hello bro XlimShady, let me share some of my experience.... whether to convert or BOT or stay NA....
Objective
first is to consider what is your objective...
- drag?
- track & autokhanna?
- daily driven fun car with a bit more power and reliability?
OR...
- u want high HP or u want high torque?
once you decide what you want, then the mods will follow more naturally.....
Platform/chassis
then let us discuss your platform, a satria neo.......
FYI, it is not advisable for a satria neo to convert to 4G because of the difference in number of engine mounting, the campro in satria neo have only 2 engine mountings while the 4g92/4g93t have 3 mountings..... satria neo also missing the lower crossmember, unlike waja, gen2and persona, they have 3 mountings n the lower cross member, so its just plug n play.....
Conversion
yes u can sangkut the 4g engine but due to the short of one mounting, the rattle, vibration and movement of the more powerful 4G engine will definitely damage the handling of your neo (especially mivec that can rev up to 8.5k rpm in stock form), trust me u will hate your neo if you go this way.... but if u only wanna drag ur neo, then this conversion is the way to go because we can only use 4G series from CK5A or CM5A chassis or evo4-6.... but evo cant endorse anymore, so only few options.... of course u can ROJAK the 4G series like:
-get a mivec 1.6 and change the block to 1.8, so it becomes a mivec 1.8 OR
-get a gsr 1.8 and change the head to mivec, so it becomes a gsr 1.8 mivec..... YUMMY....
-also u can up the torque by using a 4g94 2.0 block but seriously, parts mmg rare n maintenance sucks............
-there is also a less powerful 4g93 GDI 1.8 NA or turbo but not worth the money spent.... (power is low n parts hard to get)
other points would be the age of these engines.... CK/CM chassis is at least 10-15 years already (since evo4 time), so the engine will also be as old as that... halfcut will set u back from rm 6k all the way to rm12k, then the cost of rebuilding and parts availability is kinda scarce...... meaning maintenance SUCKS! you also need to get it endorse.... bnyk kerja n bnyk duit..... but if u could source a good reputable tuner, it will be money well spend cos in stock std, the power is much2 higher that campro of all generation.....hehehe
BOT
an easy way and lately it is already save to BOT campro as long as u dont overboost the engine.... safe would mean that boost would be around 0.5-0.8psi max on std high compression internals.... this will net you HP around 170-190hp with quite great torque.... any higher than that be prepare to invest cos need to custom a lot of things.... do note that campro have tendency to fail on crank.... be it NA or BOT, many reported cases on campro failing on the crank.... patah terus n berkecai..... u can still daily drive BOT campro and it will still retain the superb neo handling and chassis capability cos u dont change or alter the mounting..... trust me it will be a fun car to drive!
Normal Aspiration
this is still the safest way to mod your neo and retain all the characteristics of the car.... campro sucks cos of the low rev torque dip, but in higher rpm range, it is still one of the modest engine around.... in the market now there are a lot of tuners coming up with perf parts for campro engine and proven on track/drag strip..... its just that the amount that u spend on an NA engine will not net as much power as a turbo engine.... if u spend rm30k on NA engine u maybe will net around 30hp max, but if u spend rm30k on a turbo engine, the power will be upped by at least 50hp.... but, NA easy to maintain n durable, turbo still not that hard to maintain but not as durable if u keep on redlining the engine....
i would suggest for your neo cps, keep it NA by:
- high comp pistons, or bore and use bigger pistons
- PnP head (stage 3)
- high cams and all related light pulleys available (crank, waterpump, adj cams)
- port match the intake, TB to the cams duration and degree
- open pod + CAI + fuel regulator + iridium plugs + bigger fuel rails + bigger core radiator + oil cooler + more powerful fuel pump
- properly tuned headers + free flow exhaust
- haltech platinum/sprint 500, if have extra cash go for 1000 (it can withstand higher temperature than 500 with more sensors)
- get a mivec gearbox with FD4.6 with or without LSD, or a cheaper option get exora manual GB.... it also have FD4.6
- exedy 3/4 puck with cover, get the japan one
- once all been done, get your engine fully balanced and blueprinted and then re-tune the haltech
these mods alone will allow your car to rev up to 8k rpm safely with usable power as low as 3k rpm (depend on setting) and you will get more torque n hp and retain all the nice handling, no need to endorse, parts senang dapat, etc etc
but always make sure you use a good lubrication which mostly expensive la (engine oil, gearbox oil, brake fluid, coolant, steering oil), and always buy ORIGINAL parts, never trust copycat parts..... pastu kalau dah siap semua get a good suspension setup via fully adjustable suspension, chassis bars, and upgrade your brake cos doesnt matter how powerful and how fast your ride, u still need to stop on time!
cheers and happy modding bro.....
Anything more than that next time change car already. But at the same time I like the high rev of NA..... so still need to give it some thought. 
(*thats what ppl do but me have no experience on that)
