Notices

Drag racing tonight - two questions

Thread Tools
 
Search this Thread
 
Old May 11, 2016 | 01:56 PM
  #21  
sonofthehill's Avatar
Elite Member
iTrader: (1)
 
Joined: Apr 2014
Posts: 3,199
Total Cats: 591
From: SF Bay Area, CA
Default

Oh and I wouldn't bring a dog that wasn't say, used to going to the gun range. They won't be happy unless they are used to sudden loud noises.
Old May 11, 2016 | 02:37 PM
  #22  
skidude's Avatar
Thread Starter
Elite Member
iTrader: (3)
 
Joined: Apr 2008
Posts: 2,023
Total Cats: 19
From: Outside Portland Maine
Default

What is a dial-in time?
Old May 11, 2016 | 02:40 PM
  #23  
18psi's Avatar
VladiTuned
iTrader: (76)
 
Joined: Apr 2008
Posts: 35,821
Total Cats: 3,482
Default

the time you.........dial in

the time you hope to run
Old May 11, 2016 | 05:58 PM
  #24  
m2cupcar's Avatar
Elite Member
iTrader: (5)
 
Joined: Jan 2005
Posts: 7,486
Total Cats: 372
From: Atlanta
Default

pdexta is a shift master- more Miata drag racing video for inspiration:

Old May 11, 2016 | 07:12 PM
  #25  
pdexta's Avatar
Elite Member
iTrader: (17)
 
Joined: Aug 2007
Posts: 2,954
Total Cats: 184
From: Knoxville, TN
Default

Originally Posted by m2cupcar
pdexta is a shift master
Lol, thanks. Maybe you missed this thread though? https://www.miataturbo.net/suspensio...ost-4th-88041/
Old May 12, 2016 | 09:08 AM
  #26  
m2cupcar's Avatar
Elite Member
iTrader: (5)
 
Joined: Jan 2005
Posts: 7,486
Total Cats: 372
From: Atlanta
Default

bro. mechanical empathy has no place in drag racing.
Attached Thumbnails Drag racing tonight - two questions-80-vin_c561a04a79cad96d6823f716e3de74e5d87a898c.jpg  
Old May 12, 2016 | 10:10 AM
  #27  
Braineack's Avatar
Boost Czar
iTrader: (62)
 
Joined: May 2005
Posts: 80,552
Total Cats: 4,368
From: Chantilly, VA
Default

hey... so like results?
Old May 12, 2016 | 10:16 AM
  #28  
18psi's Avatar
VladiTuned
iTrader: (76)
 
Joined: Apr 2008
Posts: 35,821
Total Cats: 3,482
Default

his dog is uploading the videos now
Old May 12, 2016 | 12:22 PM
  #29  
skidude's Avatar
Thread Starter
Elite Member
iTrader: (3)
 
Joined: Apr 2008
Posts: 2,023
Total Cats: 19
From: Outside Portland Maine
Default

I didn't do as well as I'd hoped. No danger of getting kicked out last night.

I botched a couple of the launches, but a couple others seemed pretty decent. I'm sure I left quite a bit of time on the table just because I'm not very good, but I also don't think my car is as fast as it should be.

Can anybody give me any tips from looking at the slips?
Attached Thumbnails Drag racing tonight - two questions-dragtimeslipsmay2016.jpg  
Old May 12, 2016 | 12:24 PM
  #30  
aidandj's Avatar
SADFab Destructive Testing Engineer
iTrader: (5)
 
Joined: Apr 2014
Posts: 18,643
Total Cats: 1,870
From: Beaverton, USA
Default

How much does the car weigh? I really only look at MPH because ET is too inconsistent for most drivers in Miata.

Unless your car is a pig you just need more power.

Those ETs aren't horrible for that MPH.
Old May 12, 2016 | 12:27 PM
  #31  
thumpetto007's Avatar
Elite Member
iTrader: (15)
 
Joined: Sep 2010
Posts: 2,041
Total Cats: -117
Default

do you have launch control enabled and the rpm dialed in? It only took a few launches to make a huge difference. Not having to worry about the throttle makes it much easier to have the clutch perfect for a no bog launch.

Do you have flat foot shifting enabled? I dropped over a tenth of a second per shift with FFS!

Are you using M/T drag tires, or some other good drag racing tire? You can go from spinning all of first, second and third to hooking in first, and snapping axles.

also, being in "the groove" of the strip usually helps traction.
Old May 12, 2016 | 12:32 PM
  #32  
skidude's Avatar
Thread Starter
Elite Member
iTrader: (3)
 
Joined: Apr 2008
Posts: 2,023
Total Cats: 19
From: Outside Portland Maine
Default

Originally Posted by aidandj
How much does the car weigh? I really only look at MPH because ET is too inconsistent for most drivers in Miata.

Unless your car is a pig you just need more power.

Those ETs aren't horrible for that MPH.
I've never weighed the car, but it's an NB with a full interior, air conditioning, etc. I didn't even take the spare tire out because there wasn't anywhere to put while I was running. It's probably about as heavy as they came until the NC. Next time I go, I'll leave the spare tire and everything at home. I was almost out of gas, though, so that saved a few pounds I'm sure.

Can my car be a pig AND I need more power?? I think that's the situation.
Old May 12, 2016 | 12:34 PM
  #33  
skidude's Avatar
Thread Starter
Elite Member
iTrader: (3)
 
Joined: Apr 2008
Posts: 2,023
Total Cats: 19
From: Outside Portland Maine
Default

Originally Posted by thumpetto007
do you have launch control enabled and the rpm dialed in? It only took a few launches to make a huge difference. Not having to worry about the throttle makes it much easier to have the clutch perfect for a no bog launch.

Do you have flat foot shifting enabled? I dropped over a tenth of a second per shift with FFS!

Are you using M/T drag tires, or some other good drag racing tire? You can go from spinning all of first, second and third to hooking in first, and snapping axles.

also, being in "the groove" of the strip usually helps traction.
No to all of those things. The second and fifth runs I really didn't spin much at all. Maybe a little bit in first gear, but not at all in the rest. The tires are brand new Dunlop Star Specs.
Old May 12, 2016 | 12:50 PM
  #34  
sonofthehill's Avatar
Elite Member
iTrader: (1)
 
Joined: Apr 2014
Posts: 3,199
Total Cats: 591
From: SF Bay Area, CA
Default

My car is a pig and I am running crappy toyo rain tires, no launch control or flat shift, I usually lose a tiny bit of traction at the end of first. Being in the groove makes a ton of difference, when you shift makes a difference too. I found about 65 to 6600 was fastest in my car.
My best 60' time was 2.048 my worst was 2.535, sounds like you just need to practice a bit and figure out when to shift.
Old May 12, 2016 | 12:55 PM
  #35  
18psi's Avatar
VladiTuned
iTrader: (76)
 
Joined: Apr 2008
Posts: 35,821
Total Cats: 3,482
Default

your trap indicates you're making about 200-210whp
Old May 12, 2016 | 01:02 PM
  #36  
sonofthehill's Avatar
Elite Member
iTrader: (1)
 
Joined: Apr 2014
Posts: 3,199
Total Cats: 591
From: SF Bay Area, CA
Default

By all means, moar powah!
I usually trap close to 99 or 100 even on a crappy run with a headwind.
Old May 12, 2016 | 01:05 PM
  #37  
skidude's Avatar
Thread Starter
Elite Member
iTrader: (3)
 
Joined: Apr 2008
Posts: 2,023
Total Cats: 19
From: Outside Portland Maine
Default

I need to get to a dyno. I want to be at 250, but I don't want to break anything to get there.
Old May 12, 2016 | 01:11 PM
  #38  
18psi's Avatar
VladiTuned
iTrader: (76)
 
Joined: Apr 2008
Posts: 35,821
Total Cats: 3,482
Default

get your trap speed to 107-109 and you're around 250
Old May 12, 2016 | 01:21 PM
  #39  
skidude's Avatar
Thread Starter
Elite Member
iTrader: (3)
 
Joined: Apr 2008
Posts: 2,023
Total Cats: 19
From: Outside Portland Maine
Default

How accurate is Virtual Dyno? If I find a flat stretch of road and do some 3rd gear pulls, would that give me reliable information?
Old May 12, 2016 | 01:25 PM
  #40  
pdexta's Avatar
Elite Member
iTrader: (17)
 
Joined: Aug 2007
Posts: 2,954
Total Cats: 184
From: Knoxville, TN
Default

All you need is more power. At your power no-lift shift, launch control, a better tire seem unnecessary to me.

I would think with those times you're probably a touch under 200whp. Add another 50whp to it and you'll drop way more time than any other little thing you could change.



All times are GMT -4. The time now is 08:56 AM.