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Low buck 318 build...
#834556
10/20/10 09:42 AM
10/20/10 09:42 AM
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Joined: Jan 2006
Posts: 419
NY
F1Scamp
OP
mopar
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OP
mopar
Joined: Jan 2006
Posts: 419
NY
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Alright guys, I have a 66 Dart that is itching for attention...
It has a 318 from unknown orgins, w/ magnum heads, magnum version of a air-gap intake. Has great oil pressure, 155psi cranking compression, and runs hard from 3800-6200. But the stock converter and 2.9 rear gear make it an absolute slug on the bottom. I have a good built 904, 3500stall converter, 8 3/4 w/3.23 posi to throw in the rear. Has good suspension and been converted to disc brakes.
I live 44miles from work, around 85miles from the local track. I want to do a as cheap as possible build that I wouldn't have an issue driving to track and back. Pump gas deal.
I was thinking along the lines of: Factory exhaust manifolds swapped, homemade 2 1/4" crossover, cheap ebay t3/t4 hybrid (internally gated 8psi one), cheap ebay intercooler, blowthru 750 eddy, 3" downpipe split to 2 1/2"factory exits, bosch blowoff valve, msd 6al.
Thinking of putting the turbo where the battery would go and throwing the battery in the trunk.
Please crtique this.
Also as far as fuel systems go... can I use a carter mechanical pump or does it need to be boost referenced? I hate electric pumps on muscle cars.
Any flaws in the plan?
Brian
Work In Progress- 71' Duster F.A.S.T.- 10.36@130 Smallblock Record Holder.
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Re: Low buck 318 build...
[Re: F1Scamp]
#834566
10/20/10 01:21 PM
10/20/10 01:21 PM
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Joined: Dec 2006
Posts: 3,533
Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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Quote:
Also as far as fuel systems go... can I use a carter mechanical pump or does it need to be boost referenced? I hate electric pumps on muscle cars.
To go further on what some others have said:
Boost-referencing is not related to teh type of pump you use, it refers to increasing fuel system pressure 1:1 with boost so that you fuel delivery remains constant. Mandatory with any force-fed engine.
As Yuck mentioned, you can boost-ref a mechanical pump that way, otherwise boost-ref for an elec pump is typically done at the pressure regulator (if a bypass style). Can't boost-ref a dead-head regulator, I don't think.
Whatever pump you use, you must verify that you get enough fuel flow at max boost (either by engineerig specs, measuring into a bucket, or a gauge on the engine) otherwise you will run lean, and lean can quickly destroy a pressurized engine. Some pumps can supply sufficient flow at low pressure, but adding 10-15 psi addtional pressure on their outlet causes them to deliver insufficient flow.
Remember - pumps create flow, the system restrictions create pressure. A pump must be able to provide flow in the face of that pressure.
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Re: Low buck 318 build...
[Re: F1Scamp]
#834567
10/20/10 01:33 PM
10/20/10 01:33 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
Quote:
I'd buy a S/C unit of a 5.0L mustang and make it work for your Dart. Probably score an entire set-up for around $15-1800. You can't flip sb mani's like a BB. You will have to custom make everything. Unless you have mad welding skills the S/C is going to be cheaper in the end.
Not interested in doing a s/c set-up. Why cant I swap the manifolds side to side?
If you want to turbo it you will have to custom make headers or as mentioned flipflop the mani's and create some kind of set-up. Not sure what would be easier. I guess you might be able to get a set of shorty headers and mount them backerds. One problem is you don't have a ton of room in that engine bay so you will need the  no matter what you do.
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Re: Low buck 318 build...
[Re: Mr.Yuck]
#834568
10/20/10 02:01 PM
10/20/10 02:01 PM
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Joined: Jan 2006
Posts: 419
NY
F1Scamp
OP
mopar
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OP
mopar
Joined: Jan 2006
Posts: 419
NY
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All I have in the Duster is a carter mechanical, and I don't plan on going faster than 11.9's tops in the 66. I have a msd6btm, but I was thinking just welding the slots in the dizzy would be a more consistant answer. I am not afraid of alittle and  . Is there a turbo you guys reccomend? I am willing to take chances on the ebay deals.
Work In Progress- 71' Duster F.A.S.T.- 10.36@130 Smallblock Record Holder.
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Re: Low buck 318 build...
[Re: turbo66valiant]
#834571
10/20/10 08:27 PM
10/20/10 08:27 PM
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Joined: Jan 2006
Posts: 419
NY
F1Scamp
OP
mopar
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OP
mopar
Joined: Jan 2006
Posts: 419
NY
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That set-up fits with the factory k-member? Do the pipes go under it?
I figured I could find some manifolds that would miss most everything, if I have to make a mount for the alternator to move it so be it. Someone has had to have done this and knows what manifolds would work?
Work In Progress- 71' Duster F.A.S.T.- 10.36@130 Smallblock Record Holder.
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Re: Low buck 318 build...
[Re: turbo66valiant]
#834573
10/20/10 09:51 PM
10/20/10 09:51 PM
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Joined: Jan 2003
Posts: 24,562
Brookeville, Md
Mr.Yuck
Not enough dumb comments...yet
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Not enough dumb comments...yet
Joined: Jan 2003
Posts: 24,562
Brookeville, Md
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Quote:
We have the hedman block huggers on our 318ci and welded dizzy slots. This is in a 69 Dart so you would have to trial fit the headers. Looks like there is room to spare. Also running the basic MP Ign. Single turbo w/ Garret T70. Later
Ryan
looks good. Wonder if you could do the same w/ a BB B-body???
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Re: Low buck 318 build...
[Re: F1Scamp]
#834574
10/21/10 08:55 AM
10/21/10 08:55 AM
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Joined: Dec 2006
Posts: 3,533
Indiana
Fury Fan
master
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master
Joined: Dec 2006
Posts: 3,533
Indiana
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Quote:
if I have to make a mount for the alternator to move it so be it.
If you go to the turbomustangs site, do a search thru my posts (I'm Fury Fan there also). I started a thread on alternator relocation brackets and I think there are some links in there. There are a few smallblock relocation kits out there.
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Re: Low buck 318 build...
[Re: Fury Fan]
#834575
10/23/10 08:17 AM
10/23/10 08:17 AM
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Joined: Sep 2007
Posts: 468
Dirty Dena, Maryland
dodge turbo
mopar
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mopar
Joined: Sep 2007
Posts: 468
Dirty Dena, Maryland
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manifolds off a mag motor fit perfect in an a-body flipped side to side
- and i flipped my alt to the drivers side with out havin to buy or make special brackets..just a vise to flatten out the triangle piece and made just shortened the spacers
78 Adventurer 150small block turbo'd 360w/Borg S475....smoke'em
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Turbos like small overlap/duration, the oppoosite of a cam that helps a NA engine rev high. You'll have to research that one further.