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-   -   Some Interesting Datalog Info On A Turbofc (https://www.nopistons.com/2nd-generation-specific-17/some-interesting-datalog-info-turbofc-40981/)

1Revvin7 06-24-2004 01:47 AM

22deg C (71 deg F) is the intake temp before we start the run

ambient was 55deg F

from 0-120mph, 10psi stock turbo



intake temps reach 65 deg C or 149deg F,

they quickly fall after we are out of boost, but all I know is thats fu()&* dangerous!



@ 10psi the duty cycle is at 86%, about the max you want to run on the fuel injectors. Stock fuel pump/fpr/base fuel pressure(j9?) Air fuel ratio was 11.5/6 at this psi,

@ 14psi afr is @ 10.4 @ 96% duty cycle...

rowtareh 06-24-2004 02:20 AM


Originally Posted by 1Revvin7' date='Jun 24 2004, 02:47 AM
intake temps reach 65 deg C or 149deg F,

they quickly fall after we are out of boost, but all I know is thats fu()&* dangerous!

What would that lead to in the huge jump in temperature? And then it suddenly drops off? Just lead to detonation, flooding? I am new to it all pretty much.

j9fd3s 06-24-2004 10:33 AM

just keep your air temp map setup so that it richens you up as it gets hotter

1Revvin7 06-24-2004 12:04 PM


Originally Posted by RowTarEh?' date='Jun 24 2004, 02:20 AM
What would that lead to in the huge jump in temperature? And then it suddenly drops off? Just lead to detonation, flooding? I am new to it all pretty much.

They jump so high because the turbo produces a lot of heat as it compresses the intake charge. I've noticed it falls off really fast when you let off on the freeway.

CrassFC3S 06-24-2004 12:16 PM

my friend told me about this great idea he said build a box at the end of your intake and drop a bunch of dry ice in it to cool off temps... i was thinking this could be done on the intake intercooler and turbo

1Revvin7 06-24-2004 02:35 PM

I just remembered he has a boost leak, so those air temp #s are not accurate for 10psi. After its fixed I will post the results again.


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