What S/C fits my 1991 Z34 lumina

[RedZMonte]

FMU??

Where have ones been attaching the oil feed and return lines?

You need a different Map sensor to run boost and I suppose a different chip program.

Ben, Can you help with a chip for a turbo on a 3.4 dohc?????

FMU=Fuel Management Unit (boost dependant fuel pressure regulator.. IE. Vortec FMU)

if you chip it you can run a 2bar or 3bar if your chip is setup for turbo otherwise run it as is and if you get a code use a check valve.

Oil feed is from the oil pressure sensor. and return you have to drill the pan and add a bung for the oil dump. the oil dump must be toward the top of the pan above the oil level cause the oil return is gravity fed and must drain freely back from the turbo.

[lumina4doorsleeper]

A different MAP sensor and chip are not necessary for a basic kit. He can use either a MAP clamp or a check valve before the MAP sensor. The FMU will take care of fueling under boost. For ignition, you're assuming that the factory left some safety margin, you're running better fuel, and that you are running low boost.

My feed line for the FMU came from the fuel rail and the return went straight back into the stock aluminum return line.

Tim

how much would one of these setups cost??!

[grandprixgtp_91]

well to give you an idea of what the whole setup costs, i am in the middle of putting a turbo on my 1991 Pontiac Grand Prix GTP with a 3.4L DOHC and a 5 speed transmission, here is what i got so far:

- Turbonetics 62-1 turbo
- Turbonetics Evolution wastegate
- Turbonetics Raptor blow off valve
- Polished aluminum pipe with adapter for the blow off valve
- Complete braided stainless oil feed and return line kit with fittings
- 22" x 6" x 3" same side intercooler
- AEM wideband O2 sensor and guage kit
- Brand New TGP 2 Bar Map sensor from GM
- 42 Lb/Hr Ford Racing fuel injectors
- Chip adapter for the ecm
- Chip for the chip adpter
- Real time emulator for tuning on the fly
- Various licenses and software and custom files needed
- Various weldable flanges and gaskets
- Another front exhaust manifold to put on the rear head to eliminate the downpipe hole

all of the stuff listed above I have, and cost probably about $3000 so far. but i still need more

I need

- Aluminum piping for the intercooler
- Silicone adapters and clamps
- Exhaust piping to make a custom exhaust crossover and downpipe
- Air inlet flexible piping for turbo
- K&N cone filter
- Battery relocation to the trunk
- Colder spark plugs
- Boost guage
- Dyno time when everything is finally installed

i expect to spend probably close to another $1000 dollars, if there is anything else i forgot to put in my list of stuff needed anybody can add, this is all just off the top of my head. im sure ill need a new clutch too and sticky tires to make the car move.

Not to mention all the long nights staying up doing research on this and trying to tune the car and making all the parts custom, there is lot of time involved. so unless you have the cash to give to a company to do this for you plus the down time of your car, get ready for alot of work and headache. but from what i have heard the results are well worth putting a turbo on a 3.4L DOHC

but that is a really good idea of the parts you will need and how much it will cost plus i got alot of my more expensive parts off ebay to save money, everything is brand new and i bought all from dealers so warranty is still there, i would highly suggest not buying used parts.

Jake

[RedZMonte]

how much would one of these setups cost??!

my initial setup cost about $3000-$3500. now i have larger exhaust and OBDII. the initial install and parts are the most expensive.

S