Dyno results from today

Partyboy652

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455whp 497wtq
2.76 pulley I believe
Jlt cai
Bassani o/r x
Magnapack catback
Aluminum driveshaft

Tuned by Travis at gearheads performance.
It was also at least 96 or hotter out when the pulls were made.

Does this sound about right? From what I’ve been seeing these numbers are in the area I was expecting.
 

CobraBob

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SAE? STD? Depending on the tune, those numbers are representative of your mods. Can you post the dyno sheet?
 

Partyboy652

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blownstang4.6

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I don’t know. That’s not what my gauge says on my pillar. It usually says like 14.1 or so

When you're idling or normal driving right? Not 14.1 when you're at WOT? Kind of a crappy graph to read the exact numbers, but your wot afr should be 11.5-11.8.
 

Partyboy652

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Btw Travis told me my intercooler Pump was having trouble after lots of pulls so he told me to get it swapped ASAP. I’m assuming this is a common problem?
 

CobraBob

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Thanks for posting the dyno sheet. It would have been nice if they indicated whether the numbers were SAE or STD. You probably know that STD numbers will be higher than SAE.
 

01yellercobra

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Btw Travis told me my intercooler Pump was having trouble after lots of pulls so he told me to get it swapped ASAP. I’m assuming this is a common problem?

Yeah. It's a common issue with these cars. I would get the wideband fixed or replaced ASAP as well.
 

c6zhombre

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455/497 sounds just fine. If those are STD corrected and you want a quick guesstimate at SAE....just multiply by .975 it should get a ballpark number (443/484 in this case). Or....you could drop by Gearheads and just ask them to print you out the dyno sheet with SAE clearly printed on it.

Regarding air fuel.....how did they measure it on the dyno? Did they use a tail pipe sniffer and shove it in a tail pipe or did they lift the car up, find the bung on the mid pipe and screw in a true sensor? IIRC tail pipe sniffers will read leaner in a lot of cases. Maybe half a point.

Regarding your wideband.....get it fixed ASAP. Make sure your in car gauge is good. This is the heartbeat of your monitoring ability while you are driving and it needs to be reliable and accurate. WOT and going too lean is a recipe for grenading the motor.....quickly spotting the wideband gauge might save you from beating on a leaned out motor that needs attention via new parts and/or a computer retune.

Intercooler pump......diagnose and immediately replace if necessary.
 

01yellercobra

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That's too lean for my taste. I aim for 11.5 with my cars. I think 12 is asking for trouble personally.
 

blownstang4.6

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That's why your torque is so good because of the 12.1. I'd say 12.0 is fine if your tune isn't on the edge meaning a ton of timing stuffed in it or high Iat. If you see it creeping higher than 12.1 I'd get out of it. 11.7-11.8 is perfectly safe. 11.5 or lower is very safe.
 

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