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TPI to CARB What do I need?

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Old Apr 20, 2002 | 02:45 PM
  #1  
TAsRBAD's Avatar
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From: Muncie In USA
TPI to CARB What do I need?

I got rid of my TPI and put on an Edlebrock intake with an Edlebrock carb. What Else do I need to Finish the job?
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Old Apr 20, 2002 | 04:34 PM
  #2  
Stroked-Z's Avatar
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From: Ottawa, Ontario
I am correct in assuming you have the Edelbrock intake to fit 87 & later FI heads.

You'll need a fuel press regulator or different fuel pump to get that fuel pressure down to 5-7psi...

You'll need your throttle cable/bracket for your tranny (if auto)

You'll need to convert to another non-cc distributor

Does your sensors ect... run off the computer? How bout your speedo?


I think that pretty much sums it up.
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Old Apr 21, 2002 | 06:45 PM
  #3  
rocky383's Avatar
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Car: 88 IROC-Z
Engine: 383 Stroker
Transmission: TH350
One more thing. You need to be sure you get a return style AFPR if you go that route. If not, you'll burn out your fuel pump.
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Old Apr 21, 2002 | 07:08 PM
  #4  
Joshua Leslie's Avatar
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From: Birmingham Mi, USA
he is correct is saying you need a new fuel pump or regulator.

However, if you plan on using the stock fuel pump, you will need to re-wire it.
the pump will not pump gas becuz the ECM wont know if the engine is running, cuz you have taken off the sensors.

the only time it will pump is when you initally turn the key forward, then it will pump for 2 seconds, just long enough to fill up the carb. floats...then the car will run for about 30 seconds or so.
It took me about a week to figure this out when i did the same swap.

What I ended up doing was running the fuel pump lead to a on/off toggle and then to the battery.
After a while, the pump died, so I put on a Holley external, its great, didnt even need to remove the old pump.
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Old Apr 22, 2002 | 01:41 PM
  #5  
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Car: 88 IROC-Z
Engine: 383 Stroker
Transmission: TH350
I didn't re-wire my pump after I took the computer out and I haven't encountered any problems. It's been that way for about 6 months.

:hail: IROC-Z
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Old Apr 22, 2002 | 02:16 PM
  #6  
Chronos_Titan's Avatar
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From: Naperville, IL
My brother swapped out the tpi setup for a carb. The big thing was a non cc distributor. A presure regulator with a gauge. Run the excess fuel back to the tank using the stock lines. The fuel pump is now on a Toggle on/off switch. That is about everything. The speedo acts funny too and he still has the computer.
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Old Apr 22, 2002 | 04:31 PM
  #7  
ChrisFormula355's Avatar
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From: Tucson,AZ,USA
Car: Junk
Engine: Junk with nitrous
Transmission: Junk with gears
I'd highly recommend NOT to get a regulater. I've done this swap on many cars and I often have fuel spike problems when I run a regulater, what I do is a lot more reliable............Just buy a $54 Carter electric street/strip pump (7psi) and disable your in-tank pump, and mount the carter right outside the tank on the rear seat "wall". That way you do'nt have to run any kind of return line. Works perfect on my cars. I did however run the Barry Grant bypass on my firebird for a year with no problems, but on two other cars I had problems so......??
Chris
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Old Apr 22, 2002 | 09:16 PM
  #8  
86Tra/maro's Avatar
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From: Newark,NJ The state where racing on I 78 rules.
What about the electric fan coming on? No computer no fan right?
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Old Apr 22, 2002 | 09:42 PM
  #9  
rocky383's Avatar
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Joined: Nov 2001
Posts: 532
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Car: 88 IROC-Z
Engine: 383 Stroker
Transmission: TH350
Mine still works. The fan switch on the passenger side head is what flips it on when hot enough.

:hail:IROC-Z
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