Anyone running ITBs on their 951/944/968
#32
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Do you think it would be better to have an ITB setup like the 968 Turbo RS where they lead into a manifold? OR would it be better to leave them all open individually and have no connection at all?
But leaving them all open has them sucking in hot air form under the hood.
I plan on doing this project to a spare manifold that I have and the GSXr ITB's.
"What Would You Do?"
But leaving them all open has them sucking in hot air form under the hood.
I plan on doing this project to a spare manifold that I have and the GSXr ITB's.
"What Would You Do?"
#34
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Thought about that but its on the opposite side.
I did some research and there are intake manifold "boxes" that direct cold air to the ITB's and you can put a cone filter at the other end. I'm thinking of building my own and routing a big cone filter under the nose panel to get the coldest air possible.... either there or put it where th stock pick-up tube goes and block it off from the rest of the engine.
I think the ITB's will still work the same and the box should also cut down on intake noise (but I do like the sound).
Filterig the air is a top priority here.
I did some research and there are intake manifold "boxes" that direct cold air to the ITB's and you can put a cone filter at the other end. I'm thinking of building my own and routing a big cone filter under the nose panel to get the coldest air possible.... either there or put it where th stock pick-up tube goes and block it off from the rest of the engine.
I think the ITB's will still work the same and the box should also cut down on intake noise (but I do like the sound).
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
Filterig the air is a top priority here.
#38
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Originally Posted by V2Rocket_aka944
Take the hood off completely and get a very small cone filter for each TB and jam it in the opening. ![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
Funny... harley has a setup like that. Who knew?
![thumbup](https://rennlist.com/forums/graemlins/thumbup.gif)
#39
Official Bay Area Patriot
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Fuse 24 Assassin
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UPDATE.
I just stumbled across an Universal Individual Throttle Body kit at an Austrailian Tuner's Website!!!
http://www.tweakit.net/shop/product_...roducts_id=121
![](http://www.tweakit.net/shop/images/Throttleblock4cylkit.gif)
Based upon my findings and numerous drafts on paper, the most difficult issue I am running into is getting the Bosch L-Jetronic to adapt to this setup. As most of you know, because the ITBs sit so close to the intake ports of the cylinder head, it can be difficult to sustain a satisfactory vacuum to maintain a proper idle, as well as vacuum to the fuel regulator and damper, as well as the brake booster (MOST IMPORTANT!).
I'll continue to see what ways I can find a more effective way of getting the proper vacuum to not only the areas mentioned above, but the idle stabilizer valve as well; this is ESSENTIAL in the Bosch L-Jet setup on the 944.
I just stumbled across an Universal Individual Throttle Body kit at an Austrailian Tuner's Website!!!
http://www.tweakit.net/shop/product_...roducts_id=121
![](http://www.tweakit.net/shop/images/Throttleblock4cylkit.gif)
Based upon my findings and numerous drafts on paper, the most difficult issue I am running into is getting the Bosch L-Jetronic to adapt to this setup. As most of you know, because the ITBs sit so close to the intake ports of the cylinder head, it can be difficult to sustain a satisfactory vacuum to maintain a proper idle, as well as vacuum to the fuel regulator and damper, as well as the brake booster (MOST IMPORTANT!).
I'll continue to see what ways I can find a more effective way of getting the proper vacuum to not only the areas mentioned above, but the idle stabilizer valve as well; this is ESSENTIAL in the Bosch L-Jet setup on the 944.
#40
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Getting the proper vacuum is easy, you just have port after each throttle body that are joined together into a common vacuum supply. Just like the original manifold.
#42
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I found the vacuum issue not a huge problem for me... my thoughts have gone to what to do about the AFM??? How will the computer read the incomming air without it?
Still looking for an alternative for that...
Still looking for an alternative for that...
#44
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Originally Posted by Gremlin85
I found the vacuum issue not a huge problem for me... my thoughts have gone to what to do about the AFM??? How will the computer read the incomming air without it?
Still looking for an alternative for that...
Still looking for an alternative for that...