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Message: <blockquote data-quote="Useless" data-source="post: 1160306" data-attributes="member: 670">speed,thanks for highlighting my error in stating variables vs constants. i should really stop typing faster than i am thinking *Useless slaps own forehead*Peeps,the thing here is that ignition timing does play a significant role in engine performance improvement. We may set the ign timing very close to ping limit, but what would be the final lambda output? There will be a region of unburnt HC in the af mixture. Oxidation will be incomplete even past the afterknock phase. However, remember that knock occurance is dependant on combustion chamber shape, operation range and fuel octane level. As of engine combustion chamber shapes, some engines have direct relationship of knock vs rpm, but some have an inverse relationship. but on a more sensitive note, how many of us are really concerned of our emmissions? with longer cam durations, bigger valves, larger injectors, upgraded fuel pump, etc, alot of unburnt fumes will already be exhausted into the atmosphere. personally for me, reliability is having only to change engine oil at at least 10,000 km, power output at more than 100hp per 1 liter engine displacement under normal aspirated operations, with a good torque curve and compliant to minimum of euro4 emission regulations.i think that the 4age 16v engine can put out 140~150 hp atw with some mods and still give good reliabilty and fuel consumption figures. This of course having the stock ecu replaced. an interesting area which is still unchartered in our local RnD is injector and injection characteristics. On the whole, happy tuning and modding!</blockquote>

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Genting for breakfast tomorrow.

Anyone interested go Genting coffeebean for breakfast tomorrow?

7.30am gather at Shell Petronas stations at MRR2 after flyover from Kepong.

7.45am depart.

8.30am arrive Coffeebean.

10am descent. :driver:

dvvt using microtech

hai evry1..i have smthng to ask u all..now im using viva 1.0 auto,so i plan to use microtech to seek more pwr from this dvvt engine..so i need u all give sme advse or opinion it is better or not using microtech..how...

LF: Used Evo 9 Rear Bumper

Looking for used e9 rear bumper, preferable in silver colour.

If you have one for sale/trade in, kindly call or pm

Mark

Thanx