My v8 Twin Turbo Project firebird
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Junior Member
Joined: Jun 2011
Posts: 16
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From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
My v8 Twin Turbo Project firebird
hey guys sorry to do this but i cant seem to figure out how to make a new thread so ill just do it on here hope it doesnt upset anyone. i am contemplating whether or not to use this kit and i would just like some feed back on whether thi would be a good setup for my 88 firebird formula 305 tpi built. and advice would be nice. thought about upgrading a few things if i have to when i get it. i dont plan on racing. strictly a street car and car show. all for looks but i wand the visibility plus the power. so any advise would be great.
T04E Turbo
· .57 A/R Compressor, .63 A/R Turbine
· 350+ HP Upgrade
· T3 Flange
· 5 Bolt Downpipe Flange
· 3” Inlet, 2” Outlet
Intercooler
· Bar and Plate Design
· Twin Turbo Outlets
Stainless Steel Manifolds
· T304 Stainless Steel Construction
· TIG Welded
· Bottom Mount Orientation
· T3 Flanged
38mm Wastegate
· Utilize 38/35mm Flanges
· Flanges and Gaskets Included
· Designed to Release Gas Efficiently
Intercooler Piping
· 2.5” Diameter
· Trim to Fit Your Application
· Silicon Couplers and T Clamps Included
Oil Cooler Kit
· CNC Machined Aluminum Adapter Plates
· Stainless Steel Braided Lines With 10AN Fittings
· 7 Row Oil Cooler
Oil Feed Line
· Stainless Steel Braided
· 1/8 NPT
· Includes Block Fittings
Oil Drain Line
· Stainless Steel Braided
· 10AN Fittings
Blow Off Valve
· Type RFL
· Aggressive Blow Off Sound
Fuel Pressure Regulator
· Adjustable Pressure up to 100psi
· Fuel Rail Adapter May or May Not be Needed
Stainless Hose Sleeve Kit
· Dresses Up Engine Bay for Race Car Look
Oil Catch Tank
· Catches Crankcase Blow-By Before Entering Intake
· Light Weight Aluminum Design
· Includes Hardware
Boost Controller
· Adjustable 1-30psi
· Ball and Spring Retention
Turbo Timer
· Compact Pen Style
· Programmable Cool Down Period
· Helps to Extend The Life of Turbo
Radiator Slim Fan
· 2.5” Thick
· Helps to Save Engine Space
· Can Replace Bulky Clutch Fans
· Mounting Kit Included
Gauges
· Oil Pressure Gauge
· Water Temperature Gauge
· Boost Gauge
The downpipes are not included what could i use to fabricate them. first time with turbo technology so help is a must!!!
T04E Turbo
· .57 A/R Compressor, .63 A/R Turbine
· 350+ HP Upgrade
· T3 Flange
· 5 Bolt Downpipe Flange
· 3” Inlet, 2” Outlet
Intercooler
· Bar and Plate Design
· Twin Turbo Outlets
Stainless Steel Manifolds
· T304 Stainless Steel Construction
· TIG Welded
· Bottom Mount Orientation
· T3 Flanged
38mm Wastegate
· Utilize 38/35mm Flanges
· Flanges and Gaskets Included
· Designed to Release Gas Efficiently
Intercooler Piping
· 2.5” Diameter
· Trim to Fit Your Application
· Silicon Couplers and T Clamps Included
Oil Cooler Kit
· CNC Machined Aluminum Adapter Plates
· Stainless Steel Braided Lines With 10AN Fittings
· 7 Row Oil Cooler
Oil Feed Line
· Stainless Steel Braided
· 1/8 NPT
· Includes Block Fittings
Oil Drain Line
· Stainless Steel Braided
· 10AN Fittings
Blow Off Valve
· Type RFL
· Aggressive Blow Off Sound
Fuel Pressure Regulator
· Adjustable Pressure up to 100psi
· Fuel Rail Adapter May or May Not be Needed
Stainless Hose Sleeve Kit
· Dresses Up Engine Bay for Race Car Look
Oil Catch Tank
· Catches Crankcase Blow-By Before Entering Intake
· Light Weight Aluminum Design
· Includes Hardware
Boost Controller
· Adjustable 1-30psi
· Ball and Spring Retention
Turbo Timer
· Compact Pen Style
· Programmable Cool Down Period
· Helps to Extend The Life of Turbo
Radiator Slim Fan
· 2.5” Thick
· Helps to Save Engine Space
· Can Replace Bulky Clutch Fans
· Mounting Kit Included
Gauges
· Oil Pressure Gauge
· Water Temperature Gauge
· Boost Gauge
The downpipes are not included what could i use to fabricate them. first time with turbo technology so help is a must!!!
Last edited by Levi_Shears; Jul 10, 2011 at 02:08 PM. Reason: change the name....
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: My v8 Twin Turbo Project firebird
should be ok size for a 305 not looking for alot of power but still enough to break the motor. That a T3/t4 hybrid turbo? Kit is likely full of cheap components but could work. I just dont know anyone using those kits. There are ebay intercoolers and turbos being used with success but dont know about the kits. Still alot of fabrication needed for that build.
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
Yea I've been hard core studying this before I even buy this. I know now all the.little things to check before installation. And ill prolly upgrade some things later. But for now I just wanna get it.on correctly. Im using an installation manual wit a twin Turbo on a 350 it should be about the same except the 350 is a.blow back kit(carbed) im very mechanicaly inclined also with fabrication. The only thing I don't know is where all the lines and hoses go. I've been looking.for.answeres and the only thing I can't figuelres out.is 1 a diagram of all hoses and where they go. And 2 is there anything in this kit im missing? And a reminder. Im not a strip runner strictly street and car shows. I picked this kit cause everything matches my car perfectly. I know everyone says eBay kits suck but for 1200 bucks I know I get what I payed for. But I wanna try and fix the kit and get it too hold. So if I succeed then ill be able to help people.
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
Orr89roc7 they are t3/t4 spool at 1200-1500 rpm and they claim to be hybrid but with those kits you never really sure unless there's a.grant or turbonetics sticker on em. I hope to make and installation guide for.everyone trying.to do.this with a tpi 305 or 350.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
Re: My v8 Twin Turbo Project firebird
if you got the money to spend and want to learn thats not a bad way to start with a budget setup, and with TPI short rpm range, and small 305 cubes a large t3/T4 hybrid "stage III" type turbo wont be too far off from optimal I dont think. They usually in the 48-52mm compressor range, some higher I think. That aint too bad for a mild twin 305 setup. Hard to say tho without more specs on it.
lines and hoses are easy, not much too it. Oil cooler tho you need an adapter on the block, Canton racing makes one that I am using but its not on the car yet. I mocked it up and it works. I just need lines and cooler fittings.
vacuum lines and such are fairly easy too.
lines and hoses are easy, not much too it. Oil cooler tho you need an adapter on the block, Canton racing makes one that I am using but its not on the car yet. I mocked it up and it works. I just need lines and cooler fittings.
vacuum lines and such are fairly easy too.
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Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
Sweet man. It was like a week or two ago I was admiring your setup in the iroc and the good thing about it is I got a 77 4 bolt main 350 I've been dying to throw in it. Just can't seem to blow the 305 lol so if the engine blows im not worried about.it as long as my kit escapes unscathed. Not sure when ill be able to buy this kit. Money is tight and im looking for another job. But when I get it I'd like to connect with ya on some ideas I have on some fabrication. Plus first time with Turbo technology def gonna need someone to help me. Lol
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Joined: Apr 2008
Posts: 10,401
Likes: 5
From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: My v8 Twin Turbo Project firebird
a pair of those turbos will support alot more power then u will make with the 305.
i will be using a pair of those on my 355 they should be capable of 950-1k flywheel hp
the headers are junk and wont fit a 3rdgen if they are the foward facing headers, and the headers that go up will require some cutting of the hood
if u buy that stuff seeratly u could get a air of turbos and wastegates for around 330 bucks and then make ur own headers
my headers cost me about 60 bucks in materials heres a unfinished pic of the driver side

i will be using a pair of those on my 355 they should be capable of 950-1k flywheel hp
the headers are junk and wont fit a 3rdgen if they are the foward facing headers, and the headers that go up will require some cutting of the hood
if u buy that stuff seeratly u could get a air of turbos and wastegates for around 330 bucks and then make ur own headers
my headers cost me about 60 bucks in materials heres a unfinished pic of the driver side

Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
i just like the whole kit cause of the color. my car is sigficant blue. which brings me to my next? how did you get that inake and valve cover those colors? and can i copy?
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
was it hard getting rid of the engine bay clutter? and does it still run the same with out it?
Joined: Jun 2001
Posts: 8,028
Likes: 93
From: DC Metro Area
Car: 87TA 87Form 71Mach1 93FleetWB 04Cum
Re: My v8 Twin Turbo Project firebird
Otherwise I don't know of any ebay kit that will just bolt on...
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
700hp is all that im looking for in this kit. well over enough for my first turbo build. when i start to learn more then ill upgrade when i drop the 350.
Supreme Member
iTrader: (1)
Joined: Apr 2008
Posts: 10,401
Likes: 5
From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: My v8 Twin Turbo Project firebird
From that description you can't really tell what cold side is on them, but no matter what you won't push 1000hp through a pair, the .63 hot side (If I remember right they have 2.5" outlets, I sold off the last .63 T3 that I had YEARS ago) will never move enough exhaust out even if the compressor can feed the intake side. I'd be very suprised if they will move much over 700hp worth.
Otherwise I don't know of any ebay kit that will just bolt on...
Otherwise I don't know of any ebay kit that will just bolt on...
the stage 3 turbines keep up fairly well but backpressure will start to be an issue, but u can bolt 3 inch downpipes to these turbos,even better if u swap to a gt35 style turbine housing with a 3 inch outlet
levi the valve covers and intake are spray painted with 2 metalic base coat and then a translucent blue should be better pics in my t6 build thread
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
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From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
thats kool ill keep that in mind for the 350. and thats a really kool color. did you have to wetsand it at all?
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iTrader: (1)
Joined: Apr 2008
Posts: 10,401
Likes: 5
From: Utah
Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: My v8 Twin Turbo Project firebird

alls i did was clean the syrface sray the base coat then spray the blue and thats how it came out
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
wow. that thing is totally sweet. im going to have to steal that idea. this is why blue is my goal. this is what it looked like before i started sanding. i wanna either go the same color or that color you have on that stuff.
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
here is the whole kit. just so you can see it. i love the color of it so much.
Thread Starter
Junior Member
Joined: Jun 2011
Posts: 16
Likes: 0
From: Keyser WV
Car: 1988 firebird formula
Engine: 305 tpi built.
Transmission: 5 speed jasper
Re: My v8 Twin Turbo Project firebird
i thought about making my own headers too. but i wanted something to look at cause i like their setup.
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Joined: Mar 2012
Posts: 51
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From: suburbs of chicago
Car: subaru wagon, two formula's
Engine: tpi 350's
Transmission: 700 r4
Axle/Gears: 3.27 posi
Re: My v8 Twin Turbo Project firebird
I know this is an older post, but I am doing a twin turbo setup on my formula 350 currently a solid 275hp TPI305 temporary motor till my 357 forged motor is done. I was going to buy this set that dumps the turbos towards the front right next to the serpentine belts, may have to remove the passenger side bracket for the serpentine setup in my 89, but I'll just run a shorter belt and barely get it on, by using a socket and ratcheting the alternator to get the belt on. What kind of manifolds are on this motor? Did they go far to the side of the head, then dumped towards the top? I was going to buy a similar kit for mine. Have you run the car at the track since this setup was finished? I'm very interested, thanks
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