Turbo fuel pump on a TBI

[Jack's Dodge]

I was considering swapping one on, just to save time of doing it later. What efffects could I expect from this, if any?

[mpgmike]

It should run pig-rich, flood while starting, smoke like crazy, and sooner than later start blowing out old rubber fuel lines. The pressure differential between the two applications is crazy. TBIs use something like 15 psi and the turbo pumps can hit over 70 psi dead-head.

Mike

[Jack's Dodge]

Well, that's the end of that idea.

[MidwestMotorman]

Better double check that info. What years are we talking about? Older 84 and 85 systems were rated at 36psi. Then the next few years were lower 15 psi systems. Chrysler went back up to the high pressure TBIs in 1991???
It will work as I have swapped an 88 T1 motor out for a same year TBI motor just using the engine harness.

[Una]

It'll work fine, lots of people have done it. Good grief, the smart people go to ****************, and we're left with nothing but misinformation here..

[allmotor]

AMEN!!!!

Like someone putting a question, "I have a rampage, what can I do to it?" like what?????? maybe install a gigawatt stereo, huge tail pipe, some 20's

I'm surprised no-one has put on a post... "How do I put gas in my TD?", or "my mechanic says I need a clue, how do I get one of these, I don't have much money but since I own a TD that's a given"

[TurboTurismo]

even so wouldn't the fpr bring the psi down anyways!
Just a thought
Robb

[Una]

Quote:

Originally Posted by Robb even so wouldn't the fpr bring the psi down anyways! Just a thought Robb

Yes. that's what the FPR is there for.

[Jack's Dodge]

Where the hell do you guys get off running your mouths, as if no one is good enough to ask a question?

Quote:

Originally Posted by Una It'll work fine, lots of people have done it. Good grief, the smart people go to ****************, and we're left with nothing but misinformation here..

Quote:

Originally Posted by allmotor AMEN!!!! Like someone putting a question, "I have a rampage, what can I do to it?" like what?????? maybe install a gigawatt stereo, huge tail pipe, some 20's I'm surprised no-one has put on a post... "How do I put gas in my TD?", or "my mechanic says I need a clue, how do I get one of these, I don't have much money but since I own a TD that's a given"

Perhaps you misread my question. It was about using an MPI fuel pump in a tbi car. You apparantly have some other problem going on in your life, and I empathize with that. On the other hand, getting online and lashing out at people is a very non-contructive way to repair your damamge. Hate breeds only pain and depair, and is that how you really want to be remembered when you are gone? I'd hope not.

[Una]

Quote:

Originally Posted by Jack's Dodge Where the hell do you guys get off running your mouths, as if no one is good enough to ask a question?

I wasn't badmouthing you dude. I was *****ing at the people who said it won't work, because they were flat out wrong.

Quote:

Originally Posted by Jack's Dodge Perhaps you misread my question. It was about using an MPI fuel pump in a tbi car.

No, I didn't misread the question. The TBI cars actually came with the exact same pump as the MPI/turbo cars starting in 91..

[Jack's Dodge]

Quote:

Originally Posted by Una I wasn't badmouthing you dude. I was *****ing at the people who said it won't work, because they were flat out wrong. No, I didn't misread the question. The TBI cars actually came with the exact same pump as the MPI/turbo cars starting in 91..

I see your point, but I am confused as why you feel the need to correct someone with the added hostility

Carlisle is in less than a week man. It's a beautiful summer. Life is good. Lighten up some.....

[mpgmike]

Quote:

Originally Posted by MidwestMotorman Better double check that info. What years are we talking about? Older 84 and 85 systems were rated at 36psi. Then the next few years were lower 15 psi systems. Chrysler went back up to the high pressure TBIs in 1991??? It will work as I have swapped an 88 T1 motor out for a same year TBI motor just using the engine harness.

It's been a decade and a half since I worked at the dealers, but I just seemed to recall that the (years I worked there) TBI cars were like 15-18# dead-head pressure, and the turbo engines were running upwards of 75#. Thanks for typing something that makes me feel a little less senile.

Mike

[phantomrt]

The later model TBI's starting in about 1991 were high pressure systems. I "THINK" 45 PSI. Earlier than that they were 15 PSI and someone mentioned before that they were 35 or something, which I have no idea about. Turbo, V-6, and TBI all used the same fuel pump in 1991+.

The multi-port injected stuff was 55 PSI static pressure, and with enough turbo boost (20 PSI) it could go to 75 PSI of fuel pressure.

Installing a turbo fuel pump will work without a problem, even in the low pressure TBI systems. The fuel pressure regulator will maintain appropriate fuel pressure so the engine doesn't flood out. It'll work.

[Jack's Dodge]

Quote:

Originally Posted by phantomrt The later model TBI's starting in about 1991 were high pressure systems. I "THINK" 45 PSI. Earlier than that they were 15 PSI and someone mentioned before that they were 35 or something, which I have no idea about. Turbo, V-6, and TBI all used the same fuel pump in 1991+. The multi-port injected stuff was 55 PSI static pressure, and with enough turbo boost (20 PSI) it could go to 75 PSI of fuel pressure. Installing a turbo fuel pump will work without a problem, even in the low pressure TBI systems. The fuel pressure regulator will maintain appropriate fuel pressure so the engine doesn't flood out. It'll work.

Installed my MPI fuel pump from my 86 Z and the car fired up, and idled smooth. Stepped on the gas and it stalled out. Toik a while to get it running again. Apparantly, my car does not agree with a turbo fuel pump. Swapped the a new fuel sock onto the old pump, and it gave an unstable idle and died. I'll get another pump tomorrow.

[MidwestMotorman]

Any updates? If the car acts like that, could be your fuel pressure regulator is bad. It is probably not working correctly, especially if original, and it just can't bleed off the extra fuel or can't hold it in once it releases at max rate at startup. I went throught the same problem on my swap.