Hello, I just recently bought an 03 Evo8, and looking at the current build I'm curious what the next steps are.

right now its got:

AMS 2.3l stroker kit
-AMS Crank
-Eagle Rods (I've heard eagle rods aren't the best for a stroker build)
-Ross Pistons
-ARP Main Studs and Bearings
Gt35r Turbo
GSC 280 cams
Aquamist Methanol Injection Kit
Precision 1000cc Injectors
255 lph walboro fuel pump
turbo xs front mount intercooler
act 6 puck clutch
full 3" exhaust

Car made 407whp and 375 lb/tq at 23psi (without Alc injection)


Was Thinking of getting a good port and polish and maybe some electrical system work along with a big bore TB, fuel rail, standalone ECU, and intake manifold. Also curious if the 255 fuel pump is enough.

 

if your going above 600 then double pumper is needed and COP sparkplug system. im looking at it and im like really only need

Fully built evo 8 head(port/polished 1mm valvetrain dual spring and retainers) or bruschur stage 3, crosworth head

ported intake manifold( or standlone type manny if going ecu)
65mm Throttle body (bruschur, ppi, milspec)
better clutch exedy twin hd(or carbon edition like i have)
retune( Mellon best stock ecu tuner around)

thats about it man then your car is fully built not to much more you can do and just have fun and drive it. I see no real reason to even get a stand alone unit unless your teaching yourself how to tune i suppose. fuel rail not needed unless you going to be above that 600 range. i mean there are plenty of bs mods you can do

brake upgrade
plenty of exterior mods can be done
change seats
etc

 

Keep what you have add Dual Walbro, Standalone and your good to go my brother. Dont Waste the money on a port and polish. Invest in Brake upgrades and suspension mods. Good luck. You might want to upgrade the Clutch to someting stronger

 

Get single valvesprings instead of the doubles because you wont be revving that high to use em.

 

Yeah, I was wanting the standalone because I'm wanting to learn to tune. As far as the dual springs, is there any negative impact then at lower rpm's with dual that would make single a better option. I can undertand the improvement for dual on higher rpm applications, but wouldn't they also help a low rpm with higher boost (23+), especially being stroked because of the higher velocities involved in certain points of the piston movement? I'm probably totally wrong and thinking of the bottom end more than the top in this regard. Also with the 280 cams would I be better off with something more mild to help the power curve start a little earlier and the car more ballanced on the street (more interested in a nice long sweet spot than a sharp curve creating high end power). And, yeah now that I hear it said the clutch needs upgraded, I agree.

 

272's would be better suited for your build.

 

272/272 or 272/280

Also, want to make a switch to ethanol using 1600cc injectors and a fullblown pump. But, concerned with driveability on that setup using regular gasoline when I'm out of ethanol (I've been told using a dual rail setup can alleviate this so I'm gonna have to look into that as I've never really dont anything like that).