Hey guys sorry but I am new to this forum.
I have a 2003 Lancer VR-X, it has the 4G94 in it. I was just wanting some help as I intend on throwing a turbo in, and I have heard around that it might not be able to hold the pressure and stress stock. Any ideas what I should? Just internals? Or more? I was looking at forged pistons and rods. I was also looking at a 272 cam, as unfortunately its the only cam made for this engine that I can find.

Thanks in advance

 

I know you can run 17-18 psi on it safely with a good tune 350 whp max without forged pistons. Stock evo 8 turbo is a good choice. Does 4g94 have MIVEC? If so dont need that cam.

 

I wouldn't recommend 17-18 psi. 12-13psi would be pretty reliable. Especially with ARP head studs, an upgraded fuel pump, and 440cc injectors. That would put you around 200-220whp

 

Nah mate it isn't the Mivec version.

 

Thanks mate, don't plan on running high boost, only when I am chopping people at lights

 

Do studs actually do much of a difference @02modlanceroz

 

Head studs aren't going to do anything for performance. It's a safety precaution to keep you from blowing a head gasket. I boosted mine around 80k miles and I never put them in. I been running 12-15psi for 3 years and I'm currently at 116k miles and boosted for 4.5 years. I probably should have changed them but I didn't. I don't have an issue with the head gasket yet. Only issue I have is burning oil, but that isn't a head stud issue lol

 

Thanks @02modlanceroz
Planned on getting a high performance head gasket anyways. But I will probably do both thanks.

 

if you want to double the hp/trq and get around 200-250whp all you need is 440cc wrx injectors/255lph fuel pump/evo maf...i was driving on the track for a full year at 10 psi with no problem at 216 WHP/205TRQ with a stock 115k miles engine, no oil or coolant consumption at all!

 

I ran 18 psi on my stock 4g64 for about 30k when I took it apart it was still running without issue. You would be better off with some evo 560cc though and a DW or aeromotive fuel pump (not a 255 fan).

 

The 4g64 and the 4g94 are completely different motors. The 4g94 is only a 2.0 liter and the Pistons and rods are pretty cheap. If I ever did a swap, I'd put a 4g64 or 4g69 in it. Has so much more potential. The 4g69 is the motor you were probably thinking of. But 18 psi would be really pushing it on that platform. A lot also depends on the size of turbo you go with.