I don't know how much is my horsepower now because I didn't do any dyno.
All I can tell is my engine currently is fitted with Piper Performance Cam, Arospeed Adj. Cam Pully & Zerone Lightweight Aluminium Crank Pully.
For airflow improvement, I've fitted with K&N Air Filter (with piping which inside also fitted with Cyclone & Twin Power Device Airflow), NKS airflow compressor (with airflow meter), Zerone Oil Catchment Tank & 4 unit of Air Power.
My gear box is standard stock but fitted with 1.6cc flywheel & Exedy 4 plate clutch pad.
I'm using double plated water tank.
My exhaust systems is 4-1 extractor, with large center bullet & twin muffer (of which 1 muffer is blowing direct with electronic control setting).
My spark is Iridium sparkplug with modified plug cable (using gold-tip audio cable), 90Amp alternator with voltage stabilizer & voltage enhancer.
My braking system is currently using Mit. Pajero master Pump with potted front & back solid disc. Front caliper is standard & back caliper is for Honda Accord.
Road handling is enhanced with Ultra Racing bars (full spec except for room bar), Monreo Front absorder with APM spring & spring boosh damper, back absorber is KAYABA with APM spring & spring boosh damper. Back absorber is lighted high with 4" boosh.
Rim used is 16" with Michelin tyres (size 205 x 55 x 16W).
I also fitted turbo timer because my engine jotted each time when i turned off the ignition.
With all these in, I can do at anytime easily 140 km/h with 4,000 rpm in 13 second.
My problem is each time I do up slope, I lose power.Any slope above 45 degree, need 1st gear if rpm is below 2,000.
Tried PnP my head but engine water overheated after 2 years usage (bad workmanship). Current this is my 3rd head & 2nd manifold. My carb already change 3 times...
Even my head casket burned 3 times... Now I'm using standard head & manifold & head casket. Engine water overheated problems resolved with double layer radiator & racing spec. water temperature sensor (standard stock sensor can only go 80 degree C but my current sensor do 120 degree C).
Now my engine temp pulak goes 100 degree C. Engine pressure also high... At anytime there are oil spilled at the engine oil cap....
Sifu, 4G67 is a original turbo engine ka??? My budget (all in including inspection) is around RM7k to RM8k.