Richard_Mtl Posted October 5, 2018 Share Posted October 5, 2018 Richard where you located I’m in the West Island. I'm in Ville Saint-Laurent Link to comment Share on other sites More sharing options...
Infosecdad Posted October 6, 2018 Share Posted October 6, 2018 Dang it, succumbed to all this talk about how I should have this and ordered a new one. Link to comment Share on other sites More sharing options...
Marvick08GT Posted October 6, 2018 Share Posted October 6, 2018 Mine got ripped off along with the passenger fender liner... Both pieces are sitting here waiting to go in. Brand new undercover ftw! Link to comment Share on other sites More sharing options...
lilredwagon Posted October 8, 2018 Share Posted October 8, 2018 FMIC and not blocking the scoop = BAD over heating issues on track. Still works better with a splash tray. As basic as possible you dont want a "pillow" of high pressure air under the hood. The negative pressure differential under the TMIC (which is greater with a splash tray) increases the high pressure air flow through the TMIC and out the bottom of the engine bay (flowing towards the rear of the car). In principal I agree with you, but what are your thoughts on covertrussian's data posted above? If you take his data and subtract the units of pressure from before/after, it shows a greater differential with no undertray. If you look at the '60mph steady' values, you get a difference of 0.54 with the undertray, and 0.94 without. With the larger number representing more encouragement for the air to go through the intercooler, doesn't his data show that it would be better to NOT run the undertray. Are other things at play here? Maybe the front lip actually IS doing something? Link to comment Share on other sites More sharing options...
Infosecdad Posted October 8, 2018 Share Posted October 8, 2018 Picked up my undertray. Amazing to me that my local dealer has one within a couple days for my almost 14yr old car... Installed it in 15 min. Two push clips for the wings that were already there and I found 3 bolts that fit perfectly for those mount points from my "Subaru bolts" box. Link to comment Share on other sites More sharing options...
Gex Posted October 8, 2018 Share Posted October 8, 2018 I totally bought a new one as well due to this thread. My local dealer had one in stock. Link to comment Share on other sites More sharing options...
Marvick08GT Posted October 8, 2018 Share Posted October 8, 2018 New ones are so pretty!!! Too much work to do to the car, it would get in the way right now. 20gxtr going in shortly... Link to comment Share on other sites More sharing options...
59ctd Posted October 10, 2018 Share Posted October 10, 2018 I buy all the aforementioned reasons such as protecting the bottom a bit as well as airflow for cooling. My buddy is a manager for Subaru midwest parts/svc and he said one purpose was to reduce drag and improve fuel economy. My son's 09 Outback has the small wings on each side on the bottom. I found new OEM replacements on eBay for my two Legacy sedans for ~$80 and free shipping. Link to comment Share on other sites More sharing options...
covertrussian Posted October 11, 2018 Share Posted October 11, 2018 I buy all the aforementioned reasons such as protecting the bottom a bit as well as airflow for cooling. My buddy is a manager for Subaru midwest parts/svc and he said one purpose was to reduce drag and improve fuel economy. Yup it serves that purpose too, this can be verified by looking directly at the car and seeing what hangs below the bumper, that creates drag zones. For example, when I had the equal length header the lowest pipe became a drag point: With factory header it's the oil pan and the subframe: With both of those setups the belly pan is far more aerodynamically better to no belly pan. But, with that said, an air dam (front lip) would further improve the aerodynamics IF you remove the belly pan. That's because the belly pan sits much lower then it has to: Properly designed airdam needs to stretch low enough to cover all the high turbulence components and no more. If it's too tall, it will unnecessarily increase the frontal area of the car. It just so happens that the S204 lip is a perfect fit for our cars even with equal length headers: TL;DR... On a stock bumper car, keep the belly pan on, it covers all the high turbulence zones, thus will reduce overall drag. But on a car with a front lip, the lip should cover those turbulence zones already, thus if you want to go the extra mile removing the belly pan will further reduce your aerodynamic drag. 05 LGT 16G 14psi 290whp/30mpg (SOLD) 12 OBP Stock 130whp/27mpg@87 Oct 00 G20t GT28r 10psi 250whp/36mpg 22 Ascent STOCK Link to comment Share on other sites More sharing options...
edgemoulic Posted October 15, 2018 Author Share Posted October 15, 2018 How much from the dealer? Do you have the exact part number? Link to comment Share on other sites More sharing options...
Infosecdad Posted October 15, 2018 Share Posted October 15, 2018 How much from the dealer? Do you have the exact part number? This is what I ordered/paid (before taxes). Order Contents: P/N Quantity Price EA Description 56410AG06F 1 $ 73.33 UNDER COVER-FRONT Link to comment Share on other sites More sharing options...
AWDFTW Posted October 16, 2018 Share Posted October 16, 2018 Our 2006 Outback came with the 2 small side pieces. I took them off and replaced with the full size piece. No need for upgrading to a metal skidplate on this car, she's a highway road tripper, rarely ever sees even a gravel road. Link to comment Share on other sites More sharing options...
Claw Posted October 17, 2018 Share Posted October 17, 2018 If anyone in Edmonton, Alberta, Canada wants an undertray lemme know.. it's sitting on my balcony.. just come pick it up with trade for some good root beer/ginger beer/sarsparilla. Link to comment Share on other sites More sharing options...
rhd gvr4 Posted November 3, 2018 Share Posted November 3, 2018 I have one of these for 08,will have to put up in classifides Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.