XKR Super G... Going for Mach 1
02-10-2009, 07:35 PM
#182
One more post from me on Varis.....I didn't intend to ruffle any feathers.....just wanted to help out. I was burned in the past with Do-Luck......my 4-6 week initial lead time turned into 13 months. I swear to god every time you make an order for a "JDM" product, the standard response is 4-6 weeks. I don't want to see anyone get jerked around....that's all.
I look forward to the results and pricing as I may be interested.
I look forward to the results and pricing as I may be interested.
02-10-2009, 07:38 PM
#183
New update....
Just got off the phone with Sharif...he will be involved with this side project....He has come up with the idea of renting a Wind Tunnel in ( I think he said) NC.
This would save us a lot of the guess work....I am sure TTg35fort would agree. Sharif also said that he would make the design out of some kind of lightweight metal and we could then have it made out of CF.
Things are coming together.
Just got off the phone with Sharif...he will be involved with this side project....He has come up with the idea of renting a Wind Tunnel in ( I think he said) NC.
This would save us a lot of the guess work....I am sure TTg35fort would agree. Sharif also said that he would make the design out of some kind of lightweight metal and we could then have it made out of CF.
Things are coming together.
02-10-2009, 07:41 PM
#184
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XKR i think you have done more R&D on building ur G to be a monster than Nissan/infiniti did coming up with the car!! Good luck to you and show them bastards what are cars can do!!
02-11-2009, 06:11 AM
#186
ya theres the A2 tunnel in charlotte that does Nascar work. Pretty sure that one is booked 24/7 unless u r someone with DEEP pockets, which apparently yours are
I know the tunnel next door they do bicycle aero testing and thats way cheap, only like 400$/hr. But that might be only for us time trial nerds, not car stuff.
I know the tunnel next door they do bicycle aero testing and thats way cheap, only like 400$/hr. But that might be only for us time trial nerds, not car stuff.
02-11-2009, 06:16 AM
#187
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ya theres the A2 tunnel in charlotte that does Nascar work. Pretty sure that one is booked 24/7 unless u r someone with DEEP pockets, which apparently yours are
I know the tunnel next door they do bicycle aero testing and thats way cheap, only like 400$/hr. But that might be only for us time trial nerds, not car stuff.
I know the tunnel next door they do bicycle aero testing and thats way cheap, only like 400$/hr. But that might be only for us time trial nerds, not car stuff.
Last edited by XKR; 02-11-2009 at 06:19 AM.
02-11-2009, 05:11 PM
#191
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Aerodynamic Improvements
What aerodynamic prototypes are you going to test in a wind tunnel?
Mention:
One underbody gate/funnel design?
One rear diffuser design
Not-mention: vortex accelerators
adjustable underbody N.A.C.A. wings
rear deck wings (mention to be avoided)
Are you going to "bench test" your current car set-up before the aero parts are added?
I am not sure if your goal is to only increased down force (i.e. increase coefficient of drag only?) inorder to keep the car stable at 175+m.p.h?
Check out college wind tunnels for availability. The college I went to had their own wind tunnel and at time looked for projects to test.
Additionally, I believe their is software available to design/test at various speeds so you can optimize the time in the wind tunnel.
Mention:
One underbody gate/funnel design?
One rear diffuser design
Not-mention: vortex accelerators
adjustable underbody N.A.C.A. wings
rear deck wings (mention to be avoided)
Are you going to "bench test" your current car set-up before the aero parts are added?
I am not sure if your goal is to only increased down force (i.e. increase coefficient of drag only?) inorder to keep the car stable at 175+m.p.h?
Check out college wind tunnels for availability. The college I went to had their own wind tunnel and at time looked for projects to test.
Additionally, I believe their is software available to design/test at various speeds so you can optimize the time in the wind tunnel.
02-11-2009, 05:44 PM
#192
Just want to throw this out there for discussion...
I've been planning to eventually get the Top Secret rear diffuser, but now I'm more open to the idea of something custom. I like the idea of a fully enclosed undertray with diffuser similar to Ferrari.
However... Let's not forget that Smoky Nagata took his Top Secret widebody G to over 211mph on the Autobahn in 2005. Aside from the Top Secret wide body kit and the rear diffuser, I'm not aware of that car having any additional underbody aero mods. (If somebody knows otherwise, please don't hesitate to correct me.
) The car didn't have a huge GT wing either.
Sooo... Why not use something already available on the market that has been proven above 200mph???
I've been planning to eventually get the Top Secret rear diffuser, but now I'm more open to the idea of something custom. I like the idea of a fully enclosed undertray with diffuser similar to Ferrari.
However... Let's not forget that Smoky Nagata took his Top Secret widebody G to over 211mph on the Autobahn in 2005. Aside from the Top Secret wide body kit and the rear diffuser, I'm not aware of that car having any additional underbody aero mods. (If somebody knows otherwise, please don't hesitate to correct me.
) The car didn't have a huge GT wing either.Sooo... Why not use something already available on the market that has been proven above 200mph???
02-11-2009, 06:09 PM
#193
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I have many years of experience racing at speeds over 175mph. I have driven other cars that were designed for those speeds....I have also driven my G over 185mph (measured by the Camp2 and Radar) ....and it does not feel stable. The difference between this car and the other cars I have driven at these speeds is an undertray.....I am not talking about a racing car...I am talking about a street car.
The goal is to make the car stable at high speeds without having to add any upper wings or having to change the stock upper body of the car.
Thanks for the info...it should help.
The goal is to make the car stable at high speeds without having to add any upper wings or having to change the stock upper body of the car.
Thanks for the info...it should help.
What aerodynamic prototypes are you going to test in a wind tunnel?
Mention:
One underbody gate/funnel design?
One rear diffuser design
Not-mention: vortex accelerators
adjustable underbody N.A.C.A. wings
rear deck wings (mention to be avoided)
Are you going to "bench test" your current car set-up before the aero parts are added?
I am not sure if your goal is to only increased down force (i.e. increase coefficient of drag only?) inorder to keep the car stable at 175+m.p.h?
Check out college wind tunnels for availability. The college I went to had their own wind tunnel and at time looked for projects to test.
Additionally, I believe their is software available to design/test at various speeds so you can optimize the time in the wind tunnel.
Mention:
One underbody gate/funnel design?
One rear diffuser design
Not-mention: vortex accelerators
adjustable underbody N.A.C.A. wings
rear deck wings (mention to be avoided)
Are you going to "bench test" your current car set-up before the aero parts are added?
I am not sure if your goal is to only increased down force (i.e. increase coefficient of drag only?) inorder to keep the car stable at 175+m.p.h?
Check out college wind tunnels for availability. The college I went to had their own wind tunnel and at time looked for projects to test.
Additionally, I believe their is software available to design/test at various speeds so you can optimize the time in the wind tunnel.
02-11-2009, 06:17 PM
#194
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If I showed up with that body kit....I would be lucky if I came second to last. They would first tech me to death and then place me in open class where 211 mph is nothing special. Bugatti Veyron does that speed in neutral 
That rear spoiler will not do more for you than the stock ones....its the wide body that helps that car. That car has 800hp and his has reached 221mph. I will look to see if he ran an underbody system....Good post
Here is a Diffusor in CF for a G37 http://www.silviaparts.com/body-kits.../108/topsecret Click on the bottom middle picture. With this kind of Diffusor...I would not need to relocate the mufflers.
That rear spoiler will not do more for you than the stock ones....its the wide body that helps that car. That car has 800hp and his has reached 221mph. I will look to see if he ran an underbody system....Good post
Here is a Diffusor in CF for a G37 http://www.silviaparts.com/body-kits.../108/topsecret Click on the bottom middle picture. With this kind of Diffusor...I would not need to relocate the mufflers.
Just want to throw this out there for discussion...
I've been planning to eventually get the Top Secret rear diffuser, but now I'm more open to the idea of something custom. I like the idea of a fully enclosed undertray with diffuser similar to Ferrari.
However... Let's not forget that Smoky Nagata took his Top Secret widebody G to over 211mph on the Autobahn in 2005. Aside from the Top Secret wide body kit and the rear diffuser, I'm not aware of that car having any additional underbody aero mods. (If somebody knows otherwise, please don't hesitate to correct me.) The car didn't have a huge GT wing either.
Sooo... Why not use something already available on the market that has been proven above 200mph???
I've been planning to eventually get the Top Secret rear diffuser, but now I'm more open to the idea of something custom. I like the idea of a fully enclosed undertray with diffuser similar to Ferrari.
However... Let's not forget that Smoky Nagata took his Top Secret widebody G to over 211mph on the Autobahn in 2005. Aside from the Top Secret wide body kit and the rear diffuser, I'm not aware of that car having any additional underbody aero mods. (If somebody knows otherwise, please don't hesitate to correct me.
) The car didn't have a huge GT wing either.Sooo... Why not use something already available on the market that has been proven above 200mph???
Last edited by XKR; 02-11-2009 at 06:57 PM.
02-11-2009, 07:26 PM
#196
If I showed up with that body kit....I would be lucky if I came second to last. They would first tech me to death and then place me in open class where 211 mph is nothing special. Bugatti Veyron does that speed in neutral
That rear spoiler will not do more for you than the stock ones....its the wide body that helps that car. That car has 800hp and his has reached 221mph. I will look to see if he ran an underbody system....Good post
That rear spoiler will not do more for you than the stock ones....its the wide body that helps that car. That car has 800hp and his has reached 221mph. I will look to see if he ran an underbody system....Good post
But I think that the rear diffuser must have played a significant role in it's high speed stability too. And unlike some of the diffusers out there that are little more than fashion, I think the Top Secret diffuser is functional. And it might just be the only one that has been tested successfully on a G at over 200mph. I just think maybe we should take a closer look at the possibility of the Top Secret diffuser as a viable solution for high speed stability.
02-11-2009, 07:36 PM
#199
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I realize that body kit would draw unwanted attention for you Mike. I wasn't suggesting that you get the TS widebody kit. I also realize that the widebody probably helped it's stability as well.
But I think that the rear diffuser must have played a significant role in it's high speed stability too. And unlike some of the diffusers out there that are little more than fashion, I think the Top Secret diffuser is functional. And it might just be the only one that has been tested successfully on a G at over 200mph. I just think maybe we should take a closer look at the possibility of the Top Secret diffuser as a viable solution for high speed stability.
But I think that the rear diffuser must have played a significant role in it's high speed stability too. And unlike some of the diffusers out there that are little more than fashion, I think the Top Secret diffuser is functional. And it might just be the only one that has been tested successfully on a G at over 200mph. I just think maybe we should take a closer look at the possibility of the Top Secret diffuser as a viable solution for high speed stability.
I agree...
Last edited by XKR; 02-11-2009 at 07:42 PM.
