I looking forward to modified my Evo VIII Engine this Winter, and need help from everybody how now the 4G63 Engine.

Thankfull for any help, opinion and more

FACTS:
Engine has 37'000km / 23000mls
Budget has to be in a human setting
I drive on 98 or even 100 octane
OEM Look preferable because Police
no Racetrack use but has to be steadfastness
it must stay the 2.0L Engine
My goal reach 450 - 500 HP

PARTS already bought:
- Walbro 255 l/h GSS342
- HPT Carbon Upper Intake
- K&N Airfilter
- NGK Plug BPR9EIX
- Grimmspeed 3-Port Boost Controller
- GFB Mach 2 TMS Recirculating Blow Off
- 200 Cell High Flow Cat

PARTS i need your help because i'm not sure:
- FP Green incl. the FP Intake pipe (FP Red i think spool too late for 2.0L)
- FP Race Manifold
- GSC Stage 1 Camshaft 268° In/Ex incl. High Rev Springs and Retainers (Stage 2 Camshaft, Idle is to noticeable for the police)
- ETS Lower ICP
- ETS 3.5" Core Intercooler
- 3" Downpipe with Invidia Turbo Outlet
- 3" STM Cat-Back
- PTE 780cc Injector (or do i need the 850cc by FIC)
- ACT ME2-HDSS Clutch-Kit with Streetlite Flywheel (or maybe better the Exedy twin organic clutch?)
- Harmonic Balancer Crank Pulley (thanks for the note @Biggiesacks)

Pistons --> necesarry?
Rods --> necesarry?
Crank Shaft --> necesarry?
Rod / Main Bearings --> necesarry?

 

37,000km? That car is still new.

500HP on 2.0L with 98RON (similar to 93 octane pump in United States) is perhaps not a great combination. The smaller 2.0L and regular pump gas will require a very large turbo and high RPMs to reach 500HP. Turbo lag will be severe for a street car.

In my opinion: With 2.0L and pump gas, a 400HP car will be more enjoyable than a 500HP car on the street.

You might consider the MHI 18K for maximum stock-like appearance: https://forcedperformance.shop/produ...18k-for-evo-ix

 

I thought that 500 hp will be really high to reach. You have absolutly right, i dont wanna have a big turbo lag, because i drive legaly on the street. Thats the reasen i say between 450 - 500 hp

Maybe 450 hp is more realstic.

 

23k huh.... When was the last time the timing belt was changed? If it's been more than 5 years you are going to want to add that to the list.

 

@Biggiesacks
In 2018 with 32'000km or 19'800mls. But thats the plan, when i change the camshafts and more it will be good to change also at the same time the timing belt / waterpump.....

 

Awesome, most people let that slide not realizing there is also a time component to the service interval. I would urge you to consider a balance shaft delete while you are at it ( if not already done), it really bumps up the reliability of the engine while also freeing up some HP. A good harmonic damper will also be a worthwhile addition.

 

@Biggiesacks
Balace Shaft Delete i dont have at the moment. Is thats really necesarry?

With a harmonic damper you mean something like THIS

 

Yes that's the one I have on my engine. As far as necessary, that's up to you. You can do a search for balance shaft related 4g63 failures and make up your own mind. It's a somewhat controversial topic, but as far as I know its a standard mod performed by pretty much every professional engine builder here in the states.

 

Thats good to know. I never heard about this. I put the harmonic damper on my List on the Top in thread. I can do this at the same time when i change the timing belt again. But with the balance shaft delete i think about the vibrations that that will produce

 

With the green 400-420whp is more realistic. Find a good tuner and take a few classes to be able to make small adjustments as needed.

If it was a mivec engine then a Red would be the move. Perfect combination IMO.
Cams would make it a little easier for power but you are out of turbine flow for the most part. I would leave the bottom end alone and just enjoy it at 400/400 until you are ready to rebuild it. When you are ready to build it , move into a 94mm crank and an FP Red.

I'm a big fan of keeping the balance shafts on a stock bottom end at moderate power levels and RPM. Just do the timing belt 60K service. Its not going to turn over 8000rpm well with that turbo (or any MHI housing ) well .

 

@Abacus
The Evo will be tuned by EGMO. Became famous in europa with THIS CAR I trust my Evo only to him.

You don't think the FP Green with this mods in the top are aible to go to 450hp?

 

In the states on 93 octane most get about 400-420whp or so on the MHI green on a Dynojet. Different dyno's read high or low so Its hard to compare anything else.

FWIW, The FP Red on 93 makes about 430-450whp or so on a dynojet in the states.

If you have more octane or run 100 then you should be able to make more. But how much more will depend on your setup and what the tuner feels good leaving it at.

 

After your words, my choice is going more to the FP RED. But running the FP Red with OEM Engine (Pistons and Rods) is little bit risky hmmmmmmm

 

For an 8 a green will be a good match. But for a 9, or a 2.2, or paving the way for later the Red is a better choice. These engines go proud to 7500-8000 so its a wide powerband.

Regardless of your turbo choice , tuning plays the largest role on life span. If you keep the TQ below 400 and its clean it should last a while.

 

Even an 8 with non mivec, the red still spools really really fast. I vote FP Red, trust me you will not be disappointed.