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Message: <blockquote data-quote="J101" data-source="post: 1403912" data-attributes="member: 15660">v8nutter,some other daily driven car brands dont spray fuel on the backside of the valve. as you said about the ITB setup, same thing goes to the b-series that places the injectors so that they spray more towards the port floor. injectors spray a line of fuel onto the backside of the valve, meaning the flat, valve itself, right at the base of the stem. just imagine the stem is like a leaf stem. infact, the ports are more up-down than a daily driven engine, which gives the intake charge a more direct path to the cylinder. that is why probably the honda vtec is still ahead than the rest of other car brands i think. have you check out TWMinductions, what do u think about them?shiroitenshi,for the ITBs, the reason being why its still famous but never been applied are due to the fact its loud to your neighbours, hard-to-tune as some would say and must use an EMS that inccurs cost, furthermore as few would say "aiyah, type-r intakemanifold also can make 240whp also mah". so due to all these its not an easy toy to sell at performance shops. furthermore, it has been categories as "Racing Use" only. dont forget, Toda C cams are racing use also rite? hehe. maybe due to the big impact of the JDM scene in america that makes ppl drive with rollcages, quads and carbonated bodyparts to work or school.about the filteration, you can get piper-cross for a set of RM380.00 to fit on your quads. But then again, the response is slightly deter and the sound will not be as loud as open trumpets. u can use fine meshed-wires(not cheap tho) at the hardware store and place between the trumpets and TBs. that should help. Another thing is placing a metal sheet underneath the quads to protect from water splashing during raining.i would say ITBs has good response as long you have good compression and good tuning. it can be as small as a b16a or some big displacement 2L, all can be applied for at your own chosen applications, track, drag or maybe street. i believe at such track or drag setups, extreme tuning will be applied which takes racing fuel, semi slicks and etc. so we cant compare street world and competition level.if you have a good broadband line or leasedlines, download this videohttp://users.electrocity.ca/dru/t-blizzard/t-blizzard_EG.mpg (right click, save-as)cheers guys</blockquote>