DIY ITBs, Do It Yourself Individual Throttlebodies! With pics! Options

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This thread will be an ongoing How-to article on installing Individual Throttlebodies from a 2004 Yamaha R6 onto a 7afe(ae102).

The first few installments will be purely mechanical, and will assess designing a bracket, figuring out how modify the fuel system on the engine, and fabbing up a plenum and with spots for most sensors(haven't decided on the EGR system yet). Towards spring, I will be installing the entire setup and fine tuning it.

This really is a grassroots mod, and i don't believe it should cost much more than $200 if you know where to look for parts and how to do basic welding. I bought my ITB's off ebay for $20, so the stuff is out there.

Any comments or suggestions can be posted at anytime, however please make sure they are relevant to this thread. Thanks and enjoy.

*pics will be up soon of the ITBs

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Like i said before, the goal isn't hp. ITBs are mostly used on peaky engines since they are usually oversized for the general application. My major point is that i'm using ITB's that will flow just a little more than stock manifold runners and that's it. They are not that large in size, and actually may be too small to make significant power gains. The stacks will act as the long runners, from the TBs and into the plenum. Nothing is oversized for this application, and i'm not seeeking any sort of gains related to top end. It's more like i'm building this intake system to top out at 6000rpm.

I'm sure we can all agree the 7afe manifold can be better tuned to produce results, well i'm just trying to do that but keep a nice crisp throttle response.

As for the tuning, the o2 sensor will be mounted a closer to the collector than the head. I've realized that flow will be a problem if it's too close to the head, but i don't have a spare mani to figure out where i can mount them without restricting too much flow. I also don't plan on putting on a header. This is just a rolling test bed for the intake system. Afterwards, i'll probably scrap it(or give it away) and move onto the 1zzfe i have. This is more of a learning experience for me and to test what has not been rarely done.

This car is just a true daily driver, this intake system is just a test. It's not meant to be a performance mod per say, but to atleast help me(and perhaps some other) to understand things a bit better.