TURBO FOR 93 GSX

I HAVE A 93 GSX AND I NEED TO BUY A TURBO FOR MY CAR. IM LOOKING AT THE '' MITSUBISHI EVO III BIG 16G'' . IS THIS A GOOD TURBO? AND WILL IT BOLT RIGHT UP TO MY CAR WITH ABSOLUETLY NO MODIFICATIONS? AND WHAT DOES IT MEAN BY PORTING AND CLIPPING IT?

yes it will bolt up.

When internally gated the turbo has boost creep, apparently the wg flapper cant release the exaust gas fast enough which causes overboosting. If you going for a stock setup get it with the ported exaust housing and all.

For a direct fit i am not sure i dont own a 4g63, I think a kit is needed but most places that sells them modernperformance, sbracing, machv sell it as an entire kit.

Yes it is a good turbo for the money. Personally I would go with a disco potato but its more expensive and dosent produce the same peek horse power, but its a BB turbo so theres very little lag. But with the EVO III a good fuel system and proper tuning people have been turning out impressive dyno numbers and track times.

http://www.extremepsi.com/store/customer/product.php?productid=16296&cat=426&page=1 DOES ANYBODY KNOW IF THIS TURBO WILL COME WITH THE WASTEGATE?

WHICH IS BETTER. INTERNAL OR EXTERNAL WASTEGAE?

yes it does come with the wasetgate, asking whish is better is well complicated. It depends on the application, the setup of the application and so forth.

For stock/ low boost levels the internal can be used sucessfully. Where so can the external. The external howere can provided solid boost pressure continusly if the manifold is constructed correctly. If the manifold favors the wastegate you get more percise boost pressure and consistanece. But you get a slower spool time, where if the manifold favors the turbo you get a quicker spool time but that may result in boost creep. SO its a catch 22. Also the external is much more technical but the plus side to that set up is its like a boost controler but more reliable. You can adjust the boost pressure to what you want depending on the WG some come at a pre set limit like the Star stage one turbo kits for the 420a. Also with a external WG need to be recirculated for DD where tial ones cant be.

Huh?

The top one is an internal gated turbo, notice the yellow actuator bolted onto the compressor housing. It has an arm hooked up to it that conrtols a flapper inside the hot sid of the exaust. When the boost reaches a certian level dicatated by the spring pressure in the actuator(yellow thing) it pushes the arm which opens the flapper letting exaust gas bypass the compressor wheel thus keeping the boost at a certian level.

On the bottom is a external gated setup. The external gate is like a bov. Once a certian pressure is achieved the exaust gas is released via the valve inside it. This can be vented under the hood or recirculated(like a bov) into the rest of the exaust past the turbo. An external WG is alot more complicted(thats What i was getting at earlier) the construction of the manifold and choice of spring in the wastegate all play a crucial part in the way that your system will perform.



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first....is your Caps Lock key broken? you might want to get that fixed.

second... read this... http://auto.howstuffworks.com/turbo.htm . it seems that you don't know much about turbos and how they work. you first need to learn about them before modding them.

third....a 1G GST/GSX does not need a kit to work with the 16G. The 2G GST/GSX does.

i think you need to also learn what a wastegate is and how it works.

me, personally, i would go with an external wastegate.

dude link is broken lol :)

1. my caps lock isnt broken

2. i want to make sure this turbo will fit my car b/c i bought one for it and it was the wrong one, so i dont want to make the same mistake twice.

3. im just getting into the scene about tuning and none of my friends know nothing about this. so, i just want to make sure what im doing before i go and dump a whole lot of money and buy the wrong things.

quote:

ORIGINAL: get435

dude link is broken lol :)

not really. the period at the end of the sentence got add to the link...which made it invalid. but anywho...fixed.

and this is taken directly from RRE's website.

quote:

ORIGINAL RRE

MHI EVO 3 16G Turbo
This is the stock turbo from the Lancer EVO III. Outwardly they look like any other 16G. They use the same compressor housing, TDO-5 exhaust wheel, and the same 7cm volume exhaust housing. Until you pop off the compressor housing... HELLO! Big Wheel. Flows 550 cfm vs. 505 cfm for the regular 16G.

The normal 16-G compressor wheel is 1.83" at the inducer and 2.36" at the exducer. The Big 16-G is 1.89" at the inducer and 2.68" at the exducer. That is just over 5/16" (8mm) larger than the normal 16-G exducer and the same size as the GReddy 18-G (inducer diameter is only .10" smaller than a 18-G). Direct bolt on for 1G cars, you need a standard 16-G Install Kit for 2G cars.

i will also add this from RRE since you stated that you are new to this...

quote:

ORIGINAL RRE

This turbo is made by Mitsubishi Heavy Industries. The TDO5-16G with the 7 cm exhaust housing will hold over 20 pounds of boost if you ask it to. If you promise to keep the boost down you can use the stock fuel system other than an upgraded fuel pump. To use it's full potential however, you will need at least 550cc injectors and some form of electronics to control them (Apex AFC). The stock 1G turbo flows 405 cfm vs. the 16G at 505 cfm. With the proper porting of the exhaust manifold, Turbo, and O2 sensor housing, you will hardly notice any increased lag. You will however feel tons of top end power!

or a dsmchip.com chip to control the injectors which is alot easier for someone who is just getting into this.

quote:

ORIGINAL: eclipsed4u
me, personally, i would go with an external wastegate.

x2 when I get a project car going its going to be a disco potato with a tial WG and a custom manifold. I want people to think that the world is ending when I got wot.

quote:

ORIGINAL: slow420a

quote:

ORIGINAL: eclipsed4u
me, personally, i would go with an external wastegate.

x2 when I get a project car going its going to be a disco potato with a tial WG and a custom manifold. I want people to think that the world is ending when I got wot.

i would have the wastegate dump tube re-routed back into the exhaust.

all you need to know it yes, that turbo will bolt up directly, and it is a great first upgrade for a 4g63. read up on roadrace, it is a great source of info for eclipses. slow, as for the external wastegate, it is definitely not needed for this turbo, it would be kinda silly for such a small turbo. Boost creep is hardly ever an issue for a 16g but when it is, simply porting the exhaust side of the turbo, as well as the o2 housing (or in the case of a 1g it is a good idea to upgrade to a 2g housing) will fix the problem.

As for how much boost to run, following roadraces guidelines is in general safe, 15-16psi on stock fuel will be fine. Once you do decide to getbigger injectors, getting a dsmchip is good, but you should still have an safc to fine tune it. Every car is different and just because a chip is flashed for a certain size injector doesnt mean your car will run just right.

I know but they sound cool, the star stage one turbo kits for the 420a use a s16g and they are externaly gated.