Dyno graph doesnt look right let me know what you think
hey guys just got the car tuned and i got the dyno sheets back and they dont look all that right to me let me know what you think about them
This is also on 9psi with stock map sensor and silencer in the exhaust
This is also on 9psi with stock map sensor and silencer in the exhaust
Well, first of all, you are plotting torque vs. AFR at a given RPM. That is not a usual type graph that shows torque and HP at given RPM. Secondly, if it is correct, I can't believe you still have a motor as it is showing AFR's all above 15. Tell us more about your setup and see if you can find a torque/HP graph.
That's hp vs tq. If they had afr hooked up it woulda been a third line. Hp and tq are on same scale so use left side for numbers.
Regardless though that tune needs help. U should never lose power on vtec engagement. NEVER. What is your setup?
Regardless though that tune needs help. U should never lose power on vtec engagement. NEVER. What is your setup?
Yea, it's definitely HP and TQ as the relationship between them jives.
You are doing great up to 6K RPM, and then it falls apart; your torque falls off a cliff.
With a blower that makes increasing boost with RPM, your torque should be climbing until around 8000RPM, and then level out and fall a little. Yours, however, just takes a dive. It really looks like your VTEC system isn't functioning. Or, your belt or clutch are slipping. You do have an aftermarket clutch, right?
What fuel management system are you using? AEM or Hondata...or maybe the Greddy Emanage. What injectors are you using?
What was the weight entered and Horsepower @ 50mph? Those are the settings that really will affect how a Mustang reads as they simulate the weight and drag. Put too low a weight in, and measured power will suffer; put too low a HP@50 and the high drag of the S2K won't be modeled. I don't think the latter setting matters as much as the first.
Regardless, something is seriously not right as you are losing torque after VTEC engagement. I think you should be around 220TQ @8500, which is around 355HP.
You are doing great up to 6K RPM, and then it falls apart; your torque falls off a cliff.
With a blower that makes increasing boost with RPM, your torque should be climbing until around 8000RPM, and then level out and fall a little. Yours, however, just takes a dive. It really looks like your VTEC system isn't functioning. Or, your belt or clutch are slipping. You do have an aftermarket clutch, right?
What fuel management system are you using? AEM or Hondata...or maybe the Greddy Emanage. What injectors are you using?
What was the weight entered and Horsepower @ 50mph? Those are the settings that really will affect how a Mustang reads as they simulate the weight and drag. Put too low a weight in, and measured power will suffer; put too low a HP@50 and the high drag of the S2K won't be modeled. I don't think the latter setting matters as much as the first.
Regardless, something is seriously not right as you are losing torque after VTEC engagement. I think you should be around 220TQ @8500, which is around 355HP.
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Looks like what happens with log manifolds in VTEC. You can try raising VTEC from 6500 to 7000 rpm, a bigger down pipe, and a bigger turbine housing. They will help, but honestly, the best way to prevent that torque drop off is to switch to a tubular manifold.
Tim
Tim






