Which is faster top down or up?i - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Race Prep Miata race-only chat.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 04-20-2012, 10:51 AM   #1
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Sep 2009
Location: singapore
Posts: 228
Total Cats: 2
Default Which is faster top down or up?i

I am running a time attack and I do not have a hardtop. I was just wondering if it is faster for me to run with the top down or up? Or it does not really matter at all?
nismo502 is offline   Reply With Quote
Old 04-20-2012, 10:58 AM   #2
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

top up will techincally be faster.
Braineack is offline   Reply With Quote
Old 04-20-2012, 11:34 AM   #3
Junior Member
 
Join Date: Aug 2008
Location: Toronto, Canada
Posts: 129
Total Cats: -1
Default

I heard top up/hardtop with rear glass removed is fastest.
GT42R is offline   Reply With Quote
Old 04-20-2012, 11:39 AM   #4
Junior Member
iTrader: (3)
 
Join Date: Apr 2010
Location: South Bay, CA
Posts: 354
Total Cats: -2
Default

Quote:
Originally Posted by GT42R View Post
I heard top up/hardtop with rear glass removed is fastest.
This is what I'm running and seems to work best for me. All configuration run into a wall of air at about 100mph.
comradefks is offline   Reply With Quote
Old 04-20-2012, 11:43 AM   #5
Senior Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Sweden
Posts: 1,392
Total Cats: 58
Default

Quote:
Originally Posted by GT42R View Post
I heard top up/hardtop with rear glass removed is fastest.
With windows down/removed maybe, but not with side windows up, then there is no advantage in removing the rear window.

Fastback is the slickest one.

No top with cage is the worst, real risk of being run over by cars approaching from behind (they get sucked into the draft faster than they can imagine).

The time spend at 80+ plays a big role in if it's worth worrying about drag.
NiklasFalk is offline   Reply With Quote
Old 04-20-2012, 12:01 PM   #6
Junior Member
Thread Starter
iTrader: (2)
 
Join Date: Sep 2009
Location: singapore
Posts: 228
Total Cats: 2
Default

ahh,,thanks. I will try it tomorrow.
nismo502 is offline   Reply With Quote
Old 04-20-2012, 03:20 PM   #7
Junior Member
 
Join Date: Jun 2011
Location: Houston
Posts: 409
Total Cats: 17
Default

Check with your sanctioning body, but the races I do require that any convertible tops are down and secured in place
Handy Man is offline   Reply With Quote
Old 04-21-2012, 04:50 AM   #8
Junior Member
 
Join Date: Nov 2010
Location: Santa Monica, CA
Posts: 74
Total Cats: 1
Default

What about a third variable, removing the an entire heated glass top assembly vs top up?
customfab87 is offline   Reply With Quote
Old 04-21-2012, 05:05 AM   #9
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,133
Total Cats: 599
Default

How about a thong top? Heard thats BAUCE.
triple88a is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Raleigh: Fiberglass headlight scope, 1.6L ECU, AFM, Hardtop latches, more bigmackloud Miata parts for sale/trade 13 09-22-2017 01:34 PM
OTS Bilstein to motorsports ASN conversion stoves Suspension, Brakes, Drivetrain 5 04-21-2016 04:00 PM
1991 special edition with hard top full part out JC, NJ russian Miata parts for sale/trade 6 10-08-2015 04:01 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 01:33 AM.