some soldering over this fuel soaked area. (moving the jumpers.) It is quite cold and taking some time for the puddles of 93 to evap. How do I tell when it is safe for an open flame (butane) souldering iron??? I have the fire extinguisher sitting next to me, but I am not a fan of the bald eyebrow look. Any hints???
ezactly.
Thread
Thread Starter
Forum
Replies
Last Post
JimmyBlack
Series I Major Horsepower Upgrades
273
Feb 10, 2020 10:23 PM




