Advertisement
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Home Who's Online Today's Posts HP Calculator CompD Gift Shop Mark Forums Read
Go Back   Competition Diesel.Com - Bringing The BEST Together > The Starting Line > Dyno Forum
Register Members List Timeslips EFI Live Library Invite Your Friends FAQ Calendar Mark Forums Read

Dyno Forum Discuss Dyno Tuning, and Post those Graphs Here!

Closed Thread
 
Thread Tools
Old 03-03-2008, 02:09 PM   #1
Abrannan19
 
Abrannan19's Avatar

Name: Abrannan19
Title: NOBAMA 09-12
Status: Not Here
Join Date: Dec 2006
Location: Jacksonville,FL
Member`s Gallery
Posts: 3,034
horsepower/torque questions

this is pretty much about the 6.0..this is not started to say one tuner is better then the other so please dont turn it into that..

My question is how can diffrent trucks that are almost the same configuration SRW F250 F350 close to same tires size make diffrent numbers..

For instance:

Bryan made 790 hp and 1286 lb ft.

Frankie made 757 hp and 1192 lb ft. Doug made 66 less hp but 199 more lb ft then Frankie

Doug made 691hp and 1391 lb ft. Doug made 99 less hp but 105 more lb ft the Bryan

why the difference in numbers for torque? ONCE AGAIN..I am not doubting or questioning..its just something that has stumped me..anybody know?
__________________
Adam Brannan

visit us @ www.firstcoastdieselperformance.com
Email: Abrannan19@aol.com
Phone: (904)-813-5067




Click the image to open in full size.
 
Old 03-03-2008, 02:20 PM   #2
Six_leaker
 
Six_leaker's Avatar

Name: Six_leaker
Title: Too Much Time
Status: Not Here
Join Date: Mar 2007
Member`s Gallery
Posts: 477
It's all in how efficient the tune is. It’s Tuning Timing & air flow will make a difference.

I can tell you right now without looking at Doug's dyno sheet that his TQ #'s dropped off to sharp where the other 2 held there TQ a little longer.

If you ever wonder HP & TQ cross over at close to 5200-5300 RPM's after that HP will be above TQ.
__________________

Warren Diesel
1300hp fuel only 1758hp spray 6.0l
 
Old 03-03-2008, 02:23 PM   #3
HushpowerGuy
 
HushpowerGuy's Avatar

Name: HushpowerGuy
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Feb 2008
Location: Beautiful Athol, Idaho
Member`s Gallery
Posts: 224
Your question is the very reason that we, Hushpower and Flowmaster, do not publish our own dyno #s. I can put ten similar trucks on the dyno and make ten different #s. It can come down to diff temp, trans temp, tire temp, ...... basically everything. Tire pressure is also a big one on the dyno...
__________________
Phil
'01 Dirtymax, Edge, Hush 4", 6" Procomp, 35" MT MTZs
'85 CJ-7, 550hp, 200 shot NOS, 39" Krawlers, dual Hushs...
'94 Dodge Wrecker, 12Vstocker, 4" Hush
'98 INT. 4700 Rollback, 7.3, Gutless, 4" Hush
'08 Dodge Dually CCLB, 6.7, Stock and NEW
'78 Chevy, 8" lift, 406, show only!
 
Old 03-03-2008, 02:28 PM   #4
haloman
 
haloman's Avatar

Name: haloman
Title: Too Much Time
Status: Not Here
Join Date: Aug 2007
Member`s Gallery
Posts: 7,876
Did they all dyno on the same dyno same day?
 
Old 03-03-2008, 02:36 PM   #5
HushpowerGuy
 
HushpowerGuy's Avatar

Name: HushpowerGuy
Title: Comp Diesel Sponsor
Status: Not Here
Join Date: Feb 2008
Location: Beautiful Athol, Idaho
Member`s Gallery
Posts: 224
yepper.
It is hard enough to make a completely repetable run with one truck... to do it with multiples is a huge pain in the *ss.
There are just too many variables.
__________________
Phil
'01 Dirtymax, Edge, Hush 4", 6" Procomp, 35" MT MTZs
'85 CJ-7, 550hp, 200 shot NOS, 39" Krawlers, dual Hushs...
'94 Dodge Wrecker, 12Vstocker, 4" Hush
'98 INT. 4700 Rollback, 7.3, Gutless, 4" Hush
'08 Dodge Dually CCLB, 6.7, Stock and NEW
'78 Chevy, 8" lift, 406, show only!
 
Old 03-03-2008, 02:47 PM   #6
alexlaughlin

Name: alexlaughlin
Title: Cool
Status: Not Here
Join Date: Jan 2008
Location: stephenville, tx
Member`s Gallery
Posts: 605
Every truck is different. Even our module that the customer cant change, all get different dyno #'s. Its just different trucks like different things...
 
Closed Thread

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

Forum Jump


All times are GMT -5. The time now is 11:22 AM.

 


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2006 - 2024, CompetitionDiesel.com
all information found on this site is property of www.competitiondiesel.com