CAMARO6 - View Single Post - Edelbrock logs

toohighpsi · 08-17-2016, 01:37 AM

Adding an orifice to the bypass will impact part throttle driveability, it shoudn't have any change on the MAP at WOT (other than delay the onset of boost). I think the Edelbrock has the MAP sensor mounted in one of the ports (like #8?) if that is the case it would possibly be the cause of the erratic MAP signal that you see. Most all of the engine controls are dominated by MAF so I wouldn't be terribly worried about this.

I do think the IATs seem pretty high for what I'm used to, I normally only see a 20-25 degree rise in temp during a 1/4 mile pass (even with the small Maggie coolant tank) and don't like to see the IAT hit much over 140-150F. You were hitting 180+; from the R2300 compressor map, the delta T at 13K rpm and 7 psi is 96 degrees F, so if the SC inlet is 90F you would have engine air inlet temp of about 186 without using any intercoolers.

Now, I do find it hard to believe that you can make 560 RWHP with these inlet temps, unless it manages to stay cool on the dyno and this is symptom that happens on the street -or- the inlet air temp sensor is faulty or incorrectly calibrated. Does the IAT match ambient temp when the car is fully cooled off?

Even so I'd chack a couple things - Is your IC pump running? Double check the lines to make sure that they are connected correctly in the system. is these any lines kinked or pinched from the install?

08-17-2016, 01:37 AM	#18
toohighpsi Drives: 2015 C7 Z06 M7 Join Date: Dec 2012 Location: So-Cal Posts: 665	Adding an orifice to the bypass will impact part throttle driveability, it shoudn't have any change on the MAP at WOT (other than delay the onset of boost). I think the Edelbrock has the MAP sensor mounted in one of the ports (like #8?) if that is the case it would possibly be the cause of the erratic MAP signal that you see. Most all of the engine controls are dominated by MAF so I wouldn't be terribly worried about this. I do think the IATs seem pretty high for what I'm used to, I normally only see a 20-25 degree rise in temp during a 1/4 mile pass (even with the small Maggie coolant tank) and don't like to see the IAT hit much over 140-150F. You were hitting 180+; from the R2300 compressor map, the delta T at 13K rpm and 7 psi is 96 degrees F, so if the SC inlet is 90F you would have engine air inlet temp of about 186 without using any intercoolers. Now, I do find it hard to believe that you can make 560 RWHP with these inlet temps, unless it manages to stay cool on the dyno and this is symptom that happens on the street -or- the inlet air temp sensor is faulty or incorrectly calibrated. Does the IAT match ambient temp when the car is fully cooled off? Even so I'd chack a couple things - Is your IC pump running? Double check the lines to make sure that they are connected correctly in the system. is these any lines kinked or pinched from the install?