Cobra Jet MAF transfer

[06300CSRT8]

I am going to install a CJ cold air intake on a whipple vehicle, and I am curious if anyone has the MAF data?

Part of me says it should be the same or similar to the Whipple calibration, which uses a same 123MM MAF and would be logical is similar to the CJ.

[Jn2]

You could always scale the MAF up by using the equation in the MAF calibration thread. Then adjust using LTFT+STF(assuming all injector and fuel pressure data is accurate). That should get you pretty close to +/-5%

[06300CSRT8]

Thanks, that was my original plan, but since they are both 123MM I think I will just start with the Whipple calibration and go from there.

[Jn2]

Thanks, that was my original plan, but since they are both 123MM I think I will just start with the Whipple calibration and go from there.

That should work fine as a base...

[HextallS550]

What about the 2016 CJ calibration file that's in the repository?

[C_Murph12]

You could always scale the MAF up by using the equation in the MAF calibration thread. Then adjust using LTFT+STF(assuming all injector and fuel pressure data is accurate). That should get you pretty close to +/-5%

Where is this thread located. I searched but I do not see it.

[15PSI]

Which car do you need this for? Which CAI and TB?

[AKDMB]

Post #135

http://www.hptuners.com/forum/showth...F-tuning/page7

[mstang_man]

i have the Maf 123mm JLT

[C_Murph12]

The M-9600-SCJ16 is 140mm at the MAF sensor location. I want to use that with the Whipple Stage II. So my math would be:

Whipple Radius= 123mm/2 61.5mm
Cobra Jet Radius= 140mm/2 70mm
Area of circles= Pi(61.5mm)2 Pi(70mm)2
Area= 11882.28881 15393.80400

Area of WS MAF 11882.28881
Area of SCJ MAF 15393.80400

Ratio of new to old area 15393.80400 / 11882.28881

Ratio of WS area to SCJ area= 1.295525150595965

Multiply all of the lb/min airflow values in the MAF curve by 1.295525150595965

Thanks @AKDMB