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diameter

  1. BMW 6 Series - Tech Talk E24,E63,E64,F12,F13
    Anybody knows diameter of headers on 650i? Is it 2.25 inch same as rest of the exhaust?
  2. Car Audio, ICE, Car Alarms, Mobile Phones, I-Drive
    So I own a 2010 320d efficient dynamics and have front door card speakers, rear shelf speakers and underseat subs and am considering changing them from the factory ones to compliment my new Pioneer SPH-DA230DAB head unit so my question is what diameter are they please?
  3. BMW 3 Series Forum - Technical Talk on the BMW E46
    I`m still chasing poor performance and after reading many,many postings I`ve decided that I need to change the vacuum hose(s), in particular the one to the Turbo. But, before I rip out and no doubt destroy the old one(s) what size should they be? Internal and external diameters please...
  4. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi guys, A quick question, My crankshaft pulley/vibration dampner sheared off recently and I was wondering if replacing it with a slighly larger diameter one would cause any problems or is it even possible? My original pulley diameter was 172mm but I can get a cheaper one at a larger diameter...
  5. BMW 8 Series Forum - Technical Talk on the BMW E31
    Hi, I recently had a new Bosch alternator fitted and belt at my trusted local garage. The mechanic says the belt is on full tension which he felt was unusual, he is suspicious if his supplier has given me an alternator with the right diameter pulley. Unfortunately we no longer have the old...
  6. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    hi guys im trying to find out the diameter of the hole where the shocker drops into of a e39 5 series, most models i presume are same apart from m5! would really really apreciate it if anyone had a hub carrier laying about and could take two mins to measure one:hihi
  7. BMW 3 Series Forum - Technical Talk on the BMW E46
    As per title, im looking to replace my intercooler for a slightly larger one. Could do with knowing the OE hose size (if all the same?) Engine is M57 cheers
  8. BMW 7 Series - Tech Talk For All Gen Of 7 Series
    Does anyone know what is the bore of E 38 740 throttle body?
  9. BMW 3 Series Forum - Technical Talk on the BMW E46
    Hi everyone, I was just wondering if anyone know what the diameter of the e46 318 exhaust piping is, I need to get a connector/reducer to fit my replacement backbox and I am unsure what size i need. Thanks in advance, Andy S
  10. BMW 3 Series Forum - Technical Talk on the BMW E46
    Going to replace and tighten up the rear end of my car with some new bushes. Anyone know the REAR roll ball diameter on an 2003 330Ci Msport? 18mm or 19mm?
  11. BMW 3 Series Forum - Technical Talk on the BMW E21
    Hey, this is my first post so excuse me if I'm being a newbie. I bought a E36 328 a few days ago and am keen to extract a bit more power out of it. I have a list of power modifications in mind such as an induction kit and the M50 inlet manifold but I would like to get a full de-cat exhaust...
  12. General BMW Discussions
    Any ideas of diameter of the glow plugs and/or injectors on the 330D M57 motor? Looking a popping a borescope down there to look at piston condition... Any recommendations on makes/models or borescopes? Ta, Chris.
  13. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    So I'm on the look out for a spare set of alloys for winter and whilst I get my MV2's refurbed (considering a graphite grey colour - comments welcome) but I wonder can I fit 16" rims or are they too small? If anyone has wheels for sale PM me.
  14. BMW Tuning Forum
    As title states i need to know the diameter of the pipe between the AFM and the throttle body so I can get a samco replacement thanks.
  15. BMW Tuning Forum
    First time user on this forum "Hello" As the title says, I need the pipe between the AFM and the throttle body as my old rubber one has split on my 328i e36 I need to know the diameter of it so i can get a new one but I was hoping that one of you guys would just have a website link were I can...
  16. BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi, I am in the process of ordering parts to remove my ASC butterfly valve and sensor (the sensor has already gone) Im looking to replace the rubber boot with a 90 degree silicone bend, does anyone know they outside diameter of the the throttle body. I dont really want to take it all apart...
  17. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Hi If I put larger diameter wheels on the rear of my car, how does this affect the gearing? I've heard that you’ll gain acceleration and lose top speed or vice versa. Which way round is it, can anyone give me a definitive answer? :confused
  18. BMW Competition Corner
    I'm in the process of heatwrapping my M3 center section. The silencers taper up from around 2.5" to about 5", How does one go about neatly wrapping this? The problem is it doesn't taper evenly. For those who don't know what I'm talking about i've attached a rough sketch.
  19. BMW 3 Series Forum - Technical Talk on the BMW E21
    Hi guys, As I'm a poor little church mouse and can't afford a stainless cat back despite the depth of my desire for one, I have been forced to purchase a *dun dun dun!* universal backbox. It comes with a fitting kit but requires -on the Touring- an additional length of exhaust pipe (cat -...
  20. BMW 5 Series - Tech Talk For All Gen Of 5 Series
    Has anyone replaced number 12 in this diagram: Do you happen to know the diameter? I don't want to pay squillions for the BMW part when I can just use regular heater hose. Thanks, Stuart
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