Evo 4-6 4G63T Rebuild?

[EV0WANNAB3]

I'm brand new to the world of 4Gs, let alone Mitsubishi. I'm trying to get a 4-door AWD car to have a ton of fun in, is capable for taking to places that are snowy and icy (for snowboarding trips), and take off roading for camping and other outdoor activities.

My friends pointed me towards the Evo line. I was gonna shoot for a 7, but they're uglier stock than a 6, so imma shoot for an Evo 4-6. I'm interested in this line ONLY if I rebuild the engine and make it "brand new", as well as change any major moving parts like suspension, wheel bearings, joints/tie rods, etc.

For the engine rebuild, what parts should I do aftermarket brands like HKS or something, and what brands should I use for what parts? Also, if I go OEM, what's the absolute MOST I can get out of that OEM part? as I wanna boost my future/dream Evo to 500hp and it be able to withstand max speed for up to 30s and walk away without issues.

Lastly, if I do boost the engine to 500hp, will the transmission have to get changed/upgraded, as well as the drivetrain? If so, should I go re-man for either, or aftermarket brand, and if not, where should I go to get "new" parts for both?

 

[justacanuck]

Like I said in an earlier post, I'm not hung up over 500hp, but I dont want less than 400. 500 was just a number my friend threw out there, so I figured I'd ask about it.

Lots of wisdom in the other posts above, and I certainly don't want to minimize any of the warnings you've been given.

But I'm going to go out on a limb and say, if you really want 500HP, I say go for it. Just be well aware of the inherent limitations, and be sure to drive it really nice (i.e. no big burnouts, and don't go for any boosted launches, and roll into the throttle gently) at least until you have a new transmission, built for the purpose, ready to be installed, and a solid plan to upgrade major drivetrain components when you start braking drive shafts etc.

Also, if you aren't going to be doing a bunch of the work yourself, $50k could be too little to build a reliable 500HP daily driver that you can drive hard. Of course that also depends a lot on how much you spend on your initial purchase, and how much your builder is going to charge you for doing all the labor required to get there, and how many times you break stuff before you settle on a solution that makes you happy, and doesn't break.

If I want 400hp, and will basically make a whole new 4g63t, what parts should I get from which places? My goal isn't a dragster either, but a fun street-offroading combo car that is usable for trips with almost 50% more weight, and be crazy fun on a track (there's a track near my fam I'd like to try it out on at least once ) or street/freeway.

As mentioned by others, 400HP is a heck of a lot of power, and you may well be quite satisfied at that power level.

I'm not sure what the rules are about promoting any particular vendor, nor other vendor's parts/availability in Japan, but I have bought a few Wiseco pistons over the years, and they do seem to be very good quality, as well as quite popular with engine builders. Cosworth also makes top notch pistons but I'm pretty sure they are quite expensive, and something from Cosworth may well be a custom order/build.

I also believe Manley and Carrillo both have a very good reputation for their connecting rods, so I don't think that choosing either of those manufacturer's connecting rods would be a mistake.

Tomei and Garrett are just a couple of international brands that both seem to have an excellent reputation for building good turbos. Precision Turbo and several others produce high quality parts, but may be easier to source in the USA.

In North America, STMtuned as well as MAPperformance are both vendors that seem to have a decent inventory of good performance parts available.

Just be warned: I do NOT have any personal experience with all of the 4G63 parts listed above, just that those manufacturers do seem to have a good reputation generally, and I am fairly certain they all make parts that will work on 4G63 engines that can produce +500HP levels fairly reliably.

At 500HP, much of your drivetrain is likely going to have to be custom built, or at least a custom ordered, and as such, you may not be have much luck finding anything like that in stock, anywhere. A new transmission designed to handle that kind of power reliably, could easily approach $15-20k alone. If you a really shooting for 500HP, the price/budget can, and very likely will, escalate rather quickly.

 

[EV0WANNAB3]

As for Evo 4+ ECU, Evo 4 ECU is non-flashable, it's from Evo 5. I could be wrong but I guess the Evo 4 ECU is like the 2g DSM non-EPROM ECU. It's even not black box, it's in metal case. I have seen some Evo 4 ECUs that were converted to EPROM by adding a board, just like ECMTuning non-EPROM conversion. So to tune Evo 4, converting the stock ECU, swapping with Evo 5+ ECU or standalone would be required. In case if you decide to go with a standalone and don't tune yourself, I recommend to go with Linkecu, Motec, Haltech rather than AEM. This is because it would probably be easier to find a tuner if you live in Japan.

As for shops, if Evos, maybe you should contact G-Force or Monster Sports, they have been familiar to Evos. And they are in the Kanto region. (around Tokyo area) I also know some people who run a shop in the Kanto region. I can ask them for advice if you would like.

As for the engine parts to rebuild, if the shop you would use can't source the parts for 4g63, I can also help. I can ship from the parts supplier in the States to the shop in Japan if you need.

I've heard of motec (thanks to the hoonicorn), and I will check those 2 places out and see what they say about the rebuild. I may not go with an evo 4, but if I do I'll bear that in mind. What shop do you know? I may wanna check them out too to compare my options. I'm sure I'll be ok with getting parts, but I'll let you know if I'm not

 

[DSMPT]

What shop do you know? I may wanna check them out too to compare my options. I'm sure I'll be ok with getting parts, but I'll let you know if I'm not

I sell US parts to people in Japan and many of them run their own shop. Selecting the engine parts within only the Japanese brands would be limited actually. There is no many variation. That's one of the biggest reason why they ask me.

 

[EV0WANNAB3]

I sell US parts to people in Japan and many of them run their own shop. Selecting the engine parts within only the Japanese brands would be limited actually. There is no many variation. That's one of the biggest reason why they ask me.

Gotcha. What's the differences between the US version and JP version of the engine? The tubo ceramic like the 2j?

 

[DSMPT]

Gotcha. What's the differences between the US version and JP version of the engine? The tubo ceramic like the 2j?

The engine itself is the same.
What I meant is, if you would choose the engine internal parts and valve train components with only Japanese brands, it would probably be with HKS, Tomei, Jun, Toda or so. And the setup/parts combination would be very common one in Japan. I am not saying it's bad, of course it would work perfectly. It's just you won't have many options (variation/parts combination) for your setup, like stroke, rod length, piston design, cam profile, head gasket thickness etc etc.
For instance, even if you would desire to build a long rod engine by using 156mm or 162mm rods, you can't do that with only Japanese brands parts. Because they don't sell long rods as their off the shelf. Or if you would want to go higher compression setup, you can't do that unless customize the pistons. There is no high compression piston off the shelf kit with Japanese brands. But you can build the engine as you want if you would include US brand parts. They have most of things as off the shelf, no need to customize.

 

[EV0WANNAB3]

The engine itself is the same.
What I meant is, if you would choose the engine internal parts and valve train components with only Japanese brands, it would probably be with HKS, Tomei, Jun, Toda or so. And the setup/parts combination would be very common one in Japan. I am not saying it's bad, of course it would work perfectly. It's just you won't have many options (variation/parts combination) for your setup, like stroke, rod length, piston design, cam profile, head gasket thickness etc etc.
For instance, even if you would desire to build a long rod engine by using 156mm or 162mm rods, you can't do that with only Japanese brands parts. Because they don't sell long rods as their off the shelf. Or if you would want to go higher compression setup, you can't do that unless customize the pistons. There is no high compression piston off the shelf kit with Japanese brands. But you can build the engine as you want if you would include US brand parts. They have most of things as off the shelf, no need to customize.

Ooh, I gotcha. I may very well consider that then. Thanks for the help