PARTS FOR TURBO SET UP???what do you need?

[redgem]

ok, ive finally got the $$$ to turbo my gemi...
pls help me out here on a list of everything you/i would need to install one yourself, and then get it tuned by a pro... as i have no idea of all the parts you need

1. i need a g200 engine or 2.6L if anyone has one 4sale
2. manifold for the turbo
3. turbo (pick one-e.g t28)
4. intercooler
5. higher pressure fuel pump
6. webbers?
7. blow off valve/wastgate (are they the same thing?)
8. all the piping
9. free flowing exhaust,+ extractors? like 2.5 - 3 inches thick

thanks for your help...

[S N 3 A K Y]

1. i need a g200 engine or 2.6L if anyone has one 4sale

Depending on the state you live in, the 2.6 4ZE1 will neccesitate you to befriend a reputable engineer. As registering one with forced induction is a reasonably large obsticle in some states - not impossible, but difficult.

2. manifold for the turbo

I'd suggest a custom item, a Piazza one will see you through but isn't all that and a bag of chips.

3. turbo (pick one-e.g t28)

There's a smorgasboard of turbos to pick from. I would personally choose something bigger than a T28, but it comes down to how much boost you want to run, where you want the boost to come on in the rev range, how much cash you can throw at one, whether you want to run an internal or external wastegate, and a whole heap more.
A turbo professional would be the best source of advice for you on this one. Alternatively Gene can give you a small list of possible suitable candidates.

4. intercooler

Depending on whether you will be running a carb blow through or suck through system, or the original 4ZE1 E.F.I system will determine whether an intercooler can be used.
Again a smorgasboard of makes and models are open to you. The two main types being bar & plate or tube & fin, a custom item would be best to suit/fit the front of a Gemini.

5. higher pressure fuel pump

Again depending on your fuel system, you will need the appropriate pump for your combo. A VL turbo pump is a decent unit for an E.F.I sytem, there have been talks about Camira pumps being similar or a worthy upgrade. I dont know anything about them, but i'm sure someone here knows the dealio with them.
If you are running a carb system, a higher pressure pump will still be necessary, but a rising rate fuel pressure regulator will also be necessary to maintain appropriate pressure throughout the boost/vacuum range.

6. webbers?

A pair of 42mm, 48mm or 50mm Webers would be a nice addition, however a single 34ADM or a single 350 Holley could supply the required fuel. But it depends on how much boost and horsepower you want to achieve.
I would personally choose to adapt an E.F.I system for a boosted application, but it ultimately isn't necessary. E.F.I does however offer much better fine tuning of forced induction.

7. blow off valve/wastgate (are they the same thing?)

No, they are not the same thing. Although i have seen a handful of engines utilizing twin B.O.V's to regulate peak boost.
A blow off valve is 'basically' an accesory for turbo applications to help keep the turbo within it's efficiency range whilst changing gears or sudden closing of the throttle. They also have the added benefit of extending the life of your turbo, by minimising back-pressure on the compressor.
A wastegate on the other hand is a part of the turbos boost regulating system, it's job is to keep a certain maximum allowable boost to be fed by the turbo's compressor. When boost hits a certain PSI/Bar, the wastegate opens to bleed excess exhaust gas from flowing through the turbine.
The two main types being internal & external items, an external item is normally considered the most efficient. I wont go into it to keep an already long post a little shorter. Someone else may be nice enough to fill you in on this subject.

8. all the piping

9. free flowing exhaust,+ extractors? like 2.5 - 3 inches thick

A free flowing exhaust is a turbo's best friend (well that and an intercooler, good fuel & tuning), around 3" in diameter would be nice, but no bigger unless you are chasing ludacris horsepower figures that a G200 or 4ZE1 were never meant to see. By that, i dont mean using a larger diameter will increse your BHP considerably, just that over 3" would be considered overkill unless you build an absolute monster of an engine.
Extractors aren't used in turbo applications, put simply the turbo exhaust manifold does that job.

You will need a set of suitable pistons for durability under boost, forged items are best but not entirely necessary. Some hypereutectics may be sufficient, but again it comes down to the 3 main variables Cash, Boost, Horsepower...
Telling us how you want the engine to perform would help with your answers, are you after a little more power, a lot, top end screamer, torque on tap, 7000rpm+ action, early boost, lag with screaming mid to high end power etc. etc. ????? Ultimately you can bolt a small T25 on with no internal engine mods, run 7-10psi and pick up a nice amount of streetable power.
I also suggest that you have the engine balanced and blueprinted.
There may be other items you will need that i will leave others to point out - again to keep the post shorter.
But before i hit the reply button, i will also point out that you will also need to turn your attention to the drivetrain components. An upgraded clutch will be a must, the gearbox will need attention, and your diff will need an upgrade.

Then there's the brakes..........


S N 3 A K Y

[GEMTEC]

Yeah! what he said!

[Gene FJ20DET]

8. all the piping ------ 2.5" max

9. free flowing exhaust,+ extractors? like 2.5 - 3 inches thick ------ err.. u use extractors on a turbo set up, 2.5 - 3" zorst i would use 3" incase of future upgrades
_________________

[TGemi1]

camira fuel pump is the same as a n/a vl one.

chris...

[redgem]

u listed everything, thats exactly the kind of info i needed, im surprised no one was a smart arse about the question, thing must have changed a bit since last year

thanks again

-adrian