Auto, 4.10 gears dyno...

S

seattlegt

New Member

May 3, 2006

82

0

0

Jan 19, 2007

#1

• Jan 19, 2007

• #1

I dynoed my 05 automatic gt today in 3rd gear and got 262.8hp and 253lbs of tourqe. I have 4.10 gears, steeda pullies, flowmaster axle back and a Tunable induction CAI with a 91 octane tune. I am assuming I am losing a bit for the 4.10's being out back, but it's still a few ponies lower than I hoped. Anyone know about dynoing in 3rd or potential loss for dyno readings with lower gears out back?

 

bigcat

start with the upper hole, and if more traction is

May 1, 2005

3,015

1

79

7200 feet

Jan 19, 2007

#2

• Jan 19, 2007

• #2

was it a mustang dyno or dynojet dyno?

 

S

seattlegt

New Member

May 3, 2006

82

0

0

Jan 19, 2007

#3

• Jan 19, 2007

• #3

Dynojet

 

X

XStanger

Founding Member

Sep 1, 2002

383

0

16

Jan 19, 2007

#4

• Jan 19, 2007

• #4

3rd gear is not the correct gear. They should have dyno'd it in 4th with your auto, but it is not very easy.

 

Rock36

Member

Jan 1, 2006

76

0

6

Modesto, CA/Germany

Jan 20, 2007

#5

• Jan 20, 2007

• #5

+1 on the 3rd gear being the wrong gear..

Also, did you mean to type 253 ft-lbs of torque or 283 ft-lbs? Because with your set up your engine should have more peak torque than peak horsepower. This could also be because of the 3rd gear dyno.

You should only be loosing around 5 or 6 hp for the 4.10s.

 

S

seattlegt

New Member

May 3, 2006

82

0

0

Jan 20, 2007

#6

• Jan 20, 2007

• #6

Yes, only 253lbs which seemed really odd to me...

 

X

XStanger

Founding Member

Sep 1, 2002

383

0

16

Jan 21, 2007

#7

• Jan 21, 2007

• #7

seattlegt said:

Yes, only 253lbs which seemed really odd to me...

Click to expand...

Have it dyno'd somewhere else.

 

F

firemanken

New Member

Jan 25, 2006

46

0

0

Jan 21, 2007

#8

• Jan 21, 2007

• #8

i have very similiar add ons. my numbers are in my signature. it was on a dynojet in 4th gear.

 

APDPerformance

New Member

Nov 8, 2006

15

0

0

Philadelphia Area, Pennsylvania

Jan 22, 2007

#9

• Jan 22, 2007

• #9

Mustang dynos will read a little lower because of the load. The 4.10's are going to throw your numbers off anywhere from 5-10 horsepower. He should have pulled in 4th gear as mentioned above. That's what we test at here for Automatics.

Even on a Mustang Dyno that sounds awefuly low numbers for your supporting mod. Whos tune? What kind of dyno? What shop dyno'd it?

 

S

seattlegt

New Member

May 3, 2006

82

0

0

Jan 22, 2007

#10

• Jan 22, 2007

• #10

I dynoed it at Turbo Technologies in Tacoma. The tune is one that I got from the Tunable Induction gang when I got my intake. I'm thinking I need another dyno from another shop. Thanks for the tips everyone