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13 Extensively modified vehicles If a vehicle has been extensively modified or converted, certain defects, such as for components ‘missing where fitted as standard’ shouldn't be applied, for example: • a car converted for competition rally use must have the rear seats removed, be fitted with a roll cage and full harness seat belts, may not be fitted with components such as brake servo, power steering or airbags • a car converted to a stretch limousine may no longer be fitted with items such as curtain airbags or a functional electronic stability control system This exemption doesn’t apply to vehicles with minor modifications. Therefore, a car fitted with rally style seats, body kit and a sports steering wheel wouldn’t be exempt from the requirement to have a driver’s airbag if one was fitted as standard equipment. Vehicles modified for disabled use must be assessed on their merits. For example, it's acceptable for the driver’s airbag to be removed for a wheelchair user, but the SRS warning lamp mustn't indicate a system malfunction. mattersoftesting.blog.gov.uk/when-is-a-modified-vehicle-a-rally-car/Thanks, that is very useful. I will pop into my MOT station this morning and see what they have to say :-)
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Feb 21, 2019 10:03:18 GMT
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My P100 failed it's MOT when I built it because the Cossie drivers seat wouldn't go forwards n back. I had to change the runners to make it work.
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96 E320 W210 Wafter - on 18" split Mono's - Sold :-( 10 Kia Ceed Sportwagon - Our new daily 03 Import Forester STi - Sold 98 W140 CL500 AMG - Brutal weekend bruiser! Sold :-( 99 E240 S210 Barge - Now sold 02 Accord 2.0SE - wife's old daily - gone in PX 88 P100 2.9efi Custom - Sold
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Feb 21, 2019 10:41:16 GMT
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BIVA regs allow for a fixed seat so MOT regs (which are far more lax) should be ok too.
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Darkspeed
Club Retro Rides Member
Posts: 4,848
Club RR Member Number: 39
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Feb 21, 2019 11:21:58 GMT
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A lot of the MOT requirements are based around - if it is fitted then it has to work - so if your seat had an adjustment lever for fore aft then it has to be in working order and it would be a requirement to check its integrity by moving fore and aft and making sure it locked securely in the those positions. If it were jammed there is no certainty that it is locked and could in an accident just throw the occupant backwards or forwards.
There is no mandatory requirement for seats to be adjustable - from a man who's cars have fixed seats - or not even have seats at all just shaped scatter cushions !!
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Last Edit: Feb 21, 2019 11:23:10 GMT by Darkspeed
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Feb 21, 2019 11:45:45 GMT
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Yes, my seat had Sierra Cossie seat runners which in a P100, do not allow adjustment - I had to source a P100 runner set and swap it over before he would pass it.
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96 E320 W210 Wafter - on 18" split Mono's - Sold :-( 10 Kia Ceed Sportwagon - Our new daily 03 Import Forester STi - Sold 98 W140 CL500 AMG - Brutal weekend bruiser! Sold :-( 99 E240 S210 Barge - Now sold 02 Accord 2.0SE - wife's old daily - gone in PX 88 P100 2.9efi Custom - Sold
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Feb 21, 2019 12:25:51 GMT
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The exception clause is geared towards road legal competition cars. It specifically states that cars just fitted with aftermarket parts aren't classed as competition cars so have to conform to the main rules, ie seat has to move.
I would like to think that my car would be classed as extensively modified for competition :-)
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Feb 21, 2019 14:49:57 GMT
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Just back from a conversation with my MOT station's owner. No issues with a fixed seat, or unopening windows, so all's right with the world and crisis averted :-)
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scimjim
Club Retro Rides Member
Posts: 1,503
Club RR Member Number: 8
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Feb 21, 2019 19:49:35 GMT
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A lot of the MOT requirements are based around - if it is fitted then it has to work The test has changed substantially over the last decade or so, and this is no longer the case. Now, it must work if it’s a tested item and if a tested item was originally fitted, it must still be fitted and working. The classic was to remove the bald spare wheel because “if it’s fitted, then it’s tested” - now: “You only need to inspect the road wheels fitted to the vehicle at the time of the inspection. If you notice a defect on a spare wheel, you should tell the vehicle presenter about it.” Same with mandatory lights - for example reversing lights, they’re only an advisory if they don't work on a pre Sept 09 car.
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mk2cossie
Club Retro Rides Member
Posts: 3,036
Club RR Member Number: 77
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Feb 21, 2019 21:17:26 GMT
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A lot of the MOT requirements are based around - if it is fitted then it has to work - so if your seat had an adjustment lever for fore aft then it has to be in working order and it would be a requirement to check its integrity by moving fore and aft and making sure it locked securely in the those positions. If it were jammed there is no certainty that it is locked and could in an accident just throw the occupant backwards or forwards. There is no mandatory requirement for seats to be adjustable - from a man who's cars have fixed seats - or not even have seats at all just shaped scatter cushions !! Pretty much exactly what I would say (as an actual MOT tester!) If there are no runners to test, they can't be failed
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Feb 21, 2019 21:34:33 GMT
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Right, moving on from the seats :-)......... Started on the dash top removable panel, as the piece cut out will be slightly too small. Laid up the cover out of 2 layers of 360gm/m2 prepreg, as is the support ring. This is now cooking. The oven used to get up to 120 deg C quite easily, however the internal silver reflective sheeting has shrunk so is not so effective. I will be leaving the oven on over night so, hopefully it will reach 90 deg C which is enough to cure the carbon. We shall see tomorrow morning.
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Feb 22, 2019 20:29:42 GMT
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A little light nighttime reading. I have a fair few books on aerodynamics but they tend to concentrate on single seaters, which means that a lot of the stuff (underfloor aero for example) is not too relevant to my project. This one looks like it may be more useful, just a shame about the car on the cover :-)
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Feb 22, 2019 20:39:13 GMT
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New dash top cover came out OK. On looking at how to fit it I realised that it is less than half the thickness of the original (saving 1/4Kg). I planned to sit the cover flush with the rest of the top using the trim piece I made at the same time, but then the lightbulb moment occurred. Why not sand the existing section and sit the new piece into it, dispensing with 100gms of trim and glue? :-) The recess is a little tatty at the moment but it works. A few hours of sanding and filling and it should look OK. I still need to settle on a securing method.
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Feb 23, 2019 12:51:46 GMT
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Testing the heavy duty double sided tape used to secure the rare earth magnets to the glove box cover.
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Feb 23, 2019 17:14:46 GMT
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Hi Re the dash top cover - won't the front be just about held in place by the windscreen, or a small lip in places there, so it will only need fixing at the dashboard edge?
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Feb 23, 2019 17:19:52 GMT
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Hi Re the dash top cover - won't the front be just about held in place by the windscreen, or a small lip in places there, so it will only need fixing at the dashboard edge? There is 30mm left of the original top which the new section clips on to. This is now secured by 4 clips that slide under the original section. The front, hopefully will be held in place with magnets. However, the glue securing these is in the process of curing so I won't know if this will work until tomorrow.
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Feb 23, 2019 18:55:04 GMT
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Playing around with the air curtain concept. Initial thought was to extent the curtain up to the bumper but this hid the indicator so a no go.
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Last Edit: Feb 23, 2019 18:58:47 GMT by nalesutol
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tristanh
Part of things
Routinely bewildered
Posts: 990
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Feb 23, 2019 23:10:55 GMT
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Is the book any good?
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Whether you believe you can, or you cannot, you're probably right.
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I think so. Lots of practical examples and experiments and few equations. However, I have read quite a few books on the subject so a lot of the stuff I already knew but there is stuff that is new to me. Book would make a good starting point for people new to the subject as it is based on cars we drive rather then exotic race cars.
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Last Edit: Feb 24, 2019 0:13:07 GMT by nalesutol
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tristanh
Part of things
Routinely bewildered
Posts: 990
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Thanks, I must look it up, I plan on turning my mk2 Golf into a more track focused machine.
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Whether you believe you can, or you cannot, you're probably right.
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It will be a good start as it works with existing cars that we may own, with the attendant restrictions and compromises, rather then ideal solutions for race cars requiring extensive body mods and redesigns. It also has a few how too projects.
I also have Competition Car Aerodynamics by Simon McBeath. This is an excellent book, but it does also deal with single seaters and goes into more technical detail.
Race Car aerodynamics - Designing for Speed by Joseph Katz is a lot more technical, but referenced in both the above books.
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