CF Mohawk Scoop without roof panels - LotusTalk - The Lotus Cars Community
 20Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 73 (permalink) Old 07-22-2018, 06:38 AM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
CF Mohawk Scoop without roof panels

I'm having my friend make a CF Mohawk Scoop without roof panels for my personal use.

He'll be pulling and making molds so multiple units can be made, let me know if anyone is interested in having one.

Below is a photo to show what this may look like, the Mohawk scoop will be without the extra bit of CF shown on this Reverie CF scoop.

The Mustang is one of his past projects, he can make front and rear clams if anyone is interested.
Attached Images
       
REKIII likes this.
senna's daddy is offline  
Sponsored Links
Advertisement
 
post #2 of 73 (permalink) Old 07-22-2018, 02:07 PM
Registered User
 
DannyGT's Avatar
 
Join Date: Jul 2018
Posts: 67
interesting, and interested
DannyGT is offline  
post #3 of 73 (permalink) Old 07-22-2018, 03:56 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Quote:
Originally Posted by DannyGT View Post
interesting, and interested
Hi Danny, thanks for your interest; please PM your contact information.

The initial design is to make the Mohawk scoop only (finish line at the yellow triangles).

At the windshield, the CF will cover the unsightly rubber weather stripping atop, and wrap around downward with a 90-degree vertical portion and a nice radius to give the front support additional stiffness and look like a factory design and not a garage made afterthought.

The anchor point at the windshield will use the same round indent for the hard top pin (yellow arrow) because I don't want any holes drilled or the OEM parts modified.

On the B pillar/rollbar, a similar detail with a 90-degree radius will cover the weather strip atop, and the vertical flat portion will follow the contour of the bottom of the rollbar, the only fasteners (2 - one on each side) will use the same tapped holes (yellow arrow) for securing the hardtop hold down plastic part (removed when this H top is in place).

Of course, an obvious addition maybe a pair of movable hinged roof panels (similar to the "Gullwing" roof for the Elise) that will be removable; however, I may have the movable roof panels hinged at the leading windshield edge as to use the airflow to keep the "door panel" in the closed position while the car is in motion - and use magnetic strips at the trailing edge (B pillar) for the "latch".

As you can see this is a working design development process; thing will change as the design process progress - see picture below for clarification.
Attached Images
 

Last edited by senna's daddy; 07-22-2018 at 04:36 PM.
senna's daddy is offline  
 
post #4 of 73 (permalink) Old 07-22-2018, 04:38 PM
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,931
I really need a single skin full mohawk and rear hatch if your friend wants to get into that, optimized to light weight and cheap not pretty.

2007 Exige S with almost every track mod...
kfennell is offline  
post #5 of 73 (permalink) Old 07-22-2018, 04:43 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Quote:
Originally Posted by kfennell View Post
I really need a single skin full mohawk and rear hatch if your friend wants to get into that, optimized to light weight and cheap not pretty.
K:

I'll check with him after he pulls the mold; alternately, I can sell you the Reverie CF scoop shown if that will work for you, it feels as light as a piece of paper.

Last edited by senna's daddy; 07-22-2018 at 05:24 PM.
senna's daddy is offline  
post #6 of 73 (permalink) Old 07-22-2018, 05:26 PM
Registered User
 
Join Date: Nov 2015
Location: massachusetts
Posts: 1,973
yeah, thought it would be a fun project, not CF but thought the Exige looked neekid without the scoop

The mounting hardware is the interesting bit. Molding a scoop is easy, well relatively

Have to machine the center clamp I have drawn up to also hold my rear view monitor
Attached Images
 
senna's daddy likes this.
exigegus is offline  
post #7 of 73 (permalink) Old 07-22-2018, 05:36 PM
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,931
Quote:
Originally Posted by senna's daddy View Post
K:

I'll check with him after he pulls the mold; alternately, I can sell you the Reverie CF scoop shown if that will work for you, it feels as light as a piece of paper.
The problem with that is I need the rest of the roof in a motorsports version, I don't even really need the extra air flow. Roof weighs like 27 odd lbs and a single skin would be closer to 10 with the scoop, and taking weight off the roof is obviously desireable if you need to lose weight anyways which I do!

2007 Exige S with almost every track mod...
kfennell is offline  
post #8 of 73 (permalink) Old 07-22-2018, 05:45 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Quote:
Originally Posted by kfennell View Post
The problem with that is I need the rest of the roof in a motorsports version, I don't even really need the extra air flow. Roof weighs like 27 odd lbs and a single skin would be closer to 10 with the scoop, and taking weight off the roof is obviously desireable if you need to lose weight anyways which I do!
I'll check for you, do you need to use the stock roof hold down hardware?
senna's daddy is offline  
post #9 of 73 (permalink) Old 07-22-2018, 05:51 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Quote:
Originally Posted by exigegus View Post
yeah, thought it would be a fun project, not CF but thought the Exige looked neekid without the scoop

The mounting hardware is the interesting bit. Molding a scoop is easy, well relatively

Have to machine the center clamp I have drawn up to also hold my rear view monitor

I agree, topless and scoopless is not a good look for the Exige; and I won't use any female analogies in today's PC climate.

Originally, my idea was to use two bent Ti rod molded into the CF and use the front and rear OEM roof hold down assemblies.

Brilliant mind x 2?

BTW, nice color.

Last edited by senna's daddy; 07-22-2018 at 05:57 PM.
senna's daddy is offline  
post #10 of 73 (permalink) Old 07-22-2018, 05:53 PM
Registered User
 
Join Date: Nov 2015
Location: massachusetts
Posts: 1,973
The other fun thing is it will fit in the trunk, so you can carry the soft top and swap if you run into weather

Ardent red

I had to do body work on the full mohawk I bought, so figured I would fool around and practice painting
exigegus is offline  
post #11 of 73 (permalink) Old 07-22-2018, 06:16 PM
Registered User
 
kfennell's Avatar
 
Join Date: Jun 2015
Posts: 1,931
Quote:
Originally Posted by senna's daddy View Post
I'll check for you, do you need to use the stock roof hold down hardware?
I don't have a cage, so it does need to have some provision for stock hold down, or I guess nothing at all and I can fabricate it.

2007 Exige S with almost every track mod...
kfennell is offline  
post #12 of 73 (permalink) Old 07-22-2018, 06:23 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Quote:
Originally Posted by exigegus View Post
The other fun thing is it will fit in the trunk, so you can carry the soft top and swap if you run into weather

Ardent red

I had to do body work on the full mohawk I bought, so figured I would fool around and practice painting
It's the color of my S260.

A canvas Mohawk on the soft top would be a real DIY project.
senna's daddy is offline  
post #13 of 73 (permalink) Old 07-22-2018, 06:25 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Quote:
Originally Posted by kfennell View Post
I don't have a cage, so it does need to have some provision for stock hold down, or I guess nothing at all and I can fabricate it.
I'll check for you K.
senna's daddy is offline  
post #14 of 73 (permalink) Old 07-23-2018, 03:53 AM
Registered User
 
Join Date: Nov 2015
Location: massachusetts
Posts: 1,973
Quote:
Originally Posted by senna's daddy View Post
It's the color of my S260.

A canvas Mohawk on the soft top would be a real DIY project.
I think if you found a mouse eaten soft top you could cut it up to fit
exigegus is offline  
post #15 of 73 (permalink) Old 07-24-2018, 06:01 AM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
My CF roof taped and prepared to make a mold to produce the FG buck.
Attached Images
 
senna's daddy is offline  
post #16 of 73 (permalink) Old 07-24-2018, 07:14 AM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Question for you guys, please PM me if you are interested.

Is there any interest if I make a CF top with openable roof panels (red line) hinged at the straight part (yellow dotted line) of the leading edge (windshield), with a slight (2cm) overlap along the scoop and the trailing edge utilizing flat magnet strips on these overlapped areas for closure, but the airflow will naturally keep the roof panels down at speed.
Attached Images
 
senna's daddy is offline  
post #17 of 73 (permalink) Old 07-27-2018, 12:38 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
For those who are interested, here are some new photos of the initial mold taken from my OEM roof to make an FG buck, the buck will be modified to the final form and then used to make the mold for the finished CF roof.
Attached Images
       
senna's daddy is offline  
post #18 of 73 (permalink) Old 07-27-2018, 12:49 PM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
A sidebar, my friend built this prototype for a stillborn electric 3 wheeler based on a Lotus Elise derived front end.
Attached Images
   
shay2nak and Turbopun like this.
senna's daddy is offline  
post #19 of 73 (permalink) Old 08-06-2018, 08:10 PM
Registered User
 
DannyGT's Avatar
 
Join Date: Jul 2018
Posts: 67
Updates?

2007 Lotus Exige S - Aspen White
DannyGT is offline  
post #20 of 73 (permalink) Old 08-12-2018, 04:46 AM Thread Starter
Registered User
 
senna's daddy's Avatar
 
Join Date: Jun 2016
Posts: 456
Initial OEM mold finished. This will be used as the mold to duplicate the OEM roof's top and bottom contours.
Attached Images
   

Last edited by senna's daddy; 08-12-2018 at 04:54 AM.
senna's daddy is offline  
Sponsored Links
Advertisement
 
Reply

  LotusTalk - The Lotus Cars Community > Lotus Discussions > Lotus Exige

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the LotusTalk - The Lotus Cars Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome