SPEEDSPiRiT said:
alvin24,
56mm and 60mm is big difference right
using 60mm any pro n cons?
air too much fueling not ngam?
60mm is way too big for a 91?
or it is still alright to use?
Sorry to say, I never had a change to put in 60mm t'body... hahaha... my intake manifold was ported to 60mm coz' at first I tot wanna put in mivec t'body wan... that time I was using 4G93 t'body (56mm) only... never had the chance to try, so won't be able to give u guys an answer... my t'body and intake manifold sold to ah yong liau... ask him try put mivec t'body then tell us the difference la! wahahha... =Þ
But anywayz... from my stock t'body to the 4G93 wan... can feel the revs are lighter, and climbs faster... needless to say petrol also burns faster... u won't really feel that the car is more powerful (at least not on the butt... but dyno should show)... but u'll notice that its more responsive.
milo,
My suggestion... don't change manifold... just bore your intake manifold to match the t'body enuff liauz... coz' nobody can say for SURE that you'll gain hp... (nobody has installed and did a dyno before and after)
but if u really feel like changing the manifold... get your hands on the 4G93T ones lar... shorter, should be more responsive... don't ever get the Mivec ones... coz' those are tuned for high revs.. if u put that in, ur low end will suffer... and please go do a dyno before and after installing it, so u'll know if it actually gives u power increase, as the manifold is actually not tuned for a 4G91...
a friend of mine bought an aftermarket custom intake manifold (i think thailand mari)... dynoed before and after, dropped 20hp !! so best u don't simply change these kinda things... later obstuct the factor tuned air flow then ur hp drop! =Þ
btw, the vios turbo is actually very slow for its specs... he had a custom exhaust manifold, and is running a TD05, but only managed 130hp on wheels.... I was using TD04L, which is a smaller turbine than a TD05 for those who do not know... but still managed to squeeze so much more out of it.