ABOUT : Rexpeed Trunk Spoiler
Evolved Member
Joined: Feb 2007
Posts: 513
Likes: 0
From: Raleigh, NC
with the stock wing and the vg, you should get worse gas mileage than without the vg, because you increase the downforce by increasing airflow to the wing, but does that mean that with a vg and wingless, you should get the best mileage, because the vg would decrease drag and wingless would decrease downforce?
I agree with you that VG + Wingless would give the best gas mielage, just not your reasoning for it.
with the stock wing and the vg, you should get worse gas mileage than without the vg, because you increase the downforce by increasing airflow to the wing, but does that mean that with a vg and wingless, you should get the best mileage, because the vg would decrease drag and wingless would decrease downforce?
l8r)
As far as downforce at high speeds with the stock wing I call BS. I have been driving wingless (while I was waiting for my rexpseed type C) for a little over a week, took it up to 100-140 and the car felt as planted as with the wing. I DO have a VG. Don't know if that is what is making the difference.
I, like many, have read that the car wingless is "squirrely" at high speeds. I didn't feel any of that.
RS owners need to chime in since they are wingless from the get go.
I, like many, have read that the car wingless is "squirrely" at high speeds. I didn't feel any of that.
RS owners need to chime in since they are wingless from the get go.
Newbie
Joined: Apr 2007
Posts: 98
Likes: 0
From: Bay Area
No, with the stock wing and VG you should get BETTER gas mielage than if you don't have it because your DECREASING lift below the spoiler and decreasing the size of a low pressure pocket behind the rear winshield.
I agree with you that VG + Wingless would give the best gas mielage, just not your reasoning for it.
I agree with you that VG + Wingless would give the best gas mielage, just not your reasoning for it.
As far as downforce at high speeds with the stock wing I call BS. I have been driving wingless (while I was waiting for my rexpseed type C) for a little over a week, took it up to 100-140 and the car felt as planted as with the wing. I DO have a VG. Don't know if that is what is making the difference.
I, like many, have read that the car wingless is "squirrely" at high speeds. I didn't feel any of that.
RS owners need to chime in since they are wingless from the get go.
I, like many, have read that the car wingless is "squirrely" at high speeds. I didn't feel any of that.
RS owners need to chime in since they are wingless from the get go.
i do think the rear end is a bit light and would have the ability to get a bit squirrelly depending on the circumstances
Gas mileage gains of a VG + stock wing are minimal. Should improve slightly without the wing, since you're getting rid of some drag. My earlier comment was in reference to adding a rear undertray (diffuser). At the speeds the OP is driving, it should make a noticeable difference, since the stock rear bumper is like a parachute...
l8r)
l8r)
