Originally posted by carcraze@Feb 15 2005, 15:03
Very little I see VR4 postings nowadays. Is everyone tired of this powerful engine? Anyways, I have a few topics for discussion for those interested. And, if anyone has anything to share, do post in this thread too.
1. Does your VR4 in a Wira feel a little laggish when you accelerate? When the accelerator pedals are pressed, does anyone experience an empty spot where the engine does not rev immediately. Very minimal.... ( this is on standstill and without any gears )
2. Does improving the flow of your pipings allow for better idling?
3. Does higher fuel pressure and increased injectors provide better idling?
4. Will a fuel regulator provide better response to a VR4 engine?
1
-It depends actually what gearbox are using....if from the lower engines i.e 1.3 or 1.5 g/b where they have very closer ratio a bit from the 1.6 or 1.8 g/b.....the empty spot maybe comes from dirty airfilter or a very low idle engine timing....it can also come from ignition timing or the TPS have been altered without any specifications(main pusing kinda thingy)...
2.
-the flow is not that important on idling.....its the leaking that causes 99% of the usually VR4 gila timing....check for leaks or cracks on every little components from MAF untill intake manifold.....use pressurised technique if u have to.....
3.
-If the idling problems comes from fuel related such as fuel pump or fuel filter than maybe higher pressure fuel pump or (not increased)but cleaned gud working injectors will help.....sumtimes fuel filter also can be a problem....but conversion car owners usually have fuel pump related bcoz of the off specs or poor condition pumps from half cuts.....
4.
-Not VR4 but all actually....(but not always)sumtimes even worst coz the AFR or FPR is not tuned after fixed......must tuned and get the optimal pressure for the injectors to injects flow better....but sumtimes perasaan only.....
what ever mods with VR4....the important thing is change worn out parts first b4 start modding.....prevention is better than cure....once engine KABOOMM then keluar statments like:
"ah stupid ahh VR4 not good engine"
"VR4 problem...get evo better"
"VR4 old aledi..get GSR better"
"VR4 to common lar....get evo or gsr,VR4 not reliable like them"
"VR4 slow lar bcoz old,components not power wan...look TD05 single fin only...better get Evo3...got twin fin - 16G and big G summore"
"VR4???!!!No good lar....better get GSR lar...easy fit....very fast siap wan"
above are quotes from not to say dumb but mostly ppl will say about VR4...sum who says them are owners that have bad experiances...which usually come bcoz of them also....no repair only tau modified saje....but what i really hate n sumtimes pissed is that quotes like above come from ppl who only reads forums,mag's,ask ppl.......and doesnt owned a VR4 but talk like he blew up 3-4 VR4 aledi....
:)
