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Thanks. The RUF bi-plane wing is usually fixed in the up position, but I thought it looked a little too "boy racer" when it was parked so I didi a project where I converted it to be active aero like the upper wing on the Twin Turbos. Now it's more understated when parked and below 77 MPH but lifts automatically for the additional downforce at higher speeds. Here are 2 pics - one with the wing up (older smoke taillights) and one with it layed down with the newer Dectane taillights.
Originally Posted by mk3boy
thanks. that is a pretty nice exhaust on there. Love the bumper and wing
Thanks. The RUF bi-plane wing is usually fixed in the up position, but I thought it looked a little too "boy racer" when it was parked so I didi a project where I converted it to be active aero like the upper wing on the Twin Turbos. Now it's more understated when parked and below 77 MPH but lifts automatically for the additional downforce at higher speeds. Here are 2 pics - one with the wing up (older smoke taillights) and one with it layed down with the newer Dectane taillights.
I hear this a lot and there is clearly is some reason to think this could be the case. However, I have monitored intake and ambient temps with both stock and Fabspeed intakes and once you are moving at any speed there is no difference in intake temps. The massive volume of air being sucked through the engine compartment is happening so fast that there is no heating of the air going on in the engine compartment. Now at idle and slow speeds there is a difference, although not as much as you may think, between 15-25°F, but at those speeds it makes zero difference to performance anyway.
I just ran across some interesting reading on this subject in the official Technics book I recently received... see the attached shot of the section talking about those inserts at the front of the air box being there to allow sound to escape but to "avoid the intake of warm air...". I'm thinking that PhilD's observation of this not mattering at speed and only affecting the intake charge at slow/stopped speeds is correct (maybe affecting off-the-line performance?), but I just thought it was interesting to see Porsche directly mentioning that they address this issue with that polyamide material in the sound inserts.
I don't see the pics, but depending on how much higher you're trying to get the tips, changing to RSS's semi-solid motor mounts will lift then about 1/4" at the bumper since they don't sag under the weight of the engine like the OEM hydraulic (rubber) ones do. Will also make the car drive and shift better as it keeps the mass of the engine from shifting around under load.