Measure actual engine torque output! - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


Engine Performance This section is for discussion on all engine building related questions.
Sponsored by:
Sponsored by:

Reply
 
 
 
LinkBack Thread Tools Search this Thread
Old 11-02-2011, 12:52 PM   #1
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default Measure actual engine torque output!

JasonC SBB is offline   Reply With Quote
Old 11-02-2011, 01:20 PM   #2
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,165
Total Cats: 2,573
Default

Whats the point of paying for that crap then messing with installing it when there are tons of programs out there that will show you the cars power/torque and simulate a real dyno (and many are very accurate I must say)?
18psi is offline   Reply With Quote
Old 11-02-2011, 02:38 PM   #3
Elite Member
 
codrus's Avatar
 
Join Date: Mar 2007
Location: Santa Clara, CA
Posts: 3,875
Total Cats: 344
Default

Quote:
Originally Posted by 18psi View Post
Whats the point of paying for that crap then messing with installing it when there are tons of programs out there that will show you the cars power/torque and simulate a real dyno (and many are very accurate I must say)?
The difference between theory and practice is that, in theory, there is no difference between theory and practice.

--Ian
codrus is offline   Reply With Quote
Old 11-02-2011, 02:47 PM   #4
Elite Member
iTrader: (5)
 
Join Date: Dec 2010
Location: Raleigh, NC
Posts: 1,970
Total Cats: 49
Default

^unless the Theory is proven wrong. but then again, its no longer a theory anymore, haha.
Seefo is offline   Reply With Quote
Old 11-02-2011, 02:48 PM   #5
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago (Over two miles from Wrigley Field. Fuck the Cubs. Fuck them in their smarmy goat-hole.)
Posts: 26,315
Total Cats: 1,913
Default

Hmm.

$1,500 actually isn't all that bad, especially since it seems like it'd be relative easy to move between cars. Factor in the vehicle's service brakes, and assuming you have a long, empty stretch of road and a co-driver, you have a brake (load-bearing) dyno.
Joe Perez is offline   Reply With Quote
Old 11-02-2011, 03:54 PM   #6
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,037
Total Cats: 406
Default

Quote:
Originally Posted by Joe Perez View Post
Hmm.

$1,500 actually isn't all that bad, especially since it seems like it'd be relative easy to move between cars. Factor in the vehicle's service brakes, and assuming you have a long, empty stretch of road and a co-driver, you have a brake (load-bearing) dyno.
I wonder how much the liability insurance is.
y8s is offline   Reply With Quote
Old 11-02-2011, 03:57 PM   #7
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by Joe Perez View Post
Hmm.

$1,500 actually isn't all that bad, especially since it seems like it'd be relative easy to move between cars. Factor in the vehicle's service brakes, and assuming you have a long, empty stretch of road and a co-driver, you have a brake (load-bearing) dyno.
Figure each (real) dyno tuning session would be at least $200.
JasonC SBB is offline   Reply With Quote
Old 11-02-2011, 03:58 PM   #8
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

Quote:
Originally Posted by 18psi View Post
Whats the point of paying for that crap then messing with installing it when there are tons of programs out there that will show you the cars power/torque and simulate a real dyno (and many are very accurate I must say)?
They assume a perfectly flat road with 0 wind.
Do you have one?
JasonC SBB is offline   Reply With Quote
Old 11-02-2011, 03:59 PM   #9
Boost Pope
iTrader: (8)
 
Joe Perez's Avatar
 
Join Date: Sep 2005
Location: Chicago (Over two miles from Wrigley Field. Fuck the Cubs. Fuck them in their smarmy goat-hole.)
Posts: 26,315
Total Cats: 1,913
Default

Quote:
Originally Posted by JasonC SBB View Post
They assume a perfectly flat road with 0 wind.
Do you have one?
I have one, but it's usually blocked by large herds of perfectly spherical cows.
Joe Perez is offline   Reply With Quote
Old 11-02-2011, 04:04 PM   #10
Murderator
iTrader: (76)
 
18psi's Avatar
 
Join Date: Apr 2008
Posts: 36,165
Total Cats: 2,573
Default

Quote:
Originally Posted by JasonC SBB View Post
They assume a perfectly flat road with 0 wind.
Do you have one?
Fairly flat with a little wind will skew the numbers by no more than about 5hp/tq. I know I know, where then do you "draw the line", but IMO it gets you real close. At least close enough to help you tune quite a bit. I've been tinkering with these programs on Subarus/Evos for years now, and they're insanely accurate. Assuming you don't fudge the numbers or dyno off a cliff with 100mph tailwinds or something.
18psi is offline   Reply With Quote
Old 11-02-2011, 05:28 PM   #11
Elite Member
iTrader: (2)
 
triple88a's Avatar
 
Join Date: Apr 2006
Location: Chicago, IL
Posts: 9,131
Total Cats: 598
Default

Jason i'm assuming youre at SEMA?
triple88a is offline   Reply With Quote
Old 11-02-2011, 06:33 PM   #12
Elite Member
Thread Starter
 
Join Date: Jul 2005
Posts: 6,454
Total Cats: 80
Default

No, I read a post about it.

LOL @ Joe's spherical cows.
JasonC SBB is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Changing from 460cc to flow force 610cc in diypnp 90 Turbo MEGAsquirt 19 10-19-2015 04:23 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM


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 04:10 AM.