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26 Sep 2019, 19:38 (Ref:3930265) | #376 | ||
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Not wishing to derail this thread, but an example (today at Spa) of Duddha’s lighting comments....
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Logic will get you from A to B. Imagination will take you everywhere. (Einstein) |
27 Sep 2019, 04:11 (Ref:3930314) | #377 | ||
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As most of the GT40’s are copies and all sorts of things are tried to ensure they go quicker lights are the least of the changes.
Best lighting was the fancy stuff from the red bull road car fixed to a Bugatti 35 in last years LMC. |
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john ruston |
27 Sep 2019, 05:51 (Ref:3930320) | #378 | ||
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Mike I see better what you mean… Its so good when you shed light on the subject…
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Celui qui est parti de rien pour arriver nulle part,n'a de merci a dire a personne.Pour ceux qui vont chercher midi a quatorze heures, la minute de Vérité risque de se faire attendre longtemps. |
1 Oct 2019, 18:42 (Ref:3931346) | #379 | |
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What is allowed with regards to engine blocks and HTPs? Despite having been involved in historic motorsport for 25 years I've been banging my head against a brick wall for weeks trying to find an answer to this question.
Can I use a later engine block that has a different casting number if it is the same in terms of spec, material, dimensions and manufacturer as that originally fitted? |
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4 Oct 2019, 03:09 (Ref:3931836) | #380 | |||
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Quote:
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Living the dream,Chief instruktor and racing on the worlds best circuits-The Nordschleife and Spa.Getting to drive the worlds best cars-someone has to do it, so glad its me. |
4 Oct 2019, 06:57 (Ref:3931853) | #381 | |
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That’s what I always thought, but every C3 Corvette I’ve looked at has a non period block, the big block McLaren I looked at didn’t even have a block from the original manufacturer let alone a period one and there’s loads of Jags with non period iron blocks same can be said for BMWs and Chevrons.
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4 Oct 2019, 14:40 (Ref:3931911) | #382 | |||
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Quote:
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4 Oct 2019, 15:31 (Ref:3931919) | #383 | ||
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Am I right in thinking that there are the odd engine types that AppK allows an alternative block to be used? 1275cc 'A' Series, BDA and FVC spring to mind without checking......
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Logic will get you from A to B. Imagination will take you everywhere. (Einstein) |
4 Oct 2019, 16:55 (Ref:3931936) | #384 | ||
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You can use the 1300GT a-aeries block instead of a Cooper S block and there's some Abarth engines that you can interchange. App K specifically quotes these but the blocks referred to are actually significantly different to the correct period items.
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4 Oct 2019, 18:45 (Ref:3931957) | #385 | ||
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a salary slave no more... |
5 Oct 2019, 12:26 (Ref:3932067) | #386 | |
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8 Oct 2019, 08:39 (Ref:3932635) | #387 | ||
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8 Oct 2019, 09:17 (Ref:3932649) | #388 | |
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8 Oct 2019, 12:00 (Ref:3932684) | #389 | |||
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Basically there are countless numbers as there were truck, standard or even marine applications in some cases. 3782870 for an iron 4-bolt tall deck and 4.250 bored block I believe produced from 1968 to 1976 and 3946052 for a 427, 4.250 ZL-1 MkIV 1969 period block. There are online database as well as books which are just about GM casting numbers and which most builders and/or specialist often refer to when submitting applications, or simply providing a copy of the record. |
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8 Oct 2019, 14:28 (Ref:3932717) | #390 | |
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Thanks, there was only one casting number used for the 69 to 70 iron block 427cu and 454cu Corvette and that was 3963512, these are difficult to get hold of especially this side of the Atlantic.
The tall deck blocks are only for trucks as they have a lower compression ratio. So I could use a later block with a different casting number but I don't know of anyway to prove that these are exactly the same. If the FIA doesn't have a list I can't find a way to do this without building a car and applying for an HTP which could be pointless. I've had my current historic race car for 25 years and it's becoming less and less fun, it just seems that nowadays there is a requirement to be stupidly rich so you can pay your specialist who knows someone and then you're able to run your McLaren with a modern Dart block or your Mini with a dog box. Sorry for the rant but I've spent months chasing engine builders, not for advice, but to build me an engine but no one ever gets back to me, even after going to see them and I've just about given up on the idea. Same with other bits of Corvette. I've never come across a marque of car where the specialist are almost to a man completely unhelpful. I just don't get how people can turn down 10, 15 or 20 grands worth of work. Guess I should have got a Ford. |
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8 Oct 2019, 16:28 (Ref:3932741) | #391 | |||
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Thanks |
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9 Oct 2019, 09:11 (Ref:3932879) | #392 | ||
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Nope, the engine block has to be period unless you prove that as an alternative it's in accordance with 3.6.7.1 which means dimensionally and structurally equal to the period one.
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9 Oct 2019, 09:13 (Ref:3932880) | #393 | |||
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The fact that an engine block is hard to find has never given a way around, which is different to total and proven non-availability. |
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9 Oct 2019, 10:40 (Ref:3932890) | #394 | ||
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I only signed up here as a last resort and was not just looking for an easy way out. Thanks for your replies. I will endeavour to source a period block, which I've also been trying to do all this time. |
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16 Nov 2019, 09:30 (Ref:3940894) | #395 | |
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lotus elans are easy. . . . everythings available new . . . looks like original but just a bit better on the inside.
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18 Nov 2019, 11:07 (Ref:3941370) | #396 | |||
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In which case would it not be possible for the FIA to compile a list of original parts that are considered to be suitable - e.g. when an alternative casting number block is accepted for one car then it is added to the list? I'm intrigued by how the process works/what research the FIA do, having been asked to prove the period use of rose joints on a car when there are other examples that already had FIA papers. |
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"The problem with internet quotes is that you can't always depend on their accuracy" - Abraham Lincoln, 1864 |
18 Nov 2019, 11:16 (Ref:3941372) | #397 | |||
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For GM castings, you have to understand they are the same but other applications and from same period. Basically another plant, marine, etc. People have tried for Alfa and other cars but couldn't demonstrate unavailability. |
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14 Feb 2020, 10:22 (Ref:3957576) | #398 | ||
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A big update on HTP and for everybody to be aware.
A new template was released last week to all national clubs and followed by an FIA Seminar held in Paris on the Friday of Retromobile for ASN staff but also registrars and so on. In total, we had over 70 people attending and 23 different nationalities which was a very good point. All in all, the document will be implemented in the first half of 2020 and be mandatory to use from July onwards. Also developped aside are the new HTP Guidelines which we invite anyone interested to complete an Application or to understand the template to go through. Here is the link Any question, please let me know. Nothing really changes, just a more user friendly document, new picture format and specific requirements aimed at saving time in the application procedure. |
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14 Feb 2020, 16:19 (Ref:3957622) | #399 | |
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Ok thanks for this. Got to keep regulations up to date. Looks like it’s been a very productive meeting and it’s right to give time so everyone can get ready when they can.
So which type of historics will be most affected by this? Hope you guys keep up the good work |
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14 Feb 2020, 16:44 (Ref:3957625) | #400 | |
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Well done Louis - greatly appreciate the increased communication and openness. Robert Barrie
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