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Old 01-22-2008, 11:11 PM   #1
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new member.. got a few questions

hey everyone, just wanted to stop in and say hi, i just joined the forum today. i've got a 2002 GT, but the mod bug didn't really hit me until recently so i decided to seek some opinions on the forums. a little bit about myself... i grew up around cars and mechanics, my father was a HiLo manager so my "day care" consisted of me sitting in his office watching old NHRA tapes and other stuff his suppliers and reps dropped by, and i had my first real hands-on engine building experience at the age of 6 (my dad let me hold the valve spring box while he was assembling some heads). my dad and i restored a '72 Chevelle SS when i was 15 (i'm 24 now), i read up on engine building and built the engine myself, and ever since then i've been hooked. when i was 17 i started racing circle track dirt cars, built the cars and engines myself, but this is my first time to really get into modifying a newer engine. to me, tuning an engine consisted of adjusting the advance on the distributor and changing out needles and jets to adjust the a/f ratio, so it's refreshing to know that i can just take my Mustang to a shop and they can put it on a dyno and get a precise tune without all the guess work. i read a book by Sean Hyland about performance modular engines, just to get an idea of the layout of the motor, and it doesn't seem terribly different from the older pushrod engines i'm used to, but i really like the layout of the overhead cams. i'm going into some simple bolt-ons for now, but sometime within the next year or two i plan on doing a complete engine rebuild and want to put down some serious power. here's a short list of what the car's got on it so far:

Steeda cat-back exhaust (stock headers and midpipe, but that'll change soon enough)
BBK cold-air intake and 75mm throttle body
C&L upper plenum
Eibach lowering springs (with other suspension mods on the way, including the bumpsteer kit, control arms, and adjustable shocks/struts)
SCT XCal2 tuner (haven't tried the data logging yet but i plan on it sometime soon)

i plan on doing all of my suspension and brake upgrades before trying to up the power output a whole lot, i'd rather have my car handle and stop well before i start putting out more power. i've also got a set of CMS stage 1 cams in the mail, just to liven things up a little bit for now.

now for the (eventual) engine rebuild... i know that the stock 2v heads are pretty limited as to their flow potential, but i'm not really sure if i can use the 3v or 4v heads on my motor. is it possible for me to bolt the 3v or 4v heads on my current block, or would i have to start with a 3v or 4v longblock and go from there? is it even practical to use a 3v or 4v engine in my car? (i'm not sure if the ECU in my car can be tuned for a 3v or 4v engine, or would i have to get a new ECU?) if it is possible to use a 3v or 4v engine, will it bolt up to my current transmission (5 spd)? i've tried searching around for articles on this type of engine swap but just come up with a bunch of junk, so if anyone has a link to an article, or if you have any information that might help me, i'd really appreciate it. also, i know that some people will probably just tell me to sell my car and just buy a Cobra, and that's something i've considered, but i'm much rather build it myself than take the easy route and buy a different car.
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Old 01-23-2008, 09:34 AM   #2
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Re: new member.. got a few questions

welcome. I think you can bolt up 4v heads on your block. I would probably just build a new engine and drop it in though. Some get good power from 2v's, 300/300 isnt out of the question.
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Old 01-23-2008, 09:54 AM   #3
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Re: new member.. got a few questions

ok so if i use a 4v engine, will my current ECU and wiring be compatible with the new motor, or will i need an ECU from a Cobra?
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Old 01-23-2008, 09:58 AM   #4
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Re: new member.. got a few questions

I like what people are doing with the 3v setup, more power than the 2v but cheaper than bumping up to 4v setup.
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Old 01-23-2008, 10:10 AM   #5
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Re: new member.. got a few questions

There's alot of info out there about 2V to 3V 2v to 3v - BMC Forums - Black Mustang Club
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Old 01-23-2008, 10:11 AM   #6
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Re: new member.. got a few questions

There's alot of info out there about 2V to 3V 2v to 3v - BMC Forums - Black Mustang Club

2V-3V Conversion? - Page 2 - Mod Motor Tech Forums
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Old 01-23-2008, 10:13 AM   #7
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Re: new member.. got a few questions

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There's alot of info out there about 2V to 3V 2v to 3v - BMC Forums - Black Mustang Club
thanks, that's exactly what i've been looking for.
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Old 01-23-2008, 01:18 PM   #8
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Re: new member.. got a few questions

4v is better in the end but.. it does cost more. If I tore into it I would want to do it right or not do it at all.
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Old 01-23-2008, 01:33 PM   #9
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Re: new member.. got a few questions

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4v is better in the end but.. it does cost more. If I tore into it I would want to do it right or not do it at all.
that's the way i see it... if i'm already going to be spending the time and money to do it at all, i might as well go for the 4v, but my biggest question is about the ECU and wiring. i'm guessing i'll need a new ECU and wiring harness to hook up to the 4v?
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Old 01-23-2008, 02:54 PM   #10
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Re: new member.. got a few questions

Welcome to M.E.! Congrats on the GT!
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Old 01-23-2008, 03:08 PM   #11
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Re: new member.. got a few questions

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Welcome to M.E.! Congrats on the GT!
Nice car, looks just like mine I've had my car since '02, just never really did anything to it until recently (I've been in school so money has been tight). I'll try to get some pics of my car later, but just picture your car with black stripes and that's about what it looks like. I'm interested to see what your car looks like with the "Fobra" body parts, I've considered doing that to my car but I'm not real sure yet.
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Old 01-24-2008, 08:11 AM   #12
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Re: new member.. got a few questions

The 2v heads are fine i got a friend who made around 630 with some ported and polished 2v heads.You could always just step up to a set of patriot heads no need to attempt a 4v swap.
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Old 02-02-2008, 07:21 PM   #13
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Re: new member.. got a few questions

what do they stock PI heads flow? patriot? 3v? 4v?
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