Sponsored

My Whipple Stage 2 results on mustang dyno

pro 5.0

Well-Known Member
Joined
Feb 15, 2016
Threads
10
Messages
1,008
Reaction score
429
Location
Canada
Vehicle(s)
2019 Mustang GT
lol. Actually, I was very happy with how it was running and it felt very strong.

*I also took your advice and went down to a 3.625" pulley afterwards the same day and put down 724/564!
So you are saying that you picked up 82 rwhp with just a pulley change from a 3.750 down to a 3.625 ?
Sponsored

 
OP
OP
Kzanard

Kzanard

Active Member
Joined
Feb 16, 2016
Threads
5
Messages
44
Reaction score
18
Location
Boston
Vehicle(s)
2016 Mustang GT, 2015 4Runner TRD Pro
So you are saying that you picked up 82 rwhp with just a pulley change from a 3.750 down to a 3.625 ?
Yes and no. The latest shop found that I had one seating in Flight Control set wrong and it was cutting off on the top end (I forgot which one). When they changed the setting, I gained some on the top end.

In the attached dyno, it shows:
- Run 1: 3.75 with my original settings
- Run 2: 3.75 with revised setting
- Run 3: 3.625 with revised setting
G5305845_Run001-002-003.jpg
 

pro 5.0

Well-Known Member
Joined
Feb 15, 2016
Threads
10
Messages
1,008
Reaction score
429
Location
Canada
Vehicle(s)
2019 Mustang GT
Yes and no. The latest shop found that I had one seating in Flight Control set wrong and it was cutting off on the top end (I forgot which one). When they changed the setting, I gained some on the top end.

In the attached dyno, it shows:
- Run 1: 3.75 with my original settings
- Run 2: 3.75 with revised setting
- Run 3: 3.625 with revised setting
Sorry not trying to take away from it but those numbers make no sense. With the revised settings you gained 13.34 hp and lost 19 tq, then you dropped down .125 in pulley size which at best is 30 rwhp but yet you gained 68.57 hp and 85.05 tq ?
 

pro 5.0

Well-Known Member
Joined
Feb 15, 2016
Threads
10
Messages
1,008
Reaction score
429
Location
Canada
Vehicle(s)
2019 Mustang GT
Well what setting was it?
The only setting that it could be is KNOCK LIMITING if you look at his run 1 there is a consistent dip in the hp line as the motor climbs to rpm, which would indicate the computer was pulling timing.
 
OP
OP
Kzanard

Kzanard

Active Member
Joined
Feb 16, 2016
Threads
5
Messages
44
Reaction score
18
Location
Boston
Vehicle(s)
2016 Mustang GT, 2015 4Runner TRD Pro
I am not sure if the exact setting, but Limiting might have been it.

Run 1 & 2 were done right after one another and there was surely some amount of heat soak (I don't have fans). Run 3 was done after the car had cooled a little :shrug:

i could care less about the numbers as long as the car runs smoothly, and it does. Definitely a very noticeable difference with the smaller pulley.

Just mainly posted in case anyone was curious about Mustang dyno vs Dynojet as the subject comes up a lot...
Sponsored

 
 




Top