Things to know before you DYNO? - LS1TECH

Go Back   LS1TECH > LS1-LS2-LS3-LS6-LS7 PERFORMANCE > Dynamometer Results & Comparisons
Sign in using an external account
Register Forgot Password?
Search


Dynamometer Results & Comparisons
Dyno Records | Dyno Discussion | Dyno Wars


Things to know before you DYNO?

Reply
 
Thread Tools Search this Thread
Old 02-21-2011, 08:01 PM   #1
TECH Veteran
 
bayer-z28's Avatar
 
Trader Rating: 14
Join Date: Apr 2005
Location: N. Falmouth MA
Posts: 4,088
Default Things to know before you DYNO?

I have learned a couple things in my past two tunes and I was wondering if there is anything else? TSP only really tuned my car for peak power and there was a nasty lean spike at the bottom of the graph which in turn was the reason for my TQ being rather low. (372rw wit LS6 heads and PatG Tq cam.)

-I don't want to see a lean spike with the tune
-I want a full readout from start to finish. Not clipped from 3500rpm to redline.
-Learned to be VERY specific about what I am looking for and what the cam is designed for.
-What mapping/graph? SAE? Standard? What is preferred?

Correct me if I'm wrong.
__________________
2000 Z/28; H/c/i/e/s/t/c 437/421 -SOLD :-(
2000 Silverado "Cam-Rado" 2500. 6.0, 4wd, auto, LS1 Cam, and some mild internal work.
2008 VW R32, #1511, DBP, aFe intake, flapper mod.
bayer-z28 is offline   Reply With Quote
Old 02-22-2011, 05:27 AM   #2
10 Second Club
 
Demonicbird00's Avatar
 
Trader Rating: 17
Join Date: Apr 2004
Location: Alloway,NJ
Posts: 2,352
Send a message via AIM to Demonicbird00
Default

were you dynoed at tsp? or mail order?
__________________
99 M3- NASA #181
00 TA Sold-H/C/I= 10.83 @ 130 1.58 493hp/424tq MD
www.fquick.com/Demonicbird00
Demonicbird00 is offline   Reply With Quote
Old 02-22-2011, 08:13 PM   #3
TECH Veteran
 
bayer-z28's Avatar
 
Trader Rating: 14
Join Date: Apr 2005
Location: N. Falmouth MA
Posts: 4,088
Default

^ At TSP.. Halloween day 2008. Had a good ride out there and back (NM - TX - NM.) Was almost worth the ride just to see some different scenery.
__________________
2000 Z/28; H/c/i/e/s/t/c 437/421 -SOLD :-(
2000 Silverado "Cam-Rado" 2500. 6.0, 4wd, auto, LS1 Cam, and some mild internal work.
2008 VW R32, #1511, DBP, aFe intake, flapper mod.
bayer-z28 is offline   Reply With Quote
Old 02-25-2011, 06:55 AM   #4
TECH Veteran
 
bayer-z28's Avatar
 
Trader Rating: 14
Join Date: Apr 2005
Location: N. Falmouth MA
Posts: 4,088
Default

Anyone else? What graph? SAE or Standard? And what are the differences?
__________________
2000 Z/28; H/c/i/e/s/t/c 437/421 -SOLD :-(
2000 Silverado "Cam-Rado" 2500. 6.0, 4wd, auto, LS1 Cam, and some mild internal work.
2008 VW R32, #1511, DBP, aFe intake, flapper mod.
bayer-z28 is offline   Reply With Quote
Old 02-25-2011, 07:37 AM   #5
TECH Apprentice
 
Trader Rating: 0
Join Date: Nov 2004
Location: Long Beach, Ka
Posts: 312
Default

Quote:
Originally Posted by bayer-z28 View Post
Anyone else? What graph? SAE or Standard? And what are the differences?
SAE correction factor is most common, standard correction factor will give you a tad higher readings (about 3% on the average, I believe), and uncorrected will generally give you higher readings that that. If you do a search under SAE correction factoring on this forum, you will find some very good info from some very knowledgeable people.
Correction factoring won't be as important for tuning as it would be for dyno #'s.
HTH
__________________
TIA: Gary Wells/TOLTK
'09 Cad CTS-V, 3K miles
'87 Turbo-T Buick, 29k miles
Garage prostitutes to the max
Gary Wells is offline   Reply With Quote
Old 02-26-2011, 08:06 AM   #6
TECH Senior Member
 
Ragtop 99's Avatar
 
Trader Rating: 7
Join Date: Nov 2001
Location: Bethesda, MD
Posts: 9,492
Default

corrected is useful for comparing your results to others.

They can also printout your data in a table format, every 100 or 200 rpms. It is handy to have when looking at shift points.
__________________
2008 Atomic Orange Coupe 3LT, CC3, Z51 M6
LG Pros with cats, Vararam, 160 T-stat, DTE 3.90s, Elite tunnel plate, Pfadt JOC Stage I, catch can, LG Wheels with 275 / 325 Invos MGW Shifter, EPS 226/230 115 cam, Peak ported IM & TB, HPT.
Gone but not forgotten:
2002 Camaro SS Droptop. cam, gears, etc.
11 sec 99 Z28 Vert, RIP.
Ragtop 99 is offline   Reply With Quote
Old 02-26-2011, 01:15 PM   #7
10 Second Club
 
Detoxx03's Avatar
 
Trader Rating: 12
Join Date: Jan 2007
Location: Woodward Avenue
Posts: 6,679
Default

I always use the SAE correction factor
__________________

https://www.facebook.com/DetoxxAtomic
A Futral Motorsports Creation
Detoxx03 is online now   Reply With Quote
Old 02-26-2011, 01:15 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply


Tags
102f, car, catch, correction, dyno, empty, factor, lnow, sae, things, tune


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 On
Refbacks are Off


 

All times are GMT -5. The time now is 11:52 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - Terms of Service - JOBS
Emails & Contact Details