[99GTottawa]

i have a 99 gt 4.6l sohc. i want to buy a supercharger kit. any suggestions?

 

[Bullitt5339]

Peas or Carrots?
Lemons or Limes?

There's advantages and disadvantages to each one, you need to tell us some additional information on what you use the car for, and what you want it to do before we can help you make a decision.

 

[99GTottawa]

daily driver, once in a while drag. was thinking about kenne bell twin screw 9 psi kit. stock motor for now until it blows?!

 

[04KenneBellGT]

I love my KB, great for a street car. Mad low end torque and instant boost is addicting. Have it tuned properly and dont run too much boost and you shouldnt blow unless you hammer it everywhere you go.

 

[jep23]

Blowing your engine is a good excuse to get a better one :yup:

 

[MeanChad1]

Twin screw superchargers are normally more expensive because they usually need a intercooler as they create a lot more heat then a centri. Twin screw blowers produce a lot of torque at low rpms not that anyone races at low rpms anyway but for some people it makes them happier. I went the centri route and am running the Vortech V3 Si blower which is the newest blower vortech makes I am running a intercooler and a small pulley and to me It pulls like a twin screw blower and I love my top end power pulling on cars.

 

[Carl. D]

blowers

Centrifugals can make some nasty top end, they can also be easier to drive on the street, twin screws makes so much torque that traction is a issue, but fun though.

If your spin nnnn your losennnnn.

 

[99GTottawa]

so far the prices i've been finding are only a couple hundres dollars cheaper for the centrifigal over the twin screw. the twin sounds like a better unit. and more power potential for the future.

 

[86967]

Personally I'd do a turbo if I had mine to do over, the Kenne Bell is nice, the low torque is better because in daily driving that is where you spend most of the time driving...I would still pick twin screw over centri if I had to because it is quieter at idle, smoother and makes great power at all rpms levels...a centri can make more power since it is easier to intercool, however they are noisy and Vortech seems to have a rep for poor customer service and reliablity issues.
Turbos are cheaper to and easier to intercool...
As I've posted so many times before, after you add all the expense of any power adder and mods(fuel system, tuning, suspension etc to do it right) you should really consider selling your car and buying the Terminator...
At 9psi you will be disappointed, I run 12 and it's nice, however to go any higher requires a forged shortblock and in all cases you need to have access to a really good tuner to make sure you aren't blowing up the motor you have.
I think alot of people think they just slap a supercharger on their car and it then has mind blowing hp...
In dollars vs hp it's very expensive to supercharge a car...
Once again I'm posting the reality of how I saw my car in terms of what I got...at $8000 for about 120hp(blower, install, tuning, supporting mods, and dyno time) that is not good in my book, others I'm sure may vary in their opinions but this is a forum and my take on it...
FYI, I was in a 2001 gt with a forged shortblock, stock heads/cams and a mid size turbo, it put down 550rwtq and was like a rocket on wheels

 

[Carl. D]

blow

If I can I will probally sell my T Trim, I have a 4V that I am putting in later, and I think that I will probally Screw it, my tuner laughs at me cuz the T Trim will make so much on top but my 4V is a 98 so torque is just not there on the bottom, I think the Screw will be fun to drive, nothing like hitting it at 2000rpm and actually have some torque.

Now dont get me wrong about 3300 plus rpms and the T starts to come alive too.

Im no street racer but if you are there is no hiding a centri, specially a T Trim or a big Procharger, mine is nasty loud, I like it though, gets alot of attention.

 

[99GTottawa]

all interesting comments. i still haven't decided twin or centri yet. pricing them out in ottawa they are pretty much the same price for the equivalent kits. does the twin really have that many problems keeping traction?? i'm not worried about the noise under the hood of the centri. decisions, decisions ?!?

 

[torchred02GT]

http://www.allfordmustangs.com/foru.../forums/4-6l-talk/218246-how-build-affordable-supercharger-kit-4-6-mustang.html

This thread should be helpful to you if you decide to go the centri route

 

[bjorkmae]

I supercharged my the 5.4 that I swapped into my crown vic. Car was originally powered by a 4.6 similar to the mustang, the 5.4 was from a van and I used intake manifold adapters to make the 4.6 intake manifold fit. Anyway I used a vortech centrifigal charger and like others have said there are good and bad points of both. If I was to do it again i would choose a roots style blower. The roots is simpler to plumb because the intake tube attaches to it and that's pretty much it no bypass valve to plumb in etc. You don't have to run an oil supply and drain line to it and they take up less engine bay room, hood clearance aside, and look cleaner. I know they make centrifigal superchargers that don't require pressurized oil supply but they aren't as reliable. Now some of this is based on the fact that I did a custom install on a 5.4 in a crown vic not a 4.6 in a mustang. Yes roots produce more low end torque and are less efficient and have less max power potential but they are more reliable. Look at all the vehicles that come factory supercharged and you'll notice that most are roots blown even though roots are more expensive they are more reliable.

 

[MeanChad1]

I supercharged my the 5.4 that I swapped into my crown vic. Car was originally powered by a 4.6 similar to the mustang, the 5.4 was from a van and I used intake manifold adapters to make the 4.6 intake manifold fit. Anyway I used a vortech centrifigal charger and like others have said there are good and bad points of both. If I was to do it again i would choose a roots style blower. The roots is simpler to plumb because the intake tube attaches to it and that's pretty much it no bypass valve to plumb in etc. You don't have to run an oil supply and drain line to it and they take up less engine bay room, hood clearance aside, and look cleaner. I know they make centrifigal superchargers that don't require pressurized oil supply but they aren't as reliable. Now some of this is based on the fact that I did a custom install on a 5.4 in a crown vic not a 4.6 in a mustang. Yes roots produce more low end torque and are less efficient and have less max power potential but they are more reliable. Look at all the vehicles that come factory supercharged and you'll notice that most are roots blown even though roots are more expensive they are more reliable.

How are you going to say that centri blowers aren't as reliable as a twin screw? If anything centri blowers cause less damage on the engine because of the instant torque they produce where as a centri is a steady build. And when your car is in the show getting parts replaced that means a twin screw isn't as reliable.

 

[brendanryan0510]

Twin screw superchargers are normally more expensive because they usually need a intercooler as they create a lot more heat then a centri. Twin screw blowers produce a lot of torque at low rpms not that anyone races at low rpms anyway but for some people it makes them happier. I went the centri route and am running the Vortech V3 Si blower which is the newest blower vortech makes I am running a intercooler and a small pulley and to me It pulls like a twin screw blower and I love my top end power pulling on cars.

ive been thinking about the v3 si-trim with the after cooler from AM for my fox lately:rollgrin:...

i thought you were twinturbo for some reason though:?:...

 

[brendanryan0510]

As I've posted so many times before, after you add all the expense of any power adder and mods(fuel system, tuning, suspension etc to do it right) you should really consider selling your car and buying the Terminator...

not everybody can afford a teminator and not everybody wants a terminator:nono:....

i got quoted $6.5k for a vortech v3 si-trim with the after cooler for my fox. it includes the blower kit and aftercooler, install, and all tuning. now if the price i was quoted is for the same for a mid milage 99-04 gt, then its only an $6.5k investment.

if you were to sell said new edge, you could probobly get $10k in my area and you still need another $15-$20k for a terminator....

i dont know about you, but i would definatelly rather spend the money for the supercharger and keep the new edge:gringreen. even if you want to add the money you'd need for suspension mods after the supercharger install, you would STILL be under the price of a terminator...

 

[MeanChad1]

ive been thinking about the v3 si-trim with the after cooler from AM for my fox lately:rollgrin:...

i thought you were twinturbo for some reason though:?:...

That is just my avatar that car made like 2000 hp or something like that. But I run a v3 si blower and haven't had any problems. The si blower is so close to a t-trim its not even funny the si will last you forever and its a very efficient blower.

 

[brendanryan0510]

That is just my avatar that car made like 2000 hp or something like that. But I run a v3 si blower and haven't had any problems. The si blower is so close to a t-trim its not even funny the si will last you forever and its a very efficient blower.

yeah...i think im going to do an full engine rebuild and pick it up for next winter. i guess with with 7-10lbs of boost on my 5.0, ill be close to 350-375rwhp.

 

[MeanChad1]

yeah...i think im going to do an full engine rebuild and pick it up for next winter. i guess with with 7-10lbs of boost on my 5.0, ill be close to 350-375rwhp.

I don't think you will that high with that amount of boost. Are you going to be running a intercooler?

 

[86967]

2004 mustang cobra svt
You can score a deal on a Terminator these days...
Your "new edge GT" car with mods still won't have a forged shortblock or six speed or IRS