99mx5 EFR build
#522
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Thanks!
I already have a sheet of Alumalite purchased to make a splitter. The projects are starting to pile up. I have the splitter, new brake discs, new brakes and brake ducting to do, but I can't take the car apart yet. I have a dyno session scheduled for this Friday. I'll finally see what power the car makes at 24PSI.
Any guesses as to how much?
315 @ 12PSI
323 @ 14PSI
xxx @ 24PSI
I already have a sheet of Alumalite purchased to make a splitter. The projects are starting to pile up. I have the splitter, new brake discs, new brakes and brake ducting to do, but I can't take the car apart yet. I have a dyno session scheduled for this Friday. I'll finally see what power the car makes at 24PSI.
Any guesses as to how much?
315 @ 12PSI
323 @ 14PSI
xxx @ 24PSI
Last edited by 99mx5; 02-09-2015 at 09:54 PM.
#526
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I have no RPM sensor in my EFR. Stock is right, I've been running for a while and have raced a few events at this boost level for a while. This dyno session is to ensure longevity and to see how much power its making.
#533
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BorgWarner Matchbot <- knock yourself out. Its a fun little tool
#535
That turbo based on the map can move maximum 44lbs, that's around 440hp. Now you are running that turbo to the **** at those numbers. I can see the car gaining torque at the low end by upping the boost, not sure if that torque will carry over to the upper rpm's for 400hp. 94 Octane it might see 370whp, potentially over-spinning the turbo. Not sure if I would drive around like that on a daily basis. You are sitting on the edge of bad surge!
#536
You dont get surge for pushing off the right side of the compressor map. you just run out of flow and the thing chokes up, you stop gaining boost and start loosing power as you increase the wastegate duty cycle. You only get surge for going left of the surge line, and thats pretty hard to do without a weird compressor-turbine mismatch, anti-lag, or anything else abnormal.
#539
You dont get surge for pushing off the right side of the compressor map. you just run out of flow and the thing chokes up, you stop gaining boost and start loosing power as you increase the wastegate duty cycle. You only get surge for going left of the surge line, and thats pretty hard to do without a weird compressor-turbine mismatch, anti-lag, or anything else abnormal.