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Author: Subject: Not quite a 'book' chassis any more...
wildchild

posted on 29/5/06 at 04:51 PM Reply With Quote
Not quite a 'book' chassis any more...

Just about got round to uploading photos from a week or two ago. The whole lot are at:

http://www.flickr.com/photos/diy_deviant/tags/projectseven/



Basically I spent the weekend shortening the passenger footwell to create a bit more space for the (ZZR1100) engine.

A couple of hours in I was seriously starting to regret having already welded the floor in (several years ago when it was going to be x-flow powered) but then my dad came to the rescue with a stack of thin cutting discs he'd accidentally bought thinking they were a couple of thick ones!

I'm pretty happy with the result, as I can now sit the engine properly north south in the chassis (better for the prop) without having the front of the cylinder head over the left hand chassis rail or having the output shaft too far to the right. Here's a pic:



Must go and buy some more tube so I can get on with the engine mounts... and the suspension...and everything else!

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mark chandler

posted on 29/5/06 at 07:04 PM Reply With Quote
Good move, get it back as far as you can !

I'd be inclined to pull it over more to the passenger side, grow the drivers footwell width and straighten the prop even more.

Regards Mark.

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wildchild

posted on 29/5/06 at 08:10 PM Reply With Quote
as it is, it's pretty tight up against the left hand chassis rail at the front, so it's as far as it can go with the engine pointing due north-south.

It's also as far back as it can go without making a huge leap and sticking it alongside the drivers feet, but I think this would leave the passenger footwell seriously short (knees jammed in the dashboard type of thing)





http://www.wildchild.org.uk
Build photos on Flickr

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kb58

posted on 30/5/06 at 01:27 AM Reply With Quote
Alright, I'll ask the dumb question, you do still have leg room, right? Getting the engine in the right spot means little if you can't fit the pedals in.





Mid-engine Locost - http://www.midlana.com
And the book - http://www.lulu.com/shop/kurt-bilinski/midlana/paperback/product-21330662.html
Kimini - a tube-frame, carbon shell, Honda Prelude VTEC mid-engine Mini: http://www.kimini.com
And its book - http://www.lulu.com/shop/kurt-bilinski/kimini-how-to-design-and-build-a-mid-engine-sports-car-from-scratch/paperback/product-4858803.html

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locostv8

posted on 30/5/06 at 03:27 AM Reply With Quote
Given the location prolly RHD.





http://wrangler.rutgers.edu/gallery2/v/7slotgrille/hssss/

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JoelP

posted on 30/5/06 at 06:24 AM Reply With Quote
ive been doing this very operation to a bookish chassis recently, but i took the engine bay all the way back into the passanger footwell. Passanger just has his knees up to his chin. Means i can also shorten the front end and put a lot of triangulation in.
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procomp

posted on 30/5/06 at 07:27 AM Reply With Quote
Hi depending on the weight of the engine you dont want to move it to far backwards as you will have verry litle weight over the front wheels . If this is the case you might want to consider upping the castor to about 8deg to compensate for the lack of feel from the steering.

cheers matt

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wildchild

posted on 31/5/06 at 11:50 AM Reply With Quote
Yeah it's RHD, so I've only shortened the passenger footwell.

Edit: Location changed to avoid future confusion!
<---------

Length is enough on the passenger side for me (6'4" to sit comfortably without lifting my knees too high up. I could probably have gone shorter and assumed all my passengers would be shorter than me!

I've only moved the engine about 6" so I don't think it should make the front too light. Ive got plenty of space in the nose now so I could always stick the battery/etc up there to tune the weight distribution at a later date.

Cheers for all the comments.

[Edited on 31/5/06 by wildchild]





http://www.wildchild.org.uk
Build photos on Flickr

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