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About Sumflow

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    Not important MGA, Austin Healy, Corvette

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  1. Johnny-5, I am not in a position to say if you can or cannot feel an improvement using an aftermarket air cleaner on your Porsche. In my mind, to assume that you can, you also have to assume that the stock filters are in some way degrading and that Porsche knowingly provides air filters with their cars that are inferior. I do not have any basis or reason to substantiate these assumptions and they are not consistent with Porsche products. Hot Rodders in California found that cotton filters increase horsepower because it breathes easier than paper, and cotton could be washed. In Europe BMC air filters are original equipment for the Ferrari Formula 1 team, and Ferrari GT race teams, and Porsche Motorsports, Mercedes Benz F1, and GT race teams, and AUDI motorsports team. The filtering material is cotton gauze soaked in low viscosity oil with a carbon fiber support structure for strength and weight. Formula 1 teams would have done their own dyno tests, much more extensively than anywhere in the private sector. While we cannot expect them to release these results to each other, or us, the very fact that the results of their testing led to using cotton fiber in a formula one race, shows that the results must have beat whatever was in contention. They make no claims about how much contaminates they remove and hold. But they say to wash them at every 15,000 km. Like mentioned earlier they are mainly concerned with low airflow restriction, and in this case withstanding the vibrations and heat produced in racing without having deforming problems in the filter. For us the function of an air cleaner is to trap and hold dirt without restricting airflow. As the filter traps more and more dirt, airflow becomes restricted. New dry synthetic filters, "flow best, and restrict less.” Mobil 1 uses nano-fibers in Mobil 1 oil filters because they filter better. Synthetic nano-fibers replace stock oil wetted gauze, or foam conical air filters that is supplied with custom induction systems, as well as stock air cleaners. To increase filter surface area and the volume of air entering the engine, Hot Rod systems often use a conical foam filter pointing toward the direction of airflow. Custom induction systems like those made by K&N using stock oil-wetted gauze or foam conical filters can be upgraded with the new synthetic filters. Open these segments taken from a DVD in a new tab, and click the boxes on the left side. The K&N filter cotton filter requires cleaning/re-oiling every 50,000 miles. But if we could replace the stock filter with a more efficient synthetic nano-filter, there would be no need to oil the filter and screw with our sensors. Just vacuum the air cleaner when changing our motor oil. The dry synthetic nano-fibers, are better for filtering air for the same reasons as for filtering Mobil 1 synthetic oil. Synthetic nano-filters theoretically filter better than paper, and will soon be standard equipment on high performance vehicles. How can the replacement intake, or air cleaner, or anything, do better than a new original Porsche one unless the company dropped the ball on the engineering in the first place, or the materials have improved since then.
  2. I am running a 97' with 75,000 miles. Is this the general consensus that the entire Row M030 suspension, including springs, struts, sway bars and bushings, is the best way to go for better street handling?
  3. Simple green is on the stronger side. You can use Dawn dishwashing with enzymes which is milder as often as you like. Dawn, as long as you have enough, it surrounds the oil molecules and and lets them float away in water. You can clean everything. I used Dawn to flush out the engine last year when oil got into the water. I was not aware that any areas need to be taped off from soap and water on a Boxster. I put Dawn in a generic variable spray bottle. Straight or mixed with water it does not seem to make any difference. Just squirt it at the dirt and it floats away. You can flush areas with a low pressure hose, or wipe it with cloth, artist brushes, or just your own fingers. You can safely degrease painted areas, tyres, and interior upholstery. You are not using force to get the dirt off, it is a mild chemical action. The felts in the truck can be washed and hosed down, or put in a gentle washing machine using Dawn. You can look Dawn up on the Internet and get it at a local store. Your engine compartment will be clean enough to eat off of. Porsche said the cars are made to be driven not polished. But if you look on detailers sites, if they are not trying to sell you something they will tell you about Dawn.
  4. If you ever had a 914, please have your say. There is a 914 basher in Amazon.com Customer discussion Click: Amazon ~ Discussions: Once a year oil change: when is the best? This used car salesman who has probably never driven a middie, has been unjustly badmouthing the 914. Can everybody please chime in. He says 914s "were cheap and showed that Porsche engines are sludge monsters." It is unfair to young readers just coming in, to hear this rubbish without your opinion. Please go in there and straighten this guy out about Porsche!
  5. 1997 Boxster vin #WPOCA2987VS620323 The Bosch technical department told me to only use the original plugs not the new ones. What part number plugs can I use, and does anyone theorize why.
  6. The original cooler does not need any kind of adapter. it fits into the block, with four seals and four screws. These were the directions to replace the oil cooler. Although there was no reason to mess with the throttle intake. It does not show anything about draining the oil, or removing or replacing a vent line. There is no mention of any adapters, or air vent lines. Can you please tell me the order of the three hoses top to bottom under the oil filler hose? Oil cooler hose? Radiator vent hose? Coolant filler hose? Coolant overflow hose? Whoops that four, I only see three. Does line 18/30 the top line go to the oil cooler? Where does 16/01 the second line go? Where does 20/29 the third line go? The newer cooler that the Porsche dealer got for me was smaller in height, width, depth and volume than the original oil cooler. It weighted noticeably less which is why it appears tiny to me. There is very little space between the top of the cooler and the air-intake tube that runs from the air-filter to the throttle body, maybe 3/4 of an inch clearance maximum on the driver side. So if there is a bigger cooler it will be a tight squeeze. Isn't adding the action of venting, much like that of adding a breather? Maybe the new cooler has tighter passages which require a different oil-pump to be efficient, or the new oil pump, runs at a different rate, which required a different oil cooler? I was under the impression that there was an original vent from the top of the engine going to the surge tank. When they replaced the oil pump and all that, and added the new cooler. They ran the vent from the tank to the new cooler, which is higher than the engine, instead. Where is the unused inlet into the expansion tank? Mahalo..
  7. Why couldn't you just run this to the engine vent line, with a "T."
  8. Jeff don't all the after market exhaust systems make more noise than stock. That is there trade off, they are tuned less to what your engin needs and make more noise!
  9. Two Porsche dealers, and the shown TSB 1001, seem to say that if you change the oil cooler to one of those new tiny ones, that you have to change all of this other stuff, and add adapters etc. It is a mess. The simplest thing is to just replace the original part and drive away. Porsche sees some connection between the oil pump in the front, the oil cooler on top , and the changes that would have to be made to the expansion tank in the boot. Changing the cooler will affect the velocities, the passage lengths, the volumes, and the breathing of the engine.
  10. >I really don’t see the relevance to this tread as the oil pump is on the other end of the engine from the oil cooler…

    I do not see the connection either. But two dealers, and the shown TSB say if you change the cooler to one of those new tiny ones that you should change all of this other stuff, add adapters etc. It is a mess. The simplest thing is to just r...

  11. It looks to me,that if the original part is not replaced, that is if a part with a different part number is put on. Then a new oil pump with double-sided mount must be installed, and the oil pump must also have an intermediate plate installed.
  12. Thank you very much. The dealer told me it was TSB 7-99, but it really was TSB. #1001 with a date of 7/99, for a 1997 Boxster.
  13. Does anyone know here I can find Technical Service Bulletin TSB 7-99?
  14. Believe me all I want to do this morning is go terrorize some two lane blacktop and pass a bunch of cars for the honor of the marque. But how can the same part fit both blocks, when as you can see the blocks are clearly different. One has flat oil passages, the others are recessed. They tell me the same part shows for both years, but they cannot confirm that the adapter fits all 1997 blocks. I am not trying to buy a part number, I am trying to find a solution to an oil leak. This is the newer block. The surface is flat, with the seals on top. This must be where the adapter lies. Don't get all confused with part numbers. I do not believe in part numbers. What do you see? Does it look to you like there are the same blocks? This is the original block, with recessed oil passages and seals. This is the veteren oil cooler's oil passage connection. The cooler is bigger than the new one but in no way will it hold two liters, two cups is more like it oil and water both.
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