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3.8L v6 supercharger? want one, but need tips Rate Topic: -----

#1 User is offline   dividedwefall 

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Posted 13 October 2007 - 12:14 PM

i have a 1996 3.8L v6, and i want to supercharge it. they make a supercharger for this size engine, but its for the fwd grandprix (gay).. i just want a "sleeper" kind of firebird, tht could somewhat keep up w the trans ams. ne tips on wat i should do, or if someone has this already, hows it workin out?
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#2 User is offline   FBN Firebird Nation 

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Posted 13 October 2007 - 01:27 PM

How about an STS rear mounted turbo?
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#3 User is offline   dividedwefall 

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Posted 13 October 2007 - 02:18 PM

turbos are awesome and all, but i want the american muscle kinda feel ya kno? maaad burnouts :D
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#4 User is offline   FunkZ 

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Posted 13 October 2007 - 04:27 PM

There has been a Powerdyne centrifugal supercharger kit for the 3.8 Fbody available for years. Pretty sure RK Sport carries it and undoubtedly many other online Fbody vendors.
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#5 User is offline   97blackformula 

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Posted 13 October 2007 - 05:31 PM

View Postdividedwefall, on Oct 13 2007, 12:14 PM, said:

i have a 1996 3.8L v6, and i want to supercharge it. they make a supercharger for this size engine, but its for the fwd grandprix (gay).. i just want a "sleeper" kind of firebird, tht could somewhat keep up w the trans ams. ne tips on wat i should do, or if someone has this already, hows it workin out?



i just picked up a fwd grandprix supercharged gay, but i dont think that it will bolt up to your motor, it looks nothing alike. but car goes real good. 14.9 or so stock.
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#6 User is offline   1tinindian 

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Posted 13 October 2007 - 07:04 PM

The S/C GP and Bonnevilles have lower compression pistons than a normally aspirated 3800, so when they start to make boost, they aren't damaging the engine.
You would have to lower your compression to make it like the factory S/C 3800.

IMO these cars are not gay.
They make for a very nice daily driver with that little extra kick that most other cars don't have.
My wifes car is a S/C Bonneville with over 150,000 miles, and I'm still amazed with its performance every time I get behind the wheel. One of the more fun cars we've owned over the years.

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#7 User is offline   97blackformula 

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Posted 13 October 2007 - 10:12 PM

View Post1tinindian, on Oct 13 2007, 07:04 PM, said:

The S/C GP and Bonnevilles have lower compression pistons than a normally aspirated 3800, so when they start to make boost, they aren't damaging the engine.
You would have to lower your compression to make it like the factory S/C 3800.

IMO these cars are not gay.
They make for a very nice daily driver with that little extra kick that most other cars don't have.
My wifes car is a S/C Bonneville with over 150,000 miles, and I'm still amazed with its performance every time I get behind the wheel. One of the more fun cars we've owned over the years.

Leon


i agree, i just purchased my GTP last week, and i cant believe how nice of a ride it is, unreal how nice it is, but the Regal GS, GSX, bonneville SSEI, and the Grand Prix GTP, all came with the supercharger, very nice and very fast for factory output. thanks for backing me up :beer:
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#8 User is offline   KDF 

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Posted 14 October 2007 - 04:47 PM

View Postdividedwefall, on Oct 13 2007, 04:14 PM, said:

i have a 1996 3.8L v6, and i want to supercharge it. they make a supercharger for this size engine, but its for the fwd grandprix (gay).. i just want a "sleeper" kind of firebird, tht could somewhat keep up w the trans ams. ne tips on wat i should do, or if someone has this already, hows it workin out?



Pricey but real nice, this will give you all the power you want.
http://www.streettrendsinc.com/Merchant2/m...tore_Code=FBODY
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#9 User is offline   motownsniper 

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Posted 15 October 2007 - 04:04 AM

1. supercharger won't fit. been there tried that.on front wheel drive it's under the hood, on 'birds motor sits too far back and you would have too cut up car right where your windshield wipers mount to make enough room. 2. you need low compression pistons, no the 3.8 supercharged ones won't work, they are a different weight and you would have to pull the crank to have it reweighted and balanced. 3. besides a different computer, the supercharged engine has a different pulley system and has a totally different crank sensor, good luck tryin to mount it. i gave up on it and workin on tuboing mine, just not much time on my hands.
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#10 User is offline   Ivan 

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Posted 29 October 2007 - 04:05 AM

There use to be a supercharger kit available but not anymore. There is a guy who did put a supercharger on a Pontiac Firebird 98, you can see it at http://www.firestorm98.com/index.html. That car really cooks. Actually I'm working on supercharge my firebird 98, but I'm working very easy because I'm doing several modifications and I use my car for everyday use. I buy a Thomas Knight belt drive turbo wich is a supercharger, this is not a kit, I have to fabricate the base to attach it to the motor. This one is initially set to put 5 psi on the intake.

By the way I understand that the grand prix supercharger won't fit the firebird because the firebird motor is fit deep inside the chasis and there is no space on top to fix that kind of superpercharger.

When my car is finished I will show all the information and photos on FBN.

Ivan

Attached File(s)


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Firebird 1998 3.8 V6
Pace Setter Ceramic Coating Headers
Magnaflow Catalytic 3"
Magnaflow Exhaust 2.5"
SLP Air Lid
SLP Cold Air Intake
180 Deg Thermostat
MSD 8.5 Super Conductor Wire Set
Jegs Super DIS Coils
Bosch Platinum Iridium Fusion Sparks
K & N Air Filter
HP Tuner Tuning
Hotchkis Strut Bar
3.42 Ring & Pinion

Firebird TransAm WS6 2002
SLP 160 Deg Thermostat
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Borla Cat Back
Carbon Fiber Air Lid
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Hotchkis Strut Bar
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#11 User is offline   Dan160 

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Posted 29 October 2007 - 08:36 AM

good luck man, I cant wait to see the result
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#12 User is offline   87and97Birds 

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Posted 29 October 2007 - 09:32 AM

definitely let me know what the result is.
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#13 User is offline   superman 

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Posted 29 October 2007 - 12:19 PM

i know u said u dont want a turbo, but i got a friend who put the sts turbo on his 2001 firebird, and he can drop it in 3rd doing 65 and and let the tires loose. imo, i would get the sts turbo, thats wat im going to do
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#14 User is offline   TheDon619 

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Posted 29 October 2007 - 01:19 PM

im going to get the sts for my v8 break em loose at 65 :24happybirthday:
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#15 User is offline   motownsniper 

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Posted 30 October 2007 - 11:40 AM

i tried putting one in the back,went from a .63 turbine down to a .42 and am running a large .60 compressor on a garrett t4 body and just couldn't get more than 6psi. tried larger and smaller piping. now trying to fab exaust to mount under the hood, i haven't driven my bird in like 3 weeks because i had some copper head gaskets made cause i aim to run between 12-15psi.
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#16 User is offline   White97Bird 

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Posted 26 November 2007 - 01:08 PM

View PostKDF, on Oct 14 2007, 04:47 PM, said:

Pricey but real nice, this will give you all the power you want.
http://www.streettrendsinc.com/Merchant2/m...tore_Code=FBODY


So is this available or not and has anyone had experience with it. Also would it be smog legal?
Upgrades: Slp CAI, Magnaflow 2.5" exhaust, Magnaflow high-flow 2.5" cat, Pacesetter Headers, custom transmission shift kit, BMR Shock tower brace. Brand new engine.
In the future: suspension upgrades any suggestions?
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Posted 27 November 2007 - 06:53 AM

There are turbo guys that can beat Vettes, just keep that in mind. Dunno about the STS turbo but guys are beefin up the motors and mounting garrett turbos up front. There are V6 boards with a lotta info on this.
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Posted 14 January 2008 - 07:03 AM

View Postmotownsniper, on Oct 15 2007, 06:04 AM, said:

1. supercharger won't fit. been there tried that.on front wheel drive it's under the hood, on 'birds motor sits too far back and you would have too cut up car right where your windshield wipers mount to make enough room. 2. you need low compression pistons, no the 3.8 supercharged ones won't work, they are a different weight and you would have to pull the crank to have it reweighted and balanced. 3. besides a different computer, the supercharged engine has a different pulley system and has a totally different crank sensor, good luck tryin to mount it. i gave up on it and workin on tuboing mine, just not much time on my hands.


The GTP supercharger will indeed fit on an f-body. It just takes a little customizing. It's much easier on the 96-98 cars because they kept the cable driven throttlebody. A user on another forum named "Merlin" has done the swap and it works quite well. So far his best time is a 13.6 on a 5spd just running a GTP motor with a cam. I think he has all of $500 invested in the project. Granted he did a large amount of the fabrication himself. There are a couple people now trying to take that swap and do some things to make it easier so it becomes nearly a bolt-on type project.
~1999 Silver Firebird 3.8l v6~
Project Incognito


~2000 White S-10~
Stock 4.3l v6, A4, 146k miles
DD and parts runner.
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