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Waynew

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Profile Fields

  • Porsche Club
    PCA (Porsche Club of America)
  • Present cars
    2008 911S (997)
  • Former cars
    2003 911
    2001 Corvette Z06

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  1. Frank, I got the filters at FVD Brombacher. (954) 571 2050. Ask for Rhonda. The part No. is 470 468 20 BMC Sport Air Filter 977 X51. I have never had a problem with them. Just don't over oil them. (They come pre oiled and are just right from the factory.) I would recommend them over the stock X51 filters for both quality and performance. Wayne
  2. Thanks Dave. It's good to know my "seat of the pants" dyno was not incorrect. I agree the X51 TB with the modified RSS Plenum is the best way to make the X51 airbox + X51 TB work. Phillip, I was not aware of the RSS option when I was putting the parts together. I took my stock plastic plenum in the shop and told them I wanted the X51 to match my plastic plenum. The shop guys suggested I use the RSS plenum. I agreed to the recommendation and they got the parts and machined it to work. I just picked up the machined RSS part and assembled everything back together! The only other alternate is to use the stock 997S TB with a "rubber bushing" to mate up the the X51 airbox. With the mods I have made: X51 Air Box, X51TB, Fabspeed Headers, Fabspeed Mufflers, I am very satisfied with the results. (Maybe not 400 HP, but a lot more than 355.) The car has great acceleration and the track time has greatly improved! (Unfortunately not my driving skills.) Wayne
  3. I live near Louisville Ky. I don't know exactly what was done to modify the RSS plenum. (I did not see the part until after the modification, and the fit was perfect.) I do know that it took a bit of machine shop work to make the fit. I did not want to modify any stock parts on my 997S (ie manifolds or X51 TB) and the stock plastic plenum was not a ggod choice for machining. The stock RSS was suggested because it was metal and could be easily modified. Wayne
  4. Yes I had the existing RSS IPD modified. I recommend a good machine shop unless you have the tools and the talent. Wayne
  5. Dave, You were correct about the Road & Track article 1/4 mile time. I was basing the timing et on my "recall" which apparently was not exact. However, the X-51 TB will work on the existing 997S intake manifolds without modification to the TB or stock intake manifolds. The TB connects directly to a plastic intake distribution tube (Plenum). You have to use a RSS IPD Plenum that has been adapted to fit the stock X51 TB. This is not a big deal. Wayne
  6. Yes, Road & Track Tested a stock 2005 997S and reported 0-60 time of 3.9 sec., but the 1/4 mile was about 12.8 @ 110 as I recall. I have not dyno'd my car but my track time comparison is better and the acceleration differences are significant as follows: Stock 997S 0-60 best time = 4.1 1/4 mile best time = 12.9 @ 111.9 Modified 997S 0-60 best time = 3.9 1/4 mile best time 12.2 @116 To answer the question about the X - 51 throttle body, the base attachment is exactly the same as a stock 997S TB, so no modifications are required. The intake is larger. You can use a stock TB with the X-51 air box, but it requires a "bushing" at the rubber to TB connection. Wayne
  7. I it all at Suncoast Porsche. The air box was $1000. I don't recall the TB price. You can get on their website and review their parts catalog online. Wayne
  8. I have a 2008 997S airbox with the fabspeed "cold air kit" and BMC air filter. The air intake system had 2000 miles on it when I replaced it, so it is near new condition. The fabspeed cold air upgrade was $220 and the BMC filter was $120. (This does not include the OEM 911 S air box.) This unit will fit the 997 Carrera, but has the badging of the 3.8L S engine. I have replaced my air box with the X-51 carbon fiber system. (Including the throttle body.) The whole unit is sitting in my closet and I would be willing to sell it to you for a reasonable price. If you are interested let me know. Wayne
  9. Hi; I have considered all options for performance. (I don't like turbo, and superchargers/ chips void your warranty.) I really prefer both the sound and response of naturally aspirated engines. I have a 2008 997S and have been very successful with HP/ performance gains by adding the following: 1)Fabspeed headers/ mufflers, 2)X-51 Carbon Fiber Airbox with new X-51 throttle body, 3)BMC air filters. You can do all of this for about $5K if you do the install yourself. I have not dyno'ed the changes but can guarantee you will be satisfied with the "seat of the pants" test. I have road tested by comparing to the new 997-2 (385HP) and smoked the new 997 in both 1/4 mile and track time. 0-60 times are 3.9 sec., 1/4 mile 12.2@116mph. (This is pretty darn close to GT3 specs.) This would be my recommendation for HP/ Performance enhancements. Wayne
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