rear diffuser question !!!
Thread Starter
Instructor
Joined: Oct 2008
Posts: 221
Likes: 0
rear diffuser question !!!
Hi guys, i want to ask you about the rear diffuser for the c6 << when i pass 270 km in my c6 the car keeps going left and right (no stability) because of the turbulence under the car , i found a diffuser but i duno if this would work , here is the link : http://www.mamotorworks.com/corvette...-166-9048.html
i found also a replacment for my rear fasica with diffuser but the cost is so high for a part like this (costs 1,500 $), here is the link : http://www.breathlessperformance.com...arDiffuser.asp
your help is appreciated
i found also a replacment for my rear fasica with diffuser but the cost is so high for a part like this (costs 1,500 $), here is the link : http://www.breathlessperformance.com...arDiffuser.asp
your help is appreciated
Melting Slicks
Joined: Nov 2005
Posts: 2,345
Likes: 2
From: Houston 06 C6 Ysi SC 402 fgd TX
At 167-170 mph the C6 vette is stable. at least mine stock was. higher than that I cant say cause I upgraded stuff after that.
there could be a cross wind.
as previous poster asked if you adjusted the ride height and did not leave the "rake" that could affect things
you could need an alignment
what about tires. do they have more than 20,000 miles on them 32,000 kilometers?
rather than a diffuser I would suggest either Bilstein or Koni shocks and an upgrade to the sway bars.
there could be a cross wind.
as previous poster asked if you adjusted the ride height and did not leave the "rake" that could affect things
you could need an alignment
what about tires. do they have more than 20,000 miles on them 32,000 kilometers?
rather than a diffuser I would suggest either Bilstein or Koni shocks and an upgrade to the sway bars.
Race Director
Joined: Nov 2001
Posts: 10,143
Likes: 0
From: Retired USCG North Georgia
Then nothing has changed that would affect the handling unless you now have a problem with your car. Maybe your tires are not properly inflated, you have a damged tire or wheel or maybe your alignment got messed up.
Thread Starter
Instructor
Joined: Oct 2008
Posts: 221
Likes: 0
there is nothing with the car, i have 2 of my friends ( one own a cammed zo6 and the other strocked ls2) both of them having the same problem, many guys adviced to go with the diffuser as it do lower the turbluence under the car
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Race Director
Joined: Nov 2001
Posts: 10,143
Likes: 0
From: Retired USCG North Georgia
The mods you did would have no affect on the handling at any speed you were traveling at before unless you are getting tire spin at the high speed which I doubt. If you want higher track speeds and you play with the aerodynamics of the car make sure you look at the whole package, not just a rear diffuser. You might want to add a front splitter and side skirts plus a full on race wing for the back.
Team Owner
Joined: Jun 2007
Posts: 31,088
Likes: 23
St. Jude Donor '08 thru '13
Mine's stable at 170. Lowered on stock bolts, Bilsteins, Pfadt bushings with Z51 sways.
Check your alignment, axle nuts, all steering componentry, and very carefully inspect your tires. You may have a slight delamination developing.
There should be no need for a wing at 170 on the C6. It just adds drag, and will likely build heat in your tires.
Check your alignment, axle nuts, all steering componentry, and very carefully inspect your tires. You may have a slight delamination developing.
There should be no need for a wing at 170 on the C6. It just adds drag, and will likely build heat in your tires.
Advanced
Joined: May 2008
Posts: 94
Likes: 1
From: Omaha NE
For a diffuser to really work the rest of the belly pan has to promote the air flow to it. The bottom cannot be totally smooth as the air will pull away from it and cause lift also. There needs to be tumbling surfaces that help the air stream re attach over and over so it makes it to the diffuser. Those add on blades will do nothing, you would need a complete package to be worth your time.
I also agree with those above that question your alignment and or rake front to rear as a possible solution.
I also agree with those above that question your alignment and or rake front to rear as a possible solution.
