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NEW GT7(Greg Thompson Design) RX7

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Old Jul 29, 2015 | 12:17 PM
  #26  
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It is really bad ***, but then you think....

wait, I am going to spend a bunch of money to make one of the best looking cars ever made look totally different with no difference in performance.

Or... tell me, does it address the aerodynamic deficiencies of the FD RX-7?

Do we have aero figures on this model?
Coefficient of Drag?
Calculated Frontal Area?
Coefficient of Lift Front?
Coefficient of Lift Rear?

Dreaded FD Coefficient of Lift Side?
Just looking at it it should be better than the FD on this one.
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Old Jul 29, 2015 | 12:26 PM
  #27  
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Originally Posted by BLUE TII
It is really bad ***, but then you think....

wait, I am going to spend a bunch of money to make one of the best looking cars ever made look totally different with no difference in performance.

Or... tell me, does it address the aerodynamic deficiencies of the FD RX-7?

Do we have aero figures on this model?
Coefficient of Drag?
Calculated Frontal Area?
Coefficient of Lift Front?
Coefficient of Lift Rear?

Dreaded FD Coefficient of Lift Side?
Just looking at it it should be better than the FD on this one.
great point. i think id be a customer though. maybe i get a second one to keep completely stock.
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Old Jul 29, 2015 | 01:20 PM
  #28  
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From: Quantum Superposition ▲▼
I think it'd be a shame to get rid of the slick bubble roof... Especially if it'd just make the costs more for the overall package.

I really like the direction the front end is going. Hopefully the wing will just be an option, not caring for it.

Lastly, how about making the wheel wells slightly larger, for overall larger/exotic rim, tire, and brake possibilities? Would be amazing, and make the overall impression more aggressive.
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Old Jul 29, 2015 | 02:15 PM
  #29  
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Lots of questions I can address either tonight or tomorrow evening, really busy at work at the moment. Thanks for the feedback I will try to get to each and every question I can over the next few days.
But to address some of the overview points I am digitally creating the models in Solidworks to fit onto the current FD body minus the fenders and hood. I will be doing CFD analysis to at minimum create a zero lift package, to do this I am partnering with the team at Autodesk that does all the aero testing for Indycar. To give a brief example of that work here is my winning entry for the Local Motors Street Car competition which will be built over the course of the next two years.

Local Motors SF01 - https://localmotors.com/idesigncars/sports-car-challenge/entries/

Last edited by Rotr8; Jul 29, 2015 at 02:21 PM.
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Old Jul 29, 2015 | 02:30 PM
  #30  
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I also have some aftermarket replacement products in development for the FD, some which I will start posting soon enough.
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Old Jul 29, 2015 | 02:45 PM
  #31  
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I love the design of this and I can't wait to see what it looks like once it's more than just digital!
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Old Jul 29, 2015 | 02:51 PM
  #32  
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Damn. Kit looks good. Wonder what the price tag would be on it
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Old Jul 29, 2015 | 02:53 PM
  #33  
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I will be doing CFD analysis to at minimum create a zero lift package, to do this I am partnering with the team at Autodesk that does all the aero testing for Indycar.

Excellent! So it will look bad *** and provide function.
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Old Jul 29, 2015 | 05:11 PM
  #34  
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Also Most Kits have hte bad habit of making things heavier . Will this kit replace the Doors for example or will it just be a bunch of extra weight added onto them ?
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Old Jul 29, 2015 | 07:49 PM
  #35  
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From: Quantum Superposition ▲▼
It'd be nice if the factory rear fenders didn't have to be cut up /cut off. Probably not possible...
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Old Jul 29, 2015 | 08:08 PM
  #36  
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Originally Posted by REVLUC
Lastly, how about making the wheel wells slightly larger, for overall larger/exotic rim, tire, and brake possibilities? Would be amazing, and make the overall impression more aggressive.
Originally Posted by REVLUC
It'd be nice if the factory rear fenders didn't have to be cut up /cut off. Probably not possible...
Here you go. Maybe too much gap?

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Old Jul 30, 2015 | 05:50 AM
  #37  
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Can't wait for this to come out because it will add value to my stock body. :]
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Old Jul 30, 2015 | 12:17 PM
  #38  
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Originally Posted by Rocketeerbandit
Can't wait for this to come out because it will add value to my stock body. :]
I can't tell if you are being sarcastic or not

There has never been a body kit that has added long term value to an FD that I'm aware of but maybe this will be the 1st
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Old Jul 30, 2015 | 05:25 PM
  #39  
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Originally Posted by Fritz Flynn
I can't tell if you are being sarcastic or not

There has never been a body kit that has added long term value to an FD that I'm aware of but maybe this will be the 1st
That's what he's saying. As people install this kit, the value of his stock-body FD will increase.
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Old Jul 30, 2015 | 05:45 PM
  #40  
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Yeah it was sarcastic but also true. The kit looks pretty amazing but I like clean looking cars more.
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Old Jul 30, 2015 | 06:59 PM
  #41  
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Originally Posted by gmonsen
Everyone knows I am one of the strongest proponents of the stock FD with the original front bumper and no rear wing. However, this design is nicer than anything Mazda has come up with. Hints of current Ferrari design, some Viper, and a lot of old Pininfarina. It makes it very interesting for me to help justify a possible second 20b-powered FD. I'd never get rid of my stockish FD though.

Someone asked about whether this was some foam core overlay and I think Greg made it clear that these were replacement panels meaning they should not add weight and could reduce weight, depending on whether they are carbons fiber or what. Seriously, although I'd redo the front a bit, that thing with a supercharged 20b would be a spectacular car.

G
I'm with you. This would be a great addition for a second, project FD. Stockish with twins, and this with some sort of freakish 20b

If you need CFD work, I know some guys: Velox Motorsports
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Old Jul 30, 2015 | 08:19 PM
  #42  
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might look cool next to my kit-car Cobra but I would have to see it in real life before I spent the cash. After all the time, effort, scraped knuckles, cussing, and $$ spent on my FD I might have to find a new project car to modify for this kit.
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Old Jul 30, 2015 | 08:56 PM
  #43  
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Oh man, my life's plan was to have two RX-7s. One with my dream aero package and a Spirit R I will keep stock. NOW it looks like I might have to have threeeeee

Looks great, I can't wait to see specs.
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Old Aug 1, 2015 | 01:04 PM
  #44  
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Ok let me take an initital stab at some of the points you guys have made.


Originally Posted by ptrhahn
The closest thing to the FD is the roofline and door, which stands to reason.

It's great looking. I'd drive it. It's not quite the timeless design of the FD, but I'd say mission accomplished in terms of an updated, aggressive design that looks like a current Mazda.

I wonder where the project really is in terms of development.
During the time that I was designing this it was about 2013-2014 and was fairly modern looking compared to other cars. The end goal was to design a modernized FD that would be built on top of the FD chassis. I then started to take on more clients for my business and could not spend enough time to accomplish the kit in a timely manner. That is starting to change and I will be moving to the next phase of the project within about a months time. I didn't want to start a build thread a couple years ago and have interest wain from the initial excitement. I am still hesitant to post anything prematurely that may build unrealistic expectations. This is a project I work on in my free time and for now that's hard to come by.

Originally Posted by Fritz Flynn
Not bad

Hate to think what that kit with wing HLs etc... is going to cost. Good luck selling it LOL


Originally Posted by Monkman33
Something like that... they just need to offer it as a kit car like factory five does. build a tube chassis and body panels. have it accept the engine, transmission, and suspension from the FD. And I bet they could sell that for 10-15k
You're pretty spot on, I'm estimating that to do the kit right, using high quality process and materials will cost the end customer about $15K-$18K if enough people are interested for me to move into small production(about 25 kits)

Originally Posted by Fritz Flynn
Yep again though good luck building it for anywhere near 15k

I'd guess just this body kit would be 10 plus
Yes, again the Vielside Fortune kit is $17K for the genuine deal and takes 3-6 months for them to make once an order is placed. So I figure there are enough people out there that may gravitate towards this kit to go to production.


Originally Posted by Montego
Yeah that is a rather good looking. The best modern iteration so far? I think so.

But if that is a kit: Man I'd have a hell of a hard time chopping my FD to fit that (money aside of course).
There seems to be plenty of people will to chop up FDs now-a-days, and to have something that can sit next to a 458 or 650S or modern Porsche and look up to date I think will be worth it.

Originally Posted by t-von
I feel the same! Now this would be perfect for a damaged restoration project.
Yes the FD I'm using as a donor isn't quit a salvage but its not in the best shape aesthetically, which there are plenty of FDs already in this condition.

Originally Posted by adam c
Maybe that's what the next RX7 "should "look like (if there ever is one)
Yep that's what my goal was, to make a modern interpretation of an FD.


Originally Posted by gmonsen
Perhaps you could give us some idea as to where you are with the project? Is there anything physical yet? How do you plan to create the prototype body? Potters clay? Styrofoam? Has any of that actualization work begun?

Gordon
Currently there is a digital model, coming soon will be a 1/10 model then a 1/4 model, then I will go straight to CNC milled foam panels for final test fitting then later if needed for production milled molds. Currently all dimensions are based off FD blueprints, but later this month I will be digitally scanning the entire chassis and body panels to ensure that my hard points are as accurate as possible before going to physical models.

Originally Posted by Dvst8
Would love to see this produced. Lets crowd fund, group buy etc.....
I've researched this heavily and as excited as I was when Kickstarter, Patreon, and Go Fund Me all sprouted up, there has yet to be a successful Automotive Design effort to bench mark for lessons learned. This discouraged me from doing so although I have several pages already written covering a whole KS campaign including goals and rewards at various levels.

Originally Posted by Tem120
it looks spectacular , Chances are just like the rocket bunny kit .. a few people will buy it and it will come out to car shows , and than hide in a garage for every other day .
I certainly hope not. First and foremost this design and build is showcasing my brand, if it goes to production I would expect people to use it in the same way their FDs are currently being used, which for most isn't too far off your statement now that I think about it.


Originally Posted by REVLUC
I think it'd be a shame to get rid of the slick bubble roof... Especially if it'd just make the costs more for the overall package.

I really like the direction the front end is going. Hopefully the wing will just be an option, not caring for it.

Lastly, how about making the wheel wells slightly larger, for overall larger/exotic rim, tire, and brake possibilities? Would be amazing, and make the overall impression more aggressive.
There is a roof panel I am designing into this kit, I will be using it on mine, but it would be up to the end user to include it in the build. It would be awkward though to have just one of the panels missing from the kit but that's just my opinion.
The wing certainly is an option, one of the customers on the waiting list wants a wing for track use. Currently the waiting list for the kit is 4, all who know this is a side project and don't have deadlines to their builds.
Larger wheel wells are a must for the kit and will demand cutting of the rear fender to accomplish this just like some of the FEED and RE, and RB kits.

Originally Posted by Tem120
Also Most Kits have the bad habit of making things heavier . Will this kit replace the Doors for example or will it just be a bunch of extra weight added onto them ?
The bumpers front fenders hood and mirrors will all be replacement parts the rear fenders will be add on's and the doors I haven't decided but designed them to be add on's as well as to not compromise safety.

Originally Posted by earlqhan
I'm with you. This would be a great addition for a second, project FD. Stockish with twins, and this with some sort of freakish 20b

If you need CFD work, I know some guys: Velox Motorsports
Appreciate the source, I have a CFD resource as well that I will include once I start a build thread.

Thanks for all the interest but please be patient this is a side project that does not pay the bills so my other work for now is a priority, if anyone wants to discuss further some sort of crowd sourcing campaign please feel free to PM I will try to answer in a timely manner.

Last edited by Rotr8; Aug 1, 2015 at 02:42 PM.
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Old Aug 1, 2015 | 02:55 PM
  #45  
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You build that kit car using all fd running gear, And I will buy one. It would be the dream FD. Heck, I bet you sell just the chassis to many people wanting the geometry of the FD but with whatever body panels and looks they want.
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Old Aug 1, 2015 | 04:23 PM
  #46  
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Why no back shot?
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Old Aug 1, 2015 | 08:19 PM
  #47  
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Originally Posted by thatdon
Why no back shot?






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Old Aug 1, 2015 | 08:20 PM
  #48  
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Last edited by Rotr8; Aug 1, 2015 at 09:27 PM.
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Old Aug 1, 2015 | 08:21 PM
  #49  
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Don't mind the wonky reflections on the rear fenders, the top light box is a round disc that creates unpleasant highlights in the renders.
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Old Aug 1, 2015 | 09:16 PM
  #50  
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Thanks for the full body pics.

Not feeling it but maybe it will grow on me

This car is just super hard to improve upon

Last edited by Fritz Flynn; Aug 1, 2015 at 09:20 PM.
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