March 27, 2009

Time sWarp

Bought this front-cut of Mirage Cyborg back in 2006. The dashboard wasn't good in conditon (a lot of cracks and tears) so i opted a 'new' dashboard along with A/C climate control (mine came with the manual control unit) and rear disc brake. Plus, the usual item in the 'package' were gearbox, wiring, ecu, whole aircond unit, clusters and fuel tank. It costed me RM6400. I managed to trade my 4G13 engine with gearbox for RM700.

I bet everybody knew (especially Proton's kaki) the technical spec for this infamous 'vtec-version' of Mitsubishi engine. For you who 1) drives hi-tech European cars which not only freaking fast but also came with super safety features, and 2) don't give a crap about cheap Japanese cars, here's the spec.

Engine 1.6L 4 cyclinder DOHC 16-valve MIVEC
Model 4G92 (Gen. 1)
Capacity 1597cc
Bore 81mm
Stroke 77.5 mm
Compression Ratio 11:1
Valve Timing Intake : Open (BTDC) 17' (primary cam) / 47.5' (secondary cam) Close (ABDC) 31' (primary cam) / 72.5' (secondary cam)
Exhaust : Open (BBDC) 41' (primary cam) / 70' (secondary cam) Close (ATDC) 11' (primary cam) / 35' (secondary cam)
Cam Spec Intake : duration : 228' / lift : 7.58mm (primary cam) 285' / 10.41mm (secondary cam)

Exhaust : duration : 232' / 8.24mm (primary cam) 300' / 9.83mm (secondary cam)
Maximum Power 175ps @ 7500rpm
Maximum Torque 17.0kg/m @ 7000rpm


TRANSMISSION
Manual 5-speed

Gear Ratio:

1..........3.083
2..........1.947
3..........1.285
4..........0.939
5..........0.756
R..........3.083

FDR......4.592


Yea, it's no brainer to compare with the latest M3 or Porsche's 911T with VTG engines, but pair it with a light chassis, this is quite a pocket rocket. The happy-revving engine came with short-ratio gearbox. The individual gear ratio is actually the same like 1.6L or 1.8L Mitsu 4G9X ratios, only the final drive on the MIVEC version is bigger hence the shorter ratio. In my opinion, that's what makes this engine not up the par with Honda's B-series which came with "more-revised" gear ratios. Nevertheless, this is the only atmo-fed 8200rpm screamer from Mitsu. Came also with the front cut was a set of front SR damper complete with coils. Since money was a big big concern for me at that time, I use the ugly looking absorber which turn out to perform like charm. It was stiff enough to handle the car with no funny 'aging-symptom' noise. The at rear, me being so poor opted to re-use back my factory APM damper. Kinda scary when the car travel above 120km/h. You will feel like you're no longer on a car, more like on a boat. Alas, cheap cars + poor owner..

*sighing.. yet again






1 comment:

  1. Thanks for the post and great tips..even I also think that hard work is the most important aspect of getting success..
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