82 mm throttle body

[ike84]

Originally Posted by Muskoka Minute

Looking Great so far!
Please keep us posted

Cheers!

Thanks Muskoka! Btw I chimed in on your motor situation. My heart goes out to you.

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[itsnotanova]

I stuck a 3.4 intake/throttle body and 3.8 997 exhaust manifolds on my 2.7 rallycross boxster. I can feel that i lost some low end torque but gained higher rpm HP. I'm rarely below 4000 rpm so it works for me. I moved the air filter inside the trunk and I'm surprised at how quickly the filter gets dirty. I've raised the trunk lid in hopes of drawing in more fresh air but I still need to find a way to get more fresh air inside the trunk. The air coming from the rear wheel well is very dirty. Granted I'm racing in dirt, so you should have a lot less than me.

Here's my build thread

6 months to live build thread

[ike84]

Originally Posted by itsnotanova

I stuck a 3.4 intake/throttle body and 3.8 997 exhaust manifolds on my 2.7 rallycross boxster. I can feel that i lost some low end torque but gained higher rpm HP. I'm rarely below 4000 rpm so it works for me. I moved the air filter inside the trunk and I'm surprised at how quickly the filter gets dirty. I've raised the trunk lid in hopes of drawing in more fresh air but I still need to find a way to get more fresh air inside the trunk. The air coming from the rear wheel well is very dirty. Granted I'm racing in dirt, so you should have a lot less than me.



Here's my build thread



6 months to live build thread

Very cool dude! I'm a big fan of your work, I nearly cried when I got to the end of your original build thread .

One idea I had was to utilize the rear wing (I stole the idea from lambo) drill holes in the front face of the wing so that when air hits it it will be directed down and into the trunk. With enough perforations there will probably be plenty of airflow there. The problem obviously is water there, but if it's a dedicated track car I would think it might work well.

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[itsnotanova]

Originally Posted by ike84

Very cool dude! I'm a big fan of your work, I nearly cried when I got to the end of your original build thread .

One idea I had was to utilize the rear wing (I stole the idea from lambo) drill holes in the front face of the wing so that when air hits it it will be directed down and into the trunk. With enough perforations there will probably be plenty of airflow there. The problem obviously is water there, but if it's a dedicated track car I would think it might work well.

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Who or what is lambo? I've been thinking some kind of scoop too. Just enough scoop to pressurize the trunk to keep dirty air from entering elsewhere inside the trunk. Any water that would enter would leak out the bottom of the trunk and shouldn't be able to enter the motor.

[itsnotanova]

Ideally something like this is needed for the environment I race in. I'm not sure I want to take on building something that big and complex though

[ike84]

Originally Posted by itsnotanova

Who or what is lambo? I've been thinking some kind of scoop too. Just enough scoop to pressurize the trunk to keep dirty air from entering elsewhere inside the trunk. Any water that would enter would leak out the bottom of the trunk and shouldn't be able to enter the motor.

The lamborghini aventador has an active air management system that is ridiculously complex and equally impressive. One of it's components is the rear wing, the pillars of which are hollow and when appropriate will open up vents to channel air downward through the pillars. We obviously don't have pillars on outlet wings, but the body of the wing is hollow right? And the bottom of it communicates with the trunk. So you could theoretically turn the front of the wing into swiss cheese and it would (hopefully) pressurize enough to force air into the trunk.

Btw, those vents on the side should have a flapper on them to keep dirt out. I don't know if you still have them but it may help putting them back in to keep the dirt from the wheels out.

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[itsnotanova]

Originally Posted by ike84

Btw, those vents on the side should have a flapper on them to keep dirt out. I don't know if you still have them but it may help putting them back in to keep the dirt from the wheels out.

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I probably did take those off as they're right next to my exhaust now. I'm going to seal them off with some sheet aluminum and raise the front of my trunk a little higher. If you ever look at your car after it's driven in the rain, you'll see the air coming off the side of the B pillar swings back towards the center of the trunk creating a slight higher air pressure right where the raised portion of the trunk would be. In theory, making a great location for a scoop.

[ike84]

Originally Posted by itsnotanova

I probably did take those off as they're right next to my exhaust now. I'm going to seal them off with some sheet aluminum and raise the front of my trunk a little higher. If you ever look at your car after it's driven in the rain, you'll see the air coming off the side of the B pillar swings back towards the center of the trunk creating a slight higher air pressure right where the raised portion of the trunk would be. In theory, making a great location for a scoop.

Did you do anything to seal the ecu from dirt and water?

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