This site describes the construction of a home built, mid-engined car. First conceived in 1999 and inspired by cars such as the NCF Blitz and Onyx Tomcat. I finally began work this year(2005) with a friend, who is an Aircraft Engineer. Why Mistrale? Well, the author of 'A Year in Provence', described the Mistral as a "brutal, exhausting wind that can blow the ears off a donkey" - appropriate for a car with no roof, sides or windscreen. An 'e' was added as others have already used 'Mistral'
Sunday, April 18, 2010
Bulkhead
The last month has seen lots of small steps towards completion of the front bulkhead. As usual, I started with a cardboard template - the bulkhead has to allow the steering column, clutch and brake master cylinder through it. I had a small panic when reading the latest IVA rules which stated that the fuel tank should be separated from the passenger compartment by a bulkhead which should not have any holes in it. This is difficult as there must be some sort of hole to allow the fuel pipes out! I phoned VOSA and spoke to a very helpful expert who said that what the rule wanted was to ensure that the fuel had a path of escape that would not cause it to flow into the cabin. Sorted!!! Anyway, the cardboard template wasn't a good as usual as the first attempt at making it out of steel wasn't very good! The bulkhead had to have a recess to allow the clutch pedal full travel, whilst also leaving room for brake and clutch pipes behind it. I went through lots of variations before I settled on the final, and simplest design. The recess for the clutch was made by cutting a piece of 50x50 box (and hitting it with a hammer) and welding it onto the sheet. The sheet was then trimmed to fit, re-trimmed, trimmed a bit more until it finally slotted in nicely. To finish off, I gave it a quick coat of weld-through primer so that it will stay in good condition! Next, I have to make a removable bulkhead for the passenger side that will allow removal of the fuel tank should it be necessary.
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