Fastest Miata - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


General Miata Chat A place to talk about anything Miata

Reply
 
 
 
LinkBack Thread Tools
Old 03-04-2009, 01:00 AM   #1
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default Fastest Miata

What is the top speed of a miata?

Stock they are aerodynamically limited, but most of us are not anymore. At what speed do we redline 5th gear with various trans/rear combinations?
skidude is offline   Reply With Quote
Old 03-04-2009, 01:03 AM   #2
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default

By the way, I am assuming a stock redline of 7250ish, but I would assume a taller-than-stock gearing combination will give the highest top speed if it is an option.

The real question is: How fast has any miata ever gone under "its own" power?
skidude is offline   Reply With Quote
Old 03-04-2009, 01:06 AM   #3
Junior Member
 
Join Date: Sep 2008
Posts: 218
Total Cats: 0
Default

I've heard very high indicated speeds (speedo can be wildly inaccurate from car to car, mine is 10 percent off), but 140 actual speed is what most people have reported with the stock rear end. If you raised your rev limiter it would be higher, obviously.

With longer rear gears, I imagine you could go significantly faster, maybe 170, assuming you had the power. Stock nose gets super floaty at high speeds though.
JimAtFSU is offline   Reply With Quote
Old 03-04-2009, 01:14 AM   #4
Hear me Meow
Thread Starter
iTrader: (3)
 
skidude's Avatar
 
Join Date: Apr 2008
Location: Outside Portland Maine
Posts: 1,994
Total Cats: 13
Default

Quote:
Originally Posted by JimAtFSU View Post
Stock nose gets super floaty at high speeds though.
I've never had the ***** to go more than an indicated 120 or so because it gets a little light on its feet.
skidude is offline   Reply With Quote
Old 03-04-2009, 01:15 AM   #5
Junior Member
 
Join Date: Sep 2008
Location: chicago
Posts: 49
Total Cats: 0
Default

Hahaha mine was slow with its own power when I first got it I was wondering how fast it would go. I got it up to 110 and it pretty much stopped there, well I was slowly going faster but it probably would of took me another minute to get from 110 to 115 so I just let off. Now with the turbo I can pull strong all the way to red line in 5th, its about 130 I think, I'm not really paying to much attention to the spedo at that speed. I have a torson but I'm to lazy to look up my gear ratio so I'm not sure what it is.
thegizzman is offline   Reply With Quote
Old 03-04-2009, 01:32 AM   #6
Junior Member
 
Join Date: Sep 2008
Posts: 218
Total Cats: 0
Default

Blocking off the airflow at the front hurts ground clearance (obviously), but it solves the floaty problem pretty convincingly IMO. Emilio knows 1000x more about this area than me though. I'm basically copying his setup one step at a time.
JimAtFSU is offline   Reply With Quote
Old 03-04-2009, 04:10 AM   #7
Junior Member
 
Join Date: Dec 2006
Posts: 209
Total Cats: -1
Default

I maxed out the gears in mine. A little passed 145. It felt surprisingly stable when I did it too. Though I had a pretty decent suspension set-up.
ak47bravo is offline   Reply With Quote
Old 03-04-2009, 04:24 AM   #8
Elite Member
iTrader: (15)
 
Join Date: Sep 2007
Location: Incline Village, NV
Posts: 2,073
Total Cats: 5
Default

i can do 130 at thunderhill raceway on the front straight, im not quite sure i want to go much faster in a miata.

That's with a 6 speed & 3.9 diff.
thesnowboarder is offline   Reply With Quote
Old 03-04-2009, 05:48 AM   #9
Supporting Vendor
iTrader: (31)
 
Savington's Avatar
 
Join Date: Nov 2006
Location: Sunnyvale, CA
Posts: 14,372
Total Cats: 1,338
Default

I can (used to be able to?) get to the limiter in 6th in about 45 seconds.
Savington is offline   Reply With Quote
Old 03-04-2009, 07:56 AM   #10
Elite Member
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

Fastest I've had mine was an indicated 135. Who knows how accurate that was, either way I doubt I had much left. The C5 really started walking away at that point.
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 03-04-2009, 09:42 AM   #11
Junior Member
iTrader: (1)
 
Join Date: Jul 2006
Location: Colorado
Posts: 403
Total Cats: 2
Default

attaching my super spiffy spreadsheet that calculates such things. It is probably full of errors so use at your own risk, but my car can go 160.5814909 mph
Attached Files
File Type: xls SpeedInGears.xls (31.0 KB, 123 views)
Chris Swearingen is offline   Reply With Quote
Old 03-04-2009, 10:13 AM   #12
Newb
 
Join Date: Mar 2006
Posts: 27
Total Cats: 0
Default

Gave a heart attack to a 911 owner once when I was on his tail until 210km/hre... then the fun ended and he pulled away :(
Skittles is offline   Reply With Quote
Old 03-04-2009, 10:26 AM   #13
Elite Member
iTrader: (17)
 
Join Date: Aug 2007
Location: Fort Myers, FL
Posts: 2,791
Total Cats: 130
Default

I've found Flyin Miata's gear calculator to be quite helpful. Flyin' Miata : Technical info : Gearing calculator

My speedometer reads dead on after I swapped the 4.30s gears for 4.10s, apparently it read about 5% fast originally. I'm sure my car could make it to 147 (redline in 5th), but I have little desire to take it there.
pdexta is offline   Reply With Quote
Old 03-04-2009, 10:57 AM   #14
Senior Member
iTrader: (5)
 
Join Date: Jan 2008
Location: Central, TX / Bay area, CA
Posts: 1,272
Total Cats: 3
Default

Ive done almost 140 at T hill, don't know what RPM though. The big scoop seemed to make the front of my car really stable, no problems at all, however my brake bias made the rear float right before turn in, that was sketchy.
Gotpsi? is offline   Reply With Quote
Old 03-04-2009, 11:03 AM   #15
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,908
Total Cats: 1,793
Default

as long as I'm faster by the next braking zone, im happy.
Braineack is offline   Reply With Quote
Old 03-04-2009, 02:42 PM   #16
Guest
iTrader: (1)
 
ray_sir_6's Avatar
 
Join Date: Dec 2006
Location: DFW, TX
Posts: 714
Total Cats: 0
Default

I got up to 7000rpm a few times in 5th with 160-170whp. With the stock 4.3 rear.

I got it over 130 a week ago, losing to a modded 06 Stang GT.
ray_sir_6 is offline   Reply With Quote
Old 03-04-2009, 03:15 PM   #17
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

137mph on my garmin last weekend playing with a gtr. lol
hustler is offline   Reply With Quote
Old 03-04-2009, 03:15 PM   #18
Tour de Franzia
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by ray_sir_6 View Post
I got up to 7000rpm a few times in 5th with 160-170whp. With the stock 4.3 rear.

I got it over 130 a week ago, losing to a modded 06 Stang GT.
isn't 130mph your cruising speed?
lol, what happened to your 4.10?

Last edited by hustler; 03-04-2009 at 03:45 PM.
hustler is offline   Reply With Quote
Old 03-04-2009, 04:04 PM   #19
Elite Member
iTrader: (8)
 
Join Date: Oct 2007
Location: Dallas
Posts: 1,841
Total Cats: 0
Default

With 430 gears I can only hit about 127 and I'm out of RPM's.

I would'nt want to go any faster. The car gets squirrly. If yo9u want me to do over a 130 I need a Racebike.
I've hit 189 on a ZX10R. It probably would of done 195 but the timming pulled back.
Toddcod is offline   Reply With Quote
Old 03-04-2009, 05:07 PM   #20
Elite Member
iTrader: (9)
 
Join Date: Sep 2008
Location: Livonia, Michigan
Posts: 5,684
Total Cats: 10
Default

My NA starts to run out of breath passing the 110ish then i run out of road O_o or some ******* assumes that the left lane is for cruisisn and gets in front of me
buffon01 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
1994 Spec Miata Race Car SM/SM2/SSM For Sale Quinn Cars for sale/trade 6 10-23-2016 08:58 AM
LucaCarMods's Boosted Dutch Miata Build! LucaCarMods Build Threads 11 02-14-2016 07:13 AM
Nuke Mars! Joe Perez Current Events, News, Politics 8 09-30-2015 05:41 PM
WTB HPDE miata - Texas Voltwings Cars for sale/trade 0 09-27-2015 07:40 PM


Thread Tools

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 04:39 PM.