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A Couple More Turbo Questions
https://www.slantsix.org/forum/viewtopic.php?t=4113		 Page 1 of 1
Author:  DusterNut [ Mon Sep 02, 2002 5:39 pm ]
Post subject:  A Couple More Turbo Questions
I am going to turbo my Duster with a 225/4-spd-OD.
So im still not sure in a few areas.

-I remember hearing that a BB Mopar fuel pump will fit the slant if i swap the slant arm into the the BB pump, is this true? I think i would feel better having a boost refrenced BB pump, this way i could have 3/8 line the whole way.

-Is the MSD BTM absolutely necessary? If i retard the timing 5-7 degrees will i be ok?

-Should i keep my dual 2" Flowmater exhaust, and run a y-pipe into the turbo, or sell it and run a single 3" into a Magnaflow muffler, with dual 2.5" outlets? The flowmasters are a little too loud actually, i dont want to get negative attention from the law enforcement:)

Thanks, Tom B

tommyb1515@aol.com
Author:  Matt Cramer [ Mon Sep 02, 2002 7:13 pm ]
Post subject:  Re: A Couple More Turbo Questions
Quote:
: I am going to turbo my Duster with a
: 225/4-spd-OD.
: So im still not sure in a few areas.
:
: -I remember hearing that a BB Mopar fuel pump
: will fit the slant if i swap the slant arm
: into the the BB pump, is this true? I think
: i would feel better having a boost refrenced
: BB pump, this way i could have 3/8 line the
: whole way.


I tried this, but after getting the fuel pump off and taking a look at them it looked like a bit more work than I wanted. So I just put an electric pump with a boost referenced pressure regulator on there instead. It certainly appears possible, but I wasn't sure how to remove the pin that was holding the arm in place easily; the only thing I could think of was drilling it out. If you want the BB fuel pump, I could sell you the brand new one I bought for the conversion.
:
: -Is the MSD BTM absolutely necessary? If i
: retard the timing 5-7 degrees will i be ok?

I've heard of turbo setups being done without a pressure retard, but the BTM will be helpful in making more power than with no system to retard timing under boost.
:
: -Should i keep my dual 2" Flowmater
: exhaust, and run a y-pipe into the turbo, or
: sell it and run a single 3" into a
: Magnaflow muffler, with dual 2.5"
: outlets? The flowmasters are a little too
: loud actually, i dont want to get negative
: attention from the law enforcement:)
:
: Thanks, Tom B

I don't have flowbench data for the Flowmasters or Magnaflow, but I'm guessing two mufflers will be better than one, and the Flowmasters should certainly work. If the Magnaflow is a good straight through design, chances are neither muffler setup will offer a performance gain.

Matt
Author:  Dan M. [ Tue Sep 03, 2002 6:27 am ]
Post subject:  Re: A Couple More Turbo Questions
Quote:
: -I remember hearing that a BB Mopar fuel pump
: will fit the slant if i swap the slant arm
: into the the BB pump, is this true? I think
: i would feel better having a boost refrenced
: BB pump, this way i could have 3/8 line the
: whole way.


I went this route myself, but I'm a little disapointed with the results. Next week I'm installing a Carter electric pump with a NOS vacume/boost refrenced regulator. My fuel pressure is a little weak at idle when I first start the car, takes about half a minute to come up, and I seem to run out of pressure at about 80 mph if I jump on it.
:
: -Is the MSD BTM absolutely necessary? If i
: retard the timing 5-7 degrees will i be ok?

I did the turbo first without the MSD BTM. About a month later I added it. Huge differance all the way around! (especially at low rpm)
:
: -Should i keep my dual 2" Flowmater
: exhaust, and run a y-pipe into the turbo, or
: sell it and run a single 3" into a
: Magnaflow muffler, with dual 2.5"
: outlets? The flowmasters are a little too
: loud actually, i dont want to get negative
: attention from the law enforcement:)

A turbo has a good deal of muffler efect on the exhaust. I ended up just doing 2 1/2" single pipe with a large stainless steel resonator off of a Mitabitchy. You'll probably be OK with the Flomasters.

Dan M.

slantedsix225@aol.com
Author:  andrew wagner [ Tue Sep 03, 2002 7:03 pm ]
Post subject:  Re: A Couple More Turbo Questions *PIC*
I ran a flowmaster on mine for a while. It works fine and I really liked the sound, but a straight thru muffler is the way to go with a turbo car. I also have the msd btm and I would not be with out one!

andrew wagner
Quote:
:
: I tried this, but after getting the fuel pump
: off and taking a look at them it looked like
: a bit more work than I wanted. So I just put
: an electric pump with a boost referenced
: pressure regulator on there instead. It
: certainly appears possible, but I wasn't
: sure how to remove the pin that was holding
: the arm in place easily; the only thing I
: could think of was drilling it out. If you
: want the BB fuel pump, I could sell you the
: brand new one I bought for the conversion.
:
: I've heard of turbo setups being done without a
: pressure retard, but the BTM will be helpful
: in making more power than with no system to
: retard timing under boost.
:
: I don't have flowbench data for the Flowmasters
: or Magnaflow, but I'm guessing two mufflers
: will be better than one, and the Flowmasters
: should certainly work. If the Magnaflow is a
: good straight through design, chances are
: neither muffler setup will offer a
: performance gain.
:
: Matt



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