Crower Camshafts (297-int. 287 exh.)
Crower springs & retainers
Crower steel billet connecting rods
Crower custom made crank (78.8mm stroke)
JE Pistons (11.5:1 compression, 85mm bore)
Hytech 4-2-1 header
2.5" Catalytic Converter
2.5" 16" resonator
2.5" dual-pass muffler
2.5" exhaust piping
AEM adjustable cam gears
AEM FPR
AEM tru-power pulley set
AEM fuel rail
Apex'i VAFC (for now, until Hondata)
My goal is to have a N/A GSR with approx. 250whp that can be driven daily on pump gas.
Let me know what you think
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you asked for it.
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ok, first... you have nothing in here that has to do with the age of your motor, what this car is to be used for and how you plan on sustaining this power goal. you will spend more money in the long term because of it.
how do you plan on dealing with the heat of a higher compression motor? this hasnt been noted. what about gagues? oil pressure, oil temp and knock/retard modules?
that also hasnt been reflected in your plan. do you honestly plan on pulling this specific output from a motor like this on stock injectors? you may, but not for long before you run longeterm lean. high compression pistons are coarsly designed and inherently raise the chance for detonation. 85mm bore? what about your block... any plans there? sorry man I dont see you accomplishing this unless you give this more thought.
Building engines and engineering is more precise than you think. I suggest this:
11.5:1 target CR / 220whp SAE corrected
P/P GSR head for 255/249 cam profile $750 + $500
.0020" mill/resurface
ITR valves and valvesprings $250
ITR LMAs $250
Black Nitrided Titanium retainers $200
Skunk2 stage 1 cams $750
Jun Auto Mech Cam gears $300
Hytech Full Exhaust $2200 (why not)
270cc-310cc injectors $300
OBD2 to OBD1 conversion harness $250
OBD1 P72 ECU $200
Hondata Stage 2 $250
J/S safeguard knock/retard unit $300-500
Oil pressure/Oil temp gagues/Air Fuel $200
NEW OEM ITR shortblock with stock internals $2800
Machining of P72 VVIS GSR manifold $100
Labor... oh God, I hope you can do your own work or have competant friends. $0-$2000
Fluidyne radiator, mugen thermostat, fan switch, OEM or FAL radiator fans $500
new belts, TB tensioner pulley, new valvestem seals, NGK wires, stock NGK platinum plugs for ITR 6 heat range like GSR will be fine, new cap, rotor, upper gasket kit, ARP head studs, yada yada... $300
Amsoil 10-30w full synthetic after 1500 miles for the
life of the motor.
This setup will yeild 200-220 whp SAE corrected tuned correctly I would imagine. I am working on this currently. Keep in mind this power... is great. OH WILL IT EVER BE GREAT!! It takes time and money and learning to get there.
The clutch, gears, wheels and tires, motor mounts, any weight reduction, conditions and driving skills could see 13s reliably on street tires, daily driven. Keep in mind such a beast will require tires, brakes and service on a regular basis.
All I want to do is help bro. Hate to bust on any bubbles, but be sure and give total thought to your complete setup through maintainence shedule and you will be fine. You need to invest more independant thought to your needs/goals/budget/vs reality check before you commit to a setup you cannot maintain.