Oct 27, 2003 | 03:27 AM
  #1  
I was wondering if the fuel pickup and pump are the same for the two?

I have lined up the intake, TB, wiring, comp, and sensors, and ofcourse a V8 will I need anything else?

thanks in advance guys
PS I have done carb V8 swaps in these cars before, I'm just new to the FI

Rich
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Oct 27, 2003 | 05:41 PM
  #2  
You'll need a fuel pressure regulator. FI runs at least 42psi at idle.
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Oct 27, 2003 | 05:56 PM
  #3  
the car was FI to start with, I need to know if mpfi and TBI use the same pressure?

the car is a 86 mpfi V6 that is getting a TBI V8 thanks for the reply though

Rich
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Oct 27, 2003 | 06:32 PM
  #4  
TBI runs a whole lot less psi, thus the need for the (edits: adjustable) fuel pressure regulator.


I think TBI is about 13~15 psi, but I've never had to deal w/it before.
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Oct 27, 2003 | 08:41 PM
  #5  
It's not the same pump. I did a TBI to TPI swap and had to change the pump. Now if you went from a V6 MPFI to V8 TPI then you don't have to change the pump. I know that for a fact because I did that swap once too.
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Oct 28, 2003 | 04:00 PM
  #6  
so there whould be too much pressure for it to work?
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