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Discussion Starter #1 (Edited)
Hey fellas I'm a 302 mustang man but I'm thinking that a t-bird woild be a cool project. I'm not looking to make a race car just a nice cruiser w around 280-300 rwhp range. I like the looks of the later birds with the 4.6 but I know pretty much next to nothing about that segments aftermarket. I'm assuming y'all are using 4.6 mustang parts? What parts are a "direct swap" and what needs to be fabed up a bit (ie need a new hood for intake clearance etc)?Are my horsepower goals obtainable without having to get a second mortgage?

Thanks for any insight
Mike
 

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Brakes and suspension first.

Gears next.

Don't forget the J-Mod (see the tech articles from the main web page).

And - after all that - save up and do the 32V (or 4V as it's known in Mustang parlance) swap to a Mark VIII or Cobra 4.6 motor.

RwP
 

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Discussion Starter #3 (Edited)
I get steps of a "restomod." So a motor swap is the way to go? Is it due to lack of aftermarket support or motor potential, or both? I'm trying to decide between the 5.0 model and the 4.6
Ps: j-mod- shift kit
 

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Are my horsepower goals obtainable without having to get a second mortgage?

Thanks for any insight
Mike
only if you know what you're doing. Are you gonna be doing everything? How much do you know about 4.6 modular motors and engine building in general?
 

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Discussion Starter #5
Thanks guys. Yeah I'm a lot more comfortable w the pushrod 5.0. Fox and 94/95 mustangs get in the 300 horse range w the Tfs topend kit and supporting cast. Let me ask y'all this, do y'all know if the front fascia from the 4.6 tbird fit on the 93 or whatever year came wit the 5.0? I guess I should prob ask that in the 5.0 section but anyways, y'all know? So this forum is broken down by engine type not make/model/year?
 

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The Cougars had the same basic front clip (chrome/painted were the major differences) from 1991 to 1995. That may be a choice also.

And since a) the NA 3.8 was available all years, b) the 3.8SC was available 1989-1995, c) the 5.0HO from 1991 to 1993, and d) the 4.6 from 1994 to 1997, it made more sense to do it by motor for the motor-specific stuff. Most of the rest doesn't really matter what year or motor,

For the TFS topend, you'd need a hood scoop or a new hood to clear - but that's a good choice anyway.

If possible, grab a 1993 since that had the later chassis and several of the wiring improvements (electrically and subchassis wise the split is 1989-1992, 1993-1997).

(I also happen to like the 1993 and earlier front clips, and the 1989-1993 dash layout. Others have different choices. Meh. Pick what you like.)

As to that front clip - yes, but you'll need header panel, bumper cover, bumper support, and hood to swap them. And if it's 1996-1997, those parts are all with the holes for the side cladding.

RwP
 

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What all is needed to get a 4.6 2v in the 280whp range? And what kind of quarter mile times can I expect with that power level with no weight reduction and 3.73s through a 4r70w?
 

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Two things to do,
higher compression and great flowing intake and heads.
Everything else is the same,
except our heaps are 400 lbs. heavier than a fox.
 

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That's every internal combustion engine. What are y'all using for heads and intakes?
Depends on how much you want to spend..

You could get the TFS street/strip H/C/I, or you could just get ported PI stuff with some cams (~270 crank HP N/A).

You could get some stage 2 cams. IIRC stage 2 you don't have to notch the pistons for the valves, but you need to upgrade the springs.

Literally 99% of the Mustang 4.6 2V stuff will "plug-n-play". If you haven't dealt with any EEC-V stuff, you'll need a special tune for most of the engine stuff. You can run a PI swap without it and be fine for awhile, but you really need a tune for every major change.

The only thing I can thing of engine related that won't work is the engine harness and a few connectors, but that's self explanitory.
 

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TFS, heads, cams, intake.
If it would ever stop raining I'd make some runs.
Also, did I say there cars are heavy.
 

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Discussion Starter #15
Yeah I was doing some reading on them. They seem to be comparitable to the pushrods gt40 heads in terms of power. Are y'all having to rev the hell outta em to make power or is the Tfs head streetable enough?
 

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Yeah I was doing some reading on them. They seem to be comparitable to the pushrods gt40 heads in terms of power. Are y'all having to rev the hell outta em to make power or is the Tfs head streetable enough?
as long as you don't go crazy on the cams, the TFS heads are streetable. But then again, the cams play a huge role on the final power production numbers. So it's a give and take. In any event you're looking at a multi-thousand dollar setup. R429460 can give you a ball park figure of what he spend to get to where he is at with his setup.
 

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Discussion Starter #17
Trying to finish a supercharged mustang gt now so it might be a minute before I can get into something else. I was just seeing what kind of options I had w the 4.6. So most of the off the shelf mustang performance parts will work w the t-bird?
 

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Literally 99% of the Mustang 4.6 2V stuff will "plug-n-play". If you haven't dealt with any EEC-V stuff, you'll need a special tune for most of the engine stuff. You can run a PI swap without it and be fine for awhile, but you really need a tune for every major change.

The only thing I can thing of engine related that won't work is the engine harness and a few connectors, but that's self explanitory.
Will 2v supercharger kits more or less bolt up as well? And does anyone do mail order tunes for these cars or will 96-04 Mustang tunes work?
 

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Will 2v supercharger kits more or less bolt up as well? And does anyone do mail order tunes for these cars or will 96-04 Mustang tunes work?
Depends, if it's roots & twin screw types (on top of the engine) then yes, but you will more than likely need a cowl hood.

Centrifugal superchargers can fit because they just mount to the front of the engine and run off the belt drive that way. Only problem is, just because it fits doesn't mean it fits well. They're pretty squeezed in there. You can work with it, but I know you don't have much room after all the plumbing is done.

Also yes, Don LaSota does them, and a lot of people swear by him. Best best though is a dyno tune.

http://www.lasotaracing.com/
 

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Discussion Starter #20
Centrifugal apples and oranges.

Depends, if it's roots & twin screw types (on top of the engine) then yes, but you will more than likely need a cowl hood.

Centrifugal superchargers can fit because they just mount to the front of the engine and run off the belt drive that way. Only problem is, just because it fits doesn't mean it fits well. They're pretty squeezed in there. You can work with it, but I know you don't have much room after all the plumbing is done.

Also yes, Don LaSota does them, and a lot of people swear by him. Best best though is a dyno tune.

http://www.lasotaracing.com/
I know it's not really helping anyone due to apples and oranges but when I put the Vortech my 95 mustang I had to "rig" some stuff up to make it fit. Had to grind down t-stat housing and stuff like that. The kit was designed for the car but its a tight squeeze and now stuff like plug changes will be difficult. Anyways thanks for y'all's help guys.
 
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