Not happy w/my Dyno numbers
03-06-2006, 07:32 PM
#1
Thread Starter
Join Date: Feb 2006
Posts: 44
Not happy w/my Dyno numbers
Last week I scheduled an appointment with a shop in my area for a simple dyno run ($85 for 3 pulls) just to get some numbers. The shop has a Mustang Dynamometer, and the Tech guy seemed knowledgeable enough. Anyhow, baseline pull was 234.5 HP [:'(], so I'm thinkin "what tha..", now I know from just reading past post on this forum that a comparable 05 with my performance parts should be putting down ~285-295, correct me if I'm wrong. Well he plays with the fuel mixture using my predator (12.6 F/A mix.) and get a final number of 244.4HP and 233.4 TQ. Am I missing something here besides more HP???[>:][>:]
03-06-2006, 07:36 PM
#2
6th Gear Member
Join Date: Dec 2003
Location: cape giradeau,mo
Posts: 8,872
RE: Not happy w/my Dyno numbers
that's why
ORIGINAL: FIREMNSGT
Last week I scheduled an appointment with a shop in my area for a simple dyno run ($85 for 3 pulls) just to get some numbers. [IMG]The shop has a Mustang Dynamo,meter [/IMG] and the Tech guy seemed knowledgeable enough. Anyhow, baseline pull was 234.5 HP [:'(], so I'm thinkin "what tha..", now I know from just reading past post on this forum that a comparable 05 with my performance parts should be putting down ~285-295, correct me if I'm wrong. Well he plays with the fuel mixture using my predator (12.6 F/A mix.) and get a final number of 244.4HP and 233.4 TQ. Am I missing something here besides more HP???[>:][>:]
Last week I scheduled an appointment with a shop in my area for a simple dyno run ($85 for 3 pulls) just to get some numbers. [IMG]The shop has a Mustang Dynamo,meter [/IMG] and the Tech guy seemed knowledgeable enough. Anyhow, baseline pull was 234.5 HP [:'(], so I'm thinkin "what tha..", now I know from just reading past post on this forum that a comparable 05 with my performance parts should be putting down ~285-295, correct me if I'm wrong. Well he plays with the fuel mixture using my predator (12.6 F/A mix.) and get a final number of 244.4HP and 233.4 TQ. Am I missing something here besides more HP???[>:][>:]
03-06-2006, 08:12 PM
#4
4th Gear Member
Join Date: Jul 2005
Location: Tampa, FL
Posts: 1,068
RE: Not happy w/my Dyno numbers
ORIGINAL: grabbem88
that's why
that's why
ORIGINAL: FIREMNSGT
Last week I scheduled an appointment with a shop in my area for a simple dyno run ($85 for 3 pulls) just to get some numbers. [IMG]The shop has a Mustang Dynamo,meter [/IMG] and the Tech guy seemed knowledgeable enough. Anyhow, baseline pull was 234.5 HP [:'(], so I'm thinkin "what tha..", now I know from just reading past post on this forum that a comparable 05 with my performance parts should be putting down ~285-295, correct me if I'm wrong. Well he plays with the fuel mixture using my predator (12.6 F/A mix.) and get a final number of 244.4HP and 233.4 TQ. Am I missing something here besides more HP???[>:][>:]
Last week I scheduled an appointment with a shop in my area for a simple dyno run ($85 for 3 pulls) just to get some numbers. [IMG]The shop has a Mustang Dynamo,meter [/IMG] and the Tech guy seemed knowledgeable enough. Anyhow, baseline pull was 234.5 HP [:'(], so I'm thinkin "what tha..", now I know from just reading past post on this forum that a comparable 05 with my performance parts should be putting down ~285-295, correct me if I'm wrong. Well he plays with the fuel mixture using my predator (12.6 F/A mix.) and get a final number of 244.4HP and 233.4 TQ. Am I missing something here besides more HP???[>:][>:]
thanks
03-06-2006, 10:11 PM
#9
2nd Gear Member
Join Date: Apr 2005
Location:
Posts: 475
RE: Not happy w/my Dyno numbers
ORIGINAL: FIREMNSGT
So most people use Dyno jet??
So most people use Dyno jet??
With a mustang dynameter, you have to add 3% per 1000 ft. above sea level your at,
I'm at 3500 ft, my dyno on a mustang was 239.8 hp, add 10.5% to that (3% X 3500) = 265 rwhp.
According to your profile, you're in Indy, which is only 800 or so ft. above sealevel, so 244.4 add .24% = 250 rwhp, so yeah, it's pretty low, are you sure the guy had the right axle gear ratio typed into the dyno?
03-06-2006, 10:14 PM
#10
3rd Gear Member
Join Date: Feb 2006
Location: Fenton, MO.
Posts: 645
RE: Not happy w/my Dyno numbers
Our cars are pretty close in mods.
When you installed the C&L I am guessing that you also loaded the C&L tune from Diablo, if not you need too.
You may notice that the A/F is in the 13.+ range this is not a good thing. You want the A/F to be in the mid to low 12's.
There is 2 ways to do this (lean the A/F out) with the predator. Use the WOT setting for different RPM ranges or perform a "Global Spark Advance" of +4 deg.
On my GT we leaned the A/F out as far as we could with the WOT adjustments and still couldnt get the A/F down into the low to mid 12's. Using the "GSA" set to +4 we got her down to where the GT runs like a bat of out hell in all gears. No detentation detected. No "Check Light"
When you get the A/F adjusted properly.........hang on........its a wild ride.
Hope this helps
When you installed the C&L I am guessing that you also loaded the C&L tune from Diablo, if not you need too.
You may notice that the A/F is in the 13.+ range this is not a good thing. You want the A/F to be in the mid to low 12's.
There is 2 ways to do this (lean the A/F out) with the predator. Use the WOT setting for different RPM ranges or perform a "Global Spark Advance" of +4 deg.
On my GT we leaned the A/F out as far as we could with the WOT adjustments and still couldnt get the A/F down into the low to mid 12's. Using the "GSA" set to +4 we got her down to where the GT runs like a bat of out hell in all gears. No detentation detected. No "Check Light"
When you get the A/F adjusted properly.........hang on........its a wild ride.
Hope this helps