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> 420a Turbo Build, What do I need?
Jens4eva
post Jul 7 2006, 06:40 AM
Post #21


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Alright...thanks Pwee
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98GSXEclipse
post Jul 12 2006, 03:42 PM
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Drives: 98' GSX Eclipse 420a
Does anyone know the stock injector size for the 420a?
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pwee05
post Jul 12 2006, 03:57 PM
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Drives: 1996 Talon AWD. Built, but no longer drives: 1997 mitsubishi eclipse RS; 1990 Talon AWD; 1995 Talon AWD, 1997 Talon AWD. Seems like a pattern
19lb/hr(200cc). they are just little things, the reason why they need to be upgraded if a turbo system is put on.

Formula for Injector Sizing

* lbs/hr = ((BSFC / #Cyls) X HP / Injector Duty Cycle%
* Brake Specific Fuel Consumption is normally (lb/HP X hr)
* .42 BSFC - Race Engine
.47 BSFC - Hi Performance Engine
.52 BSFC - Stock or with Light Modifications Engine
.57 BSFC - Supercharged / Turbo Charged Engine
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Jens4eva
post Jul 14 2006, 08:09 AM
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Hey, if I was to turn my stock Talon engine into a trubo would I have to use a stage one turbo? And where's a good place to get everything I need?
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pwee05
post Jul 14 2006, 12:39 PM
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Hahn kit

there really is no such thing as a "stage one" turbo. what you mean is a low volume turbo. Think of it as a garden hose and a fire hose both set at 15psi of pressure. how much water do you get from a garden hose at 15 psi and how much you get from a firehose. both have the same pressure but the volume of water that comes out is much different. if you want to stay stock use a small 16g, t25, or 14b turbo. don't go nuts and put a t04 turbo on because it sounds cool and has been used in movies. this will destroy your engine in a blaze of glory if it ever spools
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Jens4eva
post Jul 14 2006, 01:08 PM
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That link you posted was for a 95-99...I have a 92and I searched that site and all I saw was 95-99...
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pwee05
post Jul 14 2006, 01:20 PM
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oops. I apologize. That is something I won't be able to help you on. sorry
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Jens4eva
post Jul 14 2006, 01:25 PM
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That's cool...thanks anyway..
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Fossil
post Jul 16 2006, 07:22 AM
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Hahn's Racecraft Eclipse is easily one of the most impressive examples around of how much power you can push from a 420a motor. It's my future Turbo <3
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pwee05
post Jul 16 2006, 03:29 PM
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Definately. scroll down a little and check out the dyno numbers on that talon. :gunsmilie:
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Valerie_Daiquiri
post Jul 19 2006, 04:02 PM
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That was probably the most informational thing I've heard in 6 months! :liebe011: Anyway..I just got out of the trucks scene and am getting hooked on imports and JDM's. I recently bought a '98 eclipse RS. I already have a Greddy exhaust, header, shiftknob and cold air intake. Not much, but will do for now until I have some cash lol. i would like to put a turbo engine into my RS... is it better to build it ourselves (in my case I have no idea how, but i have a lot of friends who could probably), and is it safe to buy a manufacturer's turbo and install it ourselves? i would like to get a lot of HP in my car, so what is the max that an RS can handle?

And does anyone know or have any ideas what other upgrades I should do to my eclipse? Thanks
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pwee05
post Jul 19 2006, 04:23 PM
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QUOTE(Valerie_Daiquiri @ Jul 19 2006, 04:02 PM)
I already have a Greddy exhaust, header, shiftknob and cold air intake. Not much, but will do for now until I have some cash lol. i would like to put a turbo engine into my RS... is it better to build it ourselves (in my case I have no idea how, but i have a lot of friends who could probably), and is it safe to buy a manufacturer's turbo and install it ourselves? i would like to get a lot of HP in my car, so what is the max that an RS can handle?

And does anyone know or have any ideas what other upgrades I should do to my eclipse? Thanks
[right][snapback]59948[/snapback][/right]


:00000732:

your wasting money on shift knobs and a header if you want to turbo your car. if you have the money to waste that's fine but it will cost upwards of $10k not including labor to set your car up for the max hp possible. stock crank will hold 500hp. stock trans will hold 300 or less hp at the track with hard launches. it would be quicker to just buy a built crate engine and toss it in. I've been doing research on the trans but haven't come up with anything yet.

I don't understand what you mean by a "manufacturer's turbo"
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eclipsed4utoo
post Jul 20 2006, 07:45 AM
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QUOTE(Valerie_Daiquiri @ Jul 19 2006, 05:02 PM)
That was probably the most informational thing I've heard in 6 months!  :liebe011:  Anyway..I just got out of the trucks scene and am getting hooked on imports and JDM's. I recently bought a '98 eclipse RS. I already have a Greddy exhaust, header, shiftknob and cold air intake. Not much, but will do for now until I have some cash lol. i would like to put a turbo engine into my RS... is it better to build it ourselves (in my case I have no idea how, but i have a lot of friends who could probably), and is it safe to buy a manufacturer's turbo and install it ourselves? i would like to get a lot of HP in my car, so what is the max that an RS can handle?

And does anyone know or have any ideas what other upgrades I should do to my eclipse? Thanks
[right][snapback]59948[/snapback][/right]


please read some of the PINNED topics at the top of the forums.

http://www.mitsubishi-forums.com/t8460-4g6...p-in-2g-n-t.htm
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fullmoon
post Jul 28 2006, 01:37 PM
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QUOTE(pwee05 @ Jun 8 2006, 09:45 AM)
definately funny  :clap:

I'm sure there are people out there that have more knowledge than I do but I'll take the worship  :laughing:

anyway, to your question.  200bhp is probably the limit when staying N/A.  unless you can figure out a way to get the compression above 12.5 : 1 inject with methanol and make that **** squeal.  It is possible with a 2.4L to get above 200bhp n/a but there just isnt't enough displacement in a little 2.0L to do it.  even after bore and stroke.  I could be wrong though.  I just haven't heard of anyone putting enough money into an n/a car to get the horse power that high.

turbo, on the other hand, is a much easier way to increase compression by ramming air and fuel down the cylinders throat.  you could have a nasty turbo car for $10k.  if you can do some of the work yourself you can get the cost under that because labor is expensive.  I have about 8k in mine but did all the work except putting the bottom end in the block and machining.  The only problem I have now is worrying about when I will have to pick up my trans with a bucket piece by piece. 

Scroll the whole way down to the bottom.  There is a dyno slip to prove that the 96 eagle talon shown with the 420a engine makes 460whp on c14 and 340whp on 93 pump gas.  so it can be done, it's just a matter of how crazy are you willing to go. :thumbsup:
[right][snapback]56146[/snapback][/right]


My little rusty dusty calculator says about 190 from a guy on 2gnt.com he got 157whp After reading 8,000 from this site and another guy in S. Carolina telling me 5 grand !!!
Them numbers give me a nose bleed!!! Now I know I'm gonna just stay N/A!!! I can have almost as much fun with a normal rebuild w bigger pistons and a good ol port and polish and money have to left spend on my lady to boot (She's more fun :grin: )

I can get a N/A rebuild and port and polish for around 3gezz (I don't like to get my hands dirty) and get 150whp that's plenty hp for me :grin:

Thanx guys for the heads up after reading this n4 it was really an eye opener :thumbsup: $$$
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fullmoon
post Aug 7 2006, 11:39 AM
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Sorry guys I got a question for you guys who have added turbos to you N/A car, Do you have many many problems like break-downs etc.. since you have added a turbo to your car?

I have heard that they are no longer daily drivers, I could see if you added a huge turbo but a tiny one I don't see what problems that would cause.

And one guy told me that I should use the ECM from a GS-T and well from what I have learned from all the reading is that you don't add ECM from a GS-T instead you piggy back or just buy an aftermarket type.

I canceled plans for my N/A rebuild since that guy told me he spent 14,000.00 for 198 to the ground and no top end at all.

Man that WRX-STI is looking better every time I think about tunning this thing!!! :(
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eclipsed4utoo
post Aug 7 2006, 09:32 PM
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