Quote:
Originally Posted by eci4ever
hi, just curious about one thing,
How much we can boost if using stock 4G67 internal?
like piston, rod and crank..
if using 1.5mm or 2mm metal head gasket, is it safe to boost below 1 bar
using stock internal 4G67?
Sorry for asking many question.. Thanks in advance..
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bro,juz my exp..fren of mine using,evo 6 piston,86mm,standard 4g67 rod and toda 1.5mm metal gasket, balance crank,pulley and flywheel.walbro pump and sard fuel reg and and currently run wif hks gt pro turbo,hks wastegate and this fellow boosting on 1.8bar during drag time and normal driving is 1 bar...so far he drive the car 6 month witout any problem.not to forget the engine monitored by afc neo only..bare in mind no high cam.
my advise to you to be play safe...normal driving 0.9bar shoud be ok...and if you
intend to drag(bersukan)1.2 or 1.3 bar in enough(not in sepang ok)
what ever the advise is, you should go and talk wif you foremen 1st before making
any dec ok..happy trying.
