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 Post subject: Re: locost vs Chaterham
PostPosted: October 14, 2015, 8:55 am 
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Joined: March 15, 2013, 2:27 pm
Posts: 94
Location: Montreal, Quebec Canada
i had never realised that the rear of the car is sloped on a caterham! it does make a difference!

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 Post subject: Re: locost vs Chaterham
PostPosted: October 14, 2015, 9:37 am 
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Joined: July 7, 2011, 12:17 am
Posts: 541
Location: Oregon City, OR
bobbeysr27 wrote:
i had never realised that the rear of the car is sloped on a caterham! it does make a difference!


This picture shows it better. It's actually got a slight radius...

Image

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 Post subject: Re: locost vs Chaterham
PostPosted: October 14, 2015, 1:58 pm 
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Joined: March 15, 2013, 2:27 pm
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Location: Montreal, Quebec Canada
just found out that my deman also has it! :cheers: :lol: thank you for making my car more pretty!

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 Post subject: Re: locost vs Chaterham
PostPosted: November 10, 2015, 4:01 am 
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Joined: March 30, 2011, 7:18 am
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Location: central Arkansas
The non-concentric rear fenders provide a little extra room to run the wiring to the taillights, and for the fasteners holding the taillights to the fenders.


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 Post subject: Re: locost vs Chaterham
PostPosted: November 10, 2015, 10:36 pm 
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Joined: August 29, 2010, 11:43 pm
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Location: East st Paul, Mb
RTz wrote:
I’ll echo what everyone else has said and add a couple more items that commonly get omitted…

Image

:agree: , and boxes checked 8) .
Cockpit tube sloped downward to fender
Radius follows rear fender line.
Top of 'boot' flows from radius above, and is sloped.
Did my best to make Jack's steamrollers Caterhamesque. :thmbsup:
Attachment:
100_7866.JPG


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Build log http://www.locostusa.com/forums/viewtopic.php?f=35&t=12374
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 Post subject: Re: locost vs Chaterham
PostPosted: November 11, 2015, 4:42 am 
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Joined: May 27, 2006, 9:46 pm
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Location: BC, Canada. eh?
Well, my roll bar is vertical & my rear fenders are concentric, but other than that I've got 'me all covered...5 out of 7, not bad!

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 Post subject: Re: locost vs Chaterham
PostPosted: November 11, 2015, 9:44 am 
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Joined: March 30, 2011, 7:18 am
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Location: central Arkansas
Over in another thread, Locost_John put up some pictures showing how he made bucks and laid up his own fiberglass fenders. He made the curve at the outside slightly smaller than the curve against the body, which matched some of the early Lotus fenders. I thought it looked quite spiffy.

Unless it's an optical delusion, it looks like the Caterham fenders are "square", but ever-so-slightly cocked as they mount to the body, so the outside edges are a tiny bit higher than the insides.


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 Post subject: Re: locost vs Chaterham
PostPosted: November 11, 2015, 4:43 pm 
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Joined: July 4, 2006, 5:40 pm
Posts: 1994
Location: Novato, CA
The one other really noticeable thing is the windshield frame. On virtually every seven kit, the frame has a nice bow on top. Ours are flat, straight across. The bow looks a lot better.


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 Post subject: Re: locost vs Chaterham
PostPosted: November 12, 2015, 10:31 am 
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Joined: October 24, 2008, 2:13 pm
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Location: Carlsbad, California, USA
nick47 wrote:
The one other really noticeable thing is the windshield frame. On virtually every seven kit, the frame has a nice bow on top. Ours are flat, straight across. The bow looks a lot better.


Photo(s), Nick? I'm assuming the bow is upward as a "dip" wouldn't be mechanically practical. Likewise, a slight inward "lean" of the glass looks better too, IMHO. Most of the Locosts appear to be straight to me.

Cheers,

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Damn! That front slip angle is way too large and the Ackerman is just a muddle.

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 Post subject: Re: locost vs Chaterham
PostPosted: November 12, 2015, 4:44 pm 
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Joined: July 4, 2006, 5:40 pm
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Location: Novato, CA
You can see it in my photo on page 1. It's not much of a curve, but compared to the Caterham and Birkin, the top of my windshield almost looks like it has a dip.


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 Post subject: Re: locost vs Chaterham
PostPosted: November 17, 2015, 12:55 am 
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Location: central Arkansas
This is an S2(?) Lotus. Note the flat rear deck, slightly curved underdeck, and concentric fenders.

Hmm. The evolution from that to the Caterham is subtle, but I think the Caterham looks slightly better, though I can't say why... and the asymmetrical fenders on the Caterham bug me if I look at them. But if I look at the car as a whole they work fine. Weird.

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lotus 7 and 23 side view.gif


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 Post subject: Re: locost vs Chaterham
PostPosted: November 23, 2015, 1:37 pm 
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Joined: January 27, 2010, 1:11 pm
Posts: 540
Location: Jefferson City, MO
Does anyone know what angle caterham uses on their rear panel? I am working on mine now and have the top rear tube in place but not sure on the lower. I don't want it vertical but not sure how much further to extend the lower tube from the frame than the upper tube. I have the upper tube angled down about 8° and the lower tube angled up 33°.

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 Post subject: Re: locost vs Chaterham
PostPosted: November 23, 2015, 2:38 pm 
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Joined: January 1, 2012, 12:44 pm
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Location: Boise, Idaho
Chris,
Based on my '81 Cat, the top bar doesn't have an "angle" due to the curvature, but, there's a 1.3" drop over the 17" run. The bottom bar is curved through most of the upturn and only the last few inches have a 30* slope. The bottom of the bar is 4" above the plane of the bottom of the chassis.

Ron


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 Post subject: Re: locost vs Chaterham
PostPosted: November 24, 2015, 11:16 am 
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Joined: January 27, 2010, 1:11 pm
Posts: 540
Location: Jefferson City, MO
seven13bt wrote:
Chris,
Based on my '81 Cat, the top bar doesn't have an "angle" due to the curvature, but, there's a 1.3" drop over the 17" run. The bottom bar is curved through most of the upturn and only the last few inches have a 30* slope. The bottom of the bar is 4" above the plane of the bottom of the chassis.

Ron


Thanks that helps, but not quite what I was looking for. This is the angle I was looking for. In digging through some of my drawings, I found one drawing of a S2 frame that has the angle at 10.3°.

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Rear panel angle.jpg


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Build: NA Miata based +221 Se7en


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 Post subject: Re: locost vs Chaterham
PostPosted: November 24, 2015, 12:06 pm 
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Joined: January 1, 2012, 12:44 pm
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Location: Boise, Idaho
Sorry. Yes, 10.5* is what my chassis measures for that panel.

Ron


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