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Bore spacing on TWINK

 
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beast02



Joined: 15 Jul 2007
Posts: 62
Location: Snohomish

PostPosted: Wed Feb 11, 2009 10:00 am    Post subject: Bore spacing on TWINK Reply with quote

I am working on making an inlet airbox for the TWIN cam Lotus engine and need to know the bore spacing, primarily the spacing between the two center cylinders.

Thanks,

Bryan
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RS.Escort



Joined: 23 Sep 2008
Posts: 74
Location: Vancouver Canada

PostPosted: Wed Feb 25, 2009 10:52 pm    Post subject: Reply with quote

And you know I had to remove said air box assy to measure properly..

The bore spacing is exactly 4 inches between the two inside bores of the front and rear carbs..

The two inner most upper studs that the air box bolts to are 2.9 inches apart..

Than should give you a good start.. If you're working with fiberglass, you can always trim a bit if you are slightly off..

Have fun! Oh, if you don't want to fuss with all that, a friend of mine makes a nice repo air box for the Lotus Elan, two piece, but all glass. It doesn't have the throttle cable attachment built in, but that can be added.. It has the correct length, height and angle of the nose for the air ducting.

I think they are around $100.00, but don't quote me..

His name is Gerry, and he lives close to Tacoma Washington.

He makes all kinds of fiberglass parts for the Elan, so give him a shout if you need something..

Gerry Foley
E-mail Address(es):
gfoley@kendra.com

Bye for now
Mark


_________________
1962 Lotus 7
Escort MK1 RS 2000 Pinto power
66 Cortina estate Miata power
06 GTO
01 Audi TT
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beast02



Joined: 15 Jul 2007
Posts: 62
Location: Snohomish

PostPosted: Fri Feb 27, 2009 9:18 am    Post subject: Reply with quote

Well this is actually an airbox i've designed. It was originally designed for a BMW 2002, but i'm going to take my CNC machined plugs and adjust the spacing so I can possibly produce airbox's for Lotus twin cam engines (or others if there is enough interest (the molds alone take me about 2 months to make).

I am close to finishing up my first article, am learning some things.
Check out my project post over at the BMW 2002 forums:

http://www.bmw2002faq.com/component/option,com_forum/Itemid,57/page,viewtopic/p,585165/#585165
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