Dyno results and altitude question - MustangForums.com


Go Back   MustangForums.com > Ford Mustang Tech > 2005-2014 Mustangs > GT S197 General Discussion > 4.6L V8 Technical Discussions
Search


4.6L V8 Technical Discussions Any questions about engine, transmission, or gearing can be asked here!

Dyno results and altitude question

Reply
 
 
 
Thread Tools Search this Thread
Old 04-14-2013, 07:39 PM   #1
Ricardo
3rd Gear Member
 
Ricardo's Avatar
 
Join Date: Oct 2009
Vehicle: '07 Mustang GT
Location: Utah
Posts: 731
Default Dyno results and altitude question

Here's my results from today. This was with Brenspeed 91 tune, Bassani x-pipe & axle-backs, and JLT intake. People told me my 4.10s gave a false low.
My question is looking at the sheet, did the Dynojet correct for altitude here in Salt Lake? Looks like pressure was really low. Forgot to ask before I left. How's my 4.6 running for being so unmodified?
I appreciate any input, please school me!
Click the image to open in full size.

Last edited by Ricardo; 04-14-2013 at 07:41 PM.
Ricardo is offline   Reply With Quote
Old 04-15-2013, 12:32 PM   #2
ski
4th Gear Member
 
Join Date: Mar 2006
Location:
Posts: 1,468
Default

The "CF: SAE" in the upper right of the graph indicates the dyno numbers are corrected for ambient temp, humidity, altitude, etc.

Stock manual S197 GT's normally dyno anywhere from 255-265 rwhp, and autos anywhere from 240-250 rwhp. Does your ride feel faster with the mods?
__________________
2005 Mustang GT/Manual/C&L Street CAI/Bama 93 Race Tune
ski is offline   Reply With Quote
Old 04-15-2013, 04:09 PM   #3
Ricardo
3rd Gear Member
 
Ricardo's Avatar
 
Join Date: Oct 2009
Vehicle: '07 Mustang GT
Location: Utah
Posts: 731
Default

Ok, thanks for the info!
The dyno was a new experience for me. It looks like the mods made a good difference, yeah it is night and day from a stock GT. Longtubes are next so I can be useful here and post up what difference they made using the same dyno.
Ricardo is offline   Reply With Quote
Old 04-17-2013, 12:06 PM   #4
ski
4th Gear Member
 
Join Date: Mar 2006
Location:
Posts: 1,468
Default

You're welcome.
A CAI/tune definitely made a huge difference with my ride. And that's where it counts.
It will be interesting to see how much hp the LT's add.
__________________
2005 Mustang GT/Manual/C&L Street CAI/Bama 93 Race Tune
ski is offline   Reply With Quote
Old 04-17-2013, 04:59 PM   #5
JCON
5th Gear Member
 
JCON's Avatar
 
Join Date: Jul 2009
Vehicle: 2005 Mustang GT Convertible
Location: Delaware
Posts: 2,216
Default

For having the mods you have, I think it is low.

I made 270 rwhp and 292rwtq with only axle backs (no real gain, just noise) and 4.10 gears (I didn't tell them I had gears)
__________________
Like Mid-Atlantic Mustangs on Facebook
Mid-Atlantic Mustang's YouTube Channel

270rwhp 292rwtq - 4/21/12 - Stock 87 octane + 4.10's
283rwhp 296rwtq - 4/20/13 - Exhaust 87 octane + 4.10's
330rwhp 336rwtq - 4/19/14 - Intake, CMDP's, UDP's, LT's, O/R ProChamber, 4.10's + 93 tune
JCON is offline   Reply With Quote
Old 04-17-2013, 07:24 PM   #6
Ricardo
3rd Gear Member
 
Ricardo's Avatar
 
Join Date: Oct 2009
Vehicle: '07 Mustang GT
Location: Utah
Posts: 731
Default

Yeah I agree it does seem low.

I was disappointed because my buddy made 317/315 with same mods and BBK longtubes with Hotrod cams. His dyno run was back in Tx @ 413 ft altitude. Thats why I was wondering if this dyno figured in the altitude or not.
Ricardo is offline   Reply With Quote
Old 04-17-2013, 11:51 PM   #7
JCON
5th Gear Member
 
JCON's Avatar
 
Join Date: Jul 2009
Vehicle: 2005 Mustang GT Convertible
Location: Delaware
Posts: 2,216
Default

Americanmuscle.com (and Ford) say that a car with longtubes will see a 30rwhp gain from the Hot Rod Cams.

Here was my dyno sheet:
Click the image to open in full size.

A friend of mine made 285rwhp and 297rwtq with 4.10's, an axle back, intake, and 91 tune.His intake and tune only got him 15 rwhp and 5rwtq more than me (admittedly, we feel his dyno fell short of expectations).

I know of another local guy who said his GT with full exhaust, intake, tune, under drive pulleys, hot rod cams, and charge motion delete plates made about 335 rwhp. That's a lot of money but he picked up a total of about 65rwhp (Don't know the torque).

The key in looking at the dynos with all the parts on is not necessarily what the max power is but how long it is holding a higher power level. I would rather hold 290rwtq for 3,500rpms than peak at 300rwtq for 500 rpms.

If I can get my car on the dyno this weekend, I will post up what I made with my current set up which is Mac longtubes, offroad Mac ProChamber, and Bassani axle back with 4.10 gears.
__________________
Like Mid-Atlantic Mustangs on Facebook
Mid-Atlantic Mustang's YouTube Channel

270rwhp 292rwtq - 4/21/12 - Stock 87 octane + 4.10's
283rwhp 296rwtq - 4/20/13 - Exhaust 87 octane + 4.10's
330rwhp 336rwtq - 4/19/14 - Intake, CMDP's, UDP's, LT's, O/R ProChamber, 4.10's + 93 tune

Last edited by JCON; 04-18-2013 at 12:14 AM.
JCON is offline   Reply With Quote
Old 04-18-2013, 01:04 PM   #8
Ricardo
3rd Gear Member
 
Ricardo's Avatar
 
Join Date: Oct 2009
Vehicle: '07 Mustang GT
Location: Utah
Posts: 731
Default

Thanks for all the advice JCON. One thing I'm doing today is lowering my limiter since I stop making power around 6200.
Ricardo is offline   Reply With Quote
Old 04-19-2013, 02:09 AM   #9
808muscle
5th Gear Member
 
808muscle's Avatar
 
Join Date: Oct 2009
Vehicle: 2006 Mustang GT
Location: Maui
Posts: 4,745
Default

Dyno results vary big time. Take you car to the track for real world results.
__________________


06 Satin Silver GT - Auto...ROUSH M90 PI 3k Stall, CAI, Afco Dual Fan HE, 4.10s,Trutrac, Detroit Rockers, Moroso, DSS DS, TCI Rachet Shifter, PA Deep Pan, Eibach Handling, FR P Springs, Strange Shocks/Struts, BMR, SS Lines/ EBC Rotors w/Reds, Mickey Thompson SC5, Nitto 255/305, Corbeau A4, Pypes LT's/H-Pipe, MBRP Resonators, Borla

2015 Sportsman Champion.
808muscle is offline   Reply With Quote
Old 04-19-2013, 08:33 AM   #10
Ricardo
3rd Gear Member
 
Ricardo's Avatar
 
Join Date: Oct 2009
Vehicle: '07 Mustang GT
Location: Utah
Posts: 731
Default

I agree, it's easy to get lost in dyno numbers.
I was reading up that there are so many things that can change numbers on a dyno that you just have to use it to see what you make power with so I'll just be happy with how fast my car goes instead of numbers. And I'll use the dyno to make sure what I do is working.

Thanks 808!
Ricardo is offline   Reply With Quote

 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Steeda 555-8241 (Linear) Competition Springs. Gene K S197 Handling Section 1 10-21-2015 11:37 PM
2013 Mustang GT vs 2014 SS Sedan heslekrants Street/Strip 11 09-23-2015 04:02 PM
Question about Valve Cover Breather Ipaman 5.0L (1979-1995) Mustang 12 09-22-2015 07:01 AM
Steeda & Nitto Tire Testing NT555 G2 - Great Photos Inside!! tj@steeda Steeda Autosports 0 09-08-2015 11:50 AM
Evolution Performance Car Show/Dyno Day 9/12/15 The01Cav North East 0 09-05-2015 03:39 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

Forum Jump

 

All times are GMT -5. The time now is 09:27 PM.



This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company