ITB's and FI
^ It's up to you what you let stay around and what you lock. I was just expressing my dissapointment, not saying anyone is not allowed to ask for a cool set up..that's it, take it easy mate
I'm keen to see someone do it and I'm sure it will be beneficial. Just not sure A) How beneficial B) Will even people who buy ASM products think it is worth the cost. 
There are added issues of tuning as you no longer have a MAP signal. Unless you connect the MAP sensor to one of the runners after the butterfly. Otherwise you have to re-tune using throttle position.

There are added issues of tuning as you no longer have a MAP signal. Unless you connect the MAP sensor to one of the runners after the butterfly. Otherwise you have to re-tune using throttle position.
individual throttle bodies are good mostly for the velocity stack factor. aside from that there is really not much benefit to using them. velocity stacks are used to speed up the flow of air at the inlet where the inner diameter is narrowed, in a FI situation where there is constant pressure in the intake manifold that is greater than the pressure in the combustion chamber (causing air to be pushed through instead of pulled in by suction), velocity stacks dont do much good. there was a veilside vs virtual works manifold thread on supraforums where Chris at HPF flow-tested both manies (the veilside has velocity stacks, the VW doesnt) and the veilside not only flowed less but it also made a violent buffetting sound at higher flowing levels, most people made an educated guess and pointed to the built in velocity stacks in the manifold. theres my spewl on velocity stacks and FI. If you want to do individual throttle bodies for any other reason i dont see them justifying the cost since an AEM EMS with a competent tuner will tune the shit out of the s2k motor and most likely cost less than an individual throttle body setup.
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mega_stream
UK & Ireland S2000 Community
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Nov 17, 2008 01:08 AM




