97 Rs-t?

Hi, I have a 97 Rs and I was woundering what was better, got with a GST swap from a 2gen or just turbo that 420A thats in there now, I like the gear ratio and the car has pretty good potential, but pple tell me that the 420A is a softer block than the 4G63, I also don't know how easy it would be to put that moror in there, since there is no mount brackeet for it. Will the Evo motor bolt in there on my frame and transmission?:newbie:

"Softer block"? I don't know what that means, but no.
The 420a will have to be rebuilt in order to slap a turbo on and run high boost. If you don't rebuild, you can run 5-7psi, but you're still playing with fire when doing that.

A 4g63 swap is possible... if you have a crap-load of money, time, fabrication skills, and more money. That requires a new motor, tranny, mounts, ECU, wiring, sensors, and much more. Basically, keep the 420a, build it up to handle boost, and slap a turbo on there. Much easier, cost effective, and better time management. Again with the EVO motor also.

Or, as most people on here will say, sell the RS and get a GSX/GST. It all depends on how much time and money you are willing to put into it.

Oh ok, well that makes sence, so what would I have to do to the 420A to run high boost on it, and how much boost are we talking about here, my friend has a GS-T and he runs low 13's in Denver and he said that his peak boost is 19, is that high?

Will the GS-T have the same gear ratio as the RS?

Slightly different gear ratios, but not by much.

Depending on how well you build the motor, depends on how much boost you can run. A stock rebuild will still be low boost. If you use fully upgraded everything, then you can run higher. If totally built, and with the right supporting mods, you should be able to run about 30psi. 19 is not really high. Again, it all depends on what's done to the car in the first place. 25 is avereage for most people here when racing.

But that brings up another sections... supporting mods. Sure, the engine could handle boost once you do a build up, but then you need other mods to handle that boost. Fuel is most important. Running the 420a with little boost stock will get you fuel cut. You need a controller (AFC), injectures, fuel pump, maybe even new fuel lines all depending on how much you're running. The head will have to be rebuilt to allow to faster moving valve train compenents. You don't want floating valves at high rpms. You will need a better clutch in order to hold that power and put it down to the wheels.

So the question is, what are your goals? Oh, and welcome to AF!

Welcome to AF BishiRST. You're in good hands: David is the 420a man around here. ;)

What about me bitch?? The stock bottom end is fine for about 8psi. If you build it with forged rods and pistons you will be able to run about 25psi. It will depend on your tune. Remember you will also have to upgrade your whole fuel system. Its a big task and will cost a good bit of cash, but it will be well worth it once you are finished.

What about me bitch?? The stock bottom end is fine for about 8psi. If you build it with forged rods and pistons you will be able to run about 25psi. It will depend on your tune. Remember you will also have to upgrade your whole fuel system. Its a big task and will cost a good bit of cash, but it will be well worth it once you are finished.

Same thing I said... Thanks :wink: Just kidding buddy.

David, I think by "softer block," they just mean that it's not quite as stong as the 4g63, and won't handle the power before it blows. And there is an Evo motor that is layed out the same as the 420a, but it's not just a direct swap. You'll need all the wiring, axles, and just the little things, but IIRC, most of the mounts are close. And what the other guys are saying about throwing on a turbo, they're right.

Plus doing an Evo swap would cost a LOT more than a DSM 4g63 swap, plus you dont really have the option of going FWD with an Evo power train, then you pretty much automatically have to do a AWD swap too. Yes, turboing a 420a can be a good thing to do, but you gotta know your shit and you will end up paying lots more money than you would for an already turbo 4g63. I would for a $3000 sticker on your RS and start poking around for 90-92 TSI AWD/GSX's.

Plus doing an Evo swap would cost a LOT more than a DSM 4g63 swap, plus you dont really have the option of going FWD with an Evo power train, then you pretty much automatically have to do a AWD swap too. Yes, turboing a 420a can be a good thing to do, but you gotta know your shit and you will end up paying lots more money than you would for an already turbo 4g63. I would for a $3000 sticker on your RS and start poking around for 90-92 TSI AWD/GSX's.

Stop trying to push 1st gens. Everyone knows they're ugly as sin. haha. Just kidding. I totally forgot about the EVO swap and AWD. If you spent $3000 or so for your Eclipse, look at spending double just to get it turboed. It's a lot of money.

How can you argue with less stock weight, a 6 bolt, and cutting, sexy body lines? :lol:

Well, where I do find 1ga's sexier than anything else, I was suggesting one mainly because thats about what hes going to get for selling his RS. Plus, for someone just starting out, not having to worry about a 6 bolt swap is a good thing. If I had endless amounts of money, I would do a 2gb Eclipse but since money is tight for me (and most DSMers, hell thats why we are DSMers :p) 90-92's are the best option as long as you dont put tons of stock in looks.

What about me bitch??

Yes yes, you too, bitch, :icon16:

Hey thanx for all the responce guys, and thank you for welcomming me to the site. I got my eclipse for $1200, it had a rod knock and the inside was trashed, I got a 420A from a 94 Avenger in the junk yard for cheap, was thinking of sending the bad block to the shop and building it for turbo, I found an internal kit on ebay for just over 800 shipped, I was gonna put that in and start looking for a turbo kit to run it. I am realy interested in the 4g63 swap, but the other side of the engine bay dosen't have the supporting motor mount bracket on the shock tower.. I don't mind spending the 3G's to get it swapped over, but will that include the missing hardware in the engine bay?

I'm new to the Bishi scene so I would realy be glad for any advice, all I want is about 300 at the wheels, I'll be fine with that, if the 420A can do it for less than 3500, then hey, there it is.. I already have a (in the making) 600HP G2 integra thats gonna be the prowler, all I want is a daily driver that woun't get pushed around by NEON's..

Hey how do you add a pic on here, this shit's makin me dizzy!!!

A built & turbo'd 420a will make 300 for under $3500, granted you shop around and don't go buying the best product for retail price. You'll spend more than $3k to get the 4g63 swap complete. You need all the harnesses, custom mounts, axles, computer(s), and allllllllll that good shit. Trust me, you don't want to do it. Just build up the 420a, but don't just go buy an ebay turbo kit, they're junk.

And where do you want to insert a pic, in your post or in your sig? For the post, go to www.imageshack.us or www.photobucket.com to host it and then just copy the code (I believe it's the hotlink to forum one)

Aight, I think I got it, here is what I got, a lil messy, but does the job..



http://img406.imageshack.us/img406/9968/1004464md4.th.jpg (http://img406.imageshack.us/my.php?image=1004464md4.jpg)

Car looks good. Needs some work and it should be all good. It will be less than $3500 for 300hp easily.

Sweet man thanx, where do you recommend I get a turbo kit from? I kinda was guessin at that ebay kit too, but thats the only place I've seen one for the 420A set up.

Buy a special built header to support the 16g and just buy a regular 16g turbo.

If you buy a kit you will spend more than $3500. I have seen people do it for right under $2000 but you have to find good deals and all the right parts to support 300hp.

We talking turbo kit or full rebuild kit? Because that's a negative for both of them. Maybe both of the combined, but not seperate.

Build your own turbo kit. Much cheaper than buying a kit.

Im kinda drunk right now. DOn't ask.

BishiRST was talking about an engine rebuild kit (internals) and SilvrEclipse was talking about a turbo kit, like a Hahn one. Either way, if you piece together your own parts, you'll save a shitload of money. Get a good rod/piston set, some Hastings rings, and then rebuild the block. Then find a good turbo, an exhaust manifold that will support it, and the rest of the supporting mods; you'll be well on your way to 300hp.

Well, actually, I found a JE/Eagle kit on ebay for just under 800, I was more interested in teh turbo kit, fI konw U have room to run pipes and mount the intercooler, but my thing is where do I get this 16G Turbo Manifold, is that something that I have to build, I found a tubular one on ebay here it is, let me know if this is a good idea, I think it comes T3/T4 turbo, how good are they??

http://cgi.ebay.com/ebaymotors/420a-Eclipse-turbo-manifold-stainless-steel-dohc-2-0-na_W0QQcmdZViewItemQQcategoryZ33742QQihZ008QQitemZ 180037894531QQrdZ1QQsspagenameZWD1V


Here is another one that I was looking at too, not sure which one to get..

http://cgi.ebay.com/ebaymotors/420A-motor-Talon-Neon-Stratus-T3-Stage-Turbo-Manifold_W0QQcmdZViewItemQQcategoryZ33742QQihZ020Q QitemZ300083362020QQrdZ1QQsspagenameZWDVW

OK I got a question, I was talking to a Mitsu Guru in Colorado Springs, Turbo Jack, and he said to sell it and get a real GS-T cuz my car was made for daily driving and not high performance, I will spend more money to get it the way I want it and for the cost I could just save and get a GST, I'm realy lost here, HELP PLEASE :banghead:

It all depends on what you want to do. The parts are available to make that the 420a put out some serious power but you will have to spend some money to get it.

That's what we said from the get-go. If you really want a turbo Eclipse, sell yours and go buy one. With all the money you're going to invest in a built, turbo'd RS, you could have easily bought a nice GS-T and put a little bit of money into that instead. But it's your car and your choice, and it would be kinda cool to see a built and turbo'd RS-T around here again for a change....

OK, so what your saying is that I can turbo that 420A to 300HP and if I put the right parts together I woun't be blowing anyting up??? Whats the better manifold, tubular ot cast? I found a few kits on ebay, one for 1800 that was a complete kit and some others that weren't realy worth shit, then there was the deal of making my own kit, with a 16G turbo, I can do that, I jus wanna know what set up to run, and how do I control the fuel delivery, I can't even find injectors for this shit anywhere...

Turbo kits.... Where to begin with those.
Don't buy anything cheap, if it's too good to be true, it is. $1,800 seems high, but it depends on what comes with it.

Manifolds...
You can go either way. Usually tubular requires some work done, like smaller fans, and possbile an aftemarket radiator. Casts are fine. Dont go cheap again unless you want crackage.

Fuel...
You'll need something to control fuel delievery. Injectors can be found anywhere. I would get some 550s. Do a search for 550 4g63 on ebay, you'll find them there. You may need a FPR also. Youll need a FMU and a bigger fuel pump, like a 190 or 255. You'll then need a controller like a SAFC, MegaSquirt, or some other AFC controller. Last and not least, you'll need a Missing Link for the MAP sensor so you don't get fuel cut due to high intake preasure.


Damn, I know a lot about this stuff.

Damn, I know a lot about this stuff.

Shiiiiiiiit, you like to think that! You're just at the beginning!!! :grinyes:

Check out this link, this is the kit I'm looking at, and these are the internals that I found.

http://cgi.ebay.com/ebaymotors/Treadstone-Turbo-Kit-Eclipse-Talon-420a-DSM-Mitsubishi_W0QQcmdZViewItemQQcategoryZ6755QQihZ007 QQitemZ170086950466QQrdZ1

http://cgi.ebay.com/ebaymotors/NEON-TURBO-EAGLE-RODS-WISECO-PISTONS-ECLIPSE-420A-53_W0QQitemZ260091729157QQihZ016QQcategoryZ33623QQ ssPageNameZWDVWQQrdZ1QQcmdZViewItem

I think that turbo kit is way too much IMO. You do seem to get a lot in there, however, you can do the same setup for a lot less.

The internals however do look good. I would buy those. Make sure you get your block machined also.

Machined, what do you mean, like .20 over?

If you wanted to. But even just honed and resurfaced for starters.

Aight, I got ya, now the next thing on the menue, valve train, where do I find that, and is it the same as the 4g63? I'm still trying to find performance cams, keep gettn dead ends, I spoke to a guy on ebay that said he could get me some stage 2 crower, capable of building power to 8500 rpms.. Any ideas?

I have the Crower Stage 2 for the 420a, not installed yet. They range from 2500 - 7800 IIRC. I can't wait to get these bad boys installed.

4G63 will NOT work with the 420a. There are plenty of parts available. Check out www.conceptillusions.com for a lot of parts. They seem to have one of the biggest selections of parts IMO for the 420a. It's one of their specialties.

Now, when you do cams (especially going to anything above "stage 1") you'll need to upgrade the whole valvetrain, from the springs to the lashers to the lifters. Any high-performance cam will wear down these parts pretty quick. And if the springs can't hold... you've got a problem there then.

So you have to look and see what you're plans and goals are. Are you for sure going with that rebuild and a turbo? If so, rebuild the entire head. I'm doing mine right now bc I have big plans for mine. If you don't plan on turboig or stroking or anything, just a slight upgrade on the head will do you good, like light cams, springs, and valves. Make sure though you get new valve guides and seals, and that you know what you're doing when installing. One slip up in the timing, and then you'll be buying yourself new valves, and maybe even pistons.

all I want is a daily driver that woun't get pushed around by NEON's..


Hahaha...if your RS gets pushed around by neons something is seriously wrong with it...like majorly. I've dusted many auto-zone sponsored ( fakes ) neons in my day..now I have no 2nd, 3rd, or 4th gear...yay...


Anyone with a 5 speed tranny for sale lol ?

so what your saying is that the neon srt-4's aren't no big deal for you to run away from?

so what your saying is that the neon srt-4's aren't no big deal for you to run away from?


The SRT-4 is no neon..it's a POS inside a neons body with a hopped up hunk of junk..but yes you may lose lol..a regular neon on the other hand should be left smelling your carbon :D

SRT4s will win over a heavily modded n/t. However, with some proper tuning and internal rebuilds (besides just boltons), its attainable.

Neon neons are just gay and slow.

so what your saying is that the neon srt-4's aren't no big deal for you to run away from?
Fastest FWD production 4-cylinder in the USA...