Notices
 

  

  • VW Audi Forum - The # 1 Volkswagen (VW) Group Forum

    VW Audi Forum - The #1 Volkswagen (VW) Forum Dedicated to the whole Volkswagen (VW) Group

    VW Audi Forum - The #1 Volkswagen (VW) Forum Dedicated to the whole Volkswagen (VW) Group of vehicles including Volkswagen (VW), Audi, Seat, Skoda, Bentley, Bugatti, Lamborghini, Porsche Motor vehicles, Scania and MAN Truck & Bus and Ducati Motorcycles.

    Topics covered include Volkswagen (VW) Group news & reviews, owners gallery, advice and general information on everything related to the Volkswagen group of vehicles

    Including owners and enthusiats of Volkswagen (VW), Audi, Seat, Skoda, Bentley, Lamborghini, Porsche Motor vehicles, Scania and MAN Truck & Bus and Ducati Motorcycles.

     
  • Bentley’s new blower engines come to life in Crewe




    • First of the newly created engines for the Bentley Blower Continuation Series fires into action on Bentley’s testbeds
    • Newly-built engines exact recreations of the original 1928 supercharged 4½-litre design
    • First engine run on dedicated, specially prepared testbed at Crewe – originally used to run-in Merlin aircraft engines
    • Bentley engineers fine tuning the engine ahead of power runs

    The engine for the first car in Bentley Mulliner’s Blower Continuation Series has been fired up for the first time on a dedicated and specially-prepared testbed at Bentley’s Crewe factory.
    T
    he Blower Continuation Series is a run of 12 newly-built recreations of one of the most famous Bentleys of all time – the supercharged 4½-Litre ‘Blower’ created for racing by Sir Tim Birkin in the late 1920s. Forming the world’s first pre-war continuation series, these 12 cars have all been pre-sold to Bentley collectors and enthusiasts around the world.

    With the engineering prototype for the project – Car Zero – now in build, the first engine has been recreated by Bentley Mulliner with the expert support of specialists. While the engine was being built, a team of Bentley engineers began work to prepare one of the four engine development testbeds at Bentley’s Crewe headquarters to receive the engine. The engine test facility has been at Bentley since the factory was built in 1938, and the cells were originally used to run-in and power-test Merlin V12 aero engines produced by the factory for the Spitfire and Hurricane fighters of the Second World War.

    Preparing the test bed involved making a replica Blower front chassis to hold the engine, which could then be mounted to the computer-controlled engine dynamometer. A new software version to measure and control the engine was written and tested, allowing Bentley’s engineers to monitor and run the engine to precise parameters. As the Blower powertrain is considerably different in size and shape to Bentley’s modern production engines, a number of the original Merlin testbed fixtures – still in storage at Bentley - have been utilised to adapt the testbed to accommodate these special engines.

    With the engine fully installed, first fire-up took place two weeks ago, and the first engine is now proceeding through its defined schedule of run-in before a full power test. The engines will be tested across a 20-hour cycle, gradually increasing both engine speed and load conditions from idle up to 3,500 rpm. Once each engine is fully run-in, a full-load power curve will be measured.

    Once testbed running is complete, the next step for Car Zero’s engine will be real world durability. When the build of the car is complete it will start a programme of track testing – running for sessions of gradually increasing duration and speed, checking functionality and
    robustness under ever harder conditions. The test programme is designed to achieve the equivalent of 35,000 kilometres of real-world driving across 8,000 kilometres of track driving, and simulates the undertaking of famous rallies such as Peking to Paris and Mille Miglia.

    The Supercharged 4½-Litre Engine


    The newly created Blower engines are exact recreations of the engines that powered Tim Birkin’s four Team Blowers that raced in the late 1920s – including the use of magnesium for the crankcase.

    The Blower engine started life as the naturally aspirated 4½-litre engine, designed by WO Bentley himself. Like Bentley’s 3-litre before it, the 4½-litre brought together the latest individual engine technologies of the time – a single overhead camshaft, twin-spark ignition, four valves per cylinder and, of course, Bentley’s now legendary aluminium pistons. The racing version of WO’s 4½-litre engine developed approximately 130 bhp, but Bentley Boy Sir Tim Birkin wanted more. WO’s focus was always on reliability and refinement ahead of absolute power, so his solution to finding more power was always to increase engine capacity. Birkin had a different plan – he wanted to supercharge the 4½, an idea that WO thought ‘corrupted’ his design.

    With funding from his wealthy financier Dorothy Paget, and the technical skills of Clive Gallop, Birkin commissioned supercharger specialist Amherst Villiers to create a supercharger for the 4½. The Roots-type supercharger – colloquially known as a blower – was fitted ahead of the engine and radiator and driven directly from the crankshaft. Internal modifications to the engine included a new, stronger crankshaft, reinforced connecting rods, and a modified oil system.

    In racing tune, Birkin’s new supercharged 4½-litre engine was mighty – outputting around 240 bhp. The ‘Blower Bentleys’ were therefore extremely fast – but as WO predicted, also somewhat fragile. The Blowers played their part in Bentley history, including helping to secure victory for a naturally-aspirated Bentley Speed Six at Le Mans in 1930, but over the 12 races that the Blowers contested, a victory was never secured.
    This article was originally published in forum thread: Bentley’s new blower engines come to life in Crewe started by stuart View original post
  • PayPal Donation

    If you like this website, and would like to give something in return, you can make a donation. Your donation will be used to help pay for hosting service, and on improving the website and facilities for members. If you would like to make a donation, please enter your amount and follow the PayPal link.

     
  • VW Audi Forum Insurance


    If you need new insurance or your renewal is due, and you are looking for a good deal then please try the
    VW Audi Forum Insurance Scheme with Chris Knott Insurance

     
  • Amazon Credit

      
     
  • Recent Forum Posts

    wardienet

    Re: Oil Consumption?

    You’ll find on other posts that I had the coolant leak issue. £1200 sounded like a good deal for that but you’re not paying anyway rightly. On the oil,

    wardienet Yesterday, 11:06 PM Go to last post
    jonathanfenton

    Re: Rear caliper bracket problems!

    Innotec deblock oil is quite good. Also a really well fitting Allan key socket.

    jonathanfenton Yesterday, 09:26 PM Go to last post
    B7 man

    Soul Black Interior Trim.

    Hello.
    Ok, does anyone own an Audi A4 B6/B7 with the Soul Black (Gloss Black) dash board trim inserts and door inserts. If so, can you advise if

    B7 man Yesterday, 08:39 PM Go to last post
    ckq7

    Oil Consumption?

    I've had a 2015 4M Q7 for about 3 weeks now, I've done 1200 miles and have spotted a couple of problems. Its a full Audi Service History on 61k miles:

    ckq7 Yesterday, 08:19 PM Go to last post
    Christopher T

    Rear caliper bracket problems!

    I am having problems removing the 8mm allen bolts for the rear caliper brackets. I have tried wd40 with a lot of hammering. Dare not try a breaker bar

    Christopher T Yesterday, 06:52 PM Go to last post
    Christopher T

    Re: Why take off the 8mm hex bolts on rear brake disc change?

    I am having this problem at the moment. I have tried wd40 with a lot of hammering. Dare not try a breaker bar as at least one of the 8mm allen bolts looks

    Christopher T Yesterday, 06:43 PM Go to last post
    Donald Lute

    Re: More technology, less complexity – Audi boosts E-tron and E-tron Sportback ranges

    There's a game named slots where you can win money, but also lose. So if you don't want to lose money don't try or try one time. To try it out visit Auszahlungsquote:

    Donald Lute Yesterday, 06:26 PM Go to last post
    LUNA MINA

    Re: S6 first effort at cleaning

    OMGGGG !!! me too . i take my sisters children to the school they distroy every thing in my car . i always take it to the car wash

    LUNA MINA Yesterday, 05:45 PM Go to last post
    Geordiesteve_73

    Possible next car

    Hi guys,

    Just signed up so I can ask a few questions. If I'm in the wrong location just let me know.

    I've never owned a VW

    Geordiesteve_73 Yesterday, 05:42 PM Go to last post
    LUNA MINA

    Re: Hi everyone from Austin, TX

    hello ! am luna from algeria . driving VW passat

    LUNA MINA Yesterday, 05:36 PM Go to last post
    iwadee

    Re: CAN BUS - Battery Drain - HELP!!

    Hi VAG-Abound (and others!)

    Apologies for the delayed response. It's a BKD engine and it's a 4 door (2005, 2.0TDI).

    I've not

    iwadee Yesterday, 05:05 PM Go to last post
    pvarley

    Creaking/Knocking Sound

    My A4 has recently developed a creaking, almost knocking noise coming from the drivers side B-pillar area, towards the lower end (Seatbelt pillar) - More

    pvarley Yesterday, 04:49 PM Go to last post
    dan2485

    Re: DIY Brake Change Query

    Electro-Mechanical Parking Brakes (EPB): How to do rear brakes - YouTube

    dan2485 Yesterday, 04:03 PM Go to last post
    FrenchAudi

    Re: Another front end clunk/rattle post....

    The front brake diagrams and instructions in the Bentley manual for my car, which I assume has similar front brakes, say the following, which might be

    FrenchAudi Yesterday, 03:47 PM Go to last post
    swwalker

    Re: DIY Brake Change Query

    wasnt a french car by any chance was it?
    regardless there is no pushing back of calipers releasing the epb will do that - you do need to calibrate

    swwalker Yesterday, 02:51 PM Go to last post
     
  • Amazon - Prime

    >
     
  • Amazon Business

     
  • Amazon - Video

     
  • Amazon Search

     


 



  


Disclaimer: VW Audi Forum is an "independant enthusiast website", administered in line with guidelines supplied by VAG in the UK, and is in no way related to any of the Worldwide Volkswagen,Audi,Seat,Skoda,Bentley,Bugatti,Porsche or Lamborghini group of Companies. For official up to date information on any of there vehicles, please visit the official websites. Any comments made throughout this website, are the views of the respective poster, and in no way represent the views of the VW Audi Forum Administration, or the worldwide Volkswagen & Audi Group of companies.


VW Audi Forum do not vet and are not responsible for any information which is posted in this forum. All content is viewed and used by you at your own risk and we do not warrant the accuracy or reliability of any of the information.


Copyright: Certain "words", "phrases" and "Images" used on this website by the Administration are "Copyright" of Volkswagen GB, Volkswagen AG (Germany), Audi GB, Audi AG (Germany), Volkswagen Motorsport GB, Volkswagen Motorsport AG (Germany), Audi Motorsport AG (Germany), Volkswagen Racing GB, Bentley, Bugatti, Porsche and Lamborghini. No image can be replicated by anyone WITHOUT the relevant Companies written permission.


All trademarks and copyrights remain property of their respective owners.

No part of the VW Audi Forum website or forum may be reproduced without written permission from the site administration


PLEASE NOTE - PERSONAL ABUSE, ABUSE AGAINST THIS OR ANY OTHER WEBSITE OR ANY COMPANY WILL NOT BE TOLERATED. OFFENDERS WILL BE MODERATED OR EVEN BANNED.


This website and forum are best viewed at a minimum resolution of 1024 by 768.



  



- VW AUDI Forum - The #1 Volkswagen (VW) Group Forum - Volkswagen (VW) - Audi - Seat - Skoda - Bentley - Bugatti - Lamborghini - Porsche - Scania - MAN - Ducatti - VW Audi Forum -


- www.vwaudiforum.co.uk - www.vwaudiforum.co.uk -