N/A conversion to TT

[Braincrater]

I found 2 3000GT turbos for 300 clams on ebay and was wondering if I could somehow put them on my RT, or would I have to buy a turbo kit off of GTPro. If I can put the turbos on my RT how hard is it and how much would it cost?

[detpac]

You can do it but it may be more than you want to do. There is a long list of items you must have inorder to do this. I will see if I can find the list and post it.

[detpac]

Here it is

Main Components:
-2 Turbos
-Right Exhaust Manifold
-Left Exhaust Manifold
-Front 02 Housing
-Front Precat
-Rear Precat/O2 Housing
-Twin Turbo Downpipe (depending on Precats)
-2 Intercoolers (Right and Left)
-All Intercooler Piping Including Ypipe
-Intake T Pipe
-Intake Pipe to Front Turbo
-Intake Pipe to Rear Turbo
-Larger Fuel Injectors (TT 360cc Injectors)
-Twin Turbo Fuel Pump w/ Fuel Pump Assembly (Walbro 255lph Fuel Pump)
-Thermostat Housing
-Stock Blowoff Valve or Aftermarket
-TT Plenum (not necessary but doesn't hurt)
-1 EGR Block off Plate (Get 2 if your using TT Plenum)
-Testpipe 2.5" diameter, w/ O2 Bung Welded 2-3 inches from one of the sides
-6 NGK Copper Sparkplugs
-Twin Turbo Front Motor Mount Bracket
-Lower Compression Pistons (optional)
-All Heatshields (optional)

Oil and Cooling: (All from Twin Turbo cars)
-Oil Cooler
-Oil Cooler feed and return lines w/ Eye Bolts
-oil filter bracket (Get new or from a newer car)
-Joint for the Rear Turbo Feed Line (MD161392)
-Front and Rear Oil Feed Lines w/ Eye Bolts (Get New)
-Front and Rear Oil Return Lines
-Front and Rear Water Coolant Feed Lines W/ Eye Bolts
-Front and Rear water coolant Return Lines w/ Eye Bolts

Electronics and Boost:
-Boost Guage
-EGT Guage
-Air/Fuel Guage
-Manual Boost Controller or Electronic Boost Controller
-SAFC or equivilant fuel Management Computer
-Knock Sensor (not necessary)
-Water Injection (depending on what compression pistons)
-Fuel Injector Resistor Pack (Optional)

Gaskets:
-Exhaust Manifold Gaskets (2)
-Front Turbo to O2 Housing Gasket (1)
-Rear Turbo to Precat Gasket (1)
-Front O2 Housing to Precat Gasket (1)
-Front Precat to Downpipe Gasket (1)
-Rear Precat to Downpipe Gasket (1)
-Downpipe to Cat Gasket (1)
-Oil Return line Gaskets (4)
-Oil Feed line Copper Gaskets (7)
-Water Feed/Return Line Copper Gaskets (8)
-Oil Cooler Feed/Return Line Copper Gaskets (4)
-Oil Filter Bracket Gasket (1)
-Rear Precat EGR Gasket (1)
-Plenum EGR Gasket (1) - OPTIONAL
-Throttle body Gasket (1)
-Plenum Gasket (1)
-Thermostat housing to Header Gaskets (2)
-Exhaust Manifold to Turbo Gasket (2)
-Turbocharger Seal Ring (2)

Extra Material:
-4mm Vacuum Hoses
-RTV Silicone for Oil Pan
-Teflon Paste and Teflon Tape
-Bolts/Nuts for different stuff
- All of the exhaust components have C-Nuts so I recommend getting them from the dealer so stuff doesn't come lose

[3kGTSL]

Detpac.. i don't know what is worst. The fact that you know all this.. or the fact that u save all this in a dark dark place on your computer :) ~

[Braincrater]

Geez thats a lot of stuff. How much do you think it would cost for me to do that?

[kdog109sd]

I have a TT conversion on my 1995 FWD 3kgt. I absolutely love it. Pretty much everything listed above is what you need to do it.

[detpac]

It costs alot.

[Braincrater]

Originally posted by kdog109sd
I have a TT conversion on my 1995 FWD 3kgt. I absolutely love it. Pretty much everything listed above is what you need to do it.

How much did it cost you, and did you do the conversion or did you get someone to do it for you?

[kdog109sd]

it cost me quite a bit. I did the work by myself and I took advice from members that had done it before infact all of us still exchange information that will help each other out.

[Braincrater]

How much is "quite a bit" if you dont mind me asking.

[IronFish]

I have heard anywhere between $7000-$8000. I could be off though. I myself (if I keep my car) am going to look more into supercharging it. It is a little cheaper and they seem to be getting improved set-ups for our cars.

[Braincrater]

Yeah I thought about supercharging my car but turbos are supposed to be more efficient than superchargers, but if it costs 7000-8000 dollars to put turbos on there then i will just prob get a supercharger.

[kdog109sd]

Mine Cost about $7000 dollars to do the conversion. But mine included a complete engine overhaul. A lot of people who end up doing the conversion don't spend more than 3k on it. Leland from 3sx did his for 1200 or something like that. The price depends on you! Where you get the parts and how much you spend on them.

[wannabeStealth]

hmm twin turbo? dont mean to be an ass, but... you guys wasted your money, i may not own a stealth or 3000gt, i own a turbo v6 camaro right now, but i am going to buy a stealth r/t sport soon, but to put twin turbo on a car that isnt twin turbo costs too much and is not much more infact it may be even less hp gain than a single turbo, if you notice many of the supras, 300zx and 3000gt owners convert to a single large turbo.

You guys could have put a single T55 on your car for less than $3500 and make just as much power as the twin turbo conversion setups, if not more. the twin turbo may have a slighty better but small advantage over a one single large, because 2 smaller turbos will spool a maybe little tiny faster, but not by much, one large single can spool just as fast if set up correctly and in the high end the single large will be way more efficient, thus creating alot lower 1/4 times.

[Shawn96VR-4]

Originally posted by wannabeStealth
hmm twin turbo? dont mean to be an ass, but... you guys wasted your money, i may not own a stealth or 3000gt, i own a turbo v6 camaro right now, but i am going to buy a stealth r/t sport soon, but to put twin turbo on a car that isnt twin turbo costs too much and is not much more infact it may be even less hp gain than a single turbo, if you notice many of the supras, 300zx and 3000gt owners convert to a single large turbo.

You guys could have put a single T55 on your car for less than $3500 and make just as much power as the twin turbo conversion setups, if not more. the twin turbo may have a slighty better but small advantage over a one single large, because 2 smaller turbos will spool a maybe little tiny faster, but not by much, one large single can spool just as fast if set up correctly and in the high end the single large will be way more efficient, thus creating alot lower 1/4 times.

Your information is flawed. No, most 3000GT/Stealth owners do *NOT* convert to a single turbo. MKIV can easily due to their inline 6. Having dual exhaust manifolds making it difficult to do. Also, smaller twin turbos have their benefits with quicker spool times. It makes more sense to have b00st at the launch and get a good launch (considering 3/S TTs are AWD) whereas the MKIV is RWD and doesn't need the HP right on the launch as much.

I also disagree with your "maybe a little tiny faster". Many many many single MKIVs have run 13s and 12s because it takes like 5-6K RPMS before full boost. It's not as easy as you think to get the "right" setup to get that full b00st down in the powerband. If this was the case, I would not go to the track and see a 500HP MKIV run a low 13 or upper 12 :)

As far as converting the NA model to TT, just buy the friggin TT. It's really really not worth it specially if you need to ask what parts need to be acquired to do this job. The engine is complicated enough than to worry about compression, fuel, and overb00sting issues.

-Shawn

[detpac]

Originally posted by wannabeStealth
to put twin turbo on a car that isnt twin turbo costs too much and is not much more infact it may be even less hp gain than a single turbo, if you notice many of the supras, 300zx and 3000gt owners convert to a single large turbo.

You guys could have put a single T55 on your car for less than $3500 and make just as much power as the twin turbo conversion setups, if not more. the twin turbo may have a slighty better but small advantage over a one single large, because 2 smaller turbos will spool a maybe little tiny faster, but not by much, one large single can spool just as fast if set up correctly and in the high end the single large will be way more efficient, thus creating alot lower 1/4 times.

OK. Having a TT 3/S car and racing a single 2JZ T88 Supra I have found issues with your theory. My car at 6000 RPM launch has left almost every car at the line by 3 car lengths. My turbos have spooled quickly enough to have almost a half track lead on these RWD cars. The benefit to a single turbo is in the top end. If I trap at 108, they are trapping at 118. I can still beat most cars down the track with power or launch.

A big single turbo will have lag issues. Bigger twin turbos do not have that much of a problem. Most singel turbo monsters want to race open highway for speed. That is fine. But when you are 1/4 mile racing, it is never how fast your car is, but how quick it is. True performance is counted in so many different ways. Find what you like and go for it. I like 1/4 mile drag racing and AWD, while it is a power eater is also one of the best feeling launches you will ever experience as well. Trying to launch on 2 wheels is difficult enough. 4 makes it that much easier and better in my opinion.

[Shawn96VR-4]

Originally posted by detpac


OK. Having a TT 3/S car and racing a single 2JZ T88 Supra I have found issues with your theory. My car at 6000 RPM launch has left almost every car at the line by 3 car lengths. My turbos have spooled quickly enough to have almost a half track lead on these RWD cars. The benefit to a single turbo is in the top end. If I trap at 108, they are trapping at 118. I can still beat most cars down the track with power or launch.

A big single turbo will have lag issues. Bigger twin turbos do not have that much of a problem. Most singel turbo monsters want to race open highway for speed. That is fine. But when you are 1/4 mile racing, it is never how fast your car is, but how quick it is. True performance is counted in so many different ways. Find what you like and go for it. I like 1/4 mile drag racing and AWD, while it is a power eater is also one of the best feeling launches you will ever experience as well. Trying to launch on 2 wheels is difficult enough. 4 makes it that much easier and better in my opinion.

Extremely-well written. It's amazing how much bad information on the Internet exists. I can't believe someone would assume the benefits of an AWD launch with a big, laggy single-turbo. Just doesn't make sense.

-Shawn

[Mr.Question]

from what i can see it will be hell of hard doing anything to the 3000gt. I am the newest member here. I had an Mk4 and crashed it. So now I am will you guys. From what was said before it is very true. Mk4's 300zx's are much easyer to turn Na to TT. But if it cost so much to do the swap, then what the hell are us Na guys suppose to do. Please do just say bpu. Wheres the turbos =]. But my main question is how come in your list above there is nothing about changing 5speed to 6speed AWD. Anyone know anything about how much and how hard?

[detpac]

Approx $1800 for parts if you can get the 6 speed tranny and differential pretty low. Difficulty is not that bad.