advise on evo 8 mods?

[hatrick32000]

i currenty have the rvial wrx but it just doesnt have enough potential power as i want so i am trading it in for an evo 8 soon. i am posting this in the newbie section because i dont know much about the evo. i am thinking of these mods if i get it over the next year or two.

fp green
cobb turboback with no cat test pipe
invidia o2 housing
injen intake system
turbo xs fmic
megan manifold
walbro fuel pump
accessport
750cc injectors
hks bov kit

what kind of power am i looking at around? i know it all depends on my tuner but i want about 400 at the wheels. do you think this will get me there? also i will upgrade the tranny and will the stock brembos handle it? thanks

[Warrtalon]

fp green - You sure you want to go directly to a green before realizing the potential of the stock turbo? You can make a lot of power on stock turbos, but the Green is very nice, too.
cobb turboback with no cat test pipe - Right idea, but not much reason to get anything from Cobb. They specialize in Subies, but not Evos. Look at Buschur or AMS, imo.
invidia o2 housing - No need for this. It's more expensive, doesn't fit well, and doesn't make more power than a plain stainless steel o2 housing (ebay-style)
injen intake system - If you want it, but it's more for ricer mags than anything. Plenty of plain intakes that make good power at low cost...like Buschur, AMS, ETS, etc.
turbo xs fmic - Not one of the top FMICs, but it definitely works ok. Top ones are Buschur, AMS, and then ETS is what I have...it performs with the others but costs only $440
megan manifold - Definitely don't get this. IT's prone to cracking, will look like doodoo-brown crap after a month, and it won't make as much power as porting the stock manifold
walbro fuel pump - A must.
accessport - Again, this is not a Subie. No reason to get an AP when we have Ecuflash, which is free and just as powerful.
750cc injectors - Great size for a Green as long as you're not using E-85
hks bov kit - Never say those words again, haha. Absolutely NO REASON to get an HKS BOV. Get a Forge RS or something else that is strong and recirculates.

Other mods to add to this setup:
- IC piping (upper and lower)
- MBC (Forge UNOS or Hallman Pro)
- Determine the fuel you plan to use. 400whp is tough to get on 93oct, but easy on good f uel (alky/meth injection, race gas, or e-85)

[hatrick32000]

haha thats perfect. thanks a lot and yea i guess im still stuck on subaru parts and the reflash is great! i dont have to spend 700+ on engine management. but thanks for the help and i run 93 octane and would like to do methanol injection but how often do i have to fill that puppy up? and is it bad for the car? i know putting 400 at the wheels is never good for it but just wondering.

[Coevopower]

The Meth part you will be filling it up as often as you use it. so more use more filling up lol.

[hatrick32000]

yea very true haha. if i put some hks intake and exhaust camshafts in the car will it have close to 400? that would be way down the road but just wondering. and if i just stuck with the mods i listed without meth or race gas what numbers would i be around?

[hatrick32000]

what exactly is this ecu reflash? and how is it free?

[Coevopower]

Its not free per say. You have to have a Tetrix cable for it. and you can put rom on to the ecu.
well I wouldnt recomend doin it you self if you dont know how to. you would get tunned the tunner will just reflash your ecu and you are good to go.

depending on your area you would use the best tunner there. and they can do runs on the road and adjust the map settings with it, or on a dyno. also you can get a email flash where you do logs for the tunner and he sends you maps.

but compared to the 700 you spend on accesport, tatrix cable is only like 75 so its almost free.

[Warrtalon]

Agh, Elvis, how many times do I have to tell you there is only one "n" in the word tune!!?!! Gawddamn, fix yourself already!

Hatrick, I totally forgot about cams - you definitely want to get a good set of cams like GSC S1 or Cosworth. Those are a big mod on the Evo - about 30whp/wtq.

HKS intake if you are really stuck on HKS and such, but you don't need to get HKS for anything. It's up to you, though - the HKS intake does work.

With all these mods and meth or alky injection, you'd make ~400whp on the STOCK turbo. The Green is for making 425-450. The times you see under my name on the left are with a stock Evo IX turbo on my 05 VIII and at very high altitude (5000'). At sea level, I'd be another 4-5 tenths faster and 4-5mph, which is easily above 400whp on a Dynojet. I use E-85, but you can make almost as much power with meth or alky.

EcuFlash - the program for flashing our ECUs - is free. Knowing how to tune it is not free unless you learn it yourself. You would pay a professional tuner anywhere from $150-300 to custom tune you for your mods. If you choose to, you can get the software yourself, buy the Tactrix cable for $90, and use your own laptop to change maps whenever you want or even make small changes at the track. I don't tune myself, but I do make changes to my launch control and other things at the track, and all it cost me was the $90 for the cable. I also use that same cable to do datalogging with free logging software - hard to beat that. Please go to the tuning forum and read my tutorial thread.

[Coevopower]

Damn it Clay change your self to read tune with two N's! lol.
But yeah a nice set of cams will be very good help. Another good company for cams is JUN they make some awesome cams. and there 272s are awesome.
Stay away from Brian Crower cams. I have them now and they are not the best at all well there probably amongst the worst.

Another thing is instead of getting the FP Green you might want to get just a IX turbo they seem to be really making power. Plus its a lot cheaper, but if you are set on the green then you should be able to achieve your 400whp goal with out a prob with the stuff that is listed.

One other thing you might get is a upgraded front motor mount and a set of good tires if you got to the track.

Also a good turbo back exhaust. like Warr said AMS/Buschur/ETS I am running a HKS tho.

[hatrick32000]

yea maybe down the road i will get a set of cams but as of right now im going to stick with the easier power mods. how much does installing cams cost? i can install everything else without a pproblem but id be scared to take aprt the engine. also yea i plan on getting ams exhaust or something like it. thanks for the help

[Warrtalon]

Well, cams are one of the primary mods on an Evo. You do that before the turbo. You won't make 400 without cams, and they are a much higher hp/$ mod than the Green other than the install if you can't do them. You don't take apart the engine really - just remove the valve cover.

[AWDnot2]

What size cams would you recommend?

[Coevopower]

Drive ability wise 272s will give you a nice street mannered car, and gain power wise. this is with a stock or stock like turbo planning to go bigger turbo 280-288