any suggestions for my track day car?

[malibuguy]

i added the VGs last year for the primary purpose to help blow rain off the back window. As only the out edges would blow away, leaving a large separated bubble taking up most of the back window & making hard to see behind me. I added the VGs & anything over 45~mph my back window is damn near dry! But is it hurting/costing me drag? Should I remove the spoiler?

As the car is getting faster & faster, Ill need to add aero to improve grip...i also want to help make the car a little more slippery if possible.

I plan to make a front splitter with an extention to the firewall. I also have a rear diffuser that i'd like to install to help with grip & stability along with smoothing out the whole under trunk area to remove the open voids.

[jeff88]

Can you remove the side view mirrors? What about wheel spats (front & rear)? Maybe a grill block? You could also add some wheel covers and/or skirts. What about weight, can you lose anything on the inside? Also, you can do a delete of some of the belt driven stuff (a/c, power steering, alt., fans, etc.). Obviously power steering would be difficult for a race, but you could get an electric one instead.

Just some thoughts, I'm no expert!

[niky]

Removing the AC belt is enough. And it's easy to do by loosening the tensioner. If it's a track-only car, removing the AC system will help shed fifty pounds or so, and the rear seat and passenger seat another fifty.

Can't close the windows?

[malibuguy]

Windows have to stay open for safety. I removed the ac and ps years ago. I rather not remove the mirrors as its still a street car and I do use them on the track to watch out for the faster cars.

[niky]

If they have to stay open, this may be one of those rare cases where commercial rain guards might have a positive effect on aerodynamics.



At the very least, you won't have to suffer due to the lack of AC in the rain...

A front splitter and a wing will help, but you'll suffer from extra drag. I wonder... do class rules prohibit having rear wheel covers?

[malibuguy]

Ill have to check into that. Maybe do some form of cover...but I need instant/easy access to the lugnuts to check their torque prior to each session. Good idea!

[UFO]

Even in the casual tracking I do, wheel covers are not allowed because they can come off.

[kach22i]

Conveyor belt chin spoiler, cut extra long and wear it down on the track to fit.

Yellow Bird Chin Spoiler - Pelican Parts Technical BBS




I know you have something there, but go much deeper for the track.

[some_other_dave]

Number one mod:

More seat time. With an instructor or a coach, depending on your current skill sets and budget.

-soD