Help with dyno results - low HP
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TECH Enthusiast
Joined: Feb 2005
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Help with dyno results - low HP Hi
98 A4
K&N induction
Mac Headers
Mac cat y pipe
Borla cat back
MSD coils
Recent compression test was excellent. Car runs fine. No engine codes. New plugs and wires. New cats.
Dyno results:
A/F = 12.6 @ 3800 RPM
A/F = 13.0 @ 4600
peak hp = 243
peak torque = 275
Mustang dyno
I expected atleast 300 HP at rear wheels. What to check?
torque converter lock up
knock sensor
fuel pressure
throttle body open
Dyno service out to lunch?
Any comments or help appreciated.
JA
98 A4
K&N induction
Mac Headers
Mac cat y pipe
Borla cat back
MSD coils
Recent compression test was excellent. Car runs fine. No engine codes. New plugs and wires. New cats.
Dyno results:
A/F = 12.6 @ 3800 RPM
A/F = 13.0 @ 4600
peak hp = 243
peak torque = 275
Mustang dyno
I expected atleast 300 HP at rear wheels. What to check?
torque converter lock up
knock sensor
fuel pressure
throttle body open
Dyno service out to lunch?
Any comments or help appreciated.
JA
Last edited by JGA; Jan 7, 2006 at 01:02 AM.
yea im gonna say dyno service was out to lunch thats crazy. sometimes ive noticed dynos are just way off my friend has a 97 kennebell cobra and it dynoed at 300 to the wheels so go up there and tell them there strait up wrong haha
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Hi
Thanks. I will try and find anouther dyno service. Atleast I know my A/F is OK. I have a Vinci tuner and tried to tune it, but it could not interface properly with the PCM code. I have sent it back for reprogramming. Hopfully I can get it back and get it to work.
Thanks JA
Thanks. I will try and find anouther dyno service. Atleast I know my A/F is OK. I have a Vinci tuner and tried to tune it, but it could not interface properly with the PCM code. I have sent it back for reprogramming. Hopfully I can get it back and get it to work.
Thanks JA
Originally Posted by SouthFL.02.SS
Mustang dynoes read lower numbers, typically, but serve well for tuning.
Try a dynojet next time if you want dyno war numbers.
Try a dynojet next time if you want dyno war numbers.
For a 98 car I would check the KR.It is common for 98's to pull 3.9 degree's of KR for no reasion.
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Originally Posted by Slowhawk
But they will if they are set up right.Some Mustang dyno's have been set to read in line of Dynojet's.
For a 98 car I would check the KR.It is common for 98's to pull 3.9 degree's of KR for no reasion.
For a 98 car I would check the KR.It is common for 98's to pull 3.9 degree's of KR for no reasion.
Would the fix be a new KR sensor or a software patch? Thanks for the input.
JA
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Verdad Gallardo First you need to scan a pull and see if it is actually pulling KR..Alot of the 98's I actually just delete the sensors when I get the tuning set.Keep in mind the tuning has to be spot on to do this or you risk wrecking the motor.