Thread: Drafting Surge
View Single Post
Old 07-14-2009, 07:20 AM   #1 (permalink)
robchalmers
Master EcoModder
 
Join Date: Jun 2009
Location: UK
Posts: 659

Chug - '96 Volkswagon Polo CL
TEAM VW AUDI Group
90 day: 49.42 mpg (US)

L'Autre - '03 Renault Megane Sport Tourer Expression
Diesel
90 day: 45.02 mpg (US)
Thanks: 20
Thanked 11 Times in 11 Posts
Drafting Surge

Hey guys just wondering if anyone else driving a hatchback or station wagon with either zigzag tape, a kamm back or similar has noticed what I'm going to call Drafting surge.

since fitting buffet tap on my rear quarter radii to act as a ultra bargin basment VG vvvvvvv


I've notice two things:
1. a noticable increase of dirt directly from the tape but not as much on the centre of the screen as there was before the tape.
2. Drafting surge. basically as i pass a queue of traffic and someone jinks out behind me i feel a sharp jolt forward in acceleration, icould swear the last couple of time I've heard a pop sound too, but I'm guess thats my imagination. My theories for this are a bit random at the moment My main one is:the following car disrupting the near wake and thus reducing my Overall drag load and giving me a temporary imbalance in power/drag compared to speed i was travelling at. The pop i think is coming from the moisture vents on the rear valance moving due to a rapid change in pressure....

anyone else had this ?? theories??

__________________
-----------------------------------------
good things come to those who wait, sh*t turns up pretty much instantly






twitter.com/bertchalmers
  Reply With Quote