alright here is my situation...i don't have many choices left on mods before i go turbo. the only things i haven't done performance wise thus far is a bored throttle body. now this is the question i will present to you. i have two options: option #1: saving up for a turbo and running on stock internals...option #2: buy anothing motor, pick up some forged internals, and port the head of that 4G94 while it's out of the car. (i don't really have the option of leaving my car apart for a couple days to do internals on this motor since i work 6 days a week).

i was personaly leaning towards option #2 for several reasons. first off, i can't afford to go turbo, blow something up, and not have a car. secondly, i would really like to push the limits of my lancer and you can only run so much boost on stock pistons and rods before you make a big boom and....well yeah you get the drift. lastly, i would really like to learn a lot more about the internals of the motor. i look at it as a good learning experience.....on the other hand a turbo would be a nice thing to have too...

what do you guys think? what would you do if you were in my situation?

 

Your thinking on the same logic I would be in that situation. Option #2 would provide a great learning opportunity, and would turn out to be boosted to higher levels in the long-run. While you're at it, go for a cam as well. Good luck.

 

would you run high compressin pistons and go for an n/a monster?

 

cuz turbos faster? i dunno just shootin in the dark.

 

running high compression pistons with the 4g94 is not the best way to make power. alot of research and alot of money will need to be spend to do so. its also very dangerous to do so as well

 

dangerous to run NA?

 

to run high compression

 

u gonna have to get high compression pistons first off. idk if any company sells. but i think rrm had intrest in doin so. alot of tuning and research. its gonna cost big bucks for little gains. u gonna gain some power but will end up loosing some trq.

 

^ Only a part of this is true!

I have high compression pistons on my car and there is no tunning involved as of now. I'm not running lean. I will need to get Emanage or some piggyback to free up more horespower. It's not expensive and the gains are probably the greatest out of all the NA mods.

You shouldn't run FI with high compression. It gets really hot in the combustion chamber. High compression + FI = a lot of tuning with timing and fuel.
What would I do is get forged internals with low compression pistons.
You will be able to boost really high on the pump gas.

 

high compression with FI = kaboooooooooooooooooooooooooooooooom

even running high compression, the air/fuel mixture that is being compressed gets even hotter with high comrpession pistons because the combustion is more powerful. but thats y run on higher octane to prevent detonation or knock but can only do so to a certain pt. it really donsn't prevent it just has a greater resistence. but all that to tweak a few extra hp is not even worth it, since this motor is a lil beefed up from its 1.8 origin theres not much more u can do with borin the motor. and when getting the most out of the raise compression, i'm sure u wanna have stronger rods as well. but idk if it would even be powerful enough to break the rods.

but

goin with a n/a route. do the high comrpession pistons, emanage, cams will help greatly, a 4g93 intake manifold, bored throttle body(do it urself or rrm)
long tube header from rpw sroke the motor. but does anyone have a stroker kit for our car? prob not. u can raise ur rev limiter to like 7000 and have new valve springs and i'm sure u will prob have around like 180 crank hp but the trq gains will not be great.

^ what compression pistons do u have?

 

do NOT attepmt to bore your TB yourself. The machining on the butterfly inside is complicated and very precise. The TB is also not perfectly round, it swells slightly in the middle and you have to account for that, too. If you leave too much of a gap around the butterfly you've machined a vacuum leak into your TB and you'll stall out all the time. This is best left to those with professional tools. If you know how to use a milling machine and have worked carbs and such before, then this is all old news and I apologize for wasting your click

As for your original question, I ahve a question for you: what do you want to do with your car? If you want to go fast, you need forced induction, that's all there is to it. The only reason I'm staying NA is to stay in my car classification with my autocross group. If you mostly want to learn to rebuild a motor, you can go either way, but NA will be cheaper because you'll be saving all that FI money.

 

yea just go with option number 2. u will learn so much, its actuall the best way to learn.

 

^
^ 10.5:1 just enough to run on 91 octans safely.
I cannot stop myself from saying to leave high compression for some other thread because it really seems like you are just guessing half of the info.

 

Right on. You can always go FI down the road if you want.

 

yea ur right, i'm just guessing.