Rear Difussers
Originally Posted by Big Ben,Oct 19 2004, 12:31 PM
I think this diffuser will work just as well as the one produced by Feels or any other company. Don't be fooled by the thought that you have to spend big money to get the great performance that the more high priced companies sell. Burt Rutan proved that just a couple of weeks ago.
That was a cool plane, but a ballistic sub-orbital shot and an orbital insertion are about as far apart as my bicycle and my S2000. Both are amazing high performance machines, but the one is definitely not the same as the other.
I also agree that this device probably worka as well as any other bolt-on aftermarket diffuser. But that's not saying much, since I wouldn't put any of them on my car.
Originally Posted by mikegarrison,Oct 19 2004, 01:04 PM
Pushed down from the top (assuming a wing) is a lot easier to adjust. And most crucially, it doesn't change as much when your ride height changes (due to a bump, for instance).
The venturi that is produced by a diffuser requires that the ride height not change by much while at speed. This means that if you come over a crest at 90mph, the suspension extends and you now have probably 5" to 6" ride height under the car, the venturi is virtually gone.
While traveling straight, this wouldn't be a big deal, but if you turn at the same time, you might be in for a wild ride.
This happened to a McLaren F1 race car a few years ago. The video has circulated around the web for years. The video where the car comes over the crest in the road and it just starts to do several back flips in the air.
This would most likely never happen to an S2000 simply because the S2000 can't reach the speeds of that car. There is a big difference between 150mph and 200mph.
Originally Posted by mikegarrison,Oct 19 2004, 01:43 PM
Darn straight! You too can spend $25M+ to earn a $10M prize.
That was a cool plane, but a ballistic sub-orbital shot and an orbital insertion are about as far apart as my bicycle and my S2000. Both are amazing high performance machines, but the one is definitely not the same as the other.
I also agree that this device probably worka as well as any other bolt-on aftermarket diffuser. But that's not saying much, since I wouldn't put any of them on my car.
That was a cool plane, but a ballistic sub-orbital shot and an orbital insertion are about as far apart as my bicycle and my S2000. Both are amazing high performance machines, but the one is definitely not the same as the other.
I also agree that this device probably worka as well as any other bolt-on aftermarket diffuser. But that's not saying much, since I wouldn't put any of them on my car.
But the money spent for the gains that are really not needed makes this product fall in the "bling" catagory for me.
I wonder if there is a way to measure just how much a diffuser helps, creating less drag, and accelerating from higher speeds. Do you think you would feel a difference with a stock s2k and one with a diffuser accelerating from say 80-140?
diffusers rule.. forget rear under spoilers or whatever else.. top secret and feels are the 2 most common for our car.. i want a top secret carbon diffuser with the kevlar vortex generators!
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Does anybody know if a feels rear diffuser will fit with a dual exahust... BTW here pics of lots of diffusers on the s2k. https://www.s2ki.com/forums/index.php?showt...er%20pics&st=50
Originally Posted by duff0000,Oct 19 2004, 01:53 PM
I wonder if there is a way to measure just how much a diffuser helps, creating less drag, and accelerating from higher speeds. Do you think you would feel a difference with a stock s2k and one with a diffuser accelerating from say 80-140?
[QUOTE]diffusers rule.. forget rear under spoilers or whatever else.. top secret and feels are the 2 most common for our car.. i want a top secret carbon diffuser with the kevlar vortex generators!
Originally Posted by Big Ben,Oct 19 2004, 12:44 PM
This happened to a McLaren F1 race car a few years ago. The video has circulated around the web for years. The video where the car comes over the crest in the road and it just starts to do several back flips in the air.
Wouldn't be surprised if a McLaren did that too though, or any race car for that matter with aero in the wrong condition.
http://www.racingflix.com/browsevideos.asp?p=3
Originally Posted by Big Ben,Oct 19 2004, 02:44 PM
This is very true , but most people don't realize this.
The venturi that is produced by a diffuser requires that the ride height not change by much while at speed. This means that if you come over a crest at 90mph, the suspension extends and you now have probably 5" to 6" ride height under the car, the venturi is virtually gone.
While traveling straight, this wouldn't be a big deal, but if you turn at the same time, you might be in for a wild ride.
This happened to a McLaren F1 race car a few years ago. The video has circulated around the web for years. The video where the car comes over the crest in the road and it just starts to do several back flips in the air.
This would most likely never happen to an S2000 simply because the S2000 can't reach the speeds of that car. There is a big difference between 150mph and 200mph.
The venturi that is produced by a diffuser requires that the ride height not change by much while at speed. This means that if you come over a crest at 90mph, the suspension extends and you now have probably 5" to 6" ride height under the car, the venturi is virtually gone.
While traveling straight, this wouldn't be a big deal, but if you turn at the same time, you might be in for a wild ride.
This happened to a McLaren F1 race car a few years ago. The video has circulated around the web for years. The video where the car comes over the crest in the road and it just starts to do several back flips in the air.
This would most likely never happen to an S2000 simply because the S2000 can't reach the speeds of that car. There is a big difference between 150mph and 200mph.



