Heeeeelp !

Anonymous — Wed, 10 Aug 2016 00:30:06 GMT

shared link is at

Racing manifold and exhaust system for a new Ford motor (originally cross mount) into and old Ford (LOL, the forum won't let me say this) E s c o r t - sorry, don't know the names of these cars in US, these are the UK / Austrialasian names.

I have learned a lot doing this and really begining to like Fusion360, albeit different to what I am used to. Cheers Autodesk. It can do tube like this better than any other CAD I have tried - the joint function is very good for this type of work.

There are four cylinders to this engine. I can get everything to line up except for cylinder 4 which has an angular error (normally 8.4deg but I have seen it at 7.3deg) and I just cannot find what is causing this. All the bends are linked items - that is they are pre-made by an auto manufacturer using machines to quite exacting specifications. My poor old mate who has to cut and weld all these bends together has a real job in front of him so I am trying very hard to keep the angles in multiples of 15deg - nominally 45's 90's or 60/30's so he can jig something up to touch weld them together.

The basic shape of the cylinders as you see will remain, I just need now to tweek the total overall centre line radius/bridge lengths to get them to (I hope) within 50mm of each other. I thought initially that cylinder 2 would be the hardest however it turns out that cylinder 4 is going to be the one to dictate the achievable length and that is the very one I am having issue with.

Please, can somebody play with cylinder 4 and try to find out why I have an angular error between the last face of the last logical bend and first face of the 30deg/30deg offset bend going into the collector - see picture below. It has to be something really simple but for the life of figure out what it is...

Re: Heeeeelp !

Beyondforce — Wed, 10 Aug 2016 08:24:46 GMT

Hi @Anonymous,

Could you please attach the file inside this post. I'm having some problem downloading it.

Ben.

Re: Heeeeelp !

Anonymous — Wed, 10 Aug 2016 22:15:41 GMT

True, I could not download it either. Not sure what happend there.

Anyway Ben, thanks for the reply. I found it. It was my own stupid fault and after a good nights sleep it only took a few moments to click onto what I had done some time back and had forgotten about it.

Cheers,
David

Re: Heeeeelp !

Beyondforce — Thu, 11 Aug 2016 02:05:44 GMT

Hi David,

Just wish I could help more! 🙂

Ben.

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