The NASA TT rules have been released for next season and I am being heavily penalized for my nismo wing because it is longer than 8" from front to rear of the car (it is 8.5" to be exact). I really bought it for cosmetic reasons and don't think it really does anything in terms of downforce ( outside of the 5 lbs that it weighs).

Does anyone think the nismo wing adds any usable downforce on a road course??

 

Does it really matter considering the penalty involved?

HRP sells a nice ACP wing with a 1/2" wicker that's legal for Grand AM AGT, SCCA GT, WC GT, etc. $1,799 without end plates or uprights.

 

I was debating this very question the other day. Downforce on a wing is created by making air underneath the wing flow faster than the air on top of the wing. Based on looks alone, I don't think the Nismo wing's shape really has that effect on the airflow. Then again, I am no aerodynamics expert.

 

I guess I didn't explain my options. It's either the nismo wing or no wing

Basically, I enter my street car in the TT series and pretty much want to keep what I've got on the car and try to stay in class TTB. My two big point accumulating items (that don't reduce lap times that significantly) are my unichip, that gets me roughly 10 lbs of torque, and my wing that makes me feel 10 years younger. Since I never felt like I had a deficiency in downforce, I was considering just scrapping the coffee table wing. My other option is to unplug the unichip when I get to the track to save those points. I'm just regretting the fact that I plunked down the $$ on they chip and dyno tune and I'm potentially not going to be able to use it.

My plan was to keep the same car I ran last year with no changes. I'm not really into it enough anymore to be scrounging around for that extra 10th of a sec that I was looking for in the past.

 

Ditch the wing for your next track day and see if you notice a difference.

 

The above should have been my entire post. The benefits of the wing are likely outweighed by the penalty imposed.

 

When talking about a street car and that particular wing... I think the weight savings of losing the wing, along with the points savings, would outweight the benefits of keeping it. Especially if it bumps you out of the top of one class into the bottom of another.

 

Will probably be ditching the wing. This whole think is kind of unfortunate because I have to pay a body shop $500 to remove it just to satisfy the NASA rulebook.

Nismo wing for sale

 

If you need to get rid of the wing why don't you just put the money into a new CF hatch?

 

Is the wing mounted in a way so that it could easily be removed just for NASA events?

 

What does Unitech have to say about this wing since they used them on their Grand Am cars?

 

Down force , maybe at high speeds but doubt it.

 

Really???? Mine is just attached with those 4 mounting bolts. It should be easy enough to just take off if need be.

 

It's only 4 bolts, but you have to seal it each time with silicone or else water will leak through.
Too much of a hassle when I'm already changing tires and brakes at each event.

 

You have to see the whole car as a wing. It's pretty hard to tell actually.

When Porsche went with the giant whale tail wing on their race cars many years ago, it was an "emergency contermeasure" to keep the car stable in the corners. They figured the stability would counter the increase in drag down the straight.

What a surprise it was when they found out the car was not only more stable, it was faster too...

The Z Track is not a good choice for TT Dave. Just for fun, build a TTB Mustang and see how much goodies you can put on it to match your stock Z!

Back to the topic. The wing is probably better than the stock aero package. Is it worth it ? No idea!

 

They say no added downforce

Has anyone actually removed the entire hatch? Is it easy to do? I've got a local person who might be interested in doing a swap to get my wing.

 

i think the car will be 0 . something second slower since it adds weight

 

You're right that it will be out gunned in TTB, but... It will make a nice TTC car