Paul TigerB6
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| posted on 11/3/07 at 04:26 PM |
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05 R1 engine position
Hi guys,
Looking for help positioning my engine in preparation for fitting the exhaust. My Tiger chassis has a substantial bracing tube right in where i recon
the exhaust wants to go at present - 5 inches from no.4 cylinder. Probably going to go for an MK exhaust manifold.
At the moment the engine is about as far back as it will realistically go (about 1 inch from the end of the footwell). The engine is dead straight in
the car with minimal angles on the prop. Front corner of the engine is directly above the inside line of the chassis so really is as far back and
offset as far as possible. Pics are in my archive currently showing the current position.
Should I be looking to move the engine forward and inboard at all?? Also should i keep it straight and try and keep that near perfect prop line??
Cheers
Paul
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Coose
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| posted on 11/3/07 at 06:17 PM |
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If you have the space you can happily move it forward - most front-engined BECs end up with a rearward weight bias so any weight further forward
isn't a bad thing.
Try to keep both prop flanges parallel but not in line - you need a small amount of deflection in the prop to stop flats being worn in the UJ
bearings.
Spin 'er off Well...
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Paul TigerB6
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| posted on 11/3/07 at 06:47 PM |
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Well i didnt know that about UJ's so thanks for that.
Tiger helpfully put a lower bracing bar right across the chassis in the engine bay. The sump is right behind this at present so looks like Mr Angle
Grinder will have to do his stuff on the chassis and put a new brace in afterwards.
Very temped to redesign the engine mounts actually and make a cradle to suspend the engine from. Does anyone have any pictures of their engine mounts
at all??
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mark chandler
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| posted on 11/3/07 at 06:59 PM |
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You would be better off having the engine following the line of the body, not the centre line of the car, moves the prop over but as you are buying a
built exhaust I would bolt that on before welding anything up and use that to position the engine.
As you are cutting out a diagonal brace, simply replace with a Y brace.
Regards Mark
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Paul TigerB6
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| posted on 11/3/07 at 09:43 PM |
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Looks like I'll definately be best getting the exhaust sourced and chopping the chassis to suit. Looks like its going to need re-powder coating
anyway so will just do whatever is required by way of chassis changes. The powder coating has loads of marks on it anyway where its been knocked about
in its 4 1/2 years of not being a car
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