968Forums.com

Ran across this the other day:



http://www.haywardperformance.com/intake_systems.php



If you scroll about halfway down the page, there's a picture of a 968 engine with a set of ITB's. Anyone here know anything about this? Although, from what I've read about ITB's, you really need a lot of other mods geared at improving the engine's breathing (hotter cams, free-flowing exhaust, larger injectors, ported heads, etc.) to get much benefit from them, so it would be a very complex and pricey mod.



Also, I'm not sure how this would apply to a 968. It doesn't seem like a smart mod for a street car, since it first has to overcome the loss of the resonant intake manifold, and then would be very peaky, I would assume. And from what I've gathered, the vast majority of people who race 968s compete in classes where ITB's would either be outlawed outright, or would come with a big points penalty. So the only application I could see for them would be on a dedicated DE car, which seems like a pretty limited application. But I'm sure they sound fantastic at <acronym title='wide open throttle'>WOT</acronym>.

you hit it pretty much spot on. opens the door for high end power, but at the expense of the low end and streetability. it has been played with on and off over the last 2 decades on our motor. to take advantage of it though you have to build a new motor with some significant changes

Yeah, looking at Hayward's web site, it seems that Honda's are comprise overwhelming majority of his business for some reason. Maybe it's because of all the kids (God, I sound as old as, well, as old as I am <img src="/forum/images/smilies/968/huh.png" class="smilie" alt="" /> ) who like to tinker with Hondas and Acuras. Plus, Hondas are generally high-rev'ing engines which make a lot of their power above 5000 rpm. Your supercharger makes a lot more sense for a 968 motor. Just curious if anyone knew anything about this particular application.

a few of us looked at those over the last few years. there was a really high power NA motor a number of years ago that used them. they work well for a race car.