Fast XFI
#1
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Car: 86 IROC w/Danko bodykit, 1988 iroc vert, 1989 k1500 pickup 6" lift and 35" tires, 2002 chevy tahoe z71
Engine: 383 stealth ram, 305 tpi, 350 tbi, 5.3l
Transmission: T56, 700r4, 700r4, 4l460
Fast XFI
i am going to purchase a fast xfi for my car. i noticed that you can run the fast system either bank to bank or sequential. if i go the sequential way i would need to purchase a new distributor with a cam sensor. my question is how much more HP can i pick up going this route over the bank to bank way. basicaly looking at the pros and cons of both ways. thanks
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Car: 1984 Trans Am WS6
Engine: Minirammed 385, 396 RWHP
Transmission: T56
Axle/Gears: 3.73 Moser 12-bolt
Re: Fast XFI
You wont pick up much HP by going sequential. What you will pick up is a little better idle control. Same thing with emissions. By firing each injector sequentially, you dont leave any fuel sitting around on the top of the valve, waiting for the valve to open. This helps you with your idle quality and emissions control. However at high speed, the inejctor duty cycle is so wide that it's usually firing 75, 85% of the time, making the precision of sequential fuel injection inconsequential. At WOT, there is usually no benefit to sequential.
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Car: 86 IROC w/Danko bodykit, 1988 iroc vert, 1989 k1500 pickup 6" lift and 35" tires, 2002 chevy tahoe z71
Engine: 383 stealth ram, 305 tpi, 350 tbi, 5.3l
Transmission: T56, 700r4, 700r4, 4l460
Re: Fast XFI
ws6transam thanks for the info. i just got the system in today. i am going to start putting it in over the weekend if i get a chance. i went the sequential route. i will keep you posted on how it goes. thanks agaiin
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