4G91 to 4G93

 

Upgrading From 4G91 to 4G93.

 

4G93

 

Some Parts For The Project.

 

Specs:-

Head Polish

GSR Intake

272 Race Cam

92P Piston

275cc Injector

Crankshaft Polished, Balanced

Works Adj Cam Pulley

Works Fuel Regulator 1st Stage

Powerzone Header

0.8mm Metal Gasket

ECU Re-Chipped 8000RPM

E-Manage M7

Walbro 250LPH Fuel Pump

 

More Updates Coming Soon!!

 

New Rims!

I've decided to change to a new set of rims, TE37 replica. Downgrade from 16" inch to 15" inch, from 7jj to 6.5jj.

 

 

The tyres are Yokohama C-Drive which also outperformed by my previous Yokohama A-Drive R1 which handles better.

All i can say, it is much lighter than my previous rims. Improve my acceleration, but the downside, i lost some of handling abilities due to smaller tyres and smaller width which reduce traction.

Already feel bored with these rims after a while, guess i made a wrong decision.

E-manage/Dyno

I've selected E-manage from M7 (complete with ignition harness)
Installation by Mr Jai from Powerzone

 

 

  

 Prepare to dyno at Powerzone, using DynoJet. Tuned by e-manage, tuning done by Mr Jai.

As a result of this upgrade, this originally near to stock 4g91 with camshaft and e-manage tuning managed to get an additional 25whp. With stock injectors, and yes, stock ecu with no rev cut. Next upgrade will be ecu rechipped and add larger injectors to support fuel and to meet the powerband of the camshaft which is currently at 3500rpm to 7500rpm, however the rev cut at 6700rpm eliminates the power peak. Hope to get more 10whp after this later upgrades. Til then, cheers! :)